Car Maintenance Cost by Age: Year-by-Year Budget
How much maintenance costs as a car gets older, year by year and added up over the years you own it — plus a calculator for what keeping your current car longer is likely to cost.
Quick answer
At 12,000 miles a year, CarCalTune's budgeting model puts routine maintenance at about $420/yr for cars 0–3 years old, $600 at 4–7, $840 at 8–11 and $1,080 from year 12 — roughly 3.5¢, 5¢, 7¢ and 9¢ per mile. Over the first 10 years that adds up to about $6,180. These are illustrative planning figures, not quotes or verified national averages.
Result
| Midpoint total | |
| Average per year | |
| Average per month |
How the estimate works
Age factor: 0–3 yr = 0.7 · 4–7 yr = 1.0 · 8–11 yr = 1.4 · 12+ yr = 1.8
Range = midpoint × 0.75 to midpoint × 1.25
This is the same model as our car maintenance cost calculator, applied one year at a time and summed. The calculator above adds up each year from your car's current age to the last year you plan to keep it. The ±25% band is an illustrative allowance, not a measured confidence interval.
Year-by-year maintenance cost and running total
| Car age | Range at 12k mi | Midpoint at 12k mi | Cumulative at 12k mi | Midpoint at 15k mi | Cumulative at 15k mi |
|---|---|---|---|---|---|
| 1 | $315–$525 | $420 | $420 | $525 | $525 |
| 2 | $315–$525 | $420 | $840 | $525 | $1,050 |
| 3 | $315–$525 | $420 | $1,260 | $525 | $1,575 |
| 4 | $450–$750 | $600 | $1,860 | $750 | $2,325 |
| 5 | $450–$750 | $600 | $2,460 | $750 | $3,075 |
| 6 | $450–$750 | $600 | $3,060 | $750 | $3,825 |
| 7 | $450–$750 | $600 | $3,660 | $750 | $4,575 |
| 8 | $630–$1,050 | $840 | $4,500 | $1,050 | $5,625 |
| 9 | $630–$1,050 | $840 | $5,340 | $1,050 | $6,675 |
| 10 | $630–$1,050 | $840 | $6,180 | $1,050 | $7,725 |
| 11 | $630–$1,050 | $840 | $7,020 | $1,050 | $8,775 |
| 12 | $810–$1,350 | $1,080 | $8,100 | $1,350 | $10,125 |
| 13 | $810–$1,350 | $1,080 | $9,180 | $1,350 | $11,475 |
| 14 | $810–$1,350 | $1,080 | $10,260 | $1,350 | $12,825 |
| 15 | $810–$1,350 | $1,080 | $11,340 | $1,350 | $14,175 |
Annual cost by mileage and age
| Miles per year | Age 2 | Age 5 | Age 9 | Age 13 |
|---|---|---|---|---|
| 6,000 | $210 | $300 | $420 | $540 |
| 10,000 | $350 | $500 | $700 | $900 |
| 12,000 | $420 | $600 | $840 | $1,080 |
| 15,000 | $525 | $750 | $1,050 | $1,350 |
| 20,000 | $700 | $1,000 | $1,400 | $1,800 |
Worked example: keep it 5 more years or replace it?
Input: 6-year-old car, keep for 5 more years (ages 6–10), 12,000 miles/year.
- Ages 6–7: factor 1.0 → $600 × 2 = $1,200
- Ages 8–10: factor 1.4 → $840 × 3 = $2,520
- Total midpoint: $1,200 + $2,520 = $3,720 (about $744/yr, $62/month)
- Range: sum of yearly lows to sum of yearly highs
Expected output: $2,790–$4,650 over 5 years (estimate).
For comparison, the same model gives a brand-new car $2,460 over its first five years (ages 1–5). The maintenance difference — about $1,260 over five years — is what you weigh against the price, depreciation and financing of a replacement. A single quoted repair, such as a transmission rebuild, can change that decision on its own.
What drives the climb with age
- Years 0–3: mostly oil changes, filters, rotations and inspections; many failures are covered by the factory warranty. See the oil change cost calculator.
- Years 4–7: first rounds of wear items — brake pads, battery, and the 60k-mile service.
- Years 8–11: parts with longer lives start to come due: alternator, timing belt on belt-driven engines, A/C components.
- Year 12+: more components reaching end of life at once; a well-documented service history matters more than the age itself.
Limitations — what this cannot do
- Routine maintenance and common repairs only — not fuel, insurance, depreciation or financing.
- Age bands are step changes; real costs rise more gradually and vary widely by make and model. For brand differences, see maintenance cost by make.
- Mileage scaling returns zero at zero miles; time-based items (batteries, fluids, rubber parts) still cost money on a car that sits.
- Electric vehicles follow a different pattern; see EV vs gas maintenance.
FAQ
How much does car maintenance cost per year by age?
In CarCalTune's budgeting model at 12,000 miles a year: about $420 (range $315–$525) for cars up to 3 years old, $600 ($450–$750) at 4–7 years, $840 ($630–$1,050) at 8–11 years, and $1,080 ($810–$1,350) from year 12. These are illustrative planning figures, not measured national averages.
How much does maintenance cost over 10 years?
Driving 12,000 miles a year from new, the model's midpoint adds up to $6,180 over the first 10 years (ages 1–10), or $7,725 at 15,000 miles a year.
Is it cheaper to keep an old car than buy a new one?
On maintenance alone, a new car is cheaper to run, but the difference is usually far smaller than a car payment. In this model, keeping a car from year 6 to year 10 costs about $3,720 in maintenance at 12,000 mi/yr — compare that to the depreciation and financing of a replacement, and to any single large repair quote you have.
Why does maintenance cost jump at year 8?
The model raises the age factor from 1.0 to 1.4 at year 8 to reflect wear items that tend to come due together after the warranty period, such as suspension parts, cooling-system components and seals. Your own car may hit those costs earlier or later.
Last updated: October 15, 2026.