Does your term loan require interest rate hedging?
In short
Why a floating-rate term loan usually carries a hedging requirement, for a UK lower-mid-market borrower. Floating-rate debt leaves the borrower carrying the interest rate, so most bank facilities mandate that a proportion of the term debt, commonly half to three-quarters, is hedged for the first two to three years. A swap fixes the rate at no upfront cost but gives up the benefit of falls; a cap sets a ceiling for a premium and keeps the downside. Size the hedge to the amortising balance to avoid over-hedging on prepayment, watch the mark-to-market break cost on early repayment, and negotiate the proportion, the tenor, the instrument and break-cost protection.
Written by Gregory Elgunov, Managing Director · Last reviewed 27 September 2026
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Usually, yes, and usually only in part. A floating-rate term loan prices at a margin over a moving reference rate, which means the borrower carries the interest rate, and a lender underwriting the deal on today’s cash cover wants that exposure contained. So most bank facilities agreements carry a hedging requirement: a clause that obliges you to fix or cap a proportion of the term debt for the first few years, often half to three-quarters of it for two to three years. It is a condition of the loan, not a product the lender is selling you, and the borrower’s job is to hedge the real risk without buying protection you do not need or locking in a position you cannot cheaply unwind. This guide sets out why the requirement exists, the shape it usually takes, swap against cap, the traps on early repayment, and the four levers worth negotiating, at September 2026 rates.
Written for the borrower’s side of the table. This is general guidance, not advice on your specific facility. It deepens the shorter answers in our working guide.
Floating debt leaves the borrower carrying the rate, and the lender wants that contained.
A floating-rate term loan needs hedging because the borrower, not the lender, carries the interest rate, and a large enough rise can eat the cash cover the loan was underwritten on. The facility prices at a margin over a reference rate, SONIA, which sat at 3.73% on 22 September 2026 against a Bank Rate of 3.75%, held at the Bank of England’s September meeting. Bank of England, Bank Rate. On a secured, sensibly geared bank deal the margin might be around 3%, an all-in near 6.75% today, but the reference leg is not fixed. It resets every period with the market, and every point it moves lands straight on the interest bill.
The lender sizes the loan against interest cover, the ratio of cash generated to interest paid, and against the cash-flow cover that has to fund interest and amortisation together. Both tests are calibrated at drawdown rates. A sharp rise in the reference rate lifts the interest bill, compresses the cover, and pushes a performing credit towards a covenant it never breached on trading, purely on the cost of money. Hedging takes that tail off the table. It converts an unknown future rate into a known one on the hedged slice, which is why the requirement sits in the agreement as a condition rather than a suggestion, alongside the leverage and cover tests our guide to loan covenants sets out.
The requirement almost always attaches to term debt, not the revolving line. A term loan is drawn and outstanding for years, so its rate exposure is durable and worth fixing. A revolver swings up and down and can sit undrawn, so hedging it is usually impractical and rarely asked for. When a lender says “the loan” must be hedged, it generally means the amortising term piece.
Typically half to three-quarters of the term debt, for two to three years.
Most bank term loans mandate that a proportion of the term debt is hedged, commonly half to three-quarters of it, for the first two to three years of the facility. The clause names a percentage, a minimum period, and sometimes a deadline to have the hedge in place after completion, often within thirty to ninety days. The proportion is a compromise. Hedging all of the loan would remove the rate risk entirely but leave no benefit from a fall and a larger position to unwind if the loan is repaid early; hedging none leaves the exposure the lender is trying to contain. A partial hedge protects the debt service that matters while keeping some exposure to a favourable move.
The tenor is shorter than the loan for a reason. A five-year term loan amortises, so its later years carry a smaller balance and a smaller absolute risk, and the cost and rigidity of a five-year hedge rarely earns its keep against a two-to-three-year one on the front, heaviest part of the schedule. The notional should follow the debt down. A hedge fixed at the original loan amount and held flat becomes progressively too large as the loan amortises beneath it, which is the over-hedging problem the next sections turn to. A hedge whose notional steps down in line with the amortisation profile stays matched to the debt it is meant to cover.
