Simulators

Free tools for pricing a single transaction before you go looking for your broker statement. No account, no upload: type an amount and you get the figure and the reasoning behind it.

Stock-exchange tax (TOB)
The rate, the amount, and who pays it over.
Late-filing penalty (TOB)
What filing late costs.
2026 capital-gains tax
Am I caught, and for how much?
Compound interest (after Belgian tax)
What the plan promises, and what it leaves you.
Fee impact
What fees really cost, over twenty years.
Dividend withholding tax
Two taxes, in that order.
Your allocation: the range of outcomes
Your mix, your assumptions, the whole range.
Withholding or opt-out
The same 10%, by two routes.
Am I affected by the capital-gains tax?
Five questions, and nothing to look up first.

Have your broker export to hand?

The calculator reads a full export and prices the whole year, position by position.

Open the calculator

Simulators

Stock-exchange tax (TOB)

Late-filing penalty (TOB)

2026 capital-gains tax

Compound interest (after Belgian tax)

Fee impact

Dividend withholding tax

Your allocation: the range of outcomes

Withholding or opt-out

Am I affected by the capital-gains tax?

Have your broker export to hand?