[Summary]
As your side business grows, you may be wondering whether you should become a sole proprietor. It is not difficult to register your business, but it does increase your tax and record responsibilities.
The advantage of becoming a sole proprietor is that it becomes easier to manage income and expenses as a business, and you can consider filing a blue tax return. The disadvantage is that there is more to think about, such as bookkeeping, tax returns, social insurance, and consumption tax.
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
The advantage of becoming a sole proprietor is that it becomes easier to manage income and expenses as a business, and you can consider filing a blue tax return. The disadvantage is that there is more to think about, such as bookkeeping, tax returns, social insurance, and consumption tax.
| Check points | way of seeing |
|---|---|
| Benefits | You can consider filing a blue tax return, which makes it easier to organize your business income and expenses. |
| Disadvantages | The burden of bookkeeping, tax returns, and fund management increases. |
| person for | People who have continuous sales and want to grow it as a business. |
| Caution | Office workers should also check their work regulations. |
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
- It is simplified by saying that filing a business opening notification will save you taxes.
- Put off accounting and tax funds.
- Don't check the company's side job regulations.
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.
- Is there continuous sales?
- Are you planning to use the blue tax return?
- Can you keep bookkeeping?
- If you are a company employee, have you checked the regulations?
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
Deciding whether to become a sole proprietorship is not just based on tax savings. Consider the continuity of income, record-keeping burden, and relationship with the company when making your decision.
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.
- National Tax Agency, No.2070 Blue tax return system
- Confirmation date: 2026-05-30