01Start with the relevant tax year
Keep records for different years separate. Gather income information and find your Belastingdienst letter, if you received one. No letter does not automatically mean no return: the Tax Administration explains how to check in Mijn Belastingdienst.
02Identify the type of letter and its deadline first
Belastingdienst letters do not all require the same response. A letter may request information, show a provisional or final assessment, communicate a decision or penalty, or remind you about payment. Check the sender, tax, year, assessment number or reference, amount and response or payment date. Then use the matching section of Mijn Belastingdienst or Mijn Belastingdienst Zakelijk; do not sign in through a link in an unexpected letter or message.
If you disagree with an assessment or decision, check the procedure stated for that document. Belastingdienst says many objections must be made within six weeks of the assessment, decision or payment date, while a provisional income-tax assessment is normally changed rather than challenged by an objection. Objection and payment are separate issues: payment may be postponed for the disputed amount, the undisputed amount remains due on time, and collection interest may apply. Keep the letter, proof of submission and copies of supporting documents; do not send original evidence.
03Moving during the year needs a separate check
Note your moving date and the periods you lived in each country. Belastingdienst has a separate return for the year of immigration or emigration. You can file online through Mijn Belastingdienst; if you cannot or do not wish to file online, the Tax Administration offers a paper M-form. If you have income from several countries, do not assume every amount is treated in the same way.
04Separate bookkeeping, filing and payment
Keep personal income tax and VAT tasks distinct. Gather invoices and expenses, check Tax Administration messages and agree with your bookkeeper who handles each step.
Preparing records, submitting a return and making a payment are separate checkpoints. Use the dates given for your circumstances rather than copying someone else’s example.
05Check the 30% ruling against the current year’s rules
The Dutch expat scheme, commonly searched as the 30% ruling Netherlands, does not apply automatically to every foreign employee. Belastingdienst lists conditions concerning paid employment, specific expertise, recruitment from abroad and previous residence. Salary thresholds and other parameters can change by year.
The application is connected to the employer and the employee’s circumstances. Do not estimate net salary from a promotional example or treat a job title as proof of eligibility. Confirm current conditions, the application form and any transitional rules directly with Belastingdienst.
06Prepare an enquiry when the route is unclear
Before sharing documents, describe whether you need a one-off return, a review of your records or regular bookkeeping. Our accountant page helps you prepare that first enquiry.
Check Toeslagen separately: benefits are not a promised tax refund. Working in the Netherlands alone does not establish whether you will receive money back or have to pay more.