What Is the Customs-Port-Trade Single Window? Can Individuals Use It? How Does It Differ From EZ WAY?

What is the Customs-Port-Trade Single Window, and what is its official address?

The Customs-Port-Trade Single Window lets importers, exporters, customs brokers and agencies such as Customs, trade permit authorities and port authorities handle applications and inquiries in one place. The official portal is portal.sw.nat.gov.tw, and its official site name is "CPT Single Window". Other Chinese-language search phrases commonly seen online, which would read in English as "Customs Administration Customs-Port-Trade Single Window" and "Trade-Van (Tradevan) Single Window" (the latter a shorthand), all refer to this portal run by the Customs Administration, which is different from Tradevan, the company.

What can you look up in the Single Window's "Certificate-Free Inquiry Service"?

The "Certificate-Free Inquiry Service" is the inquiry area under the Single Window's customs services; the official path is Customs-Port-Trade Single Window / Customs Services / Certificate-Free Inquiry Service. The same page header also lists the "Certificate-Free Application Service (Simple Applications)" and the "Certificate-Based Customs Services", which require logging in with a certificate. The table below lists only items this page checked on the official pages on 2026-11-02.

What is the legal basis of the Customs-Port-Trade Single Window?

The legal basis is Article 10-1 of the Customs Act; the operating rules are the Regulations Governing the Operation and Implementation of the Customs-Port-Trade Single Window (amended on ROC year 108, month 2, day 26), made under paragraph 3 of that article.

• Article 10-1 of the Customs Act: matters may be handled through the Customs-Port-Trade Single Window established by Customs; the regulations on its operation, management, fee standards and so on are to be prescribed by the Ministry of Finance (Taiwan) in consultation with the agencies concerned.
• Article 3 of the Regulations: the operating items include application and inquiry services between participating operators and participating agencies, coordination and data-exchange services among participating agencies, cross-border data-exchange services between countries, and other value-added services.
• Article 7 of the Regulations: an electronic document that a participating operator transmits through the Single Window is deemed to have reached the participating agency that is legally to receive it once it has been entered into the Single Window and recorded by computer; a notice of decision that a participating agency sends out through the Single Window is presumed to have been served on the person to be notified (Article 7, paragraph 2); where other laws provide otherwise, those provisions apply.
• International background: Article 10, paragraph 4 of the WTO Agreement on Trade Facilitation (TFA) requires Members to "endeavour" to establish or maintain a single window (it is not mandatory); UN/CEFACT Recommendation No. 33 (2005) defines a single window as a mechanism for submitting standardized information and documents to a single entry point, with electronic data submitted only once. Taiwan lists Article 10.4 (single window) as a Category A measure, implemented by 2017-02-22, and completed the transparency notification to the WTO Committee on Trade Facilitation under Article 10.4.3 (G/TFA/N/TPKM/1, 2018-08-01).

Who uses the Customs-Port-Trade Single Window? Can individuals use it too?

Under Article 2 of the Regulations, "participating operators" include domestic import and export businesses, transport, warehousing, customs brokerage, freight forwarding, inspection application, container terminal, financial and express delivery businesses, free trade zone enterprises, and individuals or other operators involved in the import and export of goods; "participating agencies" are government agencies for customs, ports, trade permits, inspection and quarantine. So, within the scope of users the regulations list, individuals are among those who may use it.

• Registration requires a certificate: Article 6 provides that applying through the Single Window by computer connection is limited to registration with a Government Certificate, Citizen Digital Certificate, Industry and Commerce Certificate, or Organization and Group Certificate; those connecting by electronic data transmission may additionally use a customs-dedicated certificate.
• Mobile Citizen Digital Certificate: a press release of 2025-11-04 by the Customs Administration, Ministry of Finance (Taiwan) (published on the Ministry of Finance website) explains that on 2025-05-22 the Single Window first let already registered users log in with the Mobile Citizen Digital Certificate, with no card insertion and no password entry; from 2025-10-01 it also lets members of the public register with the Mobile Citizen Digital Certificate.
• The authorities publish no statistics on how many ordinary online-shopping consignees use the Single Window directly. This page found none, so it does not write statements such as "most do not operate it directly."

