Japan's invoice system (インボイス制度) has been a headache for freelancers since its launch. But it came with a silver lining: the 20% Special Exception (2-wari tokurei)—a rule letting registered freelancers pay only 20% of their sales-side consumption tax.
That exception ends on September 30, 2026.
If you're a freelance IT professional registered under the invoice system and haven't taken action yet, here's what you need to know.
The Transition: 20% → 30% → Full Rate
What's Happening
The Japanese government created temporary exceptions to cushion the impact of the invoice system on small businesses and freelancers:
- 20% Exception (2-wari tokurei): Pay only 20% of consumption tax collected from clients. Ends September 30, 2026.
- 30% Exception (3-wari tokurei): Pay 30% of consumption tax collected. Runs October 2026 – September 2028. Individual sole proprietors only—corporations are excluded.
- Post-2028: Back to standard calculations—either simplified (簡易課税) or actual cost method (本則課税).
Real Numbers: Tax Simulation for an IT Freelancer
Scenario: ¥5M annual revenue (¥5.5M including 10% consumption tax), IT services (5th-category business under simplified taxation)
| Method | Calculation | Annual Tax Payment | Effective Rate |
|---|---|---|---|
| 20% Exception (until Sept 2026) | ¥500K × 20% | ¥100,000 | ~1.8% of revenue |
| 30% Exception (Oct 2026–Sept 2028) | ¥500K × 30% | ¥150,000 | ~2.7% of revenue |
| Simplified Taxation, Cat. 5 (post-2028) | ¥500K × (1 − 50%) | ¥250,000 | ~4.5% of revenue |
| Actual cost method | Sales tax − input tax | Depends on expenses | Variable |
After the exceptions fully expire in October 2028, annual tax liability could increase by ¥150,000 or more compared to today.
What Is Simplified Taxation (簡易課税)?
The Simplified Taxation System (簡易課税制度) lets you calculate consumption tax using a predetermined "deemed purchase rate" by industry, instead of tracking every individual deductible expense.
For IT services and software (5th-category businesses), the deemed purchase rate is 50%—meaning you pay consumption tax on only half your sales revenue.
To use it post-2028, you must file a Simplified Taxation Election Form (消費税簡易課税制度選択届出書) with your tax office.
Why You Should File It Right Now
Reason 1: Zero downside during the exception periods
Filing the form doesn't force you to use simplified taxation immediately. During 2026–2028, if the 20%/30% exception is more advantageous (it almost always is), you can still apply it at tax filing time. The form just ensures you have the option post-2028.
Reason 2: Prevents an accidental miss
The deadline to elect simplified taxation for fiscal year 2029+ is December 31, 2028. Life gets busy. Filing now eliminates the risk of a costly oversight during a hectic end-of-year period.
Reason 3: Almost always better than the actual cost method for IT freelancers
IT work is primarily labor—there aren't many deductible consumption tax expenses. Tracking every input tax credit under the actual cost method creates administrative burden with minimal benefit. Simplified taxation is cleaner and typically cheaper.
Exception: actual cost method might win if:
- Your deductible expense ratio exceeds 80%
- You plan a large capital purchase (equipment, software licenses) and could receive a refund
Action Checklist
This Week
☐ Download "消費税簡易課税制度選択届出書" from the NTA website (nta.go.jp)
☐ Submit to your local tax office (mail, in-person, or via e-Tax)
→ Using the "next fiscal year filing" exception, submission now
can apply retroactively to fiscal year 2026
By September 2026
☐ File 2025 final tax return using the 20% exception (last opportunity)
☐ Confirm your consumption tax strategy for Oct 2026 onward
2027–2028
☐ Apply 30% exception on annual filings (sole proprietors only)
☐ Verify simplified taxation registration status before October 2028
For freee Users
If you use freee accounting software:
- Go to Settings → Business Settings → Consumption Tax Settings
- Change method to Simplified Taxation (簡易課税)
- Set business category to 5th Category (Service Industry)
Note: Once you elect simplified taxation, you cannot revert to the actual cost method for 2 years. However, the 20%/30% exceptions override this during the transition period—so the practical impact is minimal.
A Note on Corporations
The 30% exception applies only to sole proprietors. If your business is (or is planning to incorporate into) a corporation (法人), the transition math is different:
- Corporations skip the 30% exception entirely
- Options post-2026: actual cost method or simplified taxation (5th category, 50% deemed rate)
- Factor this into your incorporation timing decisions
Bottom Line
Filing the Simplified Taxation form costs nothing and has essentially zero downside before 2028. It protects you from a potential ¥150,000+ annual tax increase and removes one item from your future to-do list.
The September 2026 deadline for the 20% exception is six months away. Don't wait until December's chaos. Print the form, fill it out, send it in—done.
Japan's consumption tax system rewards those who understand the rules. This is a straightforward win. Take it.
Sources: Freelance Association Japan (Dec 2025) / Kiyosumi Tax Office (Jan 2026) / National Tax Agency Japan
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