Invoice factoring is eating your profit — what to do instead
Factoring fees compound into a permanent tax on margin. The alternatives: fix the payment schedule, automate collections, and finance gaps selectively.
Factoring converts a temporary problem — customers holding your money — into a permanent cost: a fee on every invoice, forever. Before selling your ledger at 2–4% a cycle, exhaust the three fixes that cost almost nothing: a payment schedule that doesn’t create the gap, collections that don’t let invoices age, and financing targeted at the few weeks that genuinely need it.
The trap is well documented in the communities where operators speak honestly. One contractor in Reddit’s r/Construction community described factoring his invoices “at a percentage that cost me the profit on the job” — the work got done, the crew got paid, and the margin went to the factor. That’s the pattern to avoid: not factoring itself, but factoring as a subscription.
The real price of factoring
The quoted fee looks modest — 2–4% of the invoice. The economics are not:
It annualises brutally. 3% for advancing a 45-day invoice is roughly 24% a year. You’d never sign a loan at that rate; factoring is the same money at the same price wearing better clothes.
It scales with success. Grow revenue 40% and the factoring bill grows 40% with it. A cost that tracks your top line while solving a fixable timing problem is the worst kind of cost.
It’s sticky. Exiting requires surviving one full cycle of invoices you don’t factor — precisely the cash gap you started factoring to cover. Many businesses stay not because it’s good, but because leaving needs the buffer factoring prevented them from building.
It can touch the client relationship. Depending on the arrangement, your customer now pays — and sometimes gets chased by — a finance company. For an agency whose brand is the relationship, that’s not a footnote.
Fix one: close the gap at the schedule
Most factoring need is manufactured upstream, where the job’s payment schedule lets the gap open. The cheapest financing is the customer’s deposit: money up front, stage payments landing just before their costs, a final balance too small to fight over. For agencies, the equivalent is retainers billed on the 1st and project work billed at milestones — not one invoice trailing the whole engagement.
If your money never funds the middle of the job, there’s nothing to factor.
Fix two: stop the ledger aging
The second manufactured gap is collections. An invoice that ages to 60 days because nobody chased it at 32 isn’t a financing problem — it’s an unstaffed process. The escalation ladder — reminder, firm note with late-payment terms, statement, formal step — run predictably, moves you up every client’s payment queue; payment links on every invoice remove the friction excuse entirely. This is agent work now: Fynex chases every invoice automatically from day one, so nothing ages by neglect.
Run the two fixes together and watch the “financing need” shrink: less of the job unfunded, invoices paid closer to terms. What remains is a residue — specific, forecastable weeks.
Fix three: finance the residue, not the ledger
Some gaps are real: the big project that’s materials-heavy up front, the seasonal trough, the anchor client whose net-60 is genuinely non-negotiable. Finance those — selectively, eyes open — rather than selling every invoice to cover the worst week.
This is where a live cash forecast changes the decision: when you can see the exact fortnight the position dips, the question stops being “factor the ledger?” and becomes “cover £30k for 20 days” — a smaller, cheaper, one-off problem. And the payables side contributes too: Fynex’s working-capital timing holds bills to their last safe day and captures early-payment discounts when the cash floor allows, recovering margin from the outbound side while the inbound fixes land.
The honest test
Factoring passes as a bridge and fails as a subscription. If you’ve factored once this year against a known lump, fine — tool used, price paid, move on. If the factor’s fee is a line in every month’s P&L, you’re paying a growing tax to avoid fixing terms and collections — the two things that cost almost nothing to fix and compound in your favour forever.
The contractor who lost his profit to the factor didn’t have a financing problem. He had customers holding his money and nobody chasing it — and so, quietly, do most businesses that factor. Fix the schedule, put agents on the chasing, finance the few weeks that remain. Keep the margin you earned; it was never the factor’s to take.