Risks of Selling a Car Privately via Promissory Notes and Installments

Sales Guides
Author: Mustafa Odabaşı
Creation: 25 October 2026

If payments stop while the vehicle you sold on installments remains on your registration, the motor vehicle tax (MTV), traffic fines, and enforcement liability may be added to your deed.

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Selling your vehicle in exchange for a promissory note or in installments is a valid path under Turkish law; however, the risks the seller assumes - such as the vehicle remaining registered in their name, the enforceability of the note, and disruptions to the payment plan - are far heavier than in a cash sale with a notarized transfer. On this page, we examine one by one the legal consequences of selling a vehicle with a note or in installments, the Motor Vehicle Tax and traffic fine obligations, the enforcement route to follow when payments stop, and practical measures that increase safety.

Highlights

A note gives the creditor the right to initiate enforcement directly through the enforcement office without going to court; the limitation period for such proceedings is 3 years.
The taxpayer for the Motor Vehicle Tax is the registered owner of the vehicle; anyone who sells the vehicle without transferring it continues to bear the tax and fine obligations.
If the first installment is not paid, the seller may withdraw from the contract; in the event of default on later installments, all installments may be deemed due.
A notarized note prevents signature denial and speeds up enforcement proceedings; it is not required, but it makes a big difference.
The Notary Secure Payment System makes it possible to carry out used vehicle payments at the notary without carrying cash.

Is selling a car with a note legal, and what does a note legally mean?

Senetle araba satışı yasaldır ama riskin tamamını satana yükler: elinizde kalan yalnızca bir ödeme vaadidir.

Yes, it is legal. Within the framework of trade legislation and the law of obligations in Türkiye, selling all or part of a vehicle in exchange for a note is a valid transaction. In the sales contract drawn up at the notary, it is written that the price has been paid; if the parties wish, they may make an additional agreement between themselves. So the problem is not illegality, but the distribution of risk: in a cash sale the money is in your hands, while in an installment sale you hold only a promise of payment and a vehicle still registered in your name.

A note is a formal document containing an acknowledgment of debt in which a specific payment amount is committed; its common name is a promissory note. The most important feature that distinguishes it from an ordinary acknowledgment of debt is that it gives the creditor the right to initiate proceedings directly at the enforcement office without going to court. Under the special seizure procedure for negotiable instruments in the Enforcement and Bankruptcy Law, even a creditor without a court decision can open proceedings based on the note. The statute of limitations for such proceedings is 3 years; allowing the period to lapse weakens your claim.

It is also useful to know that in proceedings based on a note there is no special seizure route, and if the debtor is not subject to bankruptcy, only certain methods may be used: your note does not protect you automatically; it only becomes a powerful instrument when you follow the correct procedure.

What does a note accepting seizure mean?

In practice, some of the notes proposed to the seller contain a statement that the debtor accepts seizure in advance. To be honest here: the legal scope of this statement is a matter of specialized expertise beyond general knowledge, and this page does not offer a definitive, reliable explanation of it. So if such a release or acceptance clause is to be added to your note, do not build the matter on guesswork; consult an enforcement law attorney before signing the contract. It is enough to know this for certain: every promissory note you sign carries the potential for enforcement proceedings if left unpaid. An inconsistent, blank note, or one whose copy you do not hold, may turn against you rather than protect you.

What should not be done under this heading is also clear: do not sign blank notes; the amount can be changed afterwards. Do not accept payment without a contract. Always keep copies of the notes you receive.

If the transfer is not made, who is issued the MTV and traffic fines?

This is the most commonly overlooked aspect of installment sales. The taxpayer of the Motor Vehicles Tax is the owner of the vehicle's record and registration; even in vehicles held in trust or used by someone else, the taxpayer is the person registered in the records. If your vehicle still appears under your name, the MTV is assessed to you even if you are not the one driving the car every day. In the past, these matters were settled with a verbal agreement at the door; now the system works completely differently, and the registered owner on paper is responsible for everything in the eyes of the law.

The situation is similar on the traffic side. The vehicle cannot be sold before the traffic fine issued to the plate is paid. The transfer of vehicles with MTV or traffic fine debts is automatically blocked by the notary system; if a lien has been placed on the vehicle, a sale cannot even be considered. Debts left unpaid for a long time also bring further consequences. In other words, when you sell the vehicle in installments and delay the transfer, even if the buyer misses a payment, the tax debt and fines sent to the plate accumulate in your name; until these debts are cleared, you can neither sell nor transfer the vehicle.

To put it roughly: delaying the transfer places a silent debt burden on the seller's back. We cover how to balance the transfer with the payment plan in the collateral scenarios section below.

What you can do if the installments are not paid: withdrawing from the contract and the enforcement process

There are two mechanisms that strengthen the seller's hand in installment sales contracts. First, if the first installment is not paid, the seller can withdraw from the contract; the vehicle remains with the seller, and the transaction is reversed. Second, if a default occurs on any of the remaining installments, the seller can act as if all installments have become due; in other words, the right to demand the entire remaining debt arises. It is essential that these are explicitly written into your contract; even if true in practice, a right that is not in writing turns into a mere claim to be argued at the enforcement desk.

