Summary (TL;DR)
First Direct offers the most generous interest-free overdraft buffer for personal accounts at £250, making it one of the cheapest options for occasional small overdraft use despite its 39.9% EAR on amounts above that threshold. Starling Bank provides transparent arranged overdraft facilities at between 15% and 35% EAR depending on credit score, with flexible app-based limit controls. Monzo offers up to £3,000 in overdraft credit at 19% to 39% EAR depending on TransUnion credit score. For businesses, Barclays, NatWest, and Metro Bank offer higher limits, while HSBC is noted for same-day approval. Overdraft interest in the UK is regulated by the FCA and must be expressed as a simple annual rate, with no additional fees permitted for unarranged overdrafts.
Understanding Overdrafts in the UK
An overdraft facility allows the holder of a UK current account to spend beyond their available balance up to an agreed credit limit. It functions as a short-term revolving credit line, providing financial flexibility when expenditure temporarily outpaces income. Overdrafts are most appropriately used for bridging short-duration cash flow gaps covering an unexpected bill before a salary payment, for example rather than as a long-term borrowing mechanism. The interest rates applicable to UK overdrafts are considerably higher than most forms of long-term personal borrowing, making overdrafts economically inefficient for persistent or large-balance debt.
In April 2020, the FCA implemented significant reforms to the UK overdraft market. Banks are now required to charge a single, simple annual interest rate on all overdrafts whether arranged or unarranged and may not levy fixed daily or monthly fees in addition to this interest. This standardisation made overdraft costs easier to compare across providers and eliminated some of the more opaque penalty structures that had historically disadvantaged customers who inadvertently exceeded their limits.
Arranged vs Unarranged Overdrafts
An arranged overdraft is an agreed facility established with your bank before any overdraft use occurs. The bank specifies the maximum limit, and interest accrues at the agreed rate only when the balance is negative. An unarranged overdraft occurs when you exceed your available balance or your arranged overdraft limit without prior agreement. Prior to the 2020 FCA reforms, unarranged overdrafts were subject to substantially higher fees and charges; following the reforms, banks must apply the same interest rate to unarranged overdrafts as to arranged ones, though they retain the right to decline individual transactions if you have no arranged facility in place.
FCA Regulation of UK Overdrafts
All UK overdraft providers are regulated by the Financial Conduct Authority. The FCA's 2020 reforms require that interest rates on overdrafts be expressed as an Equivalent Annual Rate (EAR) to allow meaningful comparisons. Banks must not charge additional fixed fees for entering an unarranged overdraft, and must provide clear and transparent pricing disclosures. The FCA also requires banks to have in place processes to identify customers who may be in financial difficulty and to offer appropriate support, including referral to free debt advice services. UK overdraft products must be offered only to customers who have passed an affordability assessment.
Best Personal Accounts for Overdraft
First Direct
First Direct offers an interest-free overdraft of £250 on its standard current account, making it one of the most cost-effective options for customers who only occasionally dip into their overdraft by modest amounts. For balances above £250, a rate of 39.9% EAR applies. First Direct consistently receives excellent customer satisfaction ratings, and its account is free. The bank is currently offering a £175 switching bonus for new customers using the Current Account Switch Service and also provides access to a 7% Regular Saver account fixed for 12 months. Note that First Direct shares its FSCS protection limit with parent bank HSBC, so combined deposits across both institutions are covered under a single £85,000 limit.
Club Lloyds
The Club Lloyds account provides a fee-free arranged overdraft of up to £50, with interest of 29.9% EAR on amounts above this buffer. At 29.9%, Lloyds' rate is among the lower overdraft rates available from a major UK high street bank. To avoid the £5 monthly fee, account holders must deposit at least £2,000 per month. Additional benefits include a Monthly Saver account paying 6.25% AER for 12 months and a choice of lifestyle benefit such as cinema tickets, a magazine subscription, a Coffee Club or Gourmet Society membership, or a Disney+ subscription.
Santander Edge and Edge Up
Santander's Edge and Edge Up accounts offer a fee-free arranged overdraft for the first four months following account opening, after which a rate of 39.94% EAR applies. The Edge Up account additionally pays 1% cashback on household bills (up to £15 per month) and 2.5% AER interest on balances up to £25,000. The Edge account requires a minimum deposit of £500 per month and two Direct Debits. The Edge Up requires £1,500 per month and two Direct Debits. Santander is currently offering a £200 switching bonus.
TSB Spend and Save Plus
TSB's Spend and Save Plus account offers an interest-free overdraft of £100, beyond which a 39.9% EAR applies. The account pays £5 cashback per month for customers making at least 20 debit card payments, and TSB is currently offering a £150 upfront bonus for new customers along with an enhanced cashback offer for the first three months. A £3 monthly fee applies.
Best Digital Bank Overdrafts
Starling Bank
Starling Bank is widely regarded as the best digital bank for arranged overdraft facilities in the UK. The bank offers variable overdraft limits with interest rates ranging from 15% to 35% EAR depending on the customer's credit score a range that compares favourably with many high street competitors, particularly for customers with strong credit profiles. Overdraft applications are handled within the Starling app, and once approved, customers can set their own lower usage limits to remain in control of their borrowing. Starling's account is fee-free and includes the full suite of banking features expected from a modern UK digital bank.
