Koji Ata, CPA, EA - Tokyo Japan Tax Preparer


Koji Ata, CPA, EA

Sole Practitioner
Ata Tax Accountant Office, For Jpn & Us Tax
Bisuheim Ikebukuro 706, 13-9, Minami-Ikebukuro
Tokyo 17100


For tax preparation in Tokyo Japan, you can count on Koji Ata, CPA, EA at Ata Tax Accountant Office, For Jpn & Us Tax. Koji Ata, CPA, EA assists taxpayers and small businesses with taxes in Tokyo Japan and the surrounding communities. Whether you are an individual or a local business in or around Tokyo Japan, Koji Ata, CPA, EA has years of valuable experience as an IRS registered tax preparer. Contact Koji Ata, CPA, EA, tax filing specialist in Tokyo Japan, for help with your taxes.

Increasing number of the foreign companies and the foreigner in Japan is not fully supported by the accounting firms in Japan probably not only because the limited budget does not meet the price of the big accounting firms but also because some accounting firms are not yet well experienced in the international taxation accompanying with the foreign companies and the foreigner.
During my career at a big international accounting firm, I often heard, but I always ignored, that small/medium size foreign companies and foreign individuals are seeking for the tax/.accounting service in a reasonable price range. After years’ career at the international accounting firm, I established Ata tax accountant office to provide the quality service of the accounting and tax especially for the foreigner and the foreign companies in the price more acceptable.

Professional History:
Opened Ata Tax Accountant Office at Tokyo, 2005 -
PricewaterhouseCoopers, International Tax, Tokyo, Financial Services, 2003 - 2004
PricewaterhouseCoopers, International Tax, London, Financial Services, 2001 - 2002
PricewaterhouseCoopers, International Tax, Tokyo, Financial Services, 1994 - 2001
Deutsche Bank AG, Tokyo Branch, Credit Dept. 1989 - 1994

Professional Memberships

US CPA: Washington State Board of Accountancy (License number 33303)
Japan certified Tax Accountant: Tokyo Certified Public Tax Accountants Association

Professional Titles


Education & Degrees

MA of Economics

Looking to find the best rated tax preparer in Tokyo Japan?

Koji Ata, CPA, EA is a local tax preparer and Sole Practitioner at Ata Tax Accountant Office, For Jpn & Us Tax located in Tokyo Japan. As one of the best tax preparers within the Tokyo Japan area, Koji Ata, CPA, EA provides personalized tax preparation services including Expatriate Returns, Foreign National Tax, Incorporation & Dissolution, Individual Taxation, Nonresident Alien Returns, prepares simple and complicated form 1040, can respond to any IRS notices you may receive and will answer your tax questions. Koji Ata, CPA, EA has individual and business tax clients from diversified industries and professions including Banks, Imports/Exports, Lawyers, Real Estate, Retail, located in the Tokyo Japan area. Koji Ata, CPA, EA has individual and business tax clients located in communities throughout Japan including Tokyo.

Services Provided

  • Expatriate Returns
  • Foreign National Tax
  • Incorporation & Dissolution
  • Individual Taxation
  • Nonresident Alien Returns

Industries Serviced

  • Banks
  • Imports/Exports
  • Lawyers
  • Real Estate
  • Retail

Languages Serviced

  • English
  • Japanese

Cities Serviced

  • Tokyo

Gold Seal of PTIN Registry

Need Help Finding a Tax Preparer in Tokyo Japan?

Our free service can help you find a qualified tax professional.