Changing cars: align registration, liability and optional cover before collection
A dealer’s handover appointment is not proof that every insurance step is complete. Build a timed checklist for the old and new vehicles.
One handover, several different confirmations
Changing a car involves a purchase contract, registration documents and insurance arrangements that may not share the same effective date. The fact that a dealer has your key ready does not establish that every step is complete. This dossier, checked on 15 October 2026, uses Vaud's official registration instructions as a concrete example. Requirements elsewhere must be checked with the relevant cantonal authority. Before arranging collection, write down the new vehicle identification, proposed handover time, registration plan and who is responsible for each document. A brief written checklist is especially useful when delivery dates change at short notice.
The liability attestation serves a specific purpose
Vaud's change-of-vehicle procedure requests an insurance attestation alongside the required vehicle documents and the old registration certificate to be cancelled. Its new-plate procedure specifies an electronic liability attestation valid on the day of registration. Ask the insurer and cantonal office to confirm the route applicable to your transaction. An attestation of liability is not by itself a description of collision, theft, parking damage or assistance benefits. Get the optional cover and its effective time separately in writing. Do not move plates between vehicles or drive away merely because someone says the paperwork will be sorted out later.
A hypothetical Friday collection
Imagine the new car is ready on Friday afternoon, the insurance request has been submitted, but registration completion remains unconfirmed. The old car is being traded in the same day. Treat the uncertainty as a handover issue to resolve with the dealer, insurer and authority, not as an assumed free period. If collection moves to Monday, update the timing for both vehicles and any storage arrangements. No universal number of provisional-cover days is promised here. The example shows why a quotation, an electronic request and a completed authorisation should not be casually treated as the same evidence.
Review the risk while both cars are involved
The new vehicle may have a different repair cost, financing requirement, driver profile or parking situation. Confirm declared use and drivers rather than transferring an old premium comparison unchanged. Ask what happens to optional cover on the traded-in car before the dealer formally takes responsibility, and whether accessories or winter wheels are included in the new insured value where relevant. If a finance restriction such as code 178 appears on a Swiss registration document, follow the authority's instructions. Convenient continuity is useful, but it should not conceal an uninsured interval or an obligation attached to the financing contract.
Check the first documents after delivery
Compare the issued policy and registration certificate with the vehicle identification, start date, deductible, selected benefits and declared keeper. Keep handover evidence, the old vehicle's cancellation confirmation and any premium adjustment. If you receive an invoice covering overlapping periods, ask for an itemised explanation before assuming it is an error or cancelling indiscriminately. Store assistance contacts in the new car and check how an incident must be reported. The objective is a clean transition that you can document, with the intended protection already in force, rather than discovering after a claim that collection time and cover time were never aligned.
Sources and further reading
Original Clearwise analysis. External reporting provides context; rules and contract terms must be verified with the competent authority or provider. Some press articles may require a subscription.
Apply this to your situation
Compare your actual documents and clarify what matters before making a commitment.
Request a free consultationGeneral guidance, not a binding quote or personalised legal, tax or investment advice. Examples are hypothetical and results are not guaranteed.