None of these numbers is a rule; they are the middle of a range you will see across bank facilities. Private-credit and fund-lender structures sometimes take a lighter touch, and a few impose more. What matters is that the clause is negotiable before signing and awkward to change afterwards, so it belongs on the term-sheet agenda rather than the completion checklist.
A swap fixes the rate at no upfront cost; a cap limits it for a premium.
Use a swap when certainty of cash flow matters most, and a cap when you want protection without giving up the benefit of falling rates. An interest rate swap exchanges the floating reference leg for a fixed rate on the hedged notional. You pay a known rate whatever the market does, there is no upfront premium, and the trade is symmetric: if the reference rate falls below your fixed rate, you pay the difference to the bank rather than pocketing it. A swap turns the hedged slice of the loan into fixed-rate debt, and the contractual margin still sits on top of the fixed reference.
An interest rate cap is one-sided. You pay a premium upfront and, in exchange, the reference rate you are charged is capped at a strike: if the market rises above it the cap pays you the difference, and if the market falls you keep the benefit and simply let the cap expire. The premium is the price of that asymmetry, it is sunk whether or not the cap is ever in the money, and a higher strike costs less than a lower one. The lender usually accepts either instrument as long as the strike on a cap is low enough to give real protection.
The choice comes down to cost against certainty. A swap costs nothing to enter but locks you in, so if rates fall you are worse off than a floating borrower and unwinding it can be expensive. A cap costs real money on day one but leaves the downside open and expires cleanly with nothing to break. A borrower who values a flat, forecastable interest line tends to the swap; one who expects to repay early, or thinks rates may fall, often prefers the optionality of a cap. The premium and the fixed rate both feed the total borrowing cost our guide to the all-in cost of raising debt pulls together.
A hedge sized to the original loan grows too big as the loan is repaid.
Over-hedging is holding a hedge larger than the debt it covers, and prepayment causes it because the loan shrinks while a badly structured hedge does not. A swap fixed at the loan amount and held flat is already too large the moment the loan amortises beneath it, and the gap widens with every instalment. The excess notional is no longer hedging borrowing; it is a standalone bet on interest rates, which is exactly the exposure the requirement was meant to remove. Prepay a slug of the loan, or refinance the whole thing early, and the mismatch jumps: you are now fixed on debt you no longer owe.
Take an illustrative £10m term loan hedged at 60%, a £6m swap. Prepay £3m on top of the £2m the schedule retires in year two, so £5m is left outstanding while the swap stays at £6m: the hedge now covers £6m of a £5m balance, and £1m of it is naked. The fix is to match the hedge to the debt from the outset. An amortising swap, whose notional steps down on the same schedule as the loan, stays proportionate as the balance falls, and a partial hedge sized to the balance rather than the original face amount leaves headroom for scheduled repayment. If a lump-sum prepayment or a refinancing is on the horizon, the tenor of the hedge should respect it, because a hedge outliving the debt is a position you did not mean to take.
A cap over-hedges more gently. Its premium is already sunk, so surplus notional after a prepayment costs you nothing further and can simply be left to expire, which is one reason a borrower who expects to repay early often leans towards the cap. The over-hedging trap bites hardest on the swap, where surplus notional carries a live, two-sided obligation right up to the point you pay to break it.
Breaking a swap costs its mark-to-market, which can be large when rates have fallen.
Breaking a swap on early repayment costs its mark-to-market value, which is the price of replacing the bank’s side of the trade at current rates. If the reference rate has fallen below your fixed rate, the swap is out of the money to you: you are locked into paying above the market, and unwinding it early crystallises that loss as a cash break cost. If rates have risen above your fixed rate the swap is in the money and the break can pay you, but the case that hurts is the one that usually coincides with wanting out, when rates have fallen and you refinance to chase them. The break cost is not a penalty the bank invented; it is the economic value of the remaining fixed payments, and it exists whether the loan is prepaid, refinanced or accelerated.
