Traffic fines in the Netherlands are handled by the Centraal Justitieel Incassobureau (CJIB). If you receive a "Wet Mulder" fine (indicated by a large letter 'M' in the top right corner), you can pay it easily through the CJIB website using the "Digital Service Counter." If you are a resident, you can log in with your DigiD to pay via iDEAL. For non-residents or tourists, the fine notice sent to your home address will include an IBAN and a reference number for a standard international bank transfer. It is crucial to pay by the "Vervaldatum" (due date), as the Dutch system is famous for its automatic and steep "verhogingen" (increases): the first late payment adds 50% to the fine, and the second adds 100% of the original amount. If you were in a rental car, the rental agency will likely pay the fine and charge your credit card a hefty "administrative fee" (usually €30–€50) on top of the actual ticket cost.