Post Office Announces Major Change to 'One Key Service' Starting Tomorrow! Affects All of Taiwan – Latest Rules and Fees Explained

Chunghwa Post has issued a new official announcement stating that the U.S. Customs and Border Protection (CBP) will officially implement a revised international mail import procedure starting tomorrow (24th) to strengthen import controls, prevent undervaluation of goods, tariff evasion, and illegal imports. Simultaneously, the tariff calculation method and customs clearance process will be adjusted.

According to Chunghwa Post statistics, mail shipments of goods from Taiwan to the United States account for approximately 15% of total outbound commercial mail annually. With the new system taking effect, significant changes will occur in customs thresholds, fee calculations, and declaration procedures. Senders who provide inaccurate declarations may face risks such as additional taxation or package returns.

Three major changes to postal shipping thresholds and fees: prepayment of duties for items under $2,500 and a $2 handling fee added per item.

The new U.S. Customs regulations focus on three main areas: 'duty threshold,' 'tariff calculation method,' and 'new fixed handling fee.'

1. Duty threshold significantly raised to $2,500

Old rule: An $800 threshold (approximately NT$26,000) was used to determine whether the sender or recipient must pay duties.

New rule: For mail items with a declared value of $2,500 (approximately NT$81,300) or less sent to the U.S., the sender must prepay all applicable taxes at the time of mailing. Only after payment is completed can customs clearance and delivery proceed. For goods valued above $2,500, the U.S. recipient must continue to follow local customs regulations for formal import declarations.

2. Tariff calculation no longer fixed at 10% – now based on 10-digit U.S. HTSUS codes

Previously, tariffs were often simply calculated at 10% of the item’s value. Starting July 24, 2026, a fixed rate will no longer be used. The new system will precisely calculate tariffs based on the 10-digit U.S. Harmonized Tariff Schedule (HTSUS) code, country of origin, declared value, quantity, and weight, applying the U.S. Customs’ applicable tax rate.

Chunghwa Post adds: The new system does not necessarily mean overall shipping costs will increase. Actual tax amounts will vary depending on the product type, applicable tariff rate, and country of origin.

3. A $2 import processing fee added per item, regardless of whether duties apply

To comply with the new U.S. Customs procedures, Chunghwa Post’s partner customs brokers will assist with tax payment on behalf of senders. Going forward, every commercial mail item sent to the U.S. must pay an additional $2 (approximately NT$65) import processing fee at the time of mailing, regardless of whether duties are ultimately assessed.

Important for senders! EZPost waybill filling and payment guidelines

To ensure smooth customs clearance, senders using Chunghwa Post’s EZPost system to create waybills must strictly follow these rules:

Accurate item description: The waybill must clearly state the English product name, country of origin, declared value, quantity, and weight of the contents.

10-digit U.S. HTSUS code: Senders may enter this code themselves. If not provided, the EZPost system will automatically determine and display it based on the item details entered.

Tax and fee calculation and payment: The system will automatically calculate and display the required tax amount (in USD), converted into New Taiwan Dollars (NTD) using the previous business day’s Taiwan Bank spot selling exchange rate. When submitting the package at a post office counter, senders must pay the tax amount together with the postage.

Senders bear full responsibility for inaccurate declarations! Customs reserves final review authority

Chunghwa Post emphasizes that all U.S. import duties are subject to the 'final review result by U.S. Customs.' If the sender’s declaration is incomplete, incorrect, or inconsistent with the actual contents, it may result in high-value tax assessments, severe customs delays, package returns, or confiscation. All resulting losses and legal liabilities must be borne entirely by the sender. Please double-check all declaration information before mailing.