ーFOUNDED BY EXPERT ZEIRISHI
BILINGUAL TAX & ACCOUNTING
SOLUTIONS IN JAPAN
We take care of your tax reporting &
daily accounting grinds so you can focus
on growing your business

The #1 TAX ACCOUNTING OFFICE Trusted by +3600 Clients

MAXIMISING YOUR POTENTIAL
SUPPORT THAT GOES FAR BEYOND THE BALANCE SHEET
We help foreign investors, small business, self-employed and expats at every stage of their integration into the Japanese community.
Our service -from company incorporation to tax, accounting and payroll support, including translation benefit and legal advice,- ensure you gain a competitive advantage to elevate your business in Japan.
We help foreign investors, small businesses, self-employed and expats at
every stage of their integration into the Japanese community.
Our service – from company incorporation to tax, accounting and payroll
support, including translation benefit and legal advice, – ensure you
gain a competitive advantage to elevate your business in Japan.

We help foreign investors, small businesses, self-employed and expats at every stage of their integration into the Japanese community.
Our service – from company incorporation to tax, accounting and payroll support, including translation benefit and legal advice, – ensure you gain a competitive advantage to elevate your business in Japan.
Multilingual Support
International multilingual experts behind your business. They are here to ensure you receive top-notch advice in a language that is convenient for you.
Experience
With over 38 years of trust with our clients from a variety of industries, our team of industry experts takes care of your financial needs so you can easily focus on growing your business.
Expertise
Japanese know their country best. We’re knowledgeable insiders with extensive experience in Japanese and international taxation and business practices.
We help foreign investors, small businesses, self-employed and expats at every stage of their integration into the Japanese community
Our service – from company incorporation to tax, accounting and payroll support, including translation benefit and legal advice, – ensure you gain a competitive advantage to elevate your business in Japan.
We help foreign investors, small businesses, self-employed and expats at every stage of their integration into the Japanese community
Our service – from company incorporation to tax, accounting and payroll support, including translation benefit and legal advice, – ensure you gain a competitive advantage to elevate your business in Japan.


Héctor García Bestseller Author, CEO of Curiosity G.K.

"They care about me and my money. Working with OAO will remove all your headaches about taxes! Less headaches, more happiness."...I realized I needed help when I was spending more and more time keeping track of expenses and dealing with Japanese bureaucracy headaches (trying to figure out how deductions work, etc.) rather than focusing on my craft, which is writing books! Having to deal directly with filling my tax return at the end of the year has always been a big stress for me. Now the process is pain free thanks to OAO! It saves me time. A lot of time! And you know what they say, time is money. They provide frictionless service and are easy to communicate with. They care about me and my money. Working with OAO will remove all your headaches about taxes! Less headaches, more happiness.
Héctor García Bestseller Author, CEO of Curiosity G.K.


I realized I needed help when I was spending more and more time keeping track of expenses and dealing with Japanese bureaucracy headaches (trying to figure out how deductions work, etc.) rather than focusing on my craft, which is writing books!
Having to deal directly with filling my tax return at the end of the year has always been a big stress for me. Now the process is pain free thanks to OAO! It saves me time. A lot of time! And you know what they say, time is money. They provide frictionless service and are easy to communicate with.
They care about me and my money. Working with OAO will remove all your headaches about taxes! Less headaches, more happiness.
Héctor García Bestseller Author, CEO of Curiosity G.K.
OUR PRICING
Tax Filing Services
For sole traders
STARTING FROM
80,000 JPY/30min
Tax Filing Services
For companies
STARTING FROM
120,000 JPY/30min
OUR PRICING
WE MAKE THE PROCESS EASY AND STREAMLINED FOR YOU

LATEST TOPICS

TAXES IN JAPAN: TOP 5 FREQUENTLY ASKED QUESTIONS
Squeeeee!! ✨
We’ve compiled TOP FAQs about Japanese taxes into an article. Hopefully, it will give you more confidence in starting your business in Japan. Enjoy!
PARTNERSHIP & SUPPORT
Our accreditations reflect our clarity and transparency








START GROWING WITH OTANI ACCOUNTING OFFICE TODAY
Schedule a friendly video call with our
consultants to get an expert overview of your situation
Schedule a friendly video call with our consultants to get an expert overview of your situation
Our CS will get back to you to clarify your situation
and suggest meeting slots

Coming to Japan as a Berlin creative wasn’t esay at all. Things have to be in line 100% of the time. Otani-San took care of these things for me. Every time I leave their office I feel very relieved and secure. My creative chaos found a safe space in their office and I am very thankful for that.
Adrian Bianco CEO/ Creative Director of ビアンコ Bianco