How do individuals register for and log in to the Customs-Port-Trade Single Window?

Individuals registering for the Customs-Port-Trade Single Window need a Citizen Digital Certificate (insert the card and enter the PIN, or use the Mobile Citizen Digital Certificate): on the home page of portal.sw.nat.gov.tw, click "Certificate Registration" and complete three steps: choose the category "Individual", pass the certificate check, and fill in the basic data; afterwards you log in with the same certificate. If you only use the Certificate-Free Inquiry Service, you do not need to log in.

1. 1Choose the application category "Individual"

   On the portal.sw.nat.gov.tw home page, click "Certificate Registration" at the top (Citizen Digital Certificate / Industry and Commerce Certificate registration), choose category "Individual" and attribute "General Individual", tick "I have read and agree to the data use statement" and press "Next". The registration page cannot be opened by pasting its URL directly, so click through from the home page (HowBridge tested on 2026-11-02).

2. 2Certificate check: insert the card and enter the PIN, or use the Mobile Citizen Digital Certificate

   Insert the Citizen Digital Certificate into the card reader, enter the PIN and press "Load Citizen Digital Certificate"; if you use the Mobile Citizen Digital Certificate, enter your national ID number in the "Mobile Citizen Digital Certificate registration" field, and have the phone with the Mobile Citizen Digital Certificate installed ready first. The official registration page states that this certificate "will be used for the user's login"; if the certificate has already been registered, the system will prompt you and return you to the home page.

3. 3Fill in basic data and set a password

   Enter your email (the official page states "the email is the dedicated login account when changing certificates"), contact name, national ID number (first press "Check whether it exists"; you can continue only if it has not been registered), date of birth, contact phone and contact address, then set a login password: at least 8 characters, meeting at least three of the four rules of uppercase letters, lowercase letters, digits and symbols.

4. 4Finish registration, then log in with the certificate

   When the screen shows "Congratulations, you have completed the registration process", you are done. A Ministry of Finance (Taiwan) press release of 2025-11-04 explains that registered users have also been able to log in with the Mobile Citizen Digital Certificate since 2025-05-22, without inserting a card or entering a password. The official registration page reminds you to extend or re-apply for your Citizen Digital Certificate 60 days before it expires, and then update it under "Certificate Replacement".

What is the NHI card verification (MI52) on the Customs-Port-Trade Single Window?

This is the identity verification for registering with EZ WAY, not a registration certificate for the Customs-Port-Trade Single Window itself. According to the Customs Administration, Ministry of Finance (Taiwan), press release of 2025-10-21, from 2025-10-28 nationals who newly register with EZ WAY by "SMS verification (NHI card number)" must instead verify by inserting their physical National Health Insurance card, and the card-insertion entry point is on the Customs-Port-Trade Single Window.

• Path: Customs-Port-Trade Single Window / Customs Services / Certificate-Free Application Service (Simple Applications) / General Import / (MI52) Real-Name Verification Platform NHI Card Verification (card insertion required).
• What you need: your physical National Health Insurance card, a computer and a card reader.
• Not affected: "telecom verification" and "SMS verification (chip Resident Certificate)" still need no card insertion; those already registered are, in principle, not affected.
• Registration for the Single Window itself is still made under Article 6 of the Regulations, with a Government Certificate, Citizen Digital Certificate, Industry and Commerce Certificate, or Organization and Group Certificate.
• A message that reads "Customs Administration - Customs-Port-Trade Single Window website" with the address gov.tw/999: HowBridge tested on 2026-11-02 that gov.tw/999 redirects to portal.sw.nat.gov.tw, and the URL parameters point to "Certificate-Free Application Service (Simple Application) › General Import › (MI52) Real-name Verification Platform: NHI Card Verification (card insertion required)"; according to the government short URL service, gov.tw short URLs can only be applied for by government agency personnel with a gov.tw email address, and the original URL must also be on the gov.tw domain. This page cannot find out who sent the message; the safest approach is still to type portal.sw.nat.gov.tw yourself and follow the path above (the redirect destination may change later).

