Gentrepreneur
Entrepreneurship Toolbox

Flat-rate professional expenses as a self-employed person: pros and cons.

Last updated: 22 May 2026

Details

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:

  1. Actual expenses: you deduct real costs and keep evidence.
  2. 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/

Want to know more?

This article was written with AI and may contain inaccuracies. Visit the source website to consult the original information.

View source website

Tags

Related articles.

Entrepreneurship Toolbox

Entrepreneurship Toolbox

Intro and overview of all articles within the “Entrepreneurship Toolbox”, with thematic structure and a table of contents.

Read article
Entrepreneurship Toolbox

IT and copyright in 2026: which activities (again) qualify?

Since 29 July 2026, computer programs have once again been explicitly included in the tax-favourable regime for copyright. This means IT professionals who contribute to the…

Read article
Entrepreneurship Toolbox

Pre-diagnostic service for intellectual property (FPS Economy)

Free initial assessment of your intellectual property rights by a recognised IP expert, including a tailored report and recommendations (for Belgian companies).

Read article
Entrepreneurship Toolbox

Intellectual property (IP) – overview & support (VLAIO)

VLAIO overview page on intellectual property: what IP is, which protection options exist, how to apply/register rights, enforcement, costs, and where to find free advice and tools.

Read article

Question not answered? Ask our AI assistant (bottom right) or email our team.