Finance Charge Calculator
How much does borrowing really cost? Compute the Truth in Lending finance charge for installment loans, credit cards, and single-payment loans — interest plus fees, in dollars.
Estimate only — not professional financial advice. Results are educational estimates; lender methods and fee classifications can differ.Result
Estimate only — not professional financial advice. Actual lender figures may differ due to day-count conventions and fee classification.Methodology
This calculator follows the Truth in Lending Act (Regulation Z, 12 CFR 1026.4): the finance charge is the cost of consumer credit as a dollar amount — interest plus charges imposed by the creditor as a condition of the credit.
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Frequently asked questions
What is a finance charge?
Under the Truth in Lending Act (Regulation Z, 12 CFR 1026.4), the finance charge is the cost of consumer credit expressed as a dollar amount. It includes interest plus any charge the creditor imposes as a condition of the credit, such as origination fees. It does not include charges of a type payable in a comparable cash transaction.
How is the finance charge calculated on an installment loan?
Finance charge = total of all payments - amount financed. Example: borrow $10,000 at 12% APR for 36 months. The monthly payment is $332.14, so the total of payments is $11,957.15. Finance charge = $11,957.15 - $10,000 = $1,957.15.
What is the difference between APR and a finance charge?
APR is the cost of credit expressed as a yearly rate; the finance charge is the same cost expressed in dollars. In the $10,000 / 12% / 36-month example, the APR is 12% and the finance charge is $1,957.15. Two loans can share the same APR but have different finance charges if their amounts or terms differ.
How do credit card finance charges use the average daily balance?
Most cards use the periodic-rate method: finance charge = average daily balance x (APR / 365) x days in the billing cycle. Example: a $2,000 balance for 14 days, then $1,200 for 16 days after an $800 payment, at 24% APR over a 30-day cycle. Average daily balance = $1,573.33, and the finance charge = $1,573.33 x 0.24 / 365 x 30 = $31.04.
Which fees count as finance charges under Regulation Z?
Origination fees, loan-processing fees, required credit insurance, and mortgage broker fees generally count as finance charges. Charges excluded include fees payable in a comparable cash transaction (for example, a standard appraisal fee you would pay with cash too) and certain third-party closing costs the creditor does not require or retain. When in doubt, this calculator lets you add any fee either upfront or financed and shows the effect both ways.
How does a $300 origination fee change the finance charge?
It depends on how the fee is paid. Financed into the loan: amount financed becomes $10,300 at 12% for 36 months, monthly payment $342.11, total $12,315.87, finance charge = $12,315.87 - $10,300 = $2,015.87, and the effective APR rises to 14.07%. Paid upfront out of pocket: the finance charge becomes $1,957.15 + $300 = $2,257.15 and the effective APR is 14.13%.
What is the effective APR and why is it higher than the nominal rate?
The effective APR (actuarial method) is the rate that equates what you actually receive to your payment stream. Fees reduce what you receive without reducing your payments, so the true rate rises. Example: $10,000 at 12% nominal for 36 months with a $300 upfront fee means you net $9,700 while paying $332.14 per month - the effective APR is 14.13%, not 12%.
Can the finance charge be non-zero on a 0% APR loan?
Yes. Fees alone create a finance charge. Example: $10,000 at 0% APR for 36 months with a $300 upfront fee. The monthly payment is $277.78, the total paid is $10,000.00, and the finance charge is $300.00 - the fee itself. The effective APR in this case is 1.99%.
How is the finance charge computed on a single-payment loan?
Multiply principal x APR x years. Example: $5,000 at 8% APR repaid in one lump sum after 1 year. Finance charge = $5,000 x 0.08 x 1 = $400.00, so the total due is $5,400.00.
What is a quick credit card finance charge example?
A $1,000 balance at 18% APR over a 30-day billing cycle with no payments: finance charge = $1,000 x 0.18 / 365 x 30 = $14.79, making the new balance $1,014.79.
Is this the same as an electric charge converter (coulombs)?
No - this is an explicit boundary. This calculator covers finance charges under the Truth in Lending Act: the dollar cost of borrowing (interest plus credit fees). It does not convert units of electric charge such as coulombs, ampere-hours, or elementary charges. For unit conversion of electric charge, use a dedicated charge converter tool instead.
Is this calculator financial advice?
No. Results are estimates for education and comparison shopping only, not professional financial advice. Lenders' exact methods (day-count conventions, fee classifications under Regulation Z) can differ slightly. Consult a licensed financial professional before signing any credit agreement.
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