How does the Customs-Port-Trade Single Window differ from EZ WAY?

People often search for "CPT Single Window ezway" together, but the two differ in who built them, in nature, and in identity verification. The "Correspondence to provisions" row in the table below is this page's own summary based on the nature of the builder: the express cargo regulations do not write out the name "EZ WAY". According to the Customs Administration statement of 2026-08-06, Tradevan may build the EZ Way APP on its own under Article 12 of the Regulations Governing the Establishment and Management of Customs Brokers and Article 11 of the Regulations Governing the Licensing and Management of Customs Clearance Network Operations; at the Director-General's press conference (as reported by the Central News Agency on 2026-08-03), he also said that other operators qualified to run a customs clearance network, such as Fanyu, can build online authorization APPs too. So the third item does not mean EZ WAY alone.

If I do not want to use EZ WAY, can I use the Customs-Port-Trade Single Window instead?

Yes. When imported express cargo is entrusted to a customs broker to be declared with a simplified declaration form, Article 18 of the Regulations Governing Customs Clearance of Sea Express Cargo and Article 17 of the Regulations Governing Customs Clearance of Air Express Cargo (both amended on ROC year 115, month 2, day 23) provide that the customs brokerage authorization must be completed in one of the following ways:

• First item: written authorization: a per-case or long-term authorization made in writing; for a written per-case authorization, the customs broker gives an undertaking when declaring online and then presents the authorization document as Customs requires.
• Second item: Customs-Port-Trade Single Window: an online per-case or long-term authorization made through the Customs-Port-Trade Single Window.
• Third item: real-name verification platform: an online per-case authorization made through a real-name verification platform built by a customs clearance network operator.

How is imported express cargo classified? What limits apply to simplified declarations?

Article 11 of the express cargo clearance regulations divides imported express cargo into express documents and three price categories, and the price categories are set by dutiable value. The Customs Administration FAQ explains that simplified declarations apply to imported express cargo that does not involve import regulations and whose dutiable value does not exceed NT$50,000. The dutiable value is the CIF (cost, insurance and freight) value of the imported goods, so freight up to the Taiwan port of arrival is also included. For the overall import clearance process, see A Complete Guide to Taiwan Import Customs Clearance.

What should I do if I get a message asking me to log in to the "Customs Administration - Customs-Port-Trade Single Window website" or to pay back duties?

Do not click the link in the message and do not remit money: type portal.sw.nat.gov.tw yourself, go to the Certificate-Free Inquiry Service GC329 and enter the house bill of lading number to check whether such imported express cargo is being cleared (Taipei Customs, 2024-12-30); if in doubt, call 165 or the Single Window service center at 0800-299-889 (Customs Administration, 2026-08-21).

• Ministry of Finance (Taiwan) press release of 2025-02-12: Customs officers will not proactively notify people by phone, text message, email or instant messaging or other non-written channels to pay taxes or fines, and will never ask them to remit money to a private account.
• Taxes, fees and fines must all be paid through a financial institution directly into the national treasury account; if you receive a similar notice, call the Customs Administration or the relevant Customs office to verify it, and do not remit money as instructed.
• This is a statement by Customs and its scope goes beyond the Single Window; HowBridge's own notices will also never ask you to remit money to a private account.
• Customs Administration press release of 2026-10-29: Customs officers will never ask the public to remit money through private messaging apps, or handle parcels or import/export cargo privately; if in doubt, call the Customs Administration at (02)2550-5500 or the 165 anti-fraud hotline.
• Customs Administration reminder of 2026-08-21: do not click unknown links and do not enter personal data such as credit card details. If a message mentions NHI card verification on the Single Window, first read NHI card verification (MI52) above to check whether it applies to you (people who newly registered for EZ WAY using "SMS verification (NHI card number)" since 2025-10-28).

