Taiwan Customs Ten-Day Exchange Rates: This Period’s CNY Declaration Rate and How to Convert the Customs Value
The customs ten-day exchange rate is the foreign-currency rate for customs declarations that the Customs Administration, Ministry of Finance (財政部關務署) announces once for each ten-day period of the month (1st–10th, 11th–20th, 21st–end) under Article 39 of the Customs Act; imports use the Bank of Taiwan (臺灣銀行) selling rate. For this period (10/2026 (1st–10th)，10/1–10/10) the CNY import declaration rate is 4.758 and the USD rate is 31.83.
What counts is which ten-day period your customs declaration date falls in, not the day you ordered or paid. The authorities announce the next period’s rates on the 5th, 15th and 25th of each month (moved earlier if that day is a holiday).
Text last updated: 2026-09-24 | Exchange rates are read automatically from the Customs Administration announcements; currently shown up to 10/2026 (1st–10th) (effective 2026-10-01)
This period’s customs exchange rates at a glance
Below are the import declaration exchange rates applicable to 10/2026 (1st–10th)，10/1–10/10 (Bank of Taiwan selling rate, in New Taiwan dollars per 1 unit of foreign currency). Source: GC331 announcement by the Customs Administration, Ministry of Finance.
| Currency | Import declaration rate | Change vs. previous period |
|---|---|---|
| Chinese yuan CNY | 4.758 | ▼ 0.01 |
| US dollar USD | 31.83 | ▼ 0.07 |
| Hong Kong dollar HKD | 4.082 | ▼ 0.008 |
| Japanese yen JPY | 0.2029 | ▼ 0.0048 |
Source: “Foreign Currency Exchange Rates for Customs Declarations (per ten-day period)” by the Customs Administration, Ministry of Finance (Customs-Port-Trade Single Window GC331), synced automatically by the HowBridge system. For the other 24 foreign currencies, check GC331 directly.
What is the customs ten-day exchange rate? Legal basis and how it is compiled
Taiwan’s customs splits each month into three ten-day periods (三旬): the first (1st–10th), the second (11th–20th) and the third (21st to month-end). The customs declaration exchange rate changes once per period, three times a month, which is why it is commonly called the “customs ten-day exchange rate”. Its official name is “Foreign Currency Exchange Rates Applicable to Customs Declarations per Ten-Day Period” (每旬報關適用外幣匯率).
“For imported goods subject to ad valorem duty, the foreign-currency price shall be converted into New Taiwan dollars; the exchange rate for the conversion shall be announced periodically by the Customs Administration, Ministry of Finance, with reference to spot rates in the foreign exchange market.” In other words, the goods you pay for in CNY on Taobao or 1688 must first be converted into New Taiwan dollars at this announced rate at declaration, before the customs value and the tax amount can be calculated.
“The ten-day customs declaration rate uses the Bank of Taiwan’s posted rates on the middle day of the ten-day period before the declaration (the 5th, 15th and 25th of each month, moved earlier if that day is a holiday). Currencies not posted are converted using the New York closing prices of foreign currencies against the US dollar published in the Economic Daily News on the middle day of the preceding ten-day period.” Each period currently lists 28 foreign currencies (29 currency codes including the New Taiwan dollar); CNY, USD, HKD and JPY are all included.
When rates are announced and take effect: the ten-day announcement calendar
A 2019 Customs Administration press release explains that, in practice, the rates applicable to the next ten-day period are announced regularly on the 5th, 15th and 25th of each month (moved earlier if that day is a holiday). For example, on April 15 it announces the rates applicable from April 21 to the end of April. As a calendar:
| Applicable period | Applicable dates | Pricing date (middle day of the previous period) | Announcement |
|---|---|---|---|
| First ten days | 1st–10th of each month | 25th of the previous month | Around the 25th of the previous month |
| Second ten days | 11th–20th of each month | 5th of the same month | Around the 5th of the same month |
| Third ten days | 21st–end of each month | 15th of the same month | Around the 15th of the same month |
Both the pricing date and the announcement are moved earlier if they fall on a holiday. Currencies posted by the Bank of Taiwan use that day’s closing spot rate; currencies not posted use the New York closing price against the US dollar published in the Economic Daily News, converted with the Bank of Taiwan’s closing USD spot rate. To be notified each period, you can subscribe to the Customs Administration website’s e-newsletter; for questions about the announced rates, call the Customs Administration enquiry line 02-2550-5500 ext. 2730 (as stated in the 2019 press release).
