FFCheckBelastingCheck
NLEN

My income tax assessment is way too high — how to handle?

DIRECT ANSWER

Objection + payment deferral within 6 weeks. Substantiate with return corrections + evidence (year-end statements, expense receipts, mortgage interest).

Reviewed by FFCheck-redactie · Last reviewed 2026-05-28

Common causes of a too-high IB assessment: (a) forgotten deductions (mortgage interest, donations, medical, study); (b) unprocessed payroll tax from job change; (c) wrong income estimate on provisional assessment; (d) ex officio assessment on non-filing. Plan:

  1. check final assessment vs your returndiscrepancy = request substantiation
  2. gather evidence for missed deductions
  3. file objection within 6 weeks of date stamp with clear recalculation + relevant Wet IB articles
  4. SIMULTANEOUSLY request payment deferral with the Collectorotherwise collection continues. On partial win: standard objection decision. On full rejection: appeal to tax court within 6 weeks (€54court fee 2026).

Related

Income tax assessment objection Formal objection citing Wet IB 2001 + Awb. With hearing request + payment-deferral pointer. €19 PDF.What is an objection letterA bezwaarschrift is your formal objection against a tax assessment. 6-week window, free, right to hearing. We explain procedure and odds.Can collection continue during objectionBy default yes — objection does NOT suspend payment. But you can request DEFERRAL — which the Collector must grant on "reasonable" objection…Payment deferral request Formal request to the Collector under Collection Act art. 25. Suspends collection during objection. €19 PDF.

Sources

Updated: 2026-05-28

Other FFCheck pillars

PrivacyCheckForce any Dutch company to delete youReisclaimEU 261 flight-delay €250–€600 claimsKlachtenFormal complaint letters that landEnergieCheckEnergy rights + claim letters
Fix-it guarantee

Not happy? We regenerate the PDF free — no questions.

PDF in your inbox

Within 60 seconds of payment. With VAT invoice.

Registered Dutch company

VAT + Chamber of Commerce on every invoice. Fully VAT-compliant.

KvK 82724822 BTW NL003722987B94