Global Tax AI Hub
AI-powered tax compliance for Chartered Accountants and CPAs across 8 countries. Upload notices, generate cited response letters, draft client advisory letters, and research tax law — all powered by Claude AI.
Tax Notice Management by Country
India
Income Tax Act 1961 · GST Act 2017
United States
Internal Revenue Code · IRS Regulations
United Kingdom
ITA 2007 · CTA 2010 · VATA 1994 · TCGA 1992
Australia
ITAA 1936/1997 · TAA 1953 · GST Act 1999
Canada
Income Tax Act 1985 · Excise Tax Act · CPP Act
Singapore
Income Tax Act Cap 134 · GST Act Cap 117A
South Africa
ITA 58/1962 · VAT Act 89/1991 · TAA 28/2011
UAE
Decree Law 47/2022 (CT) · 8/2017 (VAT) · 28/2022 (Procedures)
Tax Research AI
Claude SonnetAsk any tax question across any jurisdiction. Claude Sonnet answers with cited legislation, section numbers, and a professional disclaimer.
Key Global Tax Deadlines
India ITR filing
31 Jul
Individuals & non-audit
US Federal Tax Return
15 Apr
Form 1040 / extensions to Oct 15
UK Self Assessment
31 Jan
Online returns & tax payment
Australian Tax Return
31 Oct
Individuals; agents get Jan 31
Canadian T1 Return
30 Apr
Self-employed: Jun 15
German Einkommensteuererklärung
31 Jul
Extended to end Feb next year via advisor
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CA Letter AI
Draft professional client advisory letters in any of 9 jurisdictions — advisory, explanation, tax planning, dispute, engagement, compliance. Claude Sonnet cites the relevant legislation for each country automatically.
Open CA Letter AI →Start solving CA/CPA pain with AI
Upload your first notice in 60 seconds. No credit card required for free tier.