How do I complete the customs brokerage authorization for imported express cargo and track progress?

The following 4 steps apply to parcels bought on Chinese e-commerce platforms and sent to the HowBridge Shenzhen warehouse.

1. 1Order on a Chinese e-commerce platform and ship to the Shenzhen consolidation warehouse

   Enter the address of the HowBridge Shenzhen consolidation warehouse and your member number as the recipient details; HowBridge only handles consolidation from mainland China to Taiwan.

2. 2Complete the customs brokerage authorization

   The practice described on HowBridge's site is EZ WAY online authorization (for the workflow, see EZ WAY advance confirmation of authorization); from 2026-03-01, individuals who give an online authorization through real-name verification for a simplified import declaration must confirm the authorization in advance. If you want to use online authorization through the Single Window or written authorization, first ask customer service whether it is supported.

3. 3Check and confirm after receiving the notification

   When the EZ WAY notification arrives, open the house bill of lading number concerned and check that the item name and declared amount (purchase price + freight) match what you actually bought; if they match, tap "Declaration matches"; if they do not match or someone is using your identity, tap "Declaration does not match" and contact the customs broker. If the authorization is not completed, Customs may refuse to accept the declaration for that parcel. See the EZ WAY tutorial for details.

4. 4Use the Single Window to look up information

   In the Single Window's Certificate-Free Inquiry Service you can use the Comprehensive Tariff and Tax Rate Inquiry (GC411), the Import and Export Regulations Inquiry for Goods (GC473) and the End-to-End Status Tracking of Simplified-Declaration Imports (GC329), and you can enter an express house bill of lading number in the Simplified Import Declaration Receipt Result Inquiry (GB321); to look up a tariff code, see also How to look up a CCC Code.

How is a single window defined internationally? What research is worth consulting?

The research below only provides background and cannot prove the actual results of Taiwan's single window:

• WTO Agreement on Trade Facilitation, Article 10, paragraph 4 (2014): Members shall endeavour to establish or maintain a single window; for data already received through the single window, participating agencies in principle may not ask for it again. This is an obligation to "endeavour".
• Cheng Kuo-Lung, 2011 (master's thesis, Ling Tung University): an interview study from before launch found that customs brokers care most about efficiency, and that the single window is not intended to replace existing channels for applications and has little effect on customs brokers in terms of simplifying clearance, though they also worry it may crowd out the employment of industry workers.
• OECD, 2013: estimates that the combined improvement of trade facilitation measures could reduce total trade costs by about 14.5% for low income countries, 15.5% for lower middle income countries and 13.2% for upper middle income countries; these three figures are estimates by income group, not an estimate for Taiwan, and not the effect of a single window on its own.
• Tosevska-Trpcevska, 2014: according to the abstract, a study of enterprises in North Macedonia found that introducing a single window could save time and labor; a single-country study that cannot be extended to Taiwan.

What are common terms for the Customs-Port-Trade Single Window?

Customs-Port-Trade Single Window

An online portal run by the Customs Administration, Ministry of Finance (Taiwan), integrating applications and inquiries for customs clearance, trade permits and port services; official site name CPT Single Window.

Single window

Single Window: a mechanism that lets operators submit standardized information and documents to a single entry point, with electronic data needing to be submitted only once (UN/CEFACT Recommendation No. 33); the Customs-Port-Trade Single Window is Taiwan's single window.

EZ WAY

An online authorization APP that Trade-Van Information Services Co. (Tradevan) built and operates with its own investment; it was not commissioned by Customs.

Customs brokerage authorization

The consignee's authorization for a customs broker to handle import declaration; for a simplified declaration of imported express cargo, it can be completed in any one of the three ways provided in the regulations.

Simplified declaration

A simplified declaration for imported express cargo, applicable to cargo that does not involve import regulations and whose dutiable value does not exceed NT$50,000.

Customs clearance network operator

An operator that runs a customs clearance electronic data transmission network; the real-name verification platform in the third item of the express cargo regulations is built by this kind of operator.

