Revenue-based finance in the UK: how it actually works

Revenue-based finance (RBF) is the third leg of the UK SME growth-funding stool, alongside merchant cash advances and unsecured loans. It looks like an MCA in mechanics (flexible repayment as a share of sales) but feels like a loan in use case (growth capital, not working-capital firefighting). For online sellers, SaaS businesses and subscription brands it is often the single most natural fit. This guide explains what it actually is, how it is priced, and when it is the right answer.

How revenue-based finance is structured

An RBF provider — typically Wayflyer, Outfund or Nucleus in the UK — advances a lump sum and is repaid as a percentage of monthly revenue until a fixed total has been cleared. The advance and the total repayable are agreed upfront; the time it takes to clear depends on how fast the business grows. The cost is usually a flat fee on the amount drawn (a factor of 1.06 to 1.12 is typical for mainstream UK RBF), and there is no APR because there is no fixed term.

The repayment percentage — often called the revenue share — is typically 5% to 20% of monthly revenue, debited automatically. Faster growth clears the advance faster; slower months stretch the repayment. There is no fixed instalment and no missed-payment risk in the conventional sense.

Where RBF differs from an MCA

• MCAs draw against card or payment-platform sales; RBF draws against total business revenue including non-card sales.
• MCAs use a higher factor (often 1.15 to 1.35) but shorter expected repayment; RBF uses a lower factor (1.06 to 1.12) over a longer expected repayment.
• MCAs are typically working-capital products; RBF is positioned as growth capital — stock, marketing, hiring.
• RBF underwriting is heavier on unit economics — CAC, contribution margin, payback — than MCA underwriting, which is heavier on raw sales volume.

Where RBF differs from a term loan

A term loan has a fixed monthly repayment and a fixed end date. RBF has neither. The trade-off is cost certainty versus flexibility. A loan suits a business with predictable cashflow that wants to amortise capex cleanly. RBF suits a business with volatile or seasonal revenue that wants repayments to flex with sales. For ecommerce businesses with seasonal Q4 spikes, the flexibility of RBF often outweighs the small extra cost over a term loan on a like-for-like basis.

Typical UK RBF pricing in practice

On a £100,000 advance at a 1.08 factor with a 10% revenue share, a business turning over £80,000 a month would clear the £108,000 total in roughly 14 months. The implied annualised cost works out at around 9% — broadly comparable to a mainstream unsecured loan but without the fixed-monthly stress. Faster-growing businesses clear in 8 to 10 months, lifting the implied annualised cost. Slower businesses stretch to 18 to 24 months, lowering it.

Eligibility signals UK RBF lenders weigh

• Monthly revenue of at least £25k to £50k for entry-level facilities; £100k+ for larger advances.
• 6+ months of consistent revenue on integrated platforms (Shopify, Amazon, Stripe, WooCommerce, Magento, custom Stripe).
• Reasonable unit economics — contribution margin in double digits after fulfilment and marketing.
• Diversified revenue across channels or customers (concentration on one ad platform or one marketplace reduces advance size).
• Director credit checks are usually softer than for unsecured loans; some providers position no-PG for facilities under £500k, subject to terms.

Sectors that suit RBF

RBF is purpose-built for online and recurring-revenue businesses. The strongest fits are DTC ecommerce on Shopify or BigCommerce, Amazon FBA sellers, subscription brands, SaaS businesses with measurable MRR/ARR, and marketplaces with platform-side payment data. Service businesses without integrated payment data fit less well — there is no automated repayment debit mechanic.

When RBF is the wrong shape

• Pre-revenue or very early-stage businesses (most UK RBF lenders want 6+ months of revenue).
• Businesses without integrated payment data — RBF underwriting relies on direct platform integration.
• Capex spend with long payback (more than 18 months) — a term loan or asset finance is usually cheaper.
• Cashflow firefighting where the business is already stretched — RBF repayment will accelerate the strain in fast-growth months.
• Businesses with deteriorating unit economics — most RBF providers will decline rather than advance into a loss-making cohort.

Renewal and stacking dynamics

RBF works on a renewal cycle similar to MCA but typically longer. Many providers invite a renewal once 50% to 75% of the original advance has been cleared. Renewal pricing usually softens for clean repayment history — the second and third advances are often quoted at lower factor than the first. Stacking (running two RBF facilities from different providers at once) is usually a contractual breach; if you need more capital, take it as a top-up from the existing provider.

How to evaluate an RBF offer

1. Confirm the advance, total repayable and revenue share percentage.
2. Multiply your forecast monthly revenue by the revenue share to estimate monthly cash outflow.
3. Divide total repayable by forecast monthly outflow to estimate the repayment horizon.
4. Calculate implied annualised cost (factor minus 1, divided by repayment months, times 12).
5. Compare to a like-for-like unsecured term loan over the same horizon. RBF can be cheaper or more expensive depending on growth rate.
6. Check renewal terms, what happens to existing advance on renewal, and any early-settlement options.