Japan's Invoice System, which took effect in October 2023, has had a significant impact on affiliate marketers. More and more people are worried: "Am I fine staying tax-exempt?" or "Will becoming a taxable business cost me money?" This article organizes the relationship between affiliate income and the Invoice System, and explains the best choice for each annual income range. Note that you should always consult a tax accountant for your final tax decisions.
This article is informational and educational content. It is not a guarantee of earnings such as "guaranteed income" or "definitely ¥X per month." Results vary by individual.
- The relationship between the Invoice System and affiliate income (effects on counterparties and taxes)
- The decision criteria for tax-exempt vs. taxable business (by annual income range)
- The 2026 transitional measure and how to prepare for full enforcement three years out
The bottom line: frequently asked questions
- Q: Does the Invoice System affect affiliate marketers?
- A: Yes. The affiliate commission you receive includes consumption tax, and how an ASP/platform treats its purchase tax credit depends on whether you can issue a "qualified invoice." If you remain a tax-exempt business, the ASP absorbs the consumption-tax loss, which creates a risk of reduced commissions or terminated contracts.
- Q: At what annual affiliate income should I consider becoming a taxable business?
- A: Above ¥10 million in annual income you automatically become a taxable business, but in the ¥5 million–¥10 million range you decide based on whether your main ASPs require taxable-business status and how it balances against expenses. Below ¥1 million, staying tax-exempt is the norm.
- Q: Is invoice registration free?
- A: Registration itself is free and can be filed via the National Tax Agency's e-Tax electronic system or on paper. However, becoming a taxable business triggers a consumption-tax payment obligation, so you need a comprehensive cost calculation that includes accountant fees.
What is the Invoice System, and how does it affect affiliates?
The Invoice System (the "qualified invoice retention method") is a system under which a "qualified invoice" is required to claim the purchase tax credit for consumption tax. It took effect in October 2023.
There are two concrete effects on affiliate marketers. First, the basis for calculating the consumption-tax portion of your commission changes. A tax-exempt business cannot issue an invoice, so the ASP cannot claim the purchase tax credit and effectively absorbs that amount. Second, it becomes a factor in deciding whether to continue the relationship. Some ASPs are moving to scale back or end transactions with tax-exempt businesses.
Tax-exempt or taxable business — which should you choose?
Here is a rough guide by annual income range (this is general guidance only; consult a tax accountant about your individual situation).
| Annual income range | Recommended choice | Reason |
|---|---|---|
| Up to ¥1M | Tax-exempt business | Small consumption-tax benefit; excessive overhead |
| ¥1M–¥5M | Depends on situation | Decide based on whether major ASPs require taxable-business status |
| ¥5M–¥10M | Often taxable business | ASP preferences + expense-deduction benefits |
| Over ¥10M | Taxable business (mandatory) | Sales over ¥10M two years prior automatically make you a taxable business |
What is the 2026 transitional measure and where is this heading?
The Invoice System includes a transitional measure, and as of 2026 we are in the transition period.
- October 2023–September 2026: 80% of the purchase tax from tax-exempt businesses remains creditable
- October 2026–September 2029: reduced to 50%
- From October 2029: in principle, no credit available
In other words, right now (June 2026) we are in the middle of the transitional measure. Heading toward 2029, ASPs are expected to push harder for taxable-business status. It is important to decide your own position while you still have time.
What is the registration process if you become a taxable business?
When should you consult a tax accountant, and what does it cost?
If any of the following apply to you, we strongly recommend consulting a tax accountant.
- Annual affiliate income over ¥2 million
- Combined income from your main salary + side affiliate work over ¥5 million
- You work with multiple ASPs and your invoice handling is inconsistent across them
- You want to file as business income (including blue-form filing)
Accountant fees typically run ¥10,000–¥30,000 for a one-off consultation, or ¥10,000–¥30,000 per month for an ongoing advisory contract. Because a mistake in your invoice decision can lead to losses in the hundreds of thousands of yen, consulting a professional at the right time is well worth it.
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[Disclaimer] This article is informational and educational content produced by the Kingfin English Editorial Team. The methods and figures described are for reference only and do not guarantee any specific earnings. Affiliate operations involve ongoing effort and uncertainty from market conditions. The content of this article is based on information as of May 2026.