Mobile Citizen Digital Certificate

The mobile version of the Citizen Digital Certificate; since 2025-10-01 the Single Window offers registration with it.

Dutiable value

The basis for calculating tax, being the CIF (cost, insurance and freight) value of the imported goods, which includes freight and insurance up to the Taiwan port of arrival.

What are the sources and the scope of the fact-check?

The sources below were consulted on 2026-09-30, and entries added or rechecked on 2026-11-02 show their own consultation date; document dates are shown separately from the consultation date, and no update date is invented where none is stated.

Government, agency, international documents and news reports

• Laws & Regulations Database of Taiwan: Customs Act (Article 10-1) | Document date: amended on ROC year 111, month 5, day 11; Article 10-1: matters may be handled through the Customs-Port-Trade Single Window established by Customs; the regulations on the operation, management, fee standards and so on of the Customs-Port-Trade Single Window are to be prescribed by the Ministry of Finance (Taiwan) in consultation with the agencies concerned.
• Laws & Regulations Database of Taiwan: Regulations Governing the Operation and Implementation of the Customs-Port-Trade Single Window | Document date: amended on ROC year 108, month 2, day 26; Article 1 is made under Article 10-1, paragraph 3 of the Customs Act; Article 2 participating operators include individuals; Article 3 operating items; Article 4 handled by the Customs Administration, Ministry of Finance (Taiwan); Article 6 registration with certificates; Article 6-1 customs-dedicated certificate fee; Article 7 electronic documents recorded are deemed to have arrived; Article 9 connection 24 hours a day, every day of the year.
• Laws & Regulations Database of Taiwan: Regulations Governing Customs Clearance of Sea Express Cargo | Document date: amended on ROC year 115, month 2, day 23; Article 18: the customs brokerage authorization must follow one of three ways, the second item being an online per-case or long-term authorization through the Customs-Port-Trade Single Window; where the authorization was not completed and recorded in the Customs clearance information system, Customs may refuse to accept the declaration; Article 18-1: where the conditions are met, an application may be made to correct the consignee to the taxpayer and return the cargo for export; Article 19, paragraph 3: a person who declares the consignee's real-name-verified mobile phone number need not declare the national identification number (Taiwan national ID number) and similar numbers; Article 32: Article 18, paragraph 2 takes effect on 2026-03-01 (ROC year 115, month 3, day 1).
• Laws & Regulations Database of Taiwan: Regulations Governing Customs Clearance of Air Express Cargo | Document date: amended on ROC year 115, month 2, day 23; Article 17: the three ways of customs brokerage authorization are the same as in Article 18 of the sea express regulations; Article 18, paragraph 3: a person who declares the consignee's real-name-verified mobile phone number need not declare the national identification number (Taiwan national ID number) and similar numbers; Article 17-1: the return provisions are to the same effect as Article 18-1 of the sea express regulations; Article 29: Article 17, paragraph 2 takes effect on 2026-03-01 (ROC year 115, month 3, day 1).
• Customs-Port-Trade Single Window (Customs Administration, Ministry of Finance (Taiwan)) home page | Document date: consulted 2026-11-02; the footer credits the Customs Administration, Ministry of Finance (Taiwan), as copyright holder; the home page menu lists customs services, port services, trade permits and the Tariff and Tax Rate Zone (the online authorization system sits under "Certificate-Based Customs Services" in the side menu of the customs services page); customer service 0800-299-889.
• Customs-Port-Trade Single Window: Certificate-Free Inquiry Service | Document date: consulted 2026-11-02; lists GC411 Comprehensive Tariff and Tax Rate Inquiry, GC473 Import and Export Regulations Inquiry for Goods, and GC329 End-to-End Status Tracking of Simplified-Declaration Imports; the import clearance process group also lists GB301 and GB321, and the export clearance process group lists GB309, GB310, GB312, GB314 and GB322.
• Ministry of Finance (Taiwan) press release: Customs-Port-Trade Single Window offers registration with the Mobile Citizen Digital Certificate | Document date: 2025-11-04; since 2025-10-01, the Customs-Port-Trade Single Window offers members of the public registration with the Mobile Citizen Digital Certificate; the release says the Mobile Citizen Digital Certificate needs no card insertion and no password entry (originally referring to the login function for those already registered); it also lists the service address portal.sw.nat.gov.tw.
