Overdraft cost calculator

How much will my overdraft cost in pounds and pence?

As an example, the interest cost of borrowing £500 at our different rates of 15%, 25%, and 35% EAR (variable) can be seen below.

7 days30 days60 days
15% EAR£1.34£5.77£11.58
25% EAR£2.15£9.25£18.60
35% EAR£2.91£12.48£25.14

You can also use our calculator tool to work out how much your arranged overdraft borrowing would cost over our three rates based on the size of your overdraft and how long you borrow for.

If you’re looking to apply for an overdraft, you’ll need our personal current account before you apply.

Representative example


The representative APR (variable) is 15%. If you used an arranged overdraft of £1,200 for 30 days, at 15% EAR/APR (variable), it would cost you £13.86 in interest.

Overdraft calculator

It’s worth noting

These figures are to be used as a guide only. We will only charge you interest based on how (or if) you use your overdraft. The costs shown are for overdraft interest only and assume that the borrowing is repaid in the same charging period. If the borrowing is not repaid within the same charging period, the cost of your overdraft may increase over time. This is because we may charge interest on the arranged overdraft interest previously incurred on your account. An unarranged overdraft is when you go over your agreed overdraft limit, or when you go overdrawn without an overdraft in place. Applying for or using an overdraft can affect your credit score.

This calculator assumes that:

  • You remain overdrawn for the number of days and overdraft amount you have selected, without making any payments to your account to reduce your overdraft usage

  • You repay your overdraft at the end of the period you selected

How much could a Starling overdraft cost you?

At a rate of

Looking for more information on our overdraft? Find it on our overdraft page

Apply for a Starling bank account today and enjoy app-based banking at its best.

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