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All important dates and deadlines for your tax return
About this calendar
This calendar shows all important deadlines for Dutch tax filing. Deadlines with a red indicator are approaching soon — take action in time. Click “More info” for official information from the Tax Authority.
Start early gathering annual statements, bank statements, and other documents.
Don't wait until the last moment. Start at least 2 weeks before the deadline.
The Tax Authority pre-fills much of the data. Always verify this information.
Can't meet the deadline? Request an extension in time through the Tax Authority.
Want to calculate how much tax you need to pay?