稅務機關

美國

IRS.gov
Internal Revenue Service

新加坡

IRAS.gov.sg
Inland Revenue Authority Of Singapore

澳洲

ATO.gov.au
Australian Taxation Office

紐西蘭

IRD.govt.nz

Inland Revenue - Te Tari Taake, New Zealand

日本

NTA.go.jp

National Tax Agency

專業組織

AICPA &CIMA
American Institute of Certified Public Accountants

Chartered Institute of Management Accountants