If you fail to pay a ticket fine in Amsterdam, the Dutch Central Fine Collection Agency (CJIB) follows a strict and automated escalation process. Initially, you will receive two reminders, each adding significant administrative fees—the first reminder usually adds 50% to the original fine, and the second doubles it. In 2026, if the fine remains unpaid, the CJIB can employ "enforcement measures" such as deducting the amount directly from your Dutch bank account, seizing your vehicle, or even blocking your ability to register new vehicles. For international visitors, the Netherlands participates in EU-wide data sharing; an unpaid fine can lead to a "flag" at border control, where you may be stopped upon re-entry to the country or even elsewhere in the Schengen Area and forced to pay on the spot. In extreme cases of non-compliance, a judge can issue an arrest warrant, which could result in "compulsory detention" where you are jailed for a set number of days to "repay" the debt, though this does not technically clear the original fine.