CalculationTime

Auto Loan Calculator

Estimate a car loan payment from vehicle price, down payment, trade-in, sales tax, fees, interest rate and loan term.

Live math canvas

Your numbers, formula and explanation together

Auto Loan Calculator: 656.82/month. 33,250.00 financed over 60 months at 6.9%. Tax 2,450.00 at 7%; fees 800.00; cash/trade credit 5,000.00. Total interest about 6,159.33; loan-to-price 95.0%.

Formula applied

The exact method behind this answer

CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.

Taxable amount = max(0, vehicle price − trade-in value). Sales tax = taxable amount × tax rate ÷ 100. Amount financed = vehicle price + sales tax + fees − down payment − trade-in value. Monthly payment = P × r(1+r)^n ÷ ((1+r)^n − 1), where P is amount financed, r is the monthly interest rate and n is months. If the rate is 0%, payment = P ÷ n.
  1. Apply the formulaTaxable amount = max(0, vehicle price − trade-in value). Sales tax = taxable amount × tax rate ÷ 100. Amount financed = vehicle price + sales tax + fees − down payment − trade-in value. Monthly payment = P × r(1+r)^n ÷ ((1+r)^n − 1), where P is amount financed, r is the monthly interest rate and n is months. If the rate is 0%, payment = P ÷ n.656.82/month33,250.00 financed over 60 months at 6.9%. Tax 2,450.00 at 7%; fees 800.00; cash/trade credit 5,000.00. Total interest about 6,159.33; loan-to-price 95.0%.

Your live breakdown

Current inputs in the calculation

These values come from the controls above and update when the calculator changes.

Vehicle price
35,000 currency
Sticker, negotiated or quoted vehicle price before trade-in, tax and fees.
Down payment
5,000 currency
Cash paid upfront. Keep rebates separate unless the lender treats them the same way.
Trade-in value
0 currency
Estimated credit for a traded vehicle. Enter 0 if there is no trade-in.
Sales tax / GST rate
7 percent
Use the rate that applies to the taxable vehicle amount in your location.
Fees to finance
800 currency
Registration, documentation or lender fees that are rolled into the loan.
Annual interest rate
6.9 percent
Nominal annual rate used for the monthly payment estimate.
Loan term
60 months
Number of monthly payments. Common auto terms range from 36 to 84 months.
Extra monthly payment
0 optional currency
Optional extra principal payment for a simple payoff comparison.

Resulting answer

656.82/month

33,250.00 financed over 60 months at 6.9%. Tax 2,450.00 at 7%; fees 800.00; cash/trade credit 5,000.00. Total interest about 6,159.33; loan-to-price 95.0%.

Answer
656.82/month
Live support
33,250.00 financed over 60 months at 6.9%. Tax 2,450.00 at 7%; fees 800.00; cash/trade credit 5,000.00. Total interest about 6,159.33; loan-to-price 95.0%.

Assumptions used

What this answer assumes

Principal-and-interest estimate only. Confirm tax treatment, APR, fees and repayment rules with the lender or official contract.

  • The loan uses a fixed annual interest rate converted to a monthly rate.
  • Sales tax is estimated on vehicle price minus trade-in value; some places tax rebates, trade-ins and fees differently.
  • Fees are treated as financed amounts, not paid separately in cash.
  • Insurance, maintenance, fuel, registration renewals, early payoff penalties, variable rates and lender-specific APR disclosure rules are not included.

Master’s Tip

How to use the result well

Master’s Tip: compare the payment with the amount financed and total interest, not only the monthly number. A longer term can make the payment look comfortable while raising total interest and keeping the car underwater for longer.

Printable record

What belongs in the saved calculation

Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.

Vehicle price
35,000 currency
Sticker, negotiated or quoted vehicle price before trade-in, tax and fees.
Down payment
5,000 currency
Cash paid upfront. Keep rebates separate unless the lender treats them the same way.
Trade-in value
0 currency
Estimated credit for a traded vehicle. Enter 0 if there is no trade-in.
Sales tax / GST rate
7 percent
Use the rate that applies to the taxable vehicle amount in your location.

Embeddable calculator

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Copy a clean iframe version with the required CalculationTime attribution link built in.

