Auto Loan Calculator 2026
Estimate your monthly payment, total interest, and full amortization. Includes state sales tax, trade‑in, negative equity, and EV tax credits. Updated for March 2026.
Educational Note: This tool provides estimates. Actual loan terms depend on your credit, lender, and vehicle. Past performance does not guarantee future results.
Your Loan Details
Estimate Your Auto Loan
Enter your loan details to see monthly payment, total cost, and amortization.
Estimated Monthly Payment
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Total Cost Breakdown
Monthly Amortization Schedule
| Month | Payment | Principal | Interest | Balance |
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How to Use the Auto Loan Calculator
Our calculator gives you a complete picture of your auto loan costs, including taxes, fees, and trade‑in equity. Enter your vehicle price, down payment, trade‑in details, and loan terms. The tool instantly updates your monthly payment, total interest, and amortization.
March 2026 Auto Loan Rate Trends
As of March 2026, average APRs remain elevated. Use the credit tier buttons to see typical rates based on credit score:
| Credit Tier | FICO Score | New Car APR | Used Car APR |
|---|---|---|---|
| Excellent | 740+ | 5.0% – 6.5% | 6.5% – 7.5% |
| Good | 670–739 | 7.0% – 8.5% | 8.0% – 10.0% |
| Fair | 580–669 | 10.5% – 12.5% | 11.0% – 14.0% |
| Poor | <580 | 13.0% – 18.0% | 15.0% – 20.0% |
Source: Federal Reserve & Experian data, March 2026.
Understanding Negative Equity
If you owe more on your trade‑in than its current value, the difference is added to your new loan. This increases the amount financed and monthly payment. Our calculator handles this automatically.
EV Tax Credits for 2026
The Inflation Reduction Act extended the new EV tax credit. Eligible new electric vehicles may qualify for up to $7,500. The used EV credit expired September 2025, but some states offer their own incentives.
Affordability & Debt‑to‑Income (DTI)
Lenders often use the 15% rule: total monthly vehicle expenses (payment + insurance + fuel) should not exceed 15% of gross monthly income. Our calculator uses payment + existing debts for a simplified DTI estimate.
Extra Payments: How Much Can You Save?
Even small extra monthly payments can dramatically reduce total interest and shorten your loan term. Our extra payment feature shows you the savings in real time.
Frequently Asked Questions
What credit score do I need for the best rate?↓
How does a larger down payment help?↓
What is the difference between APR and interest rate?↓
Can I get a car loan with bad credit?↓
What is the difference between pre‑approval and pre‑qualification?↓
How does leasing compare to buying?↓
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Written by Santosh Paighan
Financial Analyst & Founder
Expert in consumer lending, auto finance, and credit optimization.
