Funding Options for UK E-commerce Brands Scaling Beyond Their First Million in Revenue

Once your e-commerce brand clears £1m in annual revenue, the funding game changes. You're too big for starter loans and credit cards, but often too lean for traditional bank lending, which pushes most scaling DTC brands towards revenue-based finance, working capital loans, or a blend of both depending on margin profile and inventory cycle.

What changes at £1m+ in e-commerce revenue

Crossing the million mark shifts the financial picture in three concrete ways. Working capital needs grow non-linearly because inventory orders get bigger, lead times from Asian suppliers stretch to 90-120 days, and marketing spend on Meta and Google compounds quickly when scaling paid acquisition.

Most £1m-£5m brands hit a cash gap. You've outgrown bootstrapped growth but you're not yet hitting the £5m-£10m revenue band where private equity and venture debt become realistic options. The funding tools that worked at £200k revenue, such as personal credit cards, founder loans, or a small overdraft, no longer move the needle.

UK e-commerce sales hit £128.2bn in 2023 according to ONS retail figures, and the brands taking market share are the ones who solved the cash conversion cycle problem early. Funding choice at this stage often decides whether the next 18 months feel like controlled growth or a constant fire drill.

Revenue-based finance versus working capital loans

The two dominant options for scaling online sellers work differently in structure, cost, and risk. Revenue-based finance (RBF) takes a percentage of daily or weekly sales until a fixed multiple is repaid. Working capital loans give you a lump sum repaid in fixed instalments over a set term, typically 6-24 months.

RBF flexes with your sales. Slow month, smaller repayment. Big Black Friday, bigger repayment, paid off faster. Working capital loans don't care what your sales look like, the direct debit goes out on schedule. For seasonal brands or those with volatile monthly revenue, that distinction matters a lot.

When RBF makes sense

• Gross margins above 50% so the fee doesn't eat your unit economics
• Sales spread across multiple channels (Shopify, Amazon, wholesale)
• Predictable scaling on paid ads where every £1 in spend returns £3+ within 60 days
• Founders unwilling to give a personal guarantee

When a working capital loan wins

• You need a bigger ticket (£250k+) than most RBF providers will write
• You can model repayments precisely and want the lowest total cost of capital
• The use case is one-off, like a warehouse fit-out or a bulk inventory buy at a discount
• You have 12+ months of clean trading and want a relationship lender

We covered the maths in more depth in When Fixed Fee Funding Beats Interest Based Loans for E-commerce Brands, which is worth reading if you're stuck between the two structures.

Comparing the main options at the £1m+ stage

Iwoca's headline figure of up to £1m unsecured is genuinely competitive for the scaling DTC bracket, and instant decisions up to £100k let you act quickly on inventory opportunities. The personal guarantee requirement is the trade-off, and worth weighing if you have a co-founder or external shareholders. For more on how speed affects deal selection, see our note on Funding Speed.

The main revenue-based finance providers for UK e-commerce

RBF has matured into a credible category for online sellers turning over £1m+. The two providers most UK founders consider are Wayflyer and Uncapped, with Clearco still active for some applicants. The structural differences are real, and they affect your effective cost.

Wayflyer

Dublin-based, writes advances from £10k up to around £20m. Fees usually sit between 2% and 8% of the advance, repaid as a percentage of daily sales. Strong for Shopify and Amazon sellers with consistent ad spend. The underwriting team looks closely at MER (marketing efficiency ratio) and contribution margin per order.

Uncapped

London-based, fees from 2% to 12%, ticket sizes from £10k to about £10m. Faster on smaller advances but the fee structure can creep up for higher-risk profiles. Often the choice for brands who want a fixed-fee deal without a personal guarantee.

Clearco

Canadian origin, scaled back UK activity in 2023-2024 but still writing some deals. Worth checking but not the first call for most UK brands now. Our side-by-side at wayflyer vs clearco goes through the differences in eligibility and effective cost.

For a direct comparison of the two market leaders, our Wayflyer vs Uncapped piece breaks down where each one underwrites more aggressively. The short version: Wayflyer tends to favour established Shopify brands with clean ad data, Uncapped is more flexible on the channel mix.

Working capital options worth considering

If RBF doesn't fit, either because your margins are thin or you want a fixed repayment schedule, working capital loans remain the workhorse option. Iwoca leads on speed and ticket size, with unsecured loans up to £1m and decisions in 24 hours for established applicants. Funding Circle writes up to £500k but typically demands two years of accounts and a personal guarantee from a majority shareholder.

