Helpful Tax & Business Resources

Our Tax Resources page will provide you with a valuable insight you can further use as a decent starting point for your tax life in Japan. Take advantage of our expert advice to run your business successfully in Japan.

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Tax & Accounting Glossary

Tax & Accounting Glossary

Your little guide to commonly used Japanese kanji in tax & accounting area

Tax Calculator Otani Accounting Office

Tax Calculator

Free tax calculators you can use to determine your tax amount

Latest Topics Otani Accounting Office

Latest Topics

Stay up-to-date with our tax& business developments affecting foreign businesses in Japan

Helpful Guides

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Company Profile

We prepared a little guide on the history and culture of our company for those who prefer reading papers to screen

Getting Incorporated in Japan

Discover a helpful guide that will explain how you can expand your business and incorporate your company in Japan.

Year-End Tax Adjustment

This outline will help you fully understand and accurately carry out this procedure by yourself

Fill out the form below to receive a little guide on our company and its history

Getting Incorporated in Japan

Fill out the form below and receive your step-by-step instructions on the Year-End Tax Adjustment Procedure.




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  • Operating in Japan since 1983
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I ended up taking the services of the Otani Accounting Office because their website was great and they had good reviews online.

The OAO team was with me every step of the way, offering advice and tips to make my future tax returns even easier.

As a result, I got a fantastic return, claiming the amounts that I was entitled to.”

Stephen Heller, Project Manager at Mugen Creations LLC

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