[Summary]
Affiliate income is income where the timing of results, approvals, and deposits is likely to be delayed. The reason many people panic before filing their tax return is because they tend to put off organizing their statements until later.
Basically, we aggregate sales for each ASP and organize necessary expenses such as server fees, domain fees, outsourcing fees, and interview fees. If you are a company employee, check the 200,000 yen income rule and resident tax separately.
In this article, we will organize the points that beginners should check first in the order in which they are most likely to stumble in practice. Since taxes vary depending on individual circumstances, please confirm the final decision with an official or specialized contact such as the National Tax Agency, local government, tax office, or tax accountant.
First, the conclusion
Basically, we aggregate sales for each ASP and organize necessary expenses such as server fees, domain fees, outsourcing fees, and interview fees. If you are a company employee, check the 200,000 yen income rule and resident tax separately.
| Check points | way of seeing |
|---|---|
| ASP details | Check performance fees, fixed fees, and transfer amounts. |
| expenses | Site operating costs, article outsourcing costs, analysis tools, etc. |
| Withholding tax | Check whether there is a reward depending on the type of reward. |
| record | It's easier to record by month and ASP. |
The important thing when reading tax articles is not just memorizing the system name. It's about looking at your income, accounts, deductions, and reporting methods separately.
common misconceptions
- Roughly aggregate only based on deposits.
- I think I should look at the ASP management screen later.
- Do not save receipts for expenses.
This is an area where it is easy to get confused just by reading the search article. In particular, "sales" and "income," "income tax" and "resident tax," and "NISA" and "taxable account" need to be treated as different things.
Order of actual checking
If you are confused, it will be easier to organize if you check them in the following order.
- Did you save annual statements by ASP?
- Have you organized your expenses by month?
- Is your income over 200,000 yen?
- Have you checked your resident tax?
If it is still difficult to make a decision after looking at the above, it is safer not to leave it to your own judgment. Please check through official channels such as consultation with the tax office, the National Tax Agency's tax return preparation corner, and consultation with a tax accountant.
Summary
Affiliate marketing will be easier if you create a recording system before you start making money. Even just a monthly sales/expenses memo can greatly reduce the burden of tax filing.
While it's hard to get away with not knowing about taxes, there's no need to fear them too much if you sort them out early. When your income increases, when you start investing, or when you want to use deductions, it is most practical to prepare your records early rather than at the end of the year.
Source/reference materials
- National Tax Agency, No.1900 Salary earners who are required to file a final tax return
- National Tax Agency, No.1906 When salaried workers earn supplementary income from online auctions, etc.
- Confirmation date: 2026-05-30