How to Compare Arranged Overdrafts
An arranged overdraft is borrowing attached to a current account. The useful comparison is not the representative EAR on its own, but the cash cost of your expected negative balance over the days you actually borrow. Limits and pricing are subject to eligibility, and a low-fee current account can become expensive if overdraft use is regular. This guide converts the overdraft into a realistic annual borrowing line.
Model the amount and days, not just the EAR
Write down a typical negative balance and the number of days it lasts. Someone who is £150 overdrawn for three days before payday has a very different borrowing pattern from someone who sits £1,000 below zero for most of the month. The same quoted EAR produces very different cash costs.
Use the provider's overdraft calculator or tariff where available. Representative APR or EAR is useful for standardised comparison, but the account decision needs the pounds result for your pattern. If the rate is personalised, do not assume the advertised figure is the one you will receive.
Run at least three months: ordinary, stressful and no-overdraft. This shows whether the account remains acceptable when income arrives late or an unexpected bill extends the borrowing period. A decision that works only in the no-overdraft month is fragile if borrowing has occurred repeatedly in the past.
Separate limit, eligibility and price
An overdraft limit is not transferred when you switch banks. The new provider decides whether to offer borrowing and how much, using its own credit and affordability assessment. Do not close the old account until the new banking setup can handle the cash-flow pattern you actually have.
A higher limit is not automatically better. It can provide resilience for short emergencies, but it can also make persistent borrowing easier. Compare the cost at the balance you expect to use, not at the maximum limit the bank might grant.
Interest-free buffers or special terms can materially reduce cost for small borrowing, but only within their conditions. Put the buffer in the worked model and then test what happens one pound or one day beyond it. The cliff edge matters if your balance often sits near the threshold. Recheck this section against a real household example before choosing an account; separate limit, eligibility and price only matters when it changes an actual payment, cost or access need.
Add overdraft cost to the current-account ledger
Suppose Account A is free but your normal overdraft pattern costs £9 a month for six months of the year. That is £54 annual borrowing cost. Account B costs £4 a month but your same borrowing pattern costs only £2 a month for six months. Account B costs £48 in fees plus £12 borrowing, or £60 total. The free account is still slightly cheaper in this example, but the gap is only £6.
Now stress the borrowing to nine months. Account A reaches £81 while Account B reaches £66 including its annual fee. The paid account becomes cheaper. This is why overdraft behaviour belongs in the account comparison rather than in a footnote.
Add rewards only after this cost is known. A £5 monthly reward may offset borrowing on paper, but if the reward requires funding or spending conditions that are difficult while cash flow is tight, use a conservative value rather than the maximum.
Persistent overdraft use is a separate financial signal
If the account is overdrawn for long periods, the question is no longer simply which bank has the better overdraft. Persistent borrowing can indicate a structural gap between income and spending. Compare a repayment plan, lower-cost credit or budget changes as well as account pricing.
Track the date the balance returns above zero each month. If it barely does, calculate the annual interest in pounds and compare that with the cost of an alternative repayment route. The current account should not become invisible long-term debt simply because the balance is shown on the same app as salary.
Ask the provider about support if borrowing is causing difficulty. Banks have obligations around customers in financial difficulty, and early contact can be more useful than repeatedly switching for a different headline overdraft rate. Recheck this section against a real household example before choosing an account; persistent overdraft use is a separate financial signal only matters when it changes an actual payment, cost or access need.
Switching with an overdraft requires sequencing
Before a full switch, ask the destination bank whether an overdraft is available and what limit is actually approved. Do not assume CASS moves the borrowing facility. The switch transfers the eligible account payments and balance mechanics; the credit decision is separate.
Keep enough headroom for the switch week. Salary timing, pending card payments and Direct Debits can make the displayed balance move unexpectedly. If the old account is closed while relying on borrowed funds, understand how any amount owed is settled and what the new provider expects.
After switching, compare the first two or three statements with the model. If actual borrowing is higher than expected, revisit the account choice immediately rather than waiting for an annual review. Recheck this section against a real household example before choosing an account; switching with an overdraft requires sequencing only matters when it changes an actual payment, cost or access need.
BankOfferScout editorial view
We treat overdrafts as borrowing products first and current-account features second. The account that wins without borrowing may lose once a realistic negative balance is priced, so the overdraft line should be visible in every comparison for a household that uses one.
The best metric is annual pounds paid under normal behaviour, supported by a stress case. Representative EAR is a useful disclosure but not the household budget result.
Verify the current overdraft tariff and your personal eligibility immediately before applying or switching. Credit terms and limits can change, and an old limit at another bank is not evidence of what a new provider will offer. Recheck this section against a real household example before choosing an account; bankofferscout editorial view only matters when it changes an actual payment, cost or access need. If the annual borrowing cost is material, save the worked calculation and compare it with the first statement after opening. A gap between forecast and reality is a signal to revisit both the account choice and the underlying cash-flow pattern rather than simply accepting the overdraft as normal.
BankOfferScout editorial view
For overdrafts, a current account that is excellent for a never-overdrawn customer can be expensive for someone who borrows regularly. We therefore treat overdraft cost as a core account cost whenever the customer profile makes borrowing plausible.
With How to Compare Arranged Overdrafts, our conclusion is anchored in usable value, conditions and likely behaviour. We stress-test the comparison for borrowing more often or for longer than expected. If two options are close, simpler conditions and a better fit for normal behaviour can be more valuable than a marginal numerical edge that is easy to lose.
Before acting on How to Compare Arranged Overdrafts, verify interest or arranged-overdraft pricing using the provider tariff, eligibility page and current account terms. If the answer depends on a rule outside the provider, confirm it through the relevant payment-system or regulatory source. BankOfferScout supplies the decision framework rather than freezing live product data in time.
Sources and verification
Overdraft pricing and limits are credit decisions. Use the provider calculator or live tariff for your own borrowing pattern and confirm personal eligibility rather than relying on an old representative example.
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