Business overdraft vs business credit card: how to choose the right finance

Cash flow challenges are common amongst small businesses in the UK, so access to short-term credit can be crucial. Whether used to cover temporary cash gaps in key periods or as an ongoing source of working capital for business expenses, overdrafts and credit cards are the most popular solutions. But which is most suitable for your company?

We compare business overdrafts with business credit cards, including how they differ, the costs involved and the pros and cons of each solution.

Business overdraft vs credit card: the key differences

The main differences between business credit cards and business overdrafts surround how they’re allocated and how interest is applied. An overdraft allows you to continue spending on your bank account, even when the balance dips beneath zero, with interest applied when you drop into it. Meanwhile, a business credit card has billing cycles and interest-free periods,* plus features and rewards like cashback on expenditure. 

*Interest-free windows are grace periods to clear your full balance before incurring interest, rather than an introductory offer at 0% APR.

How these credit solutions work

Overdrafts act as a buffer, helping you access short-term business funding beyond your current balance for temporary needs, such as unexpected costs or when cash is tight. Credit cards are more for regular expense management and spreading the costs of key assets and investments.

How does a business overdraft work?

Overdrafts are pre-agreed excess limits provided as part of your business bank account, meaning you can still spend money on your account if your balance falls below zero. There are no set repayment dates, and interest is applied from the moment you use the credit. They’re offered by your bank, with some providers charging arrangement fees.

How does a business credit card work?

Business credit cards are financial products separate from your bank account, available from various banks and lenders. They work as a revolving line of credit and are accepted anywhere, helping you manage expenses, build credit history, ease cash flow and earn cashback. 

You also benefit from interest-free periods if your balance is cleared in full each billing cycle, while for more expansive use, you can carry over the balance and pay interest on it.

The costs involved

Business overdrafts usually incur interest from day one using the credit. However, you only pay interest on what you use. Some banks charge arrangement fees, and unarranged overdrafts (spending beyond your account balance without a pre-agreed facility) come with higher rates and penalty charges.

Business credit cards charge no interest if your credit balance is cleared within the interest-free window. However, depending on your card use and cash flow, you may not clear the balance, meaning interest is applied to credit carried over. 

Interest rates vary by provider, so when comparing different overdrafts vs credit cards for business, check the rates and consider the APR, accounting for annual fees and other charges. 

Credit flexibility and access 

Access to an overdraft facility depends on your existing business bank account. You may be offered one when opening your account, or you can arrange an overdraft with your relationship manager. As it’s linked directly to your account, it’s easy to use and track, as you simply pay interest each day you’re in your overdraft. However, it’s not a guaranteed line of credit, and your bank can withdraw or reduce it at short notice.

Business credit cards require a separate application, are accepted globally and can extend credit to employee cardholders. Credit cards can come with larger limits than overdrafts, giving you access to greater sums of capital, and allow you to spread the cost of business spending to ease cash flow.

Main pros and cons

Key business credit card benefits

• Helping you manage regular expenses

• Reducing cash flow pressure

• Interest-free periods if you repay your balance in full each cycle

• Various rewards, such as cashback and travel perks

• Potential expense management features in card apps, including spending controls

• Improving business credit history and risk profile (if used responsibly)

Drawbacks of using a business credit card

• Interest on spending can rack up (when outside of interest-free periods)

• Limits and rates offered depend on various factors, including your credit score

• Cards for newer businesses can be more difficult to access 

• Potential penalty fees and credit record impact if you miss repayments

Key business overdraft benefits

• Covering temporary cash flow gaps or unexpected costs

• Easy access to extra funds directly from your business account

• Interest only charged on the credit you use

• No pressure in timescales for repayments 

Drawbacks of using a business overdraft

• Credit limits offered can be lower than most other sources of business finance

• Banks can reduce or withdraw your overdraft limit at short notice

• Interest rates and fees can be relatively high compared to credit cards (especially unarranged overdrafts)

When does using a business overdraft best suit companies?

A business overdraft is a good option for covering temporary working capital needs and as a buffer for unexpected costs, as it’s accessed automatically through your existing bank account.

Overdrafts are suitable for:

• Businesses wanting a safety net for unpredictable short-term cash gaps

• Transactions such as bank transfers and supplier payments coming out of your account, where credit cards may not be accepted

• If you’re not currently eligible for a credit card or business loan

When is a business credit card a better option?

Using a business credit card rather than an overdraft is a more sophisticated option for managing expenses and cash flow. They offer a range of benefits, from cashback and rewards to employee card distribution and spending controls.

