When Will Your Overdraft Limit Run Out?
An overdraft account lets you draw and repay freely within a set limit, which is convenient — but if your usage creeps up every month, you'll eventually run the balance up to the full limit. Once that happens, you can't withdraw any more until you repay part of the principal, which can be inconvenient if you suddenly need cash.
This calculator takes your current limit, balance used, average monthly usage increase, and interest rate to estimate how long until the limit is depleted and how much interest will accumulate by then. Because the balance grows over time, the interest is estimated using the average balance across the period; actual bank interest may differ slightly depending on daily compounding methods.
The closer you get to the limit, the more interest you pay each month. If the depletion point comes out to 3 months or less, it's worth reviewing your spending or repaying part of the principal to create breathing room. If your usage isn't increasing, your account is staying stable and won't hit the limit.
Frequently Asked Questions
Once you reach the limit, you can no longer withdraw more until you repay part of the principal. It isn't a default, but it blocks further access to funds, so knowing the depletion point in advance helps.
Interest is charged daily only on the balance actually used. This calculator estimates the cost using the average balance as it grows toward the limit.
Reduce how much your monthly usage grows, or repay part of the principal whenever you have spare cash to push the depletion point further out.