Formula

Taxable amount = max(0, vehicle price − trade-in value). Sales tax = taxable amount × tax rate ÷ 100. Amount financed = vehicle price + sales tax + fees − down payment − trade-in value. Monthly payment = P × r(1+r)^n ÷ ((1+r)^n − 1), where P is amount financed, r is the monthly interest rate and n is months. If the rate is 0%, payment = P ÷ n.

Worked example

For a 35,000 vehicle, 5,000 down, no trade-in, 7% tax, 800 financed fees, 6.9% annual interest and 60 months: tax = 35,000 × 0.07 = 2,450. Amount financed = 35,000 + 2,450 + 800 − 5,000 = 33,250. The monthly rate is 0.069 ÷ 12, giving an estimated payment of about 656.84 per month.

Professional note

Master’s Tip: compare the payment with the amount financed and total interest, not only the monthly number. A longer term can make the payment look comfortable while raising total interest and keeping the car underwater for longer.

Regional and unit assumptions

Standard or basis: transparent fixed-rate monthly amortisation. Tax treatment is entered as a simple percentage and may not match local dealer, lender or government rules. Use official lender disclosures for APR, comparison rates and final contract decisions.

Assumptions and limitations

Methodology & Accuracy

How this calculator is checked

CalculationTime pages are built around visible arithmetic: the formula, assumptions, worked example and practical limitations are shown so the result can be checked rather than simply trusted.

Formula used

Taxable amount = max(0, vehicle price − trade-in value). Sales tax = taxable amount × tax rate ÷ 100. Amount financed = vehicle price + sales tax + fees − down payment − trade-in value. Monthly payment = P × r(1+r)^n ÷ ((1+r)^n − 1), where P is amount financed, r is the monthly interest rate and n is months. If the rate is 0%, payment = P ÷ n.

Standard or basis

Standard or basis: transparent fixed-rate monthly amortisation. Tax treatment is entered as a simple percentage and may not match local dealer, lender or government rules. Use official lender disclosures for APR, comparison rates and final contract decisions.

Where a calculator follows a named legal, trade or industry standard, that standard is cited visibly. Otherwise the page uses transparent general arithmetic and states its limits.

Master's Tip

Master’s Tip: compare the payment with the amount financed and total interest, not only the monthly number. A longer term can make the payment look comfortable while raising total interest and keeping the car underwater for longer.

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Questions

How do I calculate an auto loan payment?

Estimate the amount financed after vehicle price, tax, fees, down payment and trade-in, then apply the fixed-rate monthly loan payment formula using the monthly interest rate and number of payments.

Does this auto loan calculator include sales tax?

Yes. It estimates sales tax or GST from the entered tax rate and taxable vehicle amount, then adds that tax to the amount financed. Local rules can tax rebates, trade-ins and fees differently.

Does a longer car loan lower the payment?

Usually yes, because the balance is spread over more months. The tradeoff is that total interest can rise and the loan may stay above the car’s value for longer.

Is the result the same as an APR quote?

No. The calculator uses the entered nominal annual rate for a principal-and-interest estimate. Official APR or comparison-rate disclosures may include certain fees and rules not modelled here.

How should I use the printable auto loan report?

Use it to compare dealer quotes, lender offers or term options. Keep the vehicle price, tax rate, fees, down payment, trade-in and formula visible so the monthly payment can be checked later.

Calculation note

Auto loan calculators translate a vehicle purchase into monthly cash flow. The useful part is not only the payment: it is the paper trail showing price, tax, fees, down payment, trade-in, rate and term before the borrower compares offers.

The payment starts before the formula

A car loan payment depends on the amount financed. That amount can change with negotiated price, sales tax, documentation fees, registration fees, rebates, trade-in credit and cash down. Showing those pieces separately makes the result easier to audit.

Longer terms change the story

A longer loan term can reduce the monthly payment, but it often increases total interest and may leave the borrower owing more than the vehicle is worth for longer. A printable comparison is useful because the lowest payment is not automatically the lowest cost.

Dealer quote, lender quote and contract can differ

Different jurisdictions and lenders may handle taxes, fees, APR disclosures, prepayment and add-ons differently. The calculator is a transparent estimate, not a substitute for the final retail instalment contract or lender disclosure.

Sources and further readingConsumer Financial Protection Bureau: Take control of your auto loanFederal Trade Commission: Buying a new or used car