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Cash Advance Interest Calculator

Compare the fee charged upfront with interest that may begin on the transaction date, then estimate the total amount needed to pay off the advance.

Method and sources checked August 3, 2026Planning estimateSource note includedNo expert review claimed

Live calculator

Cash advance interest

Estimated payoff$432.86

Advance amount plus upfront fees and estimated interest.

Total borrowing cost$32.86

8.22% of the cash received for this scenario.

Cash advance fee$20.00

$20.00 from the entered percentage.

Interest charge$9.86

30 day estimate at 30% APR.

Timing assumption

Interest usually starts on the transaction date, so this estimate assumes no grace period. Issuer terms and compounding can change the actual charge.

Cost breakdown
Cost componentEstimateHow it is applied
Percentage fee$20.005% of the advance
Cash advance fee$20.00Higher of the percentage fee or entered minimum
ATM fee$3.00Added once when applicable
Interest$9.86Advance x APR / 365 x days

Use this as a planning estimate. Taxes, fees, rates, account terms, provider policies, local rules, and timing can change real-world results.

Quick answer

Cash Advance Interest Calculator: what it calculates

Cash Advance Interest Calculator calculates estimated cash advance payoff from advance amount, fee percentage, minimum fee, aTM fee, cash advance APR, and days until paid. The visible formula is Total cost = max(advance x fee percentage, minimum fee) + ATM fee + advance x (APR / 365) x days.

ResultEstimated cash advance payoff
InputsAdvance amount, Fee percentage, Minimum fee, ATM fee, Cash advance APR, Days until paid
FormulaCash advance cost formula

Formula

Cash advance cost formula

Total cost = max(advance x fee percentage, minimum fee) + ATM fee + advance x (APR / 365) x days

The estimate applies simple daily interest to the advance amount. Issuer terms may compound differently or treat fees as interest-bearing balances.

How to use

Steps

  1. Enter the amount of cash you plan to receive.
  2. Enter the issuer's percentage fee, minimum fee, and any separate ATM fee.
  3. Enter the cash advance APR and the number of days until you expect to pay it off.
  4. Review the upfront fee, interest estimate, total borrowing cost, and estimated payoff amount.

Example

Sample calculation

Advance amount$400
Cash advance fee$20 at 5%
ATM fee$3
InterestAbout $9.86 at 30% APR for 30 days
Estimated payoffAbout $432.86

Calculator use

Best for

  • Compare the fee charged upfront with interest that may begin on the transaction date, then estimate the total amount needed to pay off the advance.
  • Reviewing the visible formula and assumptions before relying on the estimated cash advance payoff.
  • Comparing the output with the sample calculation and benchmark table before using it elsewhere.
  • Personal finance scenarios before changing a budget, loan, savings goal, or purchase plan.

Before relying on it

Check first

  • Using the estimated cash advance payoff before confirming the visible inputs match the same task and context: advance amount, fee percentage, minimum fee, and 3 additional inputs.
  • Ignoring that the estimate applies simple daily interest to the advance amount. Issuer terms may compound differently or treat fees as interest-bearing balances.
  • Skipping the source notes when the formula, benchmark, or warning depends on outside context.
  • Mixing gross income, take-home income, one-time costs, and monthly costs in the same comparison.

Details

What to know before using the result

Fee testPercentage or minimum

The calculator uses the higher of the percentage calculation and the minimum fee entered, then adds a separate ATM fee when applicable.

Interest timingTransaction-date assumption

Cash advance interest often begins on the transaction date instead of receiving the purchase grace period that may apply to other card balances.

Payoff timingDays matter

Shortening the payoff period reduces the time-based interest estimate, but it does not remove fees already charged for taking the advance.

Source notes

References used for this calculator

Consumer Financial Protection Bureau: cash advancesExplains that issuers may charge a cash advance fee and that interest generally starts from the transaction date.Consumer Financial Protection Bureau: grace periodsExplains how purchase grace periods work and notes that cash advances generally do not receive one.

Benchmarks

How to read the result

Percentage fee below minimum: Minimum controls.

Small advances can carry a high effective cost when the minimum fee exceeds the percentage calculation.

Percentage fee above minimum: Percentage controls.

For a larger advance, the percentage calculation can become the larger upfront charge.

Longer payoff period: More interest.

With the same amount and APR, estimated interest rises in direct proportion to the days entered in this simple-interest model.

Calculator accuracy

Methodology and assumptions

Formula

Total cost = max(advance x fee percentage, minimum fee) + ATM fee + advance x (APR / 365) x days

Inputs used

Advance amount, Fee percentage, Minimum fee, ATM fee, Cash advance APR, Days until paid

Limitations

Money results are planning estimates. Actual taxes, account terms, rates, fees, timing, local rules, and provider policies can change the real-world result.

Method and sources checked

August 3, 2026. The documented method, source timing, validity conditions, and reliance limits were checked on this date.

Method provenanceEstimate · toolkitshelf.cash-advance-simple-daily-interest.v1
Maintained by
Toolkit Shelf
Calculation class
Estimate
Method version
toolkitshelf.cash-advance-simple-daily-interest.v1
Source date
Current guidance; accessed August 3, 2026
Source checked
August 3, 2026
Intended audience
Cardholders comparing a self-entered cash advance amount, transaction fees, cash advance APR, and expected payoff timing before using or repaying an advance.
Valid when
The estimate assumes the higher of the entered percentage fee or minimum fee, one entered ATM fee, simple daily interest on the advance amount, and no grace period. Issuer terms, compounding, fee treatment, and payment allocation can change the actual cost.
Reliance boundary
This is not an issuer statement, payoff quote, contract interpretation, fee disclosure, recommendation to borrow, or reconstruction of the issuer's compounding and payment-allocation method.
Data freshness
CFPB guidance on cash advance fees and transaction-date interest was checked on August 3, 2026. The calculator fetches no issuer terms, account balances, or current product pricing.
Cite this page

Toolkit Shelf. Cash Advance Interest Calculator. Page version August 3, 2026. https://toolkitshelf.com/tools/cash-advance-interest-calculator

FAQ

Common questions

How is a cash advance fee calculated?

A card may charge a percentage of the advance or a minimum amount, whichever is higher. A bank or ATM operator may add another fee.

When does cash advance interest start?

Consumer finance guidance says cash advances generally begin accruing interest from the transaction date, without the purchase grace period that may apply to other balances.

Why can a small cash advance be expensive?

A minimum transaction fee and ATM fee can represent a large percentage of a small amount before any daily interest is added.

Is this a final financial decision?

No. Use it for planning and comparison. Real decisions can change after exact rates, balances, fees, taxes, account terms, timing, and personal details are verified.

Why do finance calculators show assumptions?

Small changes in rates, payment timing, taxes, fees, balances, or income can materially change the result, so the assumptions need to stay visible.