Invoice finance vs a Merchant Cash Advance

When cash flow gets tight, two products come up again and again: invoice finance and a Merchant Cash Advance. They sound like they solve the same problem, and in a sense they do, because both put working capital in your account faster than your customers pay you. But they work in completely different ways, they suit completely different businesses, and for most companies that raise invoices on credit terms the difference in cost over a year is large.

This guide looks at both from the point of view of a B2B business deciding how to fund cash flow. We will be fair to the Merchant Cash Advance where it genuinely fits, then explain why, for a business invoicing other businesses on terms, invoice finance is usually the cheaper and more sustainable route.

The fundamental difference

Invoice finance advances money you are already owed. You raise an invoice to a business customer on 30, 60 or 90-day terms, and instead of waiting the full period, a lender advances the bulk of that invoice value the same working day. It is your money, brought forward. The facility scales with your sales ledger, so the more you invoice, the more funding is available.

A Merchant Cash Advance is different in kind. It is a lump sum paid to you up front, then repaid as a fixed percentage of your future card takings until an agreed total is cleared. It is not tied to a specific invoice or debt. It is an advance against sales you have not made yet, priced as a flat cost of borrowing.

Invoice finance turns an asset you already own into cash. A Merchant Cash Advance sells a slice of income you have not earned yet. That distinction drives every other difference between them.

Which businesses each one fits

This is the part that decides it for most companies, before cost even comes into the conversation.

• Invoice finance needs a B2B sales ledger. You invoice other businesses, you offer credit terms, and there is a gap between delivering the work and getting paid. Manufacturers, wholesalers, recruitment agencies, hauliers, construction firms and professional service businesses are the classic fit.
• A Merchant Cash Advance needs card sales. It is built for businesses that take a high volume of debit and credit card payments directly from consumers, so shops, restaurants, cafes, bars, salons and similar card-taking retail and hospitality operations. Repayment only works if card income is steady and predictable.

If most of your revenue arrives as bank transfers against invoices rather than card taps at a till, a Merchant Cash Advance often does not fit at all, because there is little card income for the percentage to be taken from. The reverse is also true. A card-heavy restaurant with no B2B invoices has nothing for an invoice finance lender to advance against.

How each one is priced

Invoice finance is usually quoted as two charges. A service fee, expressed as a percentage of turnover, covers administration and risk. A discount fee, charged only on the funds you actually draw, covers the cost of the money and is normally a margin over the Bank of England base rate. Because you only pay the discount fee on what you use, the effective cost tracks your actual borrowing.

A Merchant Cash Advance is priced with a factor rate rather than an interest rate. You agree to repay a fixed multiple of the advance, for example 1.2 to 1.4 times the amount borrowed. Borrow £40,000 at a factor of 1.3 and you repay £52,000 in total, regardless of how quickly you clear it. There is no separate interest calculation, which makes the headline simple but can mask a high annualised cost, especially if the balance is repaid quickly.

How repayment works

With invoice finance, repayment is effectively automatic and painless. When your customer pays the invoice, the advance is settled and the balance, minus fees, is released to you. You are never writing a cheque out of the trading account to service the facility, because the debt itself repays it.

With a Merchant Cash Advance, a fixed percentage of every day's card takings is diverted to the lender until the agreed total is paid. This flexes with trade, which is genuinely useful in a seasonal business, because a quiet week costs you less that week. The trade-off is that a strong run of sales does not reduce what you owe in total, it just clears it faster.

The effect on cash flow

Invoice finance closes the gap between doing the work and being paid for it. If your customers are on 60-day terms, that is 60 days of cash you no longer have to fund from reserves. As your invoicing grows, so does the funding, which means the facility supports growth rather than capping it.

A Merchant Cash Advance gives you a one-off injection now, then reduces your daily card income for months while it repays. It can be the right tool for a specific, time-limited need such as a refit or a stock purchase ahead of a busy season. It is less suited to funding an ongoing working-capital gap, because once it is spent you are back where you started, now with a slice of daily takings committed.

Security and personal guarantees

Invoice finance is secured primarily against the invoices themselves, which are the lender's collateral. That asset-backed structure often means the funding is available on terms a business could not get from an unsecured loan. Personal guarantees are common but tend to be limited in scope, and many facilities are offered on a recourse basis with non-recourse available at a higher fee.

A Merchant Cash Advance is generally unsecured against physical assets, relying instead on the strength and consistency of your card income. Providers frequently require a personal guarantee from the directors to offset that, so it is worth reading exactly what you are signing up to.

Speed and scalability

Both can move quickly. A Merchant Cash Advance is often praised for speed, with decisions in a few days based on card-processing history. Invoice finance takes a little longer to set up the first time, because the lender assesses your ledger and debtors, but once the facility is live, drawing against new invoices is same-day.

On scalability they diverge sharply. Invoice finance grows automatically with your sales ledger, so a business that doubles its invoicing roughly doubles its available funding without renegotiating. A Merchant Cash Advance is a fixed lump sum. To borrow again you take a new advance, often before the first is fully cleared, which can stack costs.

A worked comparison: raising £50,000

Take a B2B business that needs £50,000 of working capital. It turns over £1.2m a year invoicing trade customers on 60-day terms, and it also happens to take some card payments.

Using a Merchant Cash Advance at a factor rate of 1.3, the business receives £50,000 and repays £65,000 in total, a cost of £15,000. Repayment comes from, say, 15% of daily card takings. If card income clears it in about 10 months, that £15,000 cost over roughly ten months is a high effective annualised rate. It is simple and fast, but expensive, and it leans on card income the business does not have in abundance.

Using invoice finance, the same £50,000 is drawn against the sales ledger. At an 85% advance rate, the business would fund that draw from around £59,000 of outstanding invoices, which is comfortably covered by a £1.2m turnover. Assume a service fee of 0.6% of turnover and a discount fee of Bank base plus 3% charged only on funds drawn. On an average balance of £50,000 drawn across the year, the discount fee is roughly £3,500 to £4,000, and the service fee is around £7,200. Total annual cost lands near £11,000, and crucially the facility keeps funding every new invoice rather than running dry after one lump sum.

The invoice finance route is cheaper here, and it is renewable by design. As the business invoices more, the funding grows with it, which the Merchant Cash Advance cannot do.

So which should you choose?

A Merchant Cash Advance earns its place in a card-taking retail or hospitality business that needs a defined lump sum and has strong, steady daily card income to repay it. In that setting the flexing repayment and quick set-up are real advantages, and the simplicity is worth something.

For a business that invoices other businesses on credit terms, invoice finance is usually the better answer. It is typically cheaper over a year, it repays itself as your customers pay, it does not divert your daily income, and it scales with your sales rather than capping them. You are unlocking money you have already earned instead of borrowing against sales you have not made.

As a commercial finance broker, not regulated by the FCA, which is the correct position for B2B commercial finance, we work across the specialist invoice finance lenders rather than a single provider. If you raise invoices on terms and want to see what a facility would cost against your own ledger, speak to our invoice finance team. We will look at your numbers honestly and tell you if invoice finance is the right fit, and if a Merchant Cash Advance would genuinely serve you better, we will say so.