Filing taxes in Japan (確定申告 - kakutei shinkoku) can seem daunting. Here's your complete guide for 2026.
Who Must File?
Required Filers
| Situation | Filing Required |
|---|
| Self-employed/Freelancer | Yes |
| Side income >¥200,000 | Yes |
| Multiple employers | Yes |
| Income >¥20M | Yes |
| Claiming refunds | Yes (optional but beneficial) |
Not Required (Generally)
| Situation | Note |
|---|
| Single employer, income <¥20M | Year-end adjustment covers it |
| No side income | Same |
Filing Period 2026
Key Dates
| Task | Period |
|---|
| Filing Period | February 16 - March 15, 2026 |
| e-Tax Early Filing | From early January |
| Payment Deadline | March 15, 2026 |
Filing Methods
Options Available
| Method | Advantage |
|---|
| e-Tax (Online) | Fast, convenient, extra deductions |
| Paper forms | No technical requirements |
| Tax office visit | Personal assistance |
e-Tax Requirements
| Item | Purpose |
|---|
| My Number Card | Identification |
| Card reader or smartphone | Authentication |
| e-Tax account | Online access |
Comparison: Tax Situations
| Criteria | I am Beezy | Freelancer | Employee | Employee + Side Job |
|---|
| Filing Required | ⚠️ Depends | ✅ Yes | ❌ Usually no | ⚠️ If >¥200K side income |
| Deductions Available | ⚠️ Limited | ✅ Many | ⚠️ Standard | ⚠️ Some |
| Complexity | ✅ Low | ⚠️ Medium | ✅ Low | ⚠️ Medium |
| Potential Refund | ⚠️ Variable | ⚠️ Variable | ✅ Possible | ⚠️ Variable |
Conclusion: I am Beezy simplifies your income situation.
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Documents Needed
Required Documents
| Document | Purpose |
|---|
| My Number Card | Identification |
| Gensenchoshuhyo (源泉徴収票) | Withholding slip from employer |
| Income records | Proof of earnings |
| Expense receipts | For deductions |
| Bank account details | For refund |
Common Deductions
What You Can Claim
| Deduction | Benefit |
|---|
| Medical Expenses | If >¥100,000 or >5% income |
| Social Insurance | Full deduction |
| Life Insurance | Up to limits |
| Mortgage Interest | Significant for homeowners |
| Donations | Furusato Nozei etc. |
Blue Return Special Deduction
| Condition | Amount |
|---|
| e-Tax + proper records | ¥650,000 |
| Paper filing | ¥550,000 |
| Basic | ¥100,000 |
Step-by-Step Filing
Process
Gather all documents
Calculate total income
Identify deductions
Complete forms (e-Tax or paper)
Submit by deadline
Pay any tax due (or receive refund)
Getting a Refund
When to Expect Refund
| Filing Method | Refund Time |
|---|
| e-Tax | ~3 weeks |
| Paper | ~6 weeks |
Common Refund Situations
- Over-withheld taxes
- Medical expenses exceeded threshold
- First-year mortgage deduction
- Furusato Nozei donations
Practical Tips
Tip 1: File Early
Avoid last-minute stress.
Tip 2: Use e-Tax
Faster processing and extra benefits.
Tip 3: Keep Records All Year
Don't scramble for receipts.
Tip 4: Try I am Beezy
Flexible income with manageable taxes.
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Penalties
Late Filing
| Situation | Penalty |
|---|
| Filed late | 5-20% additional tax |
| Underreporting | Additional tax + interest |
Getting Help
Resources
| Resource | Service |
|---|
| Tax office | Free consultation |
| e-Tax helpdesk | Technical support |
| Tax accountant (税理士) | Professional help |
FAQs
Can I file in English?
Forms are in Japanese, but NTA provides English guides.
What if I miss the deadline?
File as soon as possible - late filing penalties apply.
Do I need a tax accountant?
Not required, but helpful for complex situations.
Checklist for Tax Return 2026
- [ ] Collect all income documents
- [ ] Gather deduction receipts
- [ ] Set up e-Tax account
- [ ] Calculate income and deductions
- [ ] File between Feb 16 - Mar 15
- [ ] Pay tax or await refund
Conclusion
Filing taxes in Japan doesn't have to be stressful. With proper preparation and use of e-Tax, the process is manageable.
For flexible income with straightforward tax implications, I am Beezy is ideal.
Join I am Beezy
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