If payments have stopped entirely and you hold a valid note, the way forward is enforcement. The main outline of the process works as follows:

Based on the note, enforcement proceedings are initiated through lien specifically for negotiable instruments; no court decision is required.
Once the proceedings are finalized, the vehicle is seized via the UYAP system; the record of the seizure date is considered the start of the sale process.
Within one year of the final seizure date, a request must be made for the vehicle to be converted into cash through sale; the sale costs must be deposited within 15 days.
The seized vehicle is converted into money through auction during the legal sale process, and your receivable is collected from this amount.

The distance here is long and arduous. That is why the common view among experienced sellers is that establishing a secure structure from the start is always cheaper and less wearing than pursuing enforcement later.

Measures that increase safety in promissory note and installment sales

Notarized promissory note and comprehensive written contract

Having the promissory note approved by a notary is not mandatory; but approved notes are clearly safer. Denial of signature is prevented, the date is fixed, evidential value is strengthened, and enforcement proceedings are accelerated. A small expense makes an incomparable difference.

Along with the promissory note, there must always be a written contract, and it should include the following elements:

Vehicle information: license plate, chassis number, engine number
Sale price and payment plan
Down payment amount and date
Installment amounts and due dates
Late payment interest
Time and conditions of transfer
The rights and obligations of the parties

Collateral scenarios that balance the transfer with payment

Remember the Motor Vehicle Tax and traffic fine problem: if you do not transfer the vehicle, the debts remain with you; if you transfer it right away, the vehicle slips out of your hands. There are three known scenarios that emerge from this predicament:

Scenario	Transaction carried out	Security it provides to the seller
Registration with the seller	The registration remains with the seller, and the transfer is made once all notes are paid	The transfer is tied to the completion of payment
Transfer and lien	The vehicle is transferred, but a mortgage or lien is placed in favor of the seller	The lien is removed once the debt is settled; if unpaid, the security remains
Collateral note	The vehicle is transferred, and a collateral note for a high amount is taken	The enforcement route based on the note remains open

In a notarial transfer, the seller can also place a legal lien on the registration to prevent sale to third parties until the buyer's debt is settled. In some cases, requesting a guarantor comes up; when used together with a vehicle lien that is lifted once the debt is settled, the collateral line is significantly strengthened. On the other hand, remember: the party liable for old debts on the vehicle after the notarial transfer is not the seller but the buyer themselves; nevertheless, having a vehicle check performed before entering into the transaction is in the interest of both parties.

The Notary Safe Payment System and transfer costs

The Safe Payment System of the Union of Turkish Notaries is a mechanism designed to carry out second-hand vehicle purchase and sale payments at the notary without carrying cash; banks also cooperate with this system to offer the same service. When the money is deposited securely, the notary approves the sales contract and carries out the registration. Write the usage fee into your budget, noting that it will be added separately to the amount to be sent to the seller. In a notarial sale, the seller is asked for an ID, the vehicle registration certificate, and the mandatory traffic insurance policy; if available, a notarized power of attorney is required. For company vehicles, the signature circular, tax certificate, and authorization documents may be requested. The transfer tax is calculated on the higher of the declared sale price and the current comprehensive insurance value; put this figure in the expense table from the start.

Is installment sales through a dealership an alternative?

If you do not want to handle the promissory note, the contract, and the lien yourself, there are companies that do this professionally. The typical setup these companies offer is as follows: 50% down payment for 2006-2012 model vehicles, 30% for 2012 and newer models, terms of 12-48 months, a three-month deferral, and a balloon payment option; a system with no bank and no guarantor. Selling to those with low credit scores and a fast application process are the most talked-about features of this channel. I should not fail to mention that these figures come from the companies' own promotional pages, meaning they are marketing content; conditions vary from company to company.

The balance here is this: not every promissory note vehicle sale is safe; but it can be safe if done with the right, professional, and transparent company. The target audience of these companies is generally people who cannot obtain bank credit, and the risk concentrates in this segment; it is necessary to question whether buyers of vehicles on installments can truly manage the financial burden. From the vehicle owner's perspective, another option is consignment sale: the dealership manages the process, but the vehicle owner loses control over pricing and the sale. Choosing between keeping control in an installment sale and handing it over to a dealership is, in fact, a choice between managing the risk and skillfully shifting it elsewhere.

Conclusion: in promissory note sales, safety comes from design

Selling a vehicle with a promissory note or in installments is a transaction that works when set up correctly and leaves the seller under a burden of debt and penalties when set up incorrectly. Never skip these three things: have the promissory note approved at the notary, write the payment plan and default clauses into the contract completely, and set the transfer time with your Motor Vehicles Tax and traffic fine obligations in mind. Let the security you hold be a registration certificate, a lien, or a high-value promissory note; whatever it is, know the difference between something sitting on paper and something that is truly collectible. As someone who has done this work for many years, let me say: in this business, the winner is the party who asks the most questions before signing.