A regulated firm's balance sheet is smaller than it looks, because two large parts of it are not the firm's to use. The client money it holds belongs to its clients and sits in trust. The regulatory capital it carries to satisfy the FCA cannot be drawn down to service a loan without breaching the rules that keep its permissions. Both constrain borrowing in ways that surprise founders who assume a profitable, cash-rich firm is automatically a good credit. A lender to a financial-services business is really lending against the cash the firm is genuinely free to deploy — which is what is left after regulatory capital and client money are carved out.
Client money is not collateral
Under the FCA's client-money rules in CASS, a firm that holds money for clients must place it promptly into segregated client bank accounts, held on trust and ring-fenced so that, if the firm fails, clients rank ahead of general creditors. The practical consequence for funding is blunt: client money cannot be charged, pledged, or used as security for the firm's own borrowing. A firm cannot grant a lender a charge over a client bank account, because taking that security would mean the money never absolutely transferred away from the clients — it remains client money, and the charge is void as security.
This catches out brokers and advisers who see large balances on the bank statement and assume they support a facility. They do not. A lender looking at an insurance broker holding premium on trust, or a wealth manager with client money in a segregated account, will exclude every penny of it from the security picture. The firm's borrowing capacity rests entirely on its own free cash and free assets, which in an asset-light regulated business is a thin base. This is one reason invoice finance suits the genuinely B2B-billed corners of the sector — corporate broking, employee-benefits consultancies, treasury services — where there are real trade debtors to advance against, separate from anything held on trust.
Regulatory capital the firm cannot spend
The second constraint is the FCA's own-funds requirement. For investment firms under the Investment Firms Prudential Regime, the own-funds requirement is the highest of three figures: a permanent minimum capital requirement — set at 75,000, 150,000 or 750,000 euro-equivalent thresholds depending on the firm's permissions and whether it holds client money — a fixed-overheads requirement equal to one quarter of the firm's relevant annual expenditure, and, for larger non-SNI firms, a K-factor requirement scaled to assets under management and other risk metrics. Smaller, non-interconnected firms sit under the higher of the permanent minimum and the fixed-overheads figure; larger firms add the K-factor on top.
The point for a lender is that this capital must be held as genuine, loss-absorbing own funds, and a firm cannot run it down to repay debt. Worse, the rules push the other way: under the ICARA process, a firm must hold enough liquid resources to wind itself down in an orderly way without harming clients, and that wind-down provision sits on top of the headline requirement. So a regulated firm carries a layer of capital that exists specifically to survive its own failure — capital that, by design, debt service can never touch.
A second-order effect catches firms out at the worst moment. Professional indemnity insurance is mandatory for advice firms, and where the policy excess runs above 5,000 pounds, the FCA requires the firm to hold additional own funds to cover it. A firm that takes on debt, then suffers a profit dip, can find its own-funds headroom squeezed from both directions at once — by the borrowing it has just taken on and by the capital its PII arrangements oblige it to hold back.
How lenders underwrite around it
Sophisticated lenders to the sector do not treat regulatory capital as a problem to be argued away. They treat it as a fixed deduction and lend against what remains. Three things drive how much that is:
- Free cash after the regulatory floor. Affordability is measured on the cash the firm can distribute or apply to debt service after it has met its own-funds requirement with headroom — not on headline EBITDA. A firm running close to its capital floor has little borrowing room however profitable it looks, because every pound of debt service competes with the capital it must preserve.
- Quality of recurring revenue, not just its size. Advice fees from sticky client relationships support more debt than transactional or product-driven income, because the regulatory capital requirement and the FCA's tolerance for the firm both depend on durable, well-governed earnings.
- A clean regulatory record. Open enforcement, unresolved supervisory issues, or a thin ICARA document all raise the lender's estimate of how much capital might be trapped or called for, and shrink what it will advance.
Because secured lending against client money is impossible and lending against a thin free balance sheet is limited, the structures that fit are the ones underwritten on cash generation: a cashflow loan sized on genuinely free cash after the regulatory floor, an asset-based lending facility where there is a real debtor ledger to revolve, and equity where the firm needs to grow its regulatory capital base itself — because raising fresh own funds is sometimes the only way to expand permissions or absorb a larger K-factor without breaching the regime. A firm that walks into a funding conversation already knowing its own-funds requirement, its headroom above it, and which balances are client money raises money faster than one that points at a healthy-looking bank statement and waits to be told why most of it does not count. For how this fits acquisition and working-capital funding across the sector, see the financial-services sector page.