Annual Ownership Calculation: From MTV to Depreciation, the Real Cost

A car's annual cost of ownership is a picture that goes far beyond the purchase price: when MTV, traffic insurance and comprehensive insurance premiums, fuel, periodic maintenance, tire replacement, inspection, and second-hand depreciation all come together, the real figure is many times over the amount that quietly flows out of most drivers' pockets every month. Rather than giving current prices, this guide teaches a method: it offers a step-by-step method so you can calculate each of these items one by one for your own car and work out the annual total and the cost per kilometer.

What Items Make Up the Annual Cost of Ownership?

The most common calculation mistake I encounter in my thirty-year career is this: people look at the car's price, look at the monthly installment, and ignore the rest. Yet the total cost of ownership - TCO in economic terms - is the sum of the purchase price and operating expenses, and the bleeding item is always the latter. Grouping the items that need to be tracked regularly into two categories makes your job easier.

Fixed costs arrive whether you use the car or not: depreciation, insurance and comprehensive coverage, inspection, MTV, and half of maintenance can be counted here. Usage costs, on the other hand, are directly tied to the steering wheel: fuel, the remaining maintenance share, repairs, parking, tolls, fines, and washing. Keeping the loan installment on a separate line is a sensible choice; the principal within the installment is not actually a consumed expense - your money is moving from a debt to an asset. Budgets that fail to account for this detail make the car seem more expensive or cheaper than it is - both are misleading.

If you want to reduce expenses to a single number after dividing them into two groups, cost per kilometer is the most honest measure: divide your total annual expenses by your annual kilometers. For a car that drives 15,000 km a year with annual expenses of 50,000 TL, this means 3.33 TL per kilometer. When you make the same calculation every year, you see down to the tire whether your car is getting more expensive.

How Is MTV Calculated?

The Motor Vehicle Tax is the cornerstone of the calculation because its components are the most predictable item. Three variables are considered: the vehicle's type (car, motorcycle, truck, etc.), age, and engine displacement. The practical method is simple - read the displacement and model year from the registration certificate, determine your registration date, and find the relevant row in the tax tariff. The official calculation can be made with the calculation tool in the Revenue Administration's Digital Tax Office; there you simply select the vehicle type, its age, and the engine displacement.

As the vehicle ages, the tariff bracket it falls under also changes; meaning the same engine size does not generate the same tax in vehicles of different ages. The MTV is paid in two installments - half of the annual amount in the first six months, and the remainder in the second half of the year. Remember that in your budget it does not occupy space as a one-time expense, but as an expense that echoes twice a year.

What changed in 2026?

With the decision taken in December 2025, starting from January 1, 2026, MTV amounts were increased by 18.95% compared to the previous year, and the new tariffs were redefined by the 2026 Series No. General Communiqué of the Tax Procedure Law. Different increase rates and amounts are circulating on the internet; it is useful to know that these tables sometimes do not match the official communiqué. That is why the basis of your calculation should always be the official communiqué and the tax office's own calculation tool. This is a sentence I will never tire of repeating: hearsay tariffs in this business show up at the end of the year like a bill.

What Determines the Traffic Insurance and Comprehensive Insurance Premium?

Compulsory traffic insurance premiums are determined within the framework of the Türkiye Insurance Association's tariffs and directives, but under the same tariff two of your neighbors can pay very different premiums. That is because the premium is not the price of a vehicle, but the price of a risk profile. The main factors affecting it are:

• Vehicle type and model, and the vehicle's damage record
• The driver's traffic history - that is, the claim-free status
• The province where the plate is registered; premiums rise in cities with high accident rates
• The intended use of the vehicle

Comprehensive insurance (Kasko), unlike mandatory insurance, is optional, but the factors affecting its premium work largely with the same logic, with a few additional variables: the vehicle's damage history and number of claims, the city where it is registered for traffic, brand and model, vehicle age, the driver's age and experience behind the wheel. Since new model vehicles have a high Kasko value, their premium is also high; in large cities, traffic density and accident rates are added on top of the premium. In the past, Kasko was thought of as a fixed item renewed once a year; now we see premiums being fine-tuned according to individual risk profiles. It is healthier to plan the insurance item in your budget not as a fixed number, but as an annually changing range.

How to Calculate the Fuel and Maintenance Budget?

Fuel is the item with the clearest calculation; its formula is one line: annual kilometers x (consumption per 100 km / 100) x price per liter. For a gasoline vehicle that drives 15,000 km a year, burns 7 liters per 100 kilometers, and pays 45 TL per liter, this calculation comes to approximately 47,250 TL. The numbers change, the method does not - read your own consumption as a real value from your fuel receipts, not from the catalog value. Every colleague of mine knows the difference between catalog consumption and real-world consumption; those who patiently collect receipts know it.

Operating character depending on fuel type

Different fuel types enter the same formula with different characteristics. Gasoline vehicles mean high fuel costs and mid-level maintenance. Diesel has moderate fuel costs but a high maintenance burden - components such as the DPF and turbo cause expenses over time; on long journeys, however, it is efficient. With LPG, fuel is cheap but the conversion cost is paid upfront. With electric vehicles, operating costs are low, but the purchase price is high and charging infrastructure is still a planning issue.

