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Frequently Asked Questions

Answers to the most common questions about Dutch income tax, Box 3, DTAA relief, filing, and how this calculator works.

Getting started

9

Box 1: income tax

8

Box 3: savings and investments

10

Foreign assets and double taxation

9

Filing your return

7

Refunds, payments and letters

8

Deductions

2

Living here as an expat

4

Using the calculator

7

Work and salary

7

Your home

5

Allowances and family

4

Self-employed (ZZP)

4

More tools on this site

6

Account, privacy, and AI features

6

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See how it works

These answers are simplified for clarity and reflect 2026 rates and rules. Tax law changes every year: always verify current figures on belastingdienst.nl or with a registered adviser before filing.