
Understanding Taxes as a Teen Small Business Owner in Singapore: What You Actually Need to Know
By Valerie, Fall NexLeader 2026
Starting a small business as a teenager can be exciting. Whether you tutor younger students, sell handmade products, or offer freelance services, earning your own money is an opportunity to develop independence and valuable skills. But alongside your first customers comes a less exciting responsibility: understanding taxes.
Tax rules can seem complicated, especially when you are still in school. However, learning the basics early can help you avoid costly mistakes as your business grows.
The first thing to understand is that being young does not automatically exempt you from tax obligations. In Singapore, the Inland Revenue Authority of Singapore (IRAS) generally treats income earned through self-employment, such as freelancing or running a small business, as business income. Whether you need to file a tax return depends on your circumstances and the applicable requirements.
According to IRAS, individuals generally need to file a tax return if their total annual income exceeds S$22,000 or their annual net profit from self-employment exceeds S$6,000. These are filing thresholds, not separate guarantees that no tax is payable below them. Your actual tax obligations depend on your individual situation.
The next step is to keep clear records from the beginning. Record every payment you receive and every expense related to your business. For example, if you sell handmade accessories, keep track of your sales alongside the cost of materials and packaging. These records help you calculate your profit accurately instead of confusing total revenue with the money you actually earn. IRAS requires self-employed individuals to retain relevant business records and supporting documents for five years. A simple spreadsheet, together with receipts and invoices, can make this process manageable even for a small side hustle.
You should also understand which expenses may be deductible. Business expenses generally need to be incurred wholly and exclusively to produce your income and must meet IRAS requirements. Personal purchases do not automatically qualify just because you also run a business.
Finally, ask for guidance when you are unsure. IRAS provides official information for self-employed individuals, including online sellers and service providers. Teenagers can review these resources with a parent or trusted adult to understand the rules that apply to their circumstances.
Taxes may not be the most exciting part of entrepreneurship, but financial responsibility is part of building a sustainable business. By keeping accurate records, understanding filing requirements, and seeking reliable advice, young entrepreneurs can focus on growing their ideas with greater confidence.
References
- Inland Revenue Authority of Singapore. “Filing Responsibilities of Self-Employed Persons (Including Individual Partners)” IRAS, https://www.iras.gov.sg/taxes/individual-income-tax/self-employed-and-partnerships/tax-obligations-of-self-employed-persons/filing-responsibilities-of-self-employed-persons-%28including-individual-partners%29
- Inland Revenue Authority of Singapore. “Keeping Proper Records and Accounts” IRAS, https://www.iras.gov.sg/taxes/individual-income-tax/self-employed-and-partnerships/keeping-proper-records-and-accounts
- Inland Revenue Authority of Singapore. “Tax Guide for Online Sellers and Service Providers” IRAS, https://www.iras.gov.sg/taxes/individual-income-tax/self-employed-and-partnerships/tax-obligations-by-industry-trade-or-profession/tax-guide-for-online-sellers-and-service-providers