Denpyo Blog
Insights on expense tracking, tax tips, and small business finance.
Latest Articles
Life Insurance Premium Deduction 2026: Complete Guide to Seimei Hoken Deduction, 3 Categories & ¥120,000 Tax Savings
If you have life insurance in Japan, you may be eligible for up to ¥120,000 in annual income deductions (seimei hoken-ryō kōjo). This translates to significant savings on both income and residence taxes. Yet many people don't claim this deduction. Proper application often results in tax refunds or reductions worth tens of thousands of yen.
Home Office Deduction (家事按分) Japan 2026: Calculate Work-From-Home Expenses
Learn how to calculate Japan's home office deduction (kajianbu) for remote workers. Deduct rent, electricity, and internet using floor area or time-based allocation methods.
Receipt Storage Requirements Guide for Japan 2026
You must keep receipts for a long time even after filing your taxes in Japan — 7 years if you are a blue return filer, 5 years for white return filers. This guide covers valid documents, digital storage rules, and what to do if you lose a receipt.
Expense Categories (勘定科目) Guide for Japan Freelancers 2026
Complete guide to Japanese expense categories (kamoku) for tax filing. Learn how to classify receipts correctly for travel, supplies, entertainment & more.
2026 Housing Loan Deduction Guide | First-Year Filing for Japan Mortgages
Bought a home in Japan? Learn how to claim the housing loan deduction in your first year. Required documents, calculation methods, and e-Tax filing steps.
Tax Filing After Resignation 2026 | How Much Refund for Mid-Year Quitting? | Denpyo
Quit your job mid-year in Japan? Get tax refunds through filing. 2026 refund simulation, required documents, e-Tax filing guide. Covers retirement income tax and mid-year resignation procedures.
2026 Japan Crypto Tax Guide: Calculation Methods & Tax Rates Explained | Denpyo
Complete guide to filing cryptocurrency taxes in Japan 2026. Bitcoin, Ethereum profit calculation, tax rates up to 55%, NTA tools, and common mistakes to avoid.
2026 Tax Filing: e-Tax Home Filing Guide — File Your Japanese Taxes from Home with My Number Card + Smartphone
"Tax filing is such a hassle..." "I don't have time to go to the tax office..." "I don't understand Japanese tax forms..." If you're a foreigner living in Japan, these concerns are completely understandable.
How to File Taxes for Side Jobs Without Your Employer Knowing (Japan 2026)
"I want to start a side job, but what if my company finds out?" The main reason side jobs get discovered is residence tax. By selecting "ordinary collection" on your tax return, your company won't be notified. A thorough guide to correct filing methods for 2026.