Imports use the selling rate, exports the buying rate: don’t mix them up
The Customs Administration FAQ is explicit: “The Bank of Taiwan ‘selling rate’ is the import declaration rate, and the Bank of Taiwan ‘buying rate’ is the export declaration rate.” Shopping online in mainland China and shipping to Taiwan via consolidation is an import, so look at the selling column.
Take the third ten-day period of September 2026 (9/21–9/30): GC331 lists CNY buying 4.718 and selling 4.768, so the import declaration rate is 4.768. In the same period USD was buying 31.80 and selling 31.90, so imports use 31.90. (Latest GC331 period checked on 2026-09-24.)
Which period applies? The declaration date, not the order date
The Customs Administration explains that the declaration rate “uses the Bank of Taiwan posted rate on the middle day of the ten-day period before the declaration”, and notes that “importers and exporters can select a currency in the system to look up the rate applicable to different declaration dates”. In other words, the rate is determined by which ten-day period the goods’ declaration date falls in; the date you ordered or paid on Taobao does not affect which rate customs uses.
- Consolidation widens the time gap: goods are first shipped to the Shenzhen consolidation warehouse, combined into one box, then shipped to Taiwan for declaration, so the order date and the declaration date are often in different ten-day periods. Crossing into the next period is normal.
- Crossing periods is not necessarily more expensive: the rate can go up or down, and whether the next period is better or worse is only known once it is officially announced; the “at a glance” section of this page shows both periods once the next one is announced.
- A wrong rate can be corrected: Article 54 of the Enforcement Rules of the Customs Act lists an obviously wrong “exchange rate” causing underpayment, and a wrong exchange rate causing overpayment, among the cases of short levy and over-levy; under Article 65 of the Customs Act, customs will notify you to pay the shortfall or will refund the excess, and the taxpayer can also pay the shortfall or apply for a refund on their own initiative, within one year from the day after the tax was paid, with daily interest added.
How to convert CNY into the customs value: an NT$2,000 threshold example
Under Article 29 of the Customs Act, the customs value is based on the transaction value, and “freight, loading/unloading and handling charges to the port of importation” and “insurance” not included in the price actually paid must be added to the customs value. For online shopping with consolidation, this can be simplified as:
Ministry of Finance announcement: if the customs value of one import consignment is NT$2,000 or less, customs duty and the business tax and commodity tax collected by customs are exempted (not applicable to tobacco and alcohol, or to agricultural products under tariff-rate quotas). Taipei Customs also explains that if the purchase price does not exceed NT$2,000 but exceeds it once freight or insurance is added, tax is still payable.
Assume freight to Taiwan of NT$150 and insurance of 0 (the freight is a hypothetical figure for illustration and is not a HowBridge quote), using the actual announced rates for the second and third ten-day periods of September 2026:
| Declared in | CNY import rate | Goods converted | Customs value with assumed NT$150 freight | Result |
|---|---|---|---|---|
| Second ten days of September 2026 (9/11–9/20) | 4.739 | 390 × 4.739 = NT$1,848.21 | NT$1,998.21 | ≤ NT$2,000, qualifies for the low-value exemption |
| Third ten days of September 2026 (9/21–9/30) | 4.768 | 390 × 4.768 = NT$1,859.52 | NT$2,009.52 | > NT$2,000, taxable |
The two rates differ by only 0.029 and the goods value by only NT$11.31, yet it is just enough to cross the NT$2,000 threshold. If your goods are close to the threshold, include both the exchange rate and the freight in your calculation instead of looking only at the CNY price on the product page.
