Late payments remain one of the biggest threats to UK small businesses. In 2026, SMEs collectively are owed an estimated £112 billion in unpaid invoices, a cashflow squeeze that contributes to dozens of business closures every single day. If you’re a B2B business operating on 30, 60 or even 90-day payment terms, you already know the problem: the work is done, the invoice is out, but the money is stuck. So what is invoice finance, and how can it help you bridge that gap?
In this blog, we’ll walk through exactly what invoice finance is, how it works, the different types available, and why it has become one of the most popular working capital tools for growing UK SMEs.
So, What Is Invoice Finance?
Invoice finance has evolved into a fast, flexible, and sophisticated way of leveraging future cashflows for growing businesses. Invoice finance allows businesses to release the cash tied up in unpaid invoices. If you are a business that struggles with cashflow issues, invoice finance is one of the best ways to ensure that you get your invoices paid faster.
In simple terms: rather than waiting days or weeks for invoices that you are owed by customers, invoice finance gets you the cash immediately so that you don’t have to wait to get paid.
How Does Invoice Finance Work?
A working example of how this can impact your cashflow: if you provide temporary workers to the council, it is likely that your workers need to be paid every Friday, and equally likely that the council pays you monthly in arrears. Clearly, you are going to have negative cashflow. Invoice finance providers will allow you to draw down up to 90% of the weekly invoices upfront, meaning that you can afford to pay your workers each Friday.
The typical process looks like this:
- You raise an invoice to your customer.
- You submit that invoice to your invoice finance provider.
- The provider advances a percentage of the invoice value, typically 80%-90%, into your account, often within 24 hours.
- Your customer pays the invoice as usual, either to you or to the lender, depending on the type of facility.
- The remaining balance is released to you, minus the lender’s service fee and interest.
Types of Invoice Finance
There isn’t just one “invoice finance” product; there are three main types, and the right one for your business depends on how much control you want to keep over your sales ledger.
Invoice Discounting
Your invoice discounting provider will make funds available as a percentage (normally 75–90%) of your outstanding and eligible sales ledger. Once your client pays, the remaining balance of the invoice is available for you to withdraw. Invoice discounting can be done on a disclosed or confidential basis.
Invoice Factoring
Factoring is the old school of invoice finance. The lender will make funds available to drawdown against your entire sales ledger. Unlike invoice discounting, the lender is closely involved with the collection of your debts. The lender will monitor your ledger closely and provide credit control to ensure customers pay on time. Factoring is often a great fit for smaller businesses or those without a dedicated finance function, because outsourcing credit control can free up significant time and overhead.
Selective Invoice Financing
Probably the most flexible and costly of the invoice finance products. Selective invoice finance does not involve an agreement over the entire sales ledger; rather, over a selection of invoices. This means that the borrower can choose which invoices to advance against. This means you keep control and have the flexibility to adjust your cashflow when needed.
The Benefits of Invoice Finance
So why are so many UK businesses turning to invoice finance? There are four major benefits worth highlighting:
- Credit Control
Factoring facilities often take care of the credit control function, removing the hassle for the business. This can reduce your costs and allow you to concentrate on what you do best.
- Flexibility
Unlike loans, you can flex the amount you draw up and down. All of the major invoice finance providers have different ways of making the facility as flexible as possible for the borrower, and the facilities can often be tailored for specific needs. As your sales grow, your available funding grows with you, which is something a fixed-term loan simply can’t offer.
- Cashflow
This is an obvious one, but being able to draw down cash from unpaid invoices clearly will ensure that your cashflow is in a more positive position than having to wait 30/60/90 days for payment. For recruitment agencies paying contractors weekly, manufacturers funding raw materials, or any business where outgoings run ahead of incomings, this can be transformational.
- Speed
Funding is available quickly, once the arrangement is in place. Applying for invoice finance can also be a relatively simple process, given the quantum involved. Many modern providers now offer same-day decisions and same-day funding, particularly for selective invoice finance facilities.
Is Invoice Finance Right for Your Business?
Invoice finance tends to work best for businesses that:
- Sell B2B (business-to-business), not to consumers
- Issue invoices on credit terms of 30 days or more
- Have creditworthy customers
- Need working capital to bridge the gap between delivering work and getting paid
It’s particularly well-suited to sectors like recruitment and staffing, haulage and logistics, manufacturing, wholesale, construction and professional services.
Ready to Release the Cash Tied Up in Your Invoices?
If your business is growing but your cashflow is being held hostage by slow-paying customers, invoice finance could be the answer. Whether you need full-ledger factoring, confidential invoice discounting, or selective funding on a per-invoice basis, there’s a facility out there that fits. At Funding Bay, we work with UK invoice finance lenders to match your business with the right facility at the right price. If you’re interested in exploring an invoice finance facility, get in touch with the Funding Bay team today for a no-obligation conversation about your options.
