Estimate the interest on the part of a card bill you do not pay, and the balance it leaves for the next statement.
Estimate from your own figures
Learn more: Credit card interest, the minimum amount due and your rights.
Frequently asked questions
How is the credit card interest estimated?
Interest ≈ (statement balance − amount you pay) × yearly rate ÷ 365 × days until the next statement. A monthly rate is turned into a yearly one by multiplying by 12.
Why might my bank charge more?
Issuers often charge interest from each purchase date and on new purchases while a balance is unpaid, and add GST. The estimate does not include those.