CNY and USD customs exchange rates by ten-day period
The official GC331 shows only one period at a time; the table below lines up the import declaration rates for the last 18 periods for easy comparison (in New Taiwan dollars per 1 unit of foreign currency).
| Period | Applicable dates | CNY | Change vs. previous period | USD |
|---|---|---|---|---|
| 10/2026 (1st–10th)Current | 10/1–10/10 | 4.758 | ▼ 0.01 | 31.83 |
| 9/2026 (21st–end) | 9/21–9/30 | 4.768 | ▲ 0.029 | 31.9 |
| 9/2026 (11th–20th) | 9/11–9/20 | 4.739 | ▼ 0.026 | 31.68 |
| 9/2026 (1st–10th) | 9/1–9/10 | 4.765 | ▼ 0.007 | 31.92 |
| 8/2026 (21st–end) | 8/21–8/31 | 4.772 | ▼ 0.039 | 32.065 |
| 8/2026 (11th–20th) | 8/11–8/20 | 4.811 | ▲ 0.008 | 32.345 |
| 8/2026 (1st–10th) | 8/1–8/10 | 4.803 | ▲ 0.022 | 32.43 |
| 7/2026 (21st–end) | 7/21–7/31 | 4.781 | ▲ 0.047 | 32.265 |
| 7/2026 (11th–20th) | 7/11–7/20 | 4.734 | ▲ 0.028 | 31.995 |
| 7/2026 (1st–10th) | 7/1–7/10 | 4.706 | ▲ 0.011 | 31.9 |
| 6/2026 (21st–end) | 6/21–6/30 | 4.695 | ▲ 0.023 | 31.61 |
| 6/2026 (11th–20th) | 6/11–6/20 | 4.672 | ▲ 0.01 | 31.525 |
| 6/2026 (1st–10th) | 6/1–6/10 | 4.662 | ▲ 0.003 | 31.52 |
| 5/2026 (21st–end) | 5/21–5/31 | 4.659 | ▲ 0.007 | 31.59 |
| 5/2026 (11th–20th) | 5/11–5/20 | 4.652 | ▲ 0.018 | 31.665 |
| 5/2026 (1st–10th) | 5/1–5/10 | 4.634 | ▼ 0.033 | 31.555 |
| 4/2026 (21st–end) | 4/21–4/30 | 4.667 | ▲ 0.004 | 31.695 |
| 4/2026 (11th–20th) | 4/11–4/20 | 4.663 | ▲ 0.013 | 32.03 |
So far in 2026, the CNY import declaration rate has ranged from a low of 4.518 (1/2026 (1st–10th)) to a high of 4.811 (8/2026 (11th–20th)), a spread of 6.49%. For goods worth RMB 1,000, that is a difference of about NT$293 in the customs value.
Source: selling rate (applicable to imports) in the Customs Administration, Ministry of Finance GC331 “Foreign Currency Exchange Rates for Customs Declarations (per ten-day period)”, synced automatically by the HowBridge system and read live by this page; if it differs from the official announcement, the Customs Administration announcement prevails.
How the HowBridge calculator applies the latest period
HowBridge automatically syncs the import declaration rate (selling) from the Customs Administration’s GC331 every ten-day period and keeps the history period by period without overwriting old data. The trend table on this page and the calculator read the same data.
1Enter the CNY price and item name
In the import duty calculator, enter the CNY price, quantity and item name (or CCC tariff code). If you don’t know the tariff code, look it up first with tariff search.
2The latest period’s rate is filled in automatically
The calculator uses the import declaration rate of “the latest period whose effective date is not later than today” to convert the goods price and insurance into New Taiwan dollars. Even if the next period has already been announced, it is only applied from its effective date, never earlier.
3Add freight to get the customs value and tax amount
The customs value includes freight to Taiwan; customs duty, business tax and commodity tax are then calculated by tax rate, and the calculator checks whether you are within the NT$2,000 exemption threshold. The info bar at the top of the calculator page shows the CNY declaration reference rate currently applied and its effective date.
