Car Affordability Calculator
Enter your income and credit score. The calculator caps your loan payment at 10% of estimated take-home pay, applies your credit tier's average APR from Experian's Q1 2026 data, and converts that into a maximum sticker price and out-the-door budget.
We estimate take-home pay at $4,514/month. Know your real paycheck? Switch to monthly take-home for a tighter answer.
10%+ down avoids starting the loan underwater
Optional — what your current car nets after loan payoff
Your used car budget (10% of take-home rule)
$22,408
vehicle price · about $24,777 out the door with tax and fees
$451
Loan payment
$472
Running costs
$923
Total / month
20.4%
of take-home pay
$21,777 financed over 60 months at 8.9% APR · $5,283 total interest · strict 20/4/10 budget: $2,304
- Total vehicle costs would be 20% of take-home pay — above the 20% ceiling. Consider a lower price, a bigger down payment, or improving your rate before buying.
Worked example: $65,000 salary, good credit, used car
On a $65,000 salary (about $4,514/month take-home), the 10% rule caps your loan payment at $451/month. With good credit (661–780 score, 8.9% APR average for used-car loans), a 60-month term, and $3,000 down, that payment supports a used car priced up to $22,408 — roughly $24,777 out the door after ~7% sales tax and typical fees. Expect total monthly vehicle costs near $923 once insurance, fuel, maintenance, and registration are added.
| Estimated monthly take-home | $4,514 |
|---|---|
| Max loan payment (10% rule) | $451/mo |
| APR (Prime, used) | 8.9% |
| Loan term | 60 months |
| Down payment | $3,000 |
| Max vehicle price | $22,408 |
| Max out-the-door price (tax + fees) | $24,777 |
| Amount financed | $21,777 |
| Total interest over the loan | $5,283 |
| Insurance, fuel, upkeep, registration | $472/mo |
| Total monthly vehicle cost | $923 (20.4% of take-home) |
Rates: Experian State of the Automotive Finance Market, data as of August 2026. Running costs derived from AAA Your Driving Costs 2025. Assumes ~7% combined sales tax and $800 title/registration/doc fees. Budgeting guideline — not a lending decision or approval.
The Two Affordability Rules (They Are Not the Same)
Most affordability advice blurs two different rules together. They answer different questions and produce very different budgets, so this page keeps them separate:
The practical rule (calculator default)
Loan payment ≤ 10% of monthly take-home pay, with total vehicle costs (payment + insurance + fuel + maintenance + registration) inside 15–20% of take-home. This is the realistic ceiling for most buyers: on a $65,000 salary it supports about $22,408 for a used car at today's average rates.
The strict 20/4/10 rule
20% down, 48-month maximum term, and TOTAL transportation costs under 10% of gross income — not just the payment. It is deliberately conservative: the same $65,000 salary yields about $2,304. Use it if you are aggressively saving, carrying other debt, or want maximum financial safety margin.
Affordability is not lender approval
Lenders approve loans based on debt-to-income and credit history, and will routinely approve payments well beyond both rules. Approval tells you what a lender will risk — not what your budget can absorb while still saving.
Car Affordability by Salary
Every row uses the same math as the calculator: payment capped at 10% of estimated take-home, 60-month loan, 10% down, at Experian's average APRs (6.39% new / 11.43% used, Q1 2026).
| Annual Salary | Take-Home/Mo* | Max Payment (10%) | Used-Car Budget | New-Car Budget | Strict 20/4/10 |
|---|---|---|---|---|---|
| $30,000 | $2,100 | $210 | $9,035 | $10,269 | — |
| $40,000 | $2,800 | $280 | $12,322 | $13,967 | — |
| $50,000 | $3,500 | $350 | $15,608 | $17,665 | — |
| $60,000 | $4,200 | $420 | $18,895 | $21,363 | $316 |
| $70,000 | $4,822 | $482 | $21,806 | $24,639 | $3,992 |
| $80,000 | $5,422 | $542 | $24,623 | $27,808 | $7,668 |
| $100,000 | $6,556 | $656 | $29,975 | $33,831 | $15,021 |
| $120,000 | $7,600 | $760 | $34,858 | $39,325 | $22,374 |
| $150,000 | $9,000 | $900 | $41,431 | $46,721 | $33,402 |
*Estimated take-home (federal + FICA + median state tax approximation, single filer). Budgets assume 60-month loan, 10% down, ~7% sales tax and $800 fees rolled in. Strict column: 20% down, 48 months, total costs ≤10% of gross — “—” means running costs alone exceed the 10% gross cap at that income.
