The customs declaration for a vehicle: who files what, and when

When a car leaves the single market it is declared for export in the state of departure and for import in the state of destination. Those are two separate procedures before two different administrations that know nothing of each other beyond referring to the same car. Complete one and forget the other and you have not half a procedure but two problems.

The export declaration usually interests the buyer for one reason only: out of it comes the evidence with which a dealer can refund the VAT. Talking about the tax without the export is pointless, and without confirmation at the crossing there is no export anyone can evidence.

The import declaration, by contrast, is the step without which the car will not be registered at the destination. It produces the document the registration authority wants to see. Inside the single market both procedures fall away; the movement is then informal, and this piece does not concern you.

The declarant is whoever files the declaration in their own name — and thereby stands behind its accuracy. That is no formality: if it later turns out that the declared value was too low or the weight wrong, the administration comes to the declarant, not to the seller abroad.

On a private import that is normally you. If you are importing for someone else — a partner, a parent, a friend — you need written authority for it, and the question of who the car will later be registered to should have the same answer as the question of who declared it.

Because responsibility sits with the declarant, one plain rule applies to the value: declare what was actually paid, evidenced by the contract and proof of payment. Understating it saves a modest sum and creates a risk out of all proportion to it.

In the EU the export declaration is filed electronically with the office of export competent for the place. It produces a reference number that accompanies the car through the procedure. At the crossing, the office of exit confirms that the goods have actually left the customs territory — and only that confirmation is the evidence a dealer waits for.

Below a value the customs administration sets, an oral declaration is provided for. That rarely applies to cars, because their value is normally above it. Which route applies in your case is something the customs office at the crossing will tell you — in a call that always pays for itself.

In practice, on dealer purchases the seller or a service provider they engage often handles the export declaration, because they need the evidence for their own books. Buying from a private individual, nobody does it — so either you do, or it does not happen.

The declaration is made on entry, at a staffed customs post, with the car present. For Switzerland the Federal Office for Customs and Border Security is responsible; it runs an electronic declaration system, and private individuals file at the post's counter. Which post is staffed when varies considerably, and smaller crossings are not available around the clock.

The timing question decides the whole day. A car crossing an unstaffed border in the evening or on a Sunday is not declared, and clearing it afterwards is a separate procedure that costs more time than any detour to a staffed post. If you are driving yourself, plan the arrival at the customs post first and set the collection from the seller around it.

If a haulier is driving, its customs agent handles the declaration. That is convenient and changes nothing about responsibility for the data — the documents the agent works from come from you.

A customs declaration describes goods in a way that allows the levies to be calculated. For a car that means: what is it, who owns it, what is it worth, what does it weigh and where does it come from. Bring the documents covering those five points in order and you are through in half an hour.

The tariff heading is where private individuals most often get stuck. It follows from the type of drive and the engine capacity rather than from the model name; the officer determines it with you from the vehicle papers. You cannot prepare it — you only have to bring the papers it follows from.

There is deliberately no figure here. Rates change through a regulation nobody hears about, and an out-of-date number in a guide is worse than none — the reader relies on it and gets it wrong. What practically never changes is the basis of assessment, and with that you calculate correctly using today's rate.

For import into Switzerland the order is the one the country guide also sets out: duty is assessed on the car's weight, the vehicle tax on its value, and import VAT on the value plus duty, vehicle tax and transport costs to the border. That last quantity therefore already contains the two before it — which is why a flat mark-up on the purchase price regularly underestimates the result.

The applicable rates are published by the customs administration in question, for Switzerland the BAZG. Look them up before you bid rather than after you sign — the information is free and takes longer to obtain than the calculation you do with it.

Forwarders and customs agents can act in two roles. In direct representation they act in your name and for your account: you remain the declarant and carry the responsibility. In indirect representation they act in their own name for your account — then they are liable alongside you, and that shows up in their price.

For a private individual with one car a service provider is rarely worth it, because the counter procedure is manageable. It is worth it when the car is being transported, when several cars come together, or when the situation is unusual — removal goods, an inheritance, a car without standard papers.

In every case: the documents come from you, and the data is either right or it is not. A service provider does not check whether your contract states the real price; it enters what it is given.

The import ends in a decision showing the levies charged — in Switzerland the assessment decision, in other states its equivalent. It is not a receipt for the file but the precondition for the next step: without this document the registration authority will not take the car.

That document also carries a deadline by which the car has to be registered. It is the reason the whole import runs in the order it does: clear the car through customs before you have an appointment with the registration authority and you burn the deadline in the waiting room. Get the appointment before you cross the border.

Check the decision while you are still at the counter. Chassis number, value, weight and your name have to be right — a transposed digit in the chassis number only surfaces at the registration authority, and by then you are two hundred kilometres away.

A declaration can be corrected and a decision can be challenged. Both have a deadline, both need evidence, and both run through the administration that issued the decision. Anyone noticing that a value was carried over wrongly or that the weight does not match the vehicle papers should get in touch at once — nothing corrects itself.

The most common case is harmless and still tiresome: the declared value includes transport costs that were never incurred, or omits ones that were. Either can be settled with the receipts. The rarer and more serious case is a value deliberately understated — there it is no longer a matter of a correction but of proceedings.

Hence the advice this piece began with: bring the receipts, declare what was actually paid, and read the decision before you walk away from the counter. The whole thing is not a test to be passed but a calculation meant to come out right — and it does, provided the figures you bring with you are right.