Dutch Tax Audit: How to Prepare and What to Expect

A letter from the Belastingdienst lands on your doormat. They want to inspect your records. For many entrepreneurs, this is a moment of panic. But a tax audit does not have to be a disaster. With proper preparation and organised bookkeeping, you will get through it just fine.

Why are you being audited?

• Risk selection: your return contains items that deviate from the average in your industry.
• Signals: information from third parties like banks or former partners.
• Random sample: sometimes it is purely random. You did nothing wrong but your number came up.

Types of audits

• Full audit (boekenonderzoek): an inspector reviews your records covering multiple years and tax types.
• Partial audit (deelonderzoek): focused on a specific item or year.
• Information request: a written request for clarification or documents. Less invasive but you must respond.

How to prepare

Step one: call your accountant. Let them handle the communication. They know the rules, understand what the inspector is looking for, and can keep emotions out of the process.

Step two: gather the requested documents. Typically these include annual accounts, bank statements, invoices, contracts, mileage records, and time logs.

Step three: review your records for known weak spots. Missing invoices? Private expenses booked as business? Better to find these yourself than to let the inspector discover them.

Possible outcomes

• Nothing: everything checks out.
• Correction: the inspector finds errors and adjusts your return. You receive back taxes plus interest (at least 4%).
• Fine: for intentional errors or gross negligence, a penalty of 25% to 100% of the back taxes.

Tips for a smooth audit

• Be open and honest. Lying or withholding information only makes things worse.
• Answer only what is asked. Do not volunteer extra information.
• Keep a professional tone.
• Ask for an extension if you need more time to gather documents.

Received a letter from the Belastingdienst? At MOJKA Finance, we guide you through the entire process. As your expat accountant in Rotterdam, MOJKA Finance is here to help – view our services or call us directly.