• Customs Administration, Ministry of Finance (Taiwan), press release: explanation of the EZ Way APP | Document date: 2026-08-03; the EZ Way APP is an online authorization APP that Trade-Van Information Services Co. (Tradevan) built and operates with its own investment; it is only one of the ways to give a customs brokerage authorization, the public may choose a paper per-case authorization or long-term authorization, and regulations do not mandate it; fees are charged to customs brokers, not to ordinary members of the public.
• Customs Administration, Ministry of Finance (Taiwan): supplementary explanation of Customs on public concerns about using the EZ Way APP | Document date: 2026-08-03; current regulations provide that online authorization and paper authorization may be chosen as alternatives; the public may still ask the customs broker to use paper authorization for the declaration; EZ Way was not commissioned by Customs; it also clarifies that on ROC year 115, month 7, day 29 (2026-07-29) the Director-General told the Finance Committee of the Legislative Yuan that the matter would be carefully evaluated and a review report submitted within 3 months, and did not say that the EZ Way APP would be taken back into public hands.
• Customs Administration, Ministry of Finance (Taiwan): explanation of real-name verification for imported express simplified declarations | Document date: 2021-04-09; the real-name verification procedure that binds a mobile phone number to a personal national identification number (Taiwan national ID number) or residence certificate number applies to simplified declarations of imported express cargo.
• Customs Administration, Ministry of Finance (Taiwan): FAQ on simplified declarations of imported express cargo | Document date: published 2020-07-08; consulted 2026-11-02; simplified declarations apply to imported express cargo that does not involve import regulations and whose dutiable value does not exceed NT$50,000; online customs brokerage authorization can be confirmed by replying from a real-name-verified mobile-number device or by logging in with a Citizen Digital Certificate; the e-commerce customs clearance platform registers users with a Citizen Digital Certificate; companies and business firms cannot use real-name verification; Q17 states that you can enter a declaration number under Customs-Port-Trade Single Window / Customs Services / Certificate-Free Inquiry Service / Import Clearance Process (GB301, GB321), while frequent-import data requires logging in with a Citizen Digital Certificate (GB377).
• Customs Administration, Ministry of Finance (Taiwan): Express cargo | Document date: 2026-07-08; cargo with a dutiable value of NT$2,000 or less is exempt from customs duty and from the business tax and commodity tax collected by Customs; if the same taxpayer has had duty-free release applied more than 6 times within a half-year period, it no longer applies; the half-year periods are months 1 to 6 and months 7 to 12 of each year; taxes and fees are paid on the person's behalf by the express carrier.
• Customs Administration, Ministry of Finance (Taiwan): What taxes and fees are payable on imported goods? | Document date: 2026-07-13; the dutiable value is the CIF (cost, insurance and freight) value of the imported goods.
• Ministry of Finance (Taiwan) press release: Keelung Customs explains the Customs-Port-Trade Single Window online authorization system | Document date: 2023-05-23; when importing and exporting firms and individuals authorize a customs broker, whether per-case or long-term, they can all use the Customs-Port-Trade Single Window online authorization system; the release says the online authorization system is free of charge.
• Ministry of Finance (Taiwan) press release: Fraudsters posing as Customs to cheat people of tax payments; stay alert | Document date: 2025-02-12; Customs officers will not proactively notify people by phone, text message, email or instant messaging or other non-written channels to pay taxes or fines, and will never ask them to remit money to a private account; taxes, fees and fines must all be paid through a financial institution directly into the national treasury account; if you receive a similar notice, call the Customs Administration or the relevant Customs office to verify.
