Submit

Handles the final submission phase of Japanese tax returns, walking you through verification checklists for income tax and consumption tax filings before you hit submit. It validates your taxpayer profile, flags common mistakes like missing MyNumber entries or miscalculated deductions, then compares e-Tax, mail, and in-person submission methods with concrete tradeoffs. The e-Tax path integrates with Claude in Chrome to auto-fill the official tax portal forms while you review each screen. Includes deadline tracking, payment method guidance, and post-submission tasks like document retention periods. Most useful once you've finished calculations and need systematic verification before filing, especially if you're juggling blue-form accounting or consumption tax obligations.