Japan Currency Exchange Rates for Customs Valuation April 2026

Understanding the latest currency exchange rates is crucial for foreign entrepreneurs engaged in import and export activities in Japan. The Japanese Customs (Nihon Zeikan) has released the foreign exchange rates applicable for customs valuation from April 26 to May 2, 2026. These rates impact the calculation of duties and taxes on imported goods, making it essential for business owners to stay informed and compliant with the latest regulations.

Background & Context

The Japanese Customs (Nihon Zeikan) regularly updates foreign exchange rates that are used for customs valuation purposes. These rates are essential for determining the customs duties and taxes applicable to imported goods. The current framework is governed by the Customs Act (Shunyu Kazei-ho) of 2018, which mandates that the valuation of imported goods must be based on the exchange rates published by the Customs. The rates are typically updated weekly, reflecting fluctuations in the foreign exchange market. The latest rates, effective from April 26 to May 2, 2026, will be published on the official Customs website. This ensures that businesses can accurately calculate their import costs and comply with Japanese regulations.

How This Affects Your Business in Japan

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

1. Foreign Residents Already Operating a Business in Japan
For those already importing goods, it is critical to check the latest exchange rates published by the Japanese Customs. Failure to use the correct rates can result in miscalculated duties, leading to potential fines or delays in customs clearance. Ensure you have access to the Customs website for the most recent updates.

2. Foreign Nationals Planning to Establish a New Company
If you are considering starting a business that involves importing goods, familiarize yourself with the customs valuation process and the importance of accurate currency conversion. You will need to prepare for potential fluctuations in exchange rates when budgeting for your imports.

3. Foreign Investors Who Are NOT Residents of Japan
For investors looking to engage in import activities, understanding the customs valuation process is essential. You may need to collaborate with local partners or agents who are familiar with Japanese customs regulations to navigate the complexities of currency exchange and duties. Inaction could lead to unexpected costs or legal issues.

Step-by-Step: What You Need to Do

Step 1: Check the Latest Exchange Rates
Visit the Japanese Customs website for the most recent rates. English support is limited, so consider using translation tools.
Office: Japanese Customs (English Support: Limited)
Cost: Free (¥0)
Time: Immediate
Pitfall: Not checking regularly

Step 2: Calculate Duties Based on the Latest Rates
Use the exchange rates to determine the customs duties for your imported goods.
Office: Self-calculation
Cost: Free (¥0)
Time: Few hours
Pitfall: Incorrect calculations

Step 3: Prepare Necessary Documentation
Ensure all import documentation reflects the correct exchange rates.
Office: Self-preparation
Cost: Free (¥0)
Time: 1-2 days
Pitfall: Missing documents

Step 4: Submit Customs Declaration
File your customs declaration with the correct valuation.
Office: Customs Office (English Support: Yes)
Cost: ¥5,000 (~$35 USD)
Time: 1 day
Pitfall: Incorrect filing

Step 5: Monitor Exchange Rates Regularly
Stay updated on currency fluctuations to adjust your pricing and budgeting accordingly.
Office: Self-monitoring
Cost: Free (¥0)
Time: Ongoing
Pitfall: Ignoring updates

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	SGD 1	HKD 1	KRW 1
Annual Filing Cost	¥60,000	SGD 300	HKD 2,000	KRW 100,000
Visa Processing Time	1 month	2 weeks	3 weeks	1 month

What to Expect Next

Looking ahead, it is essential to monitor any potential changes in the Customs Act or related regulations that may impact currency exchange practices. Watch for announcements from the Japanese Customs (Nihon Zeikan) regarding any upcoming adjustments to the customs valuation process or exchange rate publication frequency. These developments could significantly affect import costs and business planning for foreign entrepreneurs 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.