Invoice Finance vs. Overdraft for UK Businesses: What's the Difference?

If your B2B business needs fast access to funding, invoice finance and bank overdrafts are two of the most commonly available options. But what's the difference, and how do you know if you're eligible?

In this guide, we'll compare invoice finance vs overdraft facilities according to flexibility, cost, and how likely you are to be approved. We'll also explore different types of invoice finance arrangements and what kinds of businesses they suit.

What Is Invoice Finance?

Invoice finance is a quick and easy way for UK businesses to unlock cash against their unpaid invoices. It is an umbrella term for facilities like invoice factoring, invoice discounting, and selective invoice financing.

Under an invoice finance agreement, the finance provider effectively "buys" your customer invoices and advances you a large share of the money upfront (usually 80–95%). Invoice finance is different from an overdraft or a bank loan because you're accessing working capital from money you're already owed, rather than taking on traditional debt.

When the invoice is due, your customer settles up with either you or your finance provider, depending on the facility and agreement (discounting vs factoring). You'll then receive the remaining balance, minus fees.

Invoice finance is a great option for B2B companies that usually get stuck waiting 30–90 days for payments to clear. It can be especially useful in industries like manufacturing and recruitment, where businesses face high material and/or staffing costs upfront, and payment cycles are long and inflexible.

What is a Business Overdraft?

An overdraft is a pre-agreed credit facility provided by a bank or lender. It is usually tied to your business bank account and allows you to spend more than your available balance, up to a certain limit. You are then charged daily interest on the negative balance.

A typical unsecured overdraft facility for SMEs ranges from £500 to £50,000, while secured commercial overdrafts can range from £50,000 up to £2 million or more.¹ The limit is set according to your business's financial health and relationship with the bank.

Invoice Finance vs. Overdraft: What's the Difference?

Invoice finance and overdrafts are two very separate — but sometimes complementary — business funding options. Here's how they're different.

Flexibility

Overdrafts are demand facilities, meaning the bank can reduce or withdraw your limit at any time with relatively short notice or suddenly demand repayment. There is also a fixed ceiling, so borrowing doesn't necessarily scale along with your business.

Invoice finance is more flexible, as you can advance cash against specific unpaid invoices (selective invoice finance) or your entire ledger. Your borrowing limit scales with your sales volume and shrinks during quieter periods, so you won't be stuck with heavy monthly repayments or interest charges during leaner months or seasons.

Cost

Overdrafts can be relatively cost-effective for small, short-term, or occasional cash flow gaps because you only pay for the days you use the facility.

High-street banks usually charge a percentage of the agreed limit at setup and annual renewal — for example, Lloyds Bank applies a 1.99% annual fee for overdrafts between £5,001 and £25,000.² Interest is charged daily on the negative balance, usually 11–16% added to the Bank of England Base Rate.³

If you exceed the agreed limit, however, overdraft costs can quickly spiral, with standard debit interest rates rising to 19.5% or more, according to HSBC Business Banking.⁴

The cost of invoice finance depends on the facility you choose, the number of invoices you raise, and your customers' risk profile. If you choose an invoice factoring arrangement, for example, you will usually pay between 1% and 5% of the invoice's total value, as well as a service fee ranging from 0.5% to 3%. APR usually sits at around 2% per 30 days. The arrangement is cheaper the more invoices you raise.

Eligibility

You can usually apply for a business overdraft if you are over 18 years old and a sole trader, partner or company director with authority to borrow on behalf of your business.² You must be a Business Current Account holder with your bank of choice, and you must only use the money for business purposes.

Unlike a personal overdraft, business overdrafts are strictly assessed based on the creditworthiness, trading history, and turnover of the business itself. The business must have a clean record, and you cannot be in a Company Voluntary Arrangement⁵ or have been declared bankrupt.

You are likely to be eligible for invoice finance if you sell goods or services to other businesses (B2B) or government bodies (B2G) on credit terms. Unlike standard business loans and overdrafts, invoice finance applications are evaluated based on the creditworthiness of your customers, rather than the financial standing of your business. This means invoice finance is accessible to newer companies, rapidly growing startups or scaleups, and businesses with imperfect credit histories.

Invoice Finance vs. Overdrafts Compared

Feature	Invoice Finance	Overdraft
How it works	Borrow against unpaid customer invoices	Borrow directly from the bank
Eligibility	Based mainly on your customers' ability to pay on time	Based on your business and credit history
Flexibility	Very — fund selected invoices or your whole sales ledger	Not very — only borrow up to an agreed limit
Scalability	Very — funding can grow as your sales grow	Not very — limit usually stays the same unless securing against capital
Repayment	Repaid when customers pay their invoices	Repaid when money comes into your account
Cost	Fees and interest apply	Interest and bank fees apply
Best for	Ongoing working capital	Short-term or occasional cash flow gaps

Common Types of Invoice Finance

There are several different types of invoice finance. The best option depends on how your business generates income, your funding needs, and how you want to manage the collections process.

Invoice Factoring

Invoice factoring is a type of invoice finance where the provider lends you a percentage of your unpaid invoices (80–95%) and takes responsibility for collecting those payments from your customers. This option is great for small teams with no internal finance or collections department, as you save time on credit control while keeping operations running smoothly.

Invoice Discounting

Invoice discounting is similar to invoice factoring, except you maintain control of your customer relationships and collections, so the whole process remains discreet. Your customers pay you directly, and you repay the provider. This option is ideal for businesses who want to keep their arrangement discreet, or for companies with an in-house finance team.

Selective Invoice Finance

Selective invoice finance (also known as spot factoring) is the same as invoice factoring, except that you only raise specific invoices or customer accounts rather than your whole ledger. This is ideal if you only need financing for a specific period (such as a busy season) or for one notoriously slow-paying customer.

If you're not sure which facility you need, get in touch with our team, and we'll get back to you in 24 hours, or get a free, personalised invoice finance quote in minutes.

Which Funding Method Is Right for Your Business?

When weighing up invoice finance vs overdrafts, the right decision for your business depends on how much you need to borrow and how often.

If you only need occasional access to cash and you have an established business account and a good relationship with your bank (and can therefore access competitive rates), a business overdraft could be the right choice.

But if your business has a growing sales ledger and you need a regular cash flow solution that will scale automatically with your revenue — or the bank is unwilling to give you a loan or an overdraft — invoice finance is the more appropriate solution.

Invoice Finance vs Overdraft FAQs