Freelance income is still income to report
IRAS says self-employed individuals—including freelancers, commission agents, hawkers, taxi drivers, sole-proprietors and partners—report income from business activities as business income, not as employment salary. For an individual, that income forms part of total personal income and is assessed at individual income-tax rates.
The label used on a client invoice does not decide the tax category. The important question is whether you earn income by carrying on a trade, business, profession or vocation. If you are unsure how your arrangement is classified, use IRAS’s self-employed guidance or seek tax advice rather than copying a friend’s return.
Work out profit from reliable records
A useful system separates gross revenue from business expenses. IRAS describes allowable business expenses as costs incurred wholly and exclusively to produce income. Private spending is not automatically a business deduction simply because you work from home or use the item occasionally for work. Keep records that show the expense, business purpose, date and amount.
IRAS’s tax guidance says sole-proprietors and self-employed individuals report business income in Form B or B1. For revenue of S$200,000 or less, IRAS asks for a two-line statement: revenue and adjusted profit or loss. If revenue is more than S$200,000, it requires a four-line statement showing revenue, gross profit or loss, allowable deductions and adjusted profit or loss.
These statements are summaries. Maintain source documents—such as invoices, receipts and bank records—so the figures can be substantiated. IRAS’s guide says taxpayers should keep proper records and documents supporting income, deductions and reliefs declared.
Tax filing and CPF use the same income story
If IRAS notifies you to file a return, follow the notification and report all relevant income. For the preceding calendar year, IRAS lists filing conditions for self-employed people that include total annual income above S$22,000, self-employment net profit above S$6,000, or being a non-resident who derived income from Singapore. Check the current year’s instructions for your situation.
CPF Board uses IRAS-assessed NTI to calculate mandatory MediSave contributions for self-employed people. That makes accurate reporting important beyond the tax bill: it can affect the CPF MediSave notice too. Business expenses should not be claimed twice or estimated without support.
Separate tax reserves from operating money
Set aside a reserve from client payments rather than assuming the full amount is available for personal spending. A simple bookkeeping routine can track gross receipts, business costs, tax reserve, MediSave reserve and owner withdrawals separately. If your income is irregular, use conservative cash-flow assumptions and check the reserves after each tax assessment.
The aim is not to make tax complicated. It is to avoid a year-end scramble by recording income when received, recording expenses with evidence, and using the right return sections. If you have several business activities, distinguish their records so that each can be reported accurately.
Sources
- IRAS: Filing responsibilities of self-employed individuals — filing categories and criteria; verified 15 Oct 2026.
- IRAS: Calculating business income — reporting and statement formats; verified 15 Oct 2026.