The clearing banks (Barclays, NatWest, HSBC, Lloyds) all have growth lending products. They're slower (2-6 weeks from application to drawdown), cheaper if you qualify, and stricter on covenants. A £1.5m revenue Shopify brand with 18 months trading is usually a borderline case, in part because high street credit teams still find DTC inventory hard to value as collateral.

Brokers can help you triangulate. Swoop Funding vs Funding Options compares the two main UK platforms that aggregate lender quotes, useful if you don't want to apply to six places individually. We've also reviewed Funding Alternative Group and Sedulo Funding Solutions for founders who prefer a relationship-led broker.

Less obvious sources of capital at this stage

Most scaling brands stop at RBF or a term loan. A few other levers are worth pulling, particularly when you want to extend runway without diluting equity or stacking debt.

R&D tax credits

If you're building proprietary tech, custom Shopify apps, bespoke logistics integrations, or in-house data tooling, you may qualify for R&D tax relief under the merged scheme. HMRC's guidance on R&D relief sets out the qualifying activities. Advance funding against an expected claim is available, and our page on 1m R&D Tax Credit Funding covers how that works in practice.

Inventory and trade finance

If your cash crunch is specifically about importing stock from China or Vietnam, trade finance facilities pay your suppliers directly and give you 90-120 days to repay. This sits alongside an RBF or working capital line rather than replacing it. Business funding options here vary by industry and supplier relationships.

Revenue-based finance at the £1m+ ticket

The larger RBF deals start to look more like venture debt in structure. For context on what a seven-figure advance involves, our 1m Revenue-Based Finance page sets out typical terms. The general revenue based financing uk overview covers the structural basics.

Litigation funding

Niche, but if you're in dispute with a supplier, a former agency, or a marketplace over withheld payouts, litigation loans uk can release capital without touching your operating cash flow.

How to decide: a practical framework

Run the numbers on three things before you sign anything.

First, contribution margin per order after all variable costs (COGS, fulfilment, payment fees, paid acquisition). If it's below 25%, RBF fees will hurt. A working capital loan with a known fixed cost is usually cheaper in absolute terms.

Second, the cash conversion cycle. Measure days inventory outstanding plus days sales outstanding minus days payable outstanding. If your CCC is over 90 days, you need a facility that flexes with sales, which points to RBF or a revolving credit line.

Third, the use of funds. One-off capital needs (a new 3PL, a brand redesign, a big patent filing) suit term loans. Recurring needs (monthly inventory restock, ongoing paid media) suit revolving or revenue-based products. If you're refinancing existing debt, model the new payment carefully using something like the Funding Circle refinance calculator to compare before and after.

For founders also considering a switch from a high street lender, the barclays Business loan refinance calculator gives you a quick view on whether a refi makes sense. The FCA's consumer credit register is also a sensible check on any lender you're not familiar with.

What we'd recommend for most £1m-£5m e-commerce brands

For brands in this band, a stacked approach usually works better than choosing one product. A typical setup looks like this:

• A working capital line of £100k-£300k from Iwoca or similar, for fast-moving inventory and tactical opportunities. 24-hour funding speed matters when a supplier offers a 15% discount for payment within 48 hours.
• An RBF facility from Wayflyer or Uncapped sized at roughly one month of revenue, used specifically for paid acquisition where ROAS is measurable and consistent.
• A trade finance line for international supplier payments, keeping the bigger ticket loans free for growth investment rather than restocking.

This combination keeps any single facility from becoming a single point of failure. It also means you're not paying RBF fees on capital you'd use for low-return activities like rent or salaries. The cheapest pound of capital should fund the lowest-return activity, the most expensive pound should fund the highest-return one.

For founders comparing the wider market, our pillar guide on the best alternative small business loans covers more than 20 UK lenders side by side, with eligibility criteria and typical decision times.

Next steps

If you're sitting at £1m-£3m and weighing your options, do three things this week. Pull your last six months of management accounts and calculate contribution margin per order. Get indicative quotes from at least one RBF provider and one working capital lender so you can compare effective annual cost on the same use case. Then stress-test the repayment against your worst month of the last 12, not your best, because that's the month the funding has to survive.

Capital choice at this revenue stage compounds. The brands that grow into £10m+ businesses usually got the funding mix right at £2m, not because they found a cheaper rate but because they matched the structure to the cash flow. That's the question worth answering before you sign anything.