Credit cards are suitable for:

• Predictable, regular card spend

• Tracking, managing and predicting cash flow

• Spreading the costs of purchases that help to grow the business (increasing ad/marketing spend, boosting inventory in key sales periods, etc) 

• Earning cashback and points on related activities

Benefiting from interest-free periods and rewards

Credit cards are geared up to reward regular use. This includes cashback and any other rewards schemes offered by providers, plus the credit history you build as you spend, which can help for future funding applications.

Interest-free periods allow you time to repay credit within a pre-set window, so you can actually benefit from any rewards gained.

Business overdrafts vs credit cards: cash flow comparison

Both credit solutions are effective business cash flow options. The SME Finance Monitor Survey showed increased use of credit cards and overdrafts in 2025, which coincided with an increase in businesses reporting cash flow as a major concern.

Business credit cards are generally best for planned spending, whereas business overdrafts are better suited to covering unexpected or temporary cash gaps. For example, if you need to pay a supplier £10,000 imminently but you’re awaiting a large payment from a customer in, say, 30 days, either option could bridge this gap. 

With an arranged business overdraft of over £10,000, you can access the funds immediately, but interest is added from the first day until the balance is repaid. So, you’ll incur interest until your client payment arrives.

With a business credit card, you may be able to repay the balance in full within the interest-free period, once you’ve received the customer payment, avoiding any interest charges. However, if you carry a balance beyond the payment due date, you’ll start incurring interest.

Note: This is just an illustration of how business overdrafts and credit cards work in practice for short-term cash flow shortages; it’s not financial advice.

How Funding Circle's Cashback credit card and FlexiPay solution can help your business

Whether you need a credit facility for short-term, ad hoc cash flow gaps or for planned spend to boost your purchasing power, Funding Circle has you covered. You can choose from our Cashback business credit card and FlexiPay solution.

As a flexible line of credit, FlexiPay allows you to access funds as and when you need them and choose a suitable repayment period (1, 3, 6, 9 or 12 months). You simply pay a flat fee from 1.99% per use, and you can access up to £250,000. Unlike an overdraft, it’s not tied to your bank or dependent on a negative account balance. It’s a separate credit facility to use, alongside your bank account and other credit solutions.

Our business credit card also offers up to £250,000, a 42-day interest-free period and 2% cashback for the first 6 months (up to £2,000), then 1% uncapped thereafter. Also, there are no annual costs or transaction fees. 

Funding Circle credit eligibility requirements

For both our business credit card and flexible line of credit, we have very simple eligibility requirements. You just need to tick the following boxes:

• You’re a UK-incorporated business (Ltd/LLP)

• You’ve been trading for at least a year

• You have an annual turnover of £30k+

Explore the benefits of Funding Circle’s business credit solutions and find out how to apply. 

Business credit cards vs overdrafts FAQs

Is a business credit card cheaper than an overdraft?

If you clear your balance within the grace period, you’ll pay no interest on your credit card spend, whereas with an overdraft, interest is applied from day one of use. But a card balance carried over incurs interest. So, the comparable costs of using a business credit card vs overdraft are based on the interest rate charged, the length of time carrying credit and the amount of credit used charged at the agreed rate. 

When choosing a business overdraft or credit card, consider all potential costs, such as annual fees and transaction fees charged by certain card providers and arrangement fees for some overdrafts. 

Which of these cash flow credit solutions are more flexible?

The main flexibility of an overdraft is how it integrates with your bank account, kicks in automatically as you drop below zero and the lack of repayment deadlines. A business credit card is technically a more flexible cash flow solution, as you can apply spend controls and limits for employees and manage the credit strategically, including spreading the cost of purchases and using the interest-free period. But it doesn't cover all payment types.

Can I use both a business credit card and an overdraft?

Yes. The good thing about business credit cards and overdrafts is that they’re not an either-or choice. Many businesses have an overdraft for their current account and use a business credit card for day-to-day spending. So, you could have a pre-agreed overdraft limit with your bank as well as a credit card and/or a flexible line of credit like FlexiPay.

What's the difference between FlexiPay and a business overdraft?

FlexiPay is a revolving credit facility with a flat fee per use rather than daily interest. It isn't attached to your bank account like an overdraft, but it can serve a similar cash flow function. You can draw down from it, as and when needed, repaying the funds over time (between 1 and 12 months). A business overdraft is a pot of credit to dip into when your current bank balance drops below zero and is subject to fairly high interest rates. 

With FlexiPay, you use the credit whenever you want and choose a suitable repayment period.

Disclaimer

28/07/26 – While we want to help as much as we can, the information found here is provided solely for informational purposes and should not be considered financial or legal advice. To the extent permitted by law, Funding Circle does not accept any liability for any loss or damage which may arise directly or indirectly from the use of, or reliance on, the information contained here. All information is correct at time of publishing, and customers should do their own research before making financial decisions. If you have any questions, please speak to your professional adviser or seek independent legal advice.