• Central News Agency (CNA): Customs Director-General explains that use of EZ Way is not mandatory | Document date: 2026-08-03; media report: at a press conference the Director-General said EZ Way is only one of the tools for confirming the authorization relationship, that in a single month some 4 million-plus simplified customs declarations used EZ Way, about 70% of all declarations, with the other roughly 30% using paper authorization and other routes (including long-term authorization); the report also records Tradevan adding that online authorization can be done with a Citizen Digital Certificate. This is an official's oral statement said to cite statistics, and the Customs Administration website has not been seen to publish a corresponding statistical table; Tradevan also explained that it charges customs brokers on a tiered basis, with service fees between NT$0.8 and NT$3.5 (Tradevan's account); the Director-General said EZ WAY does not charge ordinary members of the public, and that operators qualified to run a customs clearance network, such as Tradevan and Fanyu, can all build online authorization APPs.
• World Trade Organization (WTO): Agreement on Trade Facilitation (TFA) (Article 10, paragraph 4, single window) | Document date: 2014; Members shall endeavour to establish or maintain a single window enabling operators to submit documentation and data requirements for import, export or transit to the participating authorities through a single entry point; for data already received through the single window, participating authorities in principle may not ask for it again (with exceptions).
• UN/CEFACT: Recommendation No. 33 (ECE/TRADE/352) | Document date: 2005; a single window is a mechanism that lets parties involved in trade and transport lodge standardized information and documents with a single entry point to fulfil all import, export and transit regulatory requirements; electronic data should be submitted only once. The copy read is the mirror PDF on digitalizetrade.org.
• WTO Trade Facilitation Agreement Database: Chinese Taipei member profile (PDF) | Document date: 2017 as shown on the page; consulted 2026-11-02; Chinese Taipei lists Article 10.4 (single window) as a Category A measure, implemented by 2017-02-22, and completed the transparency notification under Article 10.4.3 (G/TFA/N/TPKM/1, 2018-08-01, with later revised versions); this is only a notification record and does not describe the system's content or results.
• Customs Administration: CPT Single Window presentation (included in the WTO Trade Facilitation Agreement Database under "Experience sharing: 10.4 Single window") | Document date: 2019-10-15 to 16; the presentation states that the system integrates the three platforms e-Customs, e-Trade and e-Port and went live in 2013-08; this is the government's own presentation, not a third-party assessment.
• Customs Administration, Ministry of Finance (Taiwan), press release: new EZ WAY registrations by SMS verification with the NHI card number switch to physical NHI card verification | Document date: 2025-10-21; consulted 2026-11-02; from 2025-10-28, new registrations by SMS verification (NHI card number) require verification by inserting the physical National Health Insurance card, through the Customs-Port-Trade Single Window (MI52); telecom verification and SMS verification with a chip Resident Certificate need no card insertion.
• Customs Administration, Ministry of Finance (Taiwan), press release: advance confirmation of authorization applies to all express cargo | Document date: 2026-02-24; consulted 2026-11-02; from 2026-03-01, advance confirmation of the authorization applies across the board to individuals who give an online authorization through real-name verification for simplified import declarations of express cargo.
• Customs Administration, Ministry of Finance (Taiwan): advance confirmation of authorization information page | Document date: 2021-12-28; consulted 2026-11-02; opening the house bill of lading number and tapping "Declaration matches" completes the advance authorization; if there is no reply or the reply is "Declaration does not match", that cargo cannot be declared for import; if someone on the advance-authorization list has not confirmed the authorization, the system returns "B6F error: declaration not accepted" when the declaration is filed.
• Customs Administration, Ministry of Finance (Taiwan): statement that Tradevan may legally build EZ Way on its own | Document date: 2026-08-06; consulted 2026-11-02; Tradevan may build it on its own under Article 12 of the Regulations Governing the Establishment and Management of Customs Brokers and Article 11 of the Regulations Governing the Licensing and Management of Customs Clearance Network Operations; on-site inspections of personal data protection will be carried out; a review report is to be submitted within 3 months (restating the Director-General's 7/29 commitment in the Legislative Yuan; the review covers the legislators' proposal that "the service be officially commissioned to a private operator, with the Customs Administration setting a uniform fee standard"); as of a check of Customs Administration and Ministry of Finance press releases on 2026-11-02, no report had been found published.