Monzo
Monzo offers arranged overdraft facilities of up to £3,000 for eligible customers, with interest rates of 19%, 29%, or 39% EAR depending on the customer's TransUnion credit score. No penalty fees are charged for using the overdraft, provided customers remain within their agreed limit. Customers receive in-app notifications when they enter overdraft territory, providing an opportunity to top up their balance and reduce interest accumulation. The overdraft limit can be adjusted within the Monzo app at any time.
Kroo Bank
Kroo is a fully licensed UK bank that offers current accounts with interest-bearing features alongside personal loan products. Eligible account holders may be offered an overdraft facility following account opening, at rates that are competitive within the digital banking space.
Best Business Overdraft Options
For UK businesses requiring overdraft access, the major high street banks offer the most comprehensive facilities. Barclays, NatWest, and Metro Bank offer higher credit limits than challenger banks and are suited to businesses with established trading histories. HSBC is noted for same-day approval on business overdraft applications, which is advantageous for businesses that need immediate access to liquidity. NatWest offers lower interest rates than Santander (which has recently increased its business overdraft rates and fees), making it a cost-effective choice for smaller businesses. Metro Bank and Lloyds score well for mobile banking quality and customer support. Most business overdrafts are unsecured up to certain thresholds and may require a personal guarantee above those limits. Applications typically trigger a credit check, which can temporarily reduce the business credit score.
Interest-Free Overdraft Offers: What to Watch Out For
Several UK banks offer 0% interest periods on overdrafts, most notably student accounts and limited-time introductory offers on current accounts. While these can provide genuine cost savings, there are important caveats. Interest-free periods are time-limited, and once they expire, rates typically jump to 39.9% or higher. If the account remains in deficit after the free period, accumulated interest can become substantial quickly. Additionally, some 0% overdraft offers require the use of the Current Account Switch Service to qualify, meaning they are only available to customers switching their primary banking relationship. Customers who repeatedly rely on overdraft facilities are advised to explore more cost-effective forms of credit, such as personal loans, which carry materially lower annual interest rates.
Overdraft vs Personal Loan: When to Use Each
An overdraft is the appropriate tool when the credit need is short-term, the amount is modest, and repayment will occur within days or weeks for example, bridging a gap before a scheduled salary payment. The flexible, revolving nature of overdrafts and the absence of fixed repayment schedules make them well-suited to managing temporary cash flow mismatches. However, when the amount required is larger or the repayment timeline extends beyond a few weeks, an unsecured personal loan typically offers a significantly lower effective interest rate often in the range of 5% to 15% APR compared to overdraft rates of 30% to 40% EAR. UK consumers carrying persistent overdraft balances of £1,000 or more would almost invariably reduce their interest costs by consolidating into a personal loan.
5 FAQs
Which UK bank offers the best overdraft for occasional use?
First Direct is considered the best option for customers who only occasionally use a small overdraft, as it provides an interest-free buffer of £250. If you go overdrawn by less than this amount, you pay no interest at all. Its 39.9% EAR applies only on amounts above £250, and the account also comes with excellent customer service ratings and a £175 switching bonus.
What is the maximum overdraft limit available from a UK bank?
Overdraft limits in the UK are set individually based on creditworthiness and are not publicly advertised in advance. Limits typically range from £500 to several thousand pounds for personal accounts. Monzo offers up to £3,000 for eligible customers. Business overdraft limits can be considerably higher, and the major high street banks including Barclays, NatWest, and Metro Bank accommodate higher business limits subject to credit assessment and, in some cases, a personal guarantee.
Are UK overdraft interest rates regulated?
Yes. Since April 2020, the Financial Conduct Authority requires all UK banks to charge a single simple annual interest rate on overdrafts, expressed as an EAR. Banks cannot charge separate daily or monthly fees for overdraft use, and the same rate must apply to both arranged and unarranged overdrafts. This reform significantly improved transparency in overdraft pricing and made cross-provider comparisons more straightforward.
Will applying for an overdraft affect my credit score?
Applying for an arranged overdraft typically involves a credit check, which may result in a temporary reduction in your credit score. However, using an arranged overdraft responsibly staying within your limit and repaying promptly can have a positive long-term effect on your credit profile, as it demonstrates responsible credit management. Using an unarranged overdraft or persistently maxing out an arranged overdraft can negatively affect your credit score and may signal financial distress to prospective lenders.
Can I switch banks if I currently have an overdraft?
Yes. Having an arranged overdraft does not prevent you from switching banks using the Current Account Switch Service (CASS). If you are not actively using your overdraft, the switch is straightforward. If your account is currently in overdraft, you will need to either arrange for the new bank to accept the transfer of your overdraft, or repay the outstanding balance before switching. Speak with both your existing and prospective bank before initiating a switch in these circumstances.
Sources
Which? – Best Bank Accounts for Overdrafts 2026: https://www.which.co.uk/money/banking/bank-accounts/best-bank-accounts/best-bank-accounts-for-overdrafts-aHIVs6t8cJB
Finder – Best Bank Accounts with Cheap or Free Overdrafts UK 2026: https://www.finder.com/uk/current-accounts/current-accounts-with-overdraft
Wise – Best Online Banks with an Overdraft UK: https://wise.com/gb/blog/online-banks-with-overdraft
LoveMoney – Cheap and Free Overdrafts: Best Current Accounts: https://www.lovemoney.com/bestbuys/5127/cheap-overdrafts-best-current-accounts-for-those-who-go-overdrawn
iwoca – Best Business Overdraft UK: https://www.iwoca.co.uk/business-finance/best-business-overdraft