Deeper dives by income: $30k salary · $40k salary · $50k salary · $60k salary · $70k salary · $80k salary · $100k salary · $120k salary · $150k salary
How Credit Score Changes Your Budget
The same $65,000 income and the same $451/month payment buy very different cars depending on the APR your credit tier gets (used car, 60 months, $3,000 down):
| Credit Tier (Experian) | Score | New APR | Used APR | Used Budget @ $65k |
|---|---|---|---|---|
| Excellent (Super prime) | 781+ | 4.55% | 6.3% | $23,702 |
| Good (Prime) | 661–780 | 6.23% | 8.9%† | $22,408 |
| Fair (Near prime) | 601–660 | 9.67% | 13.7%† | $20,292 |
| Rebuilding (Subprime) | 600 or below | 13.44% | 18.9%† | $18,339 |
APRs: Experian State of the Automotive Finance Market, Q1 2026. †Used-tier mid-range rates are CarWhere interpolations between Experian's published endpoints (6.30% super prime, 21.77% deep subprime).
The spread between excellent and rebuilding credit is $5,363 of car for the identical payment. If your score is near a tier boundary, improving it before you shop often beats any discount you can negotiate.
The True Monthly Cost of Owning a Car
AAA puts the full annual cost of owning a new car at $11,577 (2025, 15,000 miles/year) — roughly $965 a month once depreciation and finance charges are included. Beyond the loan payment, budget for:
This is why the calculator reports a total monthly cost, not just a payment: a $451 payment is really a $923/month commitment. Depreciation is the largest hidden cost of all — AAA measured $4,334/year on average for new vehicles.
What Cars Cost Right Now (August 2026)
$49,855
Avg new-car transaction price
KBB, July 2026
$770/mo
Avg new-car payment
Experian, Q1 2026
$531/mo
Avg used-car payment
Experian, Q1 2026
6.39% / 11.43%
Avg APR (new / used)
Experian, Q1 2026
The average new car now transacts near $49,855 — which the salary table above says requires roughly a $150,000 income under the 10% rule. The average buyer is stretching; the tables here are what the math actually supports.
What Verified Buyers Paid, by Budget Band
From verified buyer-submitted deals on CarWhere — real transaction prices, not listings — here is how much negotiating room buyers found in each budget band:
| Selling-Price Band | Verified Deals | Avg Discount off MSRP |
|---|---|---|
| Under $25,000 | 80 | 7.3% |
| $25,000–$35,000 | 583 | 6.3% |
| $35,000–$50,000 | 805 | 6.6% |
| $50,000–$75,000 | 897 | 5.8% |
Discount = (MSRP − selling price) / MSRP, including manufacturer rebates; excludes taxes and fees. Deduplicated buyer submissions, updated continuously.
Loan Term: The Payment Trap
Stretching the term makes any car “affordable” by payment — and more expensive in total. Financing $21,777 at 8.9% APR (the default scenario above):
| Term | Monthly Payment | Total Interest |
|---|---|---|
| 36 months | $691 | $3,099 |
| 48 months | $541 | $4,191 |
| 60 months (recommended ceiling) | $451 | $5,283 |
| 72 months ⚠ | $391 | $6,375 |
| 84 months ⚠ | $349 | $7,539 |
The 84-month payment looks $102 cheaper than the 60-month one, but costs $2,256 more in interest — and leaves you underwater on the loan for most of its life. If only a 72–84 month term makes the payment fit, the car does not fit the budget.
Common Mistakes to Avoid
Shopping by monthly payment alone
Dealers can hit any payment number by stretching the term. Negotiate the out-the-door price first; the payment follows from price, rate, and term.
Budgeting only for the payment
Insurance, fuel, upkeep, and registration add roughly $472/month (AAA-derived). Your real commitment is the total, not the payment.
Zero down on a fast-depreciating car
You start underwater and stay there for years. Target 20% down new, 10% used — or pick a cheaper car.
Treating loan approval as affordability
Lenders approve on debt-to-income risk, not your savings goals. Approval for an $850 payment does not make an $850 payment wise.
Financing 72–84 months to "afford" more car
Longer terms add thousands in interest and extend negative equity. 60 months is the practical ceiling; 48 is the conservative one.
Letting the trade-in muddy the deal
Negotiate the price of the car you are buying and the value of your trade separately, or an inflated trade number can hide an inflated price.
New vs. Used at the Same Budget
Rates change this trade-off more than most buyers expect: used-car loans average 11.43% APR versus 6.39% for new (Experian, Q1 2026), which is why the salary table's new-car budgets are higher than its used-car budgets for the same payment. Used still usually wins on total cost because the first owner absorbed the steepest depreciation — but a manufacturer-subsidized low-APR offer on a new car can close most of the gap.