• Customs Administration, Ministry of Finance (Taiwan): download links for the real-name verification APP "EZ WAY" | Document date: 2020-03-18; consulted 2026-11-02; lists the official iOS App Store and Google Play store pages.
• Customs-Port-Trade Single Window: certificate registration (Citizen Digital Certificate / Industry and Commerce Certificate registration) | Document date: consulted 2026-11-02; the entry is "Certificate Registration" at the top of the home page (the registration page and manual cannot be opened by pasting the URL directly); individuals choose category "Individual" and attribute "General Individual"; the certificate check requires inserting the card and entering the PIN, or using the Mobile Citizen Digital Certificate and entering the national ID number, and "this certificate will be used for the user's login"; basic data include an email address (the dedicated login account when changing certificates), date of birth, contact phone and address; the login password must be at least 8 characters and meet at least three of four rules; the certificate must be extended or re-applied for 60 days before it expires; customer service is available Mon–Fri 08:30–17:30 at 0800-299-889. The same page offers the Customs-Port-Trade Single Window Simple Registration Manual V1.4 (2023-06-16), which lists the Citizen Digital Certificate card and the resident certificate chip card as options for individuals.
• Ministry of Finance (Taiwan) press release: to avoid cross-border online shopping scams, verify through multiple channels on the Customs-Port-Trade Single Window website | Document date: 2024-12-30 (Taipei Customs); consulted 2026-11-02; if you receive a notice to pay tax on imported goods, first ask the sender for the house bill of lading number and check at the Single Window under Customs Services / Certificate-Free Inquiry Service / Container (Cargo) End-to-End Process / (GC329) whether such imported express cargo is being cleared; the Customs office does not notify people by phone, text message or similar to remit tax payments.
• Customs Administration, Ministry of Finance (Taiwan): anti-fraud awareness messages | Document date: 2026-08-21; consulted 2026-11-02; do not click unknown links and do not enter personal data such as credit card details; for suspicious messages, call the 165 anti-fraud hotline or the Single Window service center at 0800-299-889 to verify.
• Customs Administration, Ministry of Finance (Taiwan) press release: fake friendship, real fraud! Demanding remittances in the name of Customs officers is a scam, please stay alert | Document date: 2026-10-29; consulted 2026-11-02; Customs officers will never ask the public to remit money through private messaging apps or handle parcels or import/export cargo privately; taxes and fines must be paid into the national treasury through lawful payment channels; to verify, call the Customs Administration at (02)2550-5500 or 165.
• Government short URL service: about the government short URL service | Document date: consulted 2026-11-02; the service is "only for government agency personnel with a gov.tw email address", and for a short URL application "the domain of the original URL must be gov.tw". HowBridge tested on 2026-11-02: gov.tw/999 redirects with HTTP 302 to portal.sw.nat.gov.tw/APGW/LoginFree, and the navigation path in the URL parameters is "Certificate-Free Application Service (Simple Application) › General Import › (MI52) Real-name Verification Platform: NHI Card Verification (card insertion required)".

Research literature

What are common questions about the Customs-Port-Trade Single Window?

What is the Customs-Port-Trade Single Window?

What is the official address of the Customs-Port-Trade Single Window?

Is it acceptable not to use EZ WAY?

Can individuals use the Customs-Port-Trade Single Window? What is needed?

Are EZ WAY and the Customs-Port-Trade Single Window the same thing?

What happens if the customs brokerage authorization is not completed?

What limits apply to simplified declarations of imported express cargo?

Which kind of customs brokerage authorization does HowBridge support?

What can you look up in the Single Window's Certificate-Free Inquiry Service?

What is the NHI card verification on the Customs-Port-Trade Single Window for?

How do individuals register for and log in to the Customs-Port-Trade Single Window?

A message asks me to log in to the "Customs Administration - Customs-Port-Trade Single Window website" at gov.tw/999. Is it real?

Further reading