iAP (株式会社アイエーピー) is a Tokyo-based professional team providing bilingual accounting, tax and HR/payroll outsourcing for foreign-affiliated companies and globally expanding businesses in Japan. We bridge Japanese statutory accounting and your head-office reporting — in English and Japanese.

What we do

  • Accounting & tax outsourcing — bookkeeping, cash management, monthly closing, tax filing and head-office reporting packages.
  • HR & payroll outsourcing — recruitment support, labor management, payroll, and social-insurance procedures.
  • International accounting — US GAAP / IFRS / J-GAAP conversion, international tax, and consolidated reporting.
  • Back-office & CFO services for the Japan entities of overseas companies.

Why companies choose iAP

  • Fully bilingual team — English, Japanese, French and Chinese.
  • US CPAs, tax accountants and MBAs — senior partners with controller, CFO and audit experience at companies such as Dell, Sun Microsystems and Goldman Sachs.
  • US GAAP / IFRS / J-GAAP conversion, international tax and consolidated reporting.
  • No key-person dependency — work is standardized and documented with PlayBooks and video manuals; a dedicated advisor supports you from onboarding through monthly reviews.
  • Quality & security — KPI-based reviews, INPACT Alliance membership, Privacy Mark (P-Mark) and a labor-dispatch license.
  • Flexible, on-demand — use the expertise you need, when you need it, on-site or remote.
  • Tools — QuickBooks, Xero, Yayoi, Money Forward Cloud and SAP.

To discuss accounting, tax or HR/payroll outsourcing in Japan, please contact us. We typically reply within one business day.