Japan’s Foreign Exchange Rates for Customs Valuation: April 2026

Understanding Japan’s foreign exchange rates is crucial for foreign entrepreneurs involved in import and export activities. The latest rates, effective from April 26 to May 2, 2026, will impact how businesses calculate customs duties and taxes. Staying informed about these rates can help ensure compliance and optimize financial planning for your operations in Japan.

Background & Context

In Japan, customs valuation is a critical aspect of import and export trade, governed by the Customs Act (Zeikan-ho) of 2018. This law outlines how the value of goods should be determined for the purpose of calculating customs duties. The Ministry of Finance (Zaimu-shō) is responsible for issuing foreign exchange rates that are used to convert foreign currencies into Japanese yen for customs purposes. These rates are updated regularly, and the latest rates are applicable for a specific period, in this case, from April 26 to May 2, 2026. The foreign exchange rates are essential for businesses to accurately assess the value of their imported goods, which directly affects the amount of customs duty payable. Failure to apply the correct exchange rates can lead to compliance issues and financial penalties.

How This Affects Your Business in Japan

Item	Cost (JPY)	Cost (USD approx)	Notes
Company Registration	¥150,000	~$1,000	Standard registration fee
Notary Fee	¥50,000	~$350	For document notarization
Visa Application	¥4,000	~$30	For Business Manager visa

1. Foreign Residents Already Operating a Business in Japan
If you are currently importing goods, it is essential to review the latest foreign exchange rates to ensure that you are calculating customs duties correctly. You should check the Ministry of Finance’s website for the updated rates and apply them to your customs declarations. Missing the correct rates may result in overpayment or underpayment of duties, leading to potential audits or penalties.

2. Foreign Nationals Planning to Establish a New Company
For those looking to start a business in Japan, understanding the customs valuation process is vital. You will need to familiarize yourself with the foreign exchange rates that will apply to your imports. This knowledge will help you in budgeting and financial planning for your new venture. Ensure you have access to the latest rates before making any import decisions.

3. Foreign Investors Who Are NOT Residents of Japan
If you are considering investing in Japanese companies that engage in import and export, understanding the customs valuation and foreign exchange rates can provide insights into the financial health of these businesses. You may want to consult with local experts or legal advisors to ensure that your investments are sound and compliant with Japanese regulations. Not being aware of these rates could lead to miscalculations in potential returns on investment.

Step-by-Step: What You Need to Do

Step 1: Visit the Ministry of Finance Website
Go to the official website to access the latest foreign exchange rates. English support is available on the site.
Office: Ministry of Finance (English Support: Yes)
Cost: Free (¥0)
Time: 10 minutes
Pitfall: Ensure you access the correct section for exchange rates.

Step 2: Calculate the Customs Value
Use the latest exchange rates to convert the value of your imported goods into yen. Ensure you have all necessary documentation, such as invoices.
Office: Customs and Tariff Bureau (English Support: Yes)
Cost: Free (¥0)
Time: 1 hour
Pitfall: Double-check calculations to avoid errors.

Step 3: Prepare Customs Declaration
Fill out the customs declaration form with the correct values. You can contact the Customs and Tariff Bureau for assistance.
Office: Customs and Tariff Bureau (English Support: Yes)
Cost: Free (¥0)
Time: 2 hours
Pitfall: Ensure all fields are completed accurately.

Step 4: Submit Customs Declaration
Submit your declaration to the Customs and Tariff Bureau. Ensure all documents are complete to avoid delays.
Office: Customs and Tariff Bureau (English Support: Yes)
Cost: Free (¥0)
Time: 30 minutes
Pitfall: Confirm receipt of submission.

Step 5: Pay Customs Duties
Calculate and pay the required customs duties based on the declared value. Payment can be made online or at designated banks.
Office: Customs and Tariff Bureau (English Support: Yes)
Cost: Varies based on duties owed
Time: 1 hour
Pitfall: Keep proof of payment for records.

Key Contacts
www.jetro.go.jp/en/
www.moj.go.jp/isa/
www.customs.go.jp/english/
www.nta.go.jp/english/

Expert Analysis: Japan vs. Regional Competitors

Metric	Japan	Singapore	Hong Kong	South Korea
Incorporation Time	14 days	3 days	5 days	10 days
Minimum Capital Requirement	¥1	S$1	HK$1	₩100
Annual Filing Cost	¥60,000	S$300	HK$2,000	₩50,000
Corporate Tax Rate	23.2%	17%	16.5%	22%

What to Expect Next

Looking ahead, businesses should monitor any changes in the Customs Act and foreign exchange regulations that may arise. The Ministry of Finance is expected to continue updating foreign exchange rates regularly, and any significant changes in global economic conditions could influence these rates. Entrepreneurs should keep an eye on announcements from the Ministry of Finance and the Customs and Tariff Bureau for updates that could affect their operations in Japan.

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Sources & References

This article is based on the following source and enhanced with professional analysis for foreign business owners.
Source: 価格の換算に用いる外国為替相場（令和８年４月26日～令和８年５月２日）

⚠️ This article is for informational purposes only and does not constitute legal advice. Please consult a qualified Japanese attorney (bengoshi) or judicial scrivener (shiho shoshi) for advice specific to your situation.