Hong Life CalculatorsUnderstanding the credit card cash advance cost calculator — concept and principle
A cash advance is cash taken from a credit card, at an ATM, a bank counter or through a cash-like transaction. It is one of the most expensive ways to borrow because two charges apply at once: an upfront fee and interest that starts on the day you take the money. This calculator shows the total cost for a given number of days and what that cost equals as a yearly rate.
How it is calculated
- Fee = the larger of amount × fee % and the minimum fee
- Interest = amount × APR ÷ 365 × days (daily interest from day one, no grace period)
- Total cost = fee + interest
- Repay = amount + total cost
- Effective yearly cost = total cost ÷ amount ÷ (days ÷ 365)
Card issuers differ in details, for example some use a daily rate of APR ÷ 360 or compound daily; this calculator uses simple daily interest.
The principle
On purchases, most cards give a grace period: pay the full statement balance by the due date and no interest is charged. Cash advances usually have no grace period, and the cash APR is often higher than the purchase APR. The fee is charged once, so the shorter the borrowing, the more it dominates; spread over a single month, a 5% fee alone is equivalent to about 60% a year. That is why the effective rate can be several times the quoted APR.
Worked example
- Cash advance $1,000, fee 5% with a $10 minimum, APR 29.99%, repaid after 30 days.
- Fee = max(1,000 × 5%, 10) = $50.00.
- Interest = 1,000 × 0.2999 ÷ 365 × 30 ≈ $24.65.
- Total cost = 50 + 24.65 = $74.65; you repay $1,074.65.
- Effective yearly cost = 74.65 ÷ 1,000 ÷ (30 ÷ 365) ≈ 90.8%.
How to read the result
Compare the effective rate with alternatives: an arranged overdraft, a personal loan, a pay advance from an employer or simply delaying the expense. Even repaying in one week leaves you paying the whole fee. If you already carry a purchase balance, check how your issuer allocates payments; in the US, amounts paid above the minimum must go to the highest-APR balance first, but the minimum payment can be applied to lower-rate balances.
Common mistakes
- Assuming the grace period on purchases also covers cash.
- Forgetting ATM operator fees and foreign transaction fees abroad.
- Not realising that gambling chips, money transfers and some cryptocurrency purchases may be treated as cash advances.
Frequently asked questions
How much does a $1,000 cash advance for 30 days cost?
With a 5% fee and a 29.99% APR, about $74.65.
Does a cash advance hurt my credit score?
The advance itself is not reported separately, but it raises your balance and credit utilisation, which can lower the score.
Is there any way to avoid interest?
Not on most cards; repaying immediately only minimises the daily interest, not the fee.
Sources: Consumer Financial Protection Bureau (CFPB), consumer guidance on credit card cash advances · Credit Card Accountability Responsibility and Disclosure (CARD) Act of 2009