Finance

Business Credit Card Monthly Interest Calculator (5 Years)

Estimate monthly interest on a card balance. This business version uses a 5-year planning term as its starting point.

In real terms, the Monthly interest figure is the cost of carrying the balance for one month, so a payment equal to it does not reduce the balance, and only a larger payment brings the balance down.

Formula

Monthly interest equals balance times annual rate divided by 100 divided by 12.

How it works

Paying only interest leaves the balance unchanged. Paying more than interest reduces the balance.

Worked example

Balance $5,000, annual rate 18%, term 5 years. Monthly interest is $5,000 times 18, divided by 100, divided by 12, which is $75.00 a month. That is the calculator's own output, and it is the same every month because the balance and rate do not change. If the business pays only interest, after 5 years it has paid $4,500 in interest, which is 90% of the balance, and it still owes the original $5,000. Paying more than $75.00 in any month is what finally reduces that balance.

Who this term suits for a business: a new business in its first years that put opening stock or a small equipment deposit on a card and plans to clear the balance from early trading income, not to live on the card.

FAQs

Why is card interest high?
Card rates are usually higher than loan rates, so balances grow quickly if only minimum payments are made.

Is this business calculator exact?
No, it is an estimate for planning only, based on the numbers you enter.

Are these figures financial advice?
No, they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Should a new business carry a $5,000 card balance for 5 years?
Only as a short bridge, not as a 5-year plan: $75 a month feels small, but $4,500 of interest over 5 years is 90% of the balance itself.

Does paying only $75 a month help or hurt a new business's cash flow?
It keeps cash free this month, but it hurts over time, because the $5,000 balance never falls and the interest keeps coming every month.

When should a young business switch from a card to a business loan?
As soon as the balance looks permanent rather than seasonal: a loan usually charges less interest than a card, so compare the two before year 5 ends.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.