How to Manage the Maintenance Budget

The most honest data on maintenance is your own history: gather all maintenance records from the previous year, anticipate periodic needs, and reduce this to an annual amount. Categorizing every service receipt - fuel, maintenance, repair, tires - turns into an operating cost model; many people used to do this with pen and paper, but today apps that track fuel and expenses do the same job. Regular maintenance also has a return: clean oil and air filters and regular engine maintenance can provide fuel savings of around 4% . Those who find a small saving unimpressive should look at the total of their annual fuel bill.

Tire Cost: Lifespan Converted into a Budget

Tires are an item forgotten in most budgets but one that looks quite real when spread across years. According to manufacturer data, a tire can serve for 5-10 years or 40,000-80,000 km; within this wide range, production quality and tread depth determine the share. Observations in the second-hand market indicate that many tires practically 40,000-60,000 km show a need for replacement; driver statistics put the average replacement mileage above this. Tires also have a shelf life counted from their production date; a tire not stored under recommended conditions reaches the end of this period much sooner.

The cleanest way to budget is to turn replacement into a predictable annual expense: divide the total cost of the set by its expected lifespan in kilometers and multiply by the kilometers you cover each year. A vehicle doing 15,000 km per year renews a set rated for 50,000 km every three years; when you divide the cost of the set by three and put it in your budget each year, no surprise hits your pocket when replacement time comes. Roadside assistance is not only about kilometers either - a tire change takes between thirty minutes and an hour, but aging signs such as cracking and hardening also determine the timing of replacement before tread depth does.

How Is Depreciation Calculated?

Depreciation is one of the quietest and largest items in your account; it goes unnoticed because no money leaves your wallet, yet the value of your asset erodes every year. Two methods are used for budgeting: calculating the difference between the car's purchase and probable sale price, or applying an annual estimate of 10-15%. For example, assuming 12% annually for a 500,000 TL vehicle means roughly 60,000 TL in depreciation - this amount can exceed the same car's annual fuel cost. Some calculation tools do not include depreciation at all and note that the result is not a complete economic TCO; if you leave this item out of your own table, know what you are measuring.

Post-accident loss of value

It is a concept separate from depreciation: the drop in the vehicle's second-hand market value after an accident. The calculation is determined by the Insurance Information and Monitoring Center; the process takes into account the vehicle's age, mileage, and replaced parts. The legal method's formula rests on two elements: the second-hand market sale price on the date of the accident and a coefficient that varies according to the extent of the damage - between 2% and 25% . The same damage produces different loss of value across different brands and models; in the eyes of a second-hand buyer, a repaired door is not the same question mark in every car. In practice, the calculation is substantiated with an expert appraisal report, service invoices, photographs, and the vehicle's history records. For a claim, the fault situation, the vehicle not having been previously damaged, age and mileage, repair quality, and policy and legal conditions are decisive.

Preparing Your Own Annual Cost Table: Step by Step

Combining the items above into a single table is the shortest way to see your vehicle's true bill. The method consists of the following steps:

1. Motor vehicle tax (MTV): get the annual amount from the official calculation tool using the engine displacement and model year on the registration certificate.
2. Insurance and comprehensive coverage: write down the premiums you paid last year; if your no-claims status changed, factor in that it will change this year.
3. Fuel: apply the formula of annual km x (consumption/100) x liter price using your own receipt data.
4. Maintenance and inspection: gather last year's records, add periodic needs; keep the inspection fee on a separate line.
5. Tires: divide the cost of the set by the expected lifetime mileage, and write the annual share into the budget.
6. Depreciation: apply 10-15% annually to the purchase price, or calculate the difference with the current second-hand value.
7. Divide the total by the annual mileage; your cost per kilometer is in your hands.

A sample table prepared step by step gives an idea of what the table should look like. The figures are estimates and date-dependent; what really matters are the column headings.

* Sample figures are estimates and date-dependent; you should refill the table with your own values. Since the loan installment's principal portion is not an expense, it is best to keep it outside the table in a separate budget line.

One final note: update the table on the same dates each year. When fixed items - MTV, premiums, inspection - are tracked along with annual increases, budget planning turns from guesswork into accounting. Thirty years ago there were those who tracked this in a cash notebook; today the same notebook's screen has changed, but the method has not.

Sources

• Motor Vehicle Tax Calculation - Digital Tax Office
• MTV Calculation - TURMOB
• Motor Vehicle Tax Amounts to Be Applied in 2026 - Verginet
• How Are Traffic Insurance Prices Determined?
• Factors Affecting Comprehensive Insurance Premiums - Fiba Sigorta
• Vehicle Ownership Cost Calculation Guide | Fuel Calculator
• Vehicle Monthly Cost Calculation | Hesapica
• Car Expense Calculator - Autocosts
• How Much Is a Vehicle's Average Annual Expense? - sahibinden Oto360
• Vehicle Tire Life - Continental
• Tire Use and Shelf Life - Bridgestone
• Post-Accident Diminished Value - HDI Sigorta
• Vehicle Diminished Value Calculation