Open data: ten-day declaration rates and import/export trade statistics
The ten-day exchange rate governs “how your order is converted”; import/export trade statistics show “the scale of Taiwan’s imports and exports as a whole”. Both are public government data from the Customs Administration, Ministry of Finance, and are free to use.
| How to get it | Content and format |
|---|---|
| Government Open Data Platform (政府資料開放平臺) dataset 6708 “Ten-day customs declaration exchange rates” | Provider: Customs Administration, Ministry of Finance; current period only; JSON; fields code, buyValue, sellValue; updated every 10 days; Open Government Data License, version 1.0; free. |
GC331 latest period JSONhttps://portal.sw.nat.gov.tw/APGQ/GC331!downLoad?formBean.downLoadFile=CURRENT_JSON | Fields start, end (YYYYMMDD) and items (code, buyValue buying, sellValue selling). For imports, use sellValue. |
GC331 latest period TXT…downLoadFile=CURRENT_TXT | Big5 encoding, tab-separated; fields are currency, year (ROC calendar), month, ten-day period, buying, selling. |
GC331 historical TXT…downLoadFile=HISTORY_TXT | Fixed-width text file; CNY goes back to 2013 (ROC year 102), about 35,000 lines. |
HowBridge’s own member API and MCP interface are documented on the developer platform.
Dataset 6053 “Customs import and export trade statistics” provides statistics on goods cleared through customs for import and export, in CSV format and updated monthly; the source file is https://opendata.customs.gov.tw/data/6053/csv.csv. Its fields are, in order: year (ROC calendar), month, total exports, exports, re-exports, total imports, imports, re-imports, trade balance and remarks, all in thousands of New Taiwan dollars. For breakdowns by commodity or country, use the Customs-Port-Trade Single Window customs import/export statistics query (GA30).
| Item | 7/2026 (ROC year 115, month 7) |
|---|---|
| Total imports | About NT$1.86 trillion |
| Total exports | About NT$2.41 trillion |
| Trade balance | About NT$0.55 trillion |
Source: Customs Administration, Ministry of Finance dataset 6053, synced monthly by the HowBridge system and then read here; the Customs Administration CSV may already have been updated to the following month. Only national totals are shown here; they do not represent the share of any single business or of consolidation shipping.
For how consolidated parcels actually clear customs, see Taiwan cross-border consolidation customs clearance data and red-line report.
- Customs Act (關稅法) (Laws & Regulations Database of the ROC, amended 2022-05-11): Article 29 (freight and insurance included in the customs value), Article 39 (the exchange rate for converting foreign currency is announced periodically by the Customs Administration), Article 49, Paragraph 2 (duty exemption at or below the customs value limit per consignment), Article 65 (short levy and over-levy paid or refunded within one year)
- Enforcement Rules of the Customs Act (關稅法施行細則) Article 54 (exchange rate errors treated as short levy or over-levy)
- Ministry of Finance announcement “Duty-free limit under Article 49, Paragraph 2 of the Customs Act” (2017-09-07, No. 1061018778)
- Customs Administration FAQ “How are import and export declaration exchange rates determined and where can they be looked up?”
- Customs Administration press release “New declaration exchange rate lookup system now available to the public” (2019-04-17)
- Taipei Customs (臺北關) FAQ “Why is tax still payable on goods sent by express whose price converted into New Taiwan dollars does not exceed 2,000?” (2023-09-14)
- Customs-Port-Trade Single Window (關港貿單一窗口) GC331 Foreign Currency Exchange Rates for Customs Declarations (per ten-day period)
- Government Open Data Platform dataset 6708 Ten-day customs declaration exchange rates, dataset 6053 Customs import and export trade statistics
Some GC331 entry points only support browser use. If automated retrieval fails, use the JSON/TXT download URLs above or dataset 6708 instead.
- Import duty calculator: estimate customs duty and business tax at this period’s rate
- Tariff search: look up the 11-digit CCC code and tax rate by item name
- Taiwan import tariff schedule and tariff lookup guide
- Taiwan cross-border consolidation customs clearance data and red-line report
- How long does consolidation customs clearance take? Declaration timeline
- HowBridge developer platform: member API and MCP
FAQ
The exchange rates on this page are taken from the announcements of the Customs Administration, Ministry of Finance and read automatically by the system; the legal provisions were checked on 2026-09-24. The freight in the conversion example is a hypothetical figure and is not a HowBridge quote; the actual customs value, tax rate and tax amount are as assessed by customs.
Use this period’s rate to check first whether you will owe tax
Enter the CNY price and item name; the latest ten-day customs exchange rate is applied automatically to calculate the customs value, customs duty and business tax.
Open the import duty calculator Look up the tariff code