Buy new if…
- You qualify for promotional 0–3.9% APR financing
- You plan to keep the car 8+ years
- You want current safety tech and a full warranty
Buy used if…
- You want maximum car for the payment despite the higher APR
- You want someone else to absorb first-years depreciation
- A 2–4 year old CPO car with remaining warranty covers your needs
You Know Your Number. Now See the Market.
Your budget only matters against real prices. See what verified buyers actually paid for the models in your range — then, when a dealer quotes you, check the quote against the data before you sign.
Frequently Asked Questions
How much car can I afford based on my salary?
Keep your loan payment under 10% of monthly take-home pay, and total vehicle costs (payment, insurance, fuel, maintenance) inside 15–20% of take-home. On a $50,000 salary that is about $350/month, which supports roughly a $15,608 used car or $17,665 new car at current average rates (Experian, Q1 2026). On a $100,000 salary: about $656/month, or roughly $29,975 used / $33,831 new.
What is the 20/4/10 rule for buying a car?
The 20/4/10 rule is the conservative benchmark: put at least 20% down, finance for no more than 4 years (48 months), and keep TOTAL transportation costs — payment plus insurance, fuel, and upkeep — under 10% of gross income. It yields a far smaller budget than the 10%-of-take-home payment rule — on a $65,000 salary, essentially nothing, because average insurance, fuel, and upkeep already consume the 10%-of-gross allowance versus $22,408. Most buyers treat 20/4/10 as the aspiration and the 10%-of-take-home rule as the practical ceiling.
How much should I spend on a car if I make $50,000 a year?
About $3,500/month take-home supports a $350/month payment under the 10% rule. At the average used-car rate (11.43% APR, Experian Q1 2026), 60 months, and 10% down, that is a used car up to about $15,608, or $17,665 new at the 6.39% new-car average. Under the strict 20/4/10 rule there is essentially no financed-car budget at this income once average running costs are counted — treat the 10% rule as your ceiling and buy below it if you can.
How much should I spend on a car if I make $100,000 a year?
About $6,556/month take-home supports a $656/month payment. That is roughly a $29,975 used car or $33,831 new car at current average rates with 10% down over 60 months — below the average new-car transaction price of $49,855 (Kelley Blue Book, July 2026), which is why many six-figure buyers still shop used.
How does my credit score change how much car I can afford?
Your score sets your APR. Experian's Q1 2026 data: super-prime borrowers (781+) average 4.55% on new-car loans while subprime (600 or below) average 13.44% — and used-car rates run higher still. On a $65,000 income, that spread is the difference between a $23,702 and a $18,339 used-car budget for the same monthly payment.
Is a 60-month or 72-month auto loan better?
60 months is the practical ceiling. A 72-month loan lowers the payment but adds interest and keeps you underwater (owing more than the car is worth) longer. Financing $21,777 at 8.9% costs about $5,283 in interest over 60 months versus $6,375 over 72. If you need 72–84 months to make the payment work, the car is too expensive for the budget.
How much should my down payment be?
Target 20% down on a new car and 10% on a used car. New cars depreciate fastest in the first years, so smaller down payments leave you owing more than the car is worth. If you cannot put anything down, that is usually a signal to pick a less expensive car rather than a longer loan.
What does a car actually cost per month beyond the payment?
Plan on roughly $472/month on top of the loan payment: about $141 for full-coverage insurance and $68 for license/registration/taxes (AAA, 2025), plus fuel at 13 cents per mile and maintenance. AAA puts the full cost of owning a new car at $11,577 per year including depreciation and finance charges.
If a lender approves me for more, can I afford more?
No. Lender approval is a risk decision based on your debt-to-income ratio and credit history — it routinely approves payments far above the 10%-of-take-home guideline. Affordability is a budgeting decision: what you can pay while still saving and absorbing surprises. Being approved for a bigger loan does not make the bigger loan a good idea.
The Bottom Line
Cap the payment at 10% of take-home, keep total vehicle costs inside 15–20%, put real money down, and stay at 60 months or less. If the numbers only work at 84 months with nothing down, the answer is a cheaper car — a car is a depreciating asset, and every dollar not spent on transportation is a dollar that can compound somewhere else.
Sources: Experian State of the Automotive Finance Market (Q1 2026); Kelley Blue Book/Cox Automotive average transaction price (July 2026); AAA Your Driving Costs (2025). Verified buyer pricing: CarWhere deal submissions.