Starting a sole-trader business in Finland

Short answer: first define your service, customers and costs. Then establish registration, tax, bookkeeping and insurance requirements. A sole trader can start through MyTax; Trade Register notifications go through YTJ. A Business ID alone does not settle every requirement.

Prepare before registering

Write down what you sell, to whom and how you deliver it. Separate business costs from the amount you need for living expenses. Check any sector-specific licence and whether your residence status supports the activity.

Migri’s guidance covers entrepreneurship with a residence permit. Registering a business and having grounds to reside in Finland are different matters. Check your own conditions before relying on registration alone. Official guidance checked on 11 November 2026.

MyTax or YTJ?

The Tax Administration’s start-up guidance directs sole traders to MyTax for starting activity in its registers. If you also register in the Trade Register, use the YTJ online service.

PRH’s sole-trader instructions explain when Trade Register notification is possible or necessary. It is usually voluntary. Check your circumstances, proposed names and required information.

Do not submit duplicate start-up notifications merely because an entry is not yet visible. Check the notification’s status first.

Tax and bookkeeping continue after registration

Establish your prepayment tax estimate and whether you need prepayment and VAT registration using official guidance. Money invoiced to a customer is not automatically income available for personal spending.

Arrange bookkeeping before issuing the first invoices. Organise sales invoices, purchase receipts and contracts. Your own tracker can show unpaid invoices, but does not by itself establish compliance with all accounting obligations.

Check YEL separately

The Finnish Centre for Pensions explains that entrepreneurs arrange pension insurance when YEL conditions are met. YEL income concerns the value of your work contribution; it should not simply be copied from turnover or personal withdrawals.

Ask an insurer how your activity is assessed and include insurance in your cost planning. Calling the business a side activity does not remove the need to check.

For first assignments, see the freelancing and customer guide. Compare employment options using the job-search guide.

Official sources

Checked on 11 November 2026.

• Vero: start-up notification
• PRH: sole traders
• Migri: entrepreneurship with a residence permit
• Finnish Centre for Pensions: YEL