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12 free calculators · 2026

Which tax calculator fits you?

Pick your situation or search directly — from the commuter allowance to the feed-in tariff. New 2026 laws (active pension, uniform distance allowance) are already built in.

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These calculators show the flat rates. Restio finds the rest.

A calculator runs once. Restio is with you all year — receipt by receipt, with paragraph, deadline, and number — and finds the deductions you didn't know about.