Flat-rate professional expenses as a self-employed person: pros and cons.
Last updated: 22 May 2026
Details
- Source: https://dexxter.be/forfaitaire-beroepskosten-voordelen-nadelen/
- Topic: flat-rate professional expenses vs. actual professional expenses (personal income tax)
- Who it’s for: self-employed (sole proprietors), liberal professions, assisting spouse
Short explanation
As a self-employed person you are taxed on your taxable income (for a sole proprietorship: your profit). By deducting professional expenses, you reduce your taxable base.
You typically have two approaches:
- Actual expenses: you deduct real costs and keep evidence.
- Flat-rate expenses: you deduct a fixed percentage/flat amount set by the tax authorities, without receipts.
In practice you choose the option with the highest total deduction.
Actual vs. flat-rate
- Actual expenses
- Deduct your real expenses.
- You must be able to prove them.
- Often more advantageous when you have meaningful costs (equipment, car, office, …).
- Flat-rate expenses
- Deduct a flat amount without proof.
- Often interesting when you have low expenses.
- Subject to caps, so you can hit the maximum quickly.
Pros of flat-rate expenses
- Less admin work.
- More predictability.
- Useful when actual costs are very low.
Cons of flat-rate expenses
- Often a lower deduction than actual costs.
- Less tailored: you cannot separately deduct specific extra costs beyond the flat amount.
Indicative caps (as stated in the source)
Source
https://dexxter.be/forfaitaire-beroepskosten-voordelen-nadelen/
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This article was written with AI and may contain inaccuracies. Visit the source website to consult the original information.
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