The size scales with the notional, how far rates have moved, and the remaining life of the swap: roughly notional times the rate move times the years left. On the illustrative £6m swap above, with about a year and a half of average life remaining, a one percentage point adverse move is very approximately £6m times 1% times 1.5, near £90,000 to unwind. That is an order-of-magnitude figure, not a quote, but it shows why the break cost belongs in any early-repayment sum well before you sign the refinancing. Where the break sits alongside a prepayment fee, both land on the same day, and the combined bill is what our hub answer on the all-in cost of debt treats as the true cost of exit.
A cap has no break cost. The premium is spent at the start, so terminating early simply forfeits any residual value the cap still holds, which can even be sold on rather than surrendered. That clean exit is the cap’s structural advantage for a borrower who may repay early, and it is worth weighing against the swap’s zero upfront cost when the requirement lets you choose the instrument.
It depends on the agreement: a covenant is compulsory, a recommendation is not.
Whether hedging is mandatory depends on where it sits in the facilities agreement. Where it appears as a hedging covenant, a positive undertaking to put a hedge in place within a set period and keep it running, it is compulsory, and failing to comply is a breach that can become an event of default like any other. The clause will usually specify the minimum proportion, the minimum tenor and sometimes the acceptable instruments, and it is enforced whether or not rates ever move against you. Where hedging is only recommended, set out in a side letter or a mandate discussion rather than an undertaking, the decision is yours and there is no default risk in declining, though the lender’s view of the credit may still turn on it.
As a broad pattern, clearing and challenger banks are the ones most likely to hard-wire a hedging covenant into a term loan, because their pricing and capital treatment assume a contained rate exposure. Private-credit and fund lenders vary: some require it, some leave it to the borrower, and a few price the floating risk into the margin instead and ask for no hedge at all. These are category tendencies, not a ranking, and the only reliable source is the document in front of you. Read the hedging clause the way you read the covenant schedule, because it carries the same consequences.
Even where the hedge is optional, the question is not whether the lender insists but whether the risk is real for your business. A borrower running thin interest cover, with little room to absorb a rate rise before a covenant tightens, has a commercial reason to hedge that stands whatever the agreement says. One with heavy cover and a short remaining term may reasonably carry the floating exposure and keep the premium.
Negotiate the proportion, the tenor, the instrument and break-cost protection.
Negotiate four things, and settle them on the term sheet rather than after completion. The proportion comes first: push the required percentage towards the lower end of the range where your cover can carry some floating exposure, so you hedge the risk that matters and keep the benefit of a fall on the rest. The tenor comes second: a hedge matched to the front, heaviest years of an amortising loan usually protects more per pound of cost than one stretched over the full term, and a shorter tenor is easier to unwind if you repay early.
The instrument comes third: keep the freedom to choose a cap rather than a swap if optionality matters to you, and make sure the notional amortises in step with the loan so you never drift into an over-hedged position. Break-cost protection comes fourth and is the one borrowers most often miss. Ask that the hedge notional reduce automatically on any prepayment, that the agreement not force you to hold a hedge over debt you have repaid, and understand before signing how a mark-to-market break would be calculated. Where you can, keep the freedom to place the hedge with a counterparty other than the lender, which introduces price tension on both the rate and the break. These points sit naturally inside the wider drafting fight our guide to term-sheet negotiation walks through.
We will read the hedging clause with your numbers in hand.
If a lender has put a hedging requirement in front of you, or you are weighing a swap against a cap, a first conversation is confidential and costs nothing. We size the hedge to the real risk in your forecast, test the proportion and tenor against your cover, and negotiate the clause and its break-cost protection as part of the wider term sheet, lender-agnostic and on your side of the table. See how a mandate runs in how we work, or the full range of what we advise on in our services.
The terms in this guide
Each is defined in full in the library, with the levels and conventions that apply at £3-15m.
- Debt service cover ratio (DSCR)
DSCR measures the cash available to service debt against everything the debt costs in the period, interest plus scheduled repayment. It is the tightest of the common covenants because it is the only one that counts amortisation.
- Interest cover
Interest cover measures earnings against the interest bill alone. It is the covenant most exposed to the cost of money rather than to trading, which is why a rate rise can move it when nothing about the business has changed.
- SONIA
SONIA is the sterling reference rate almost every floating UK business loan is priced over. Your margin is fixed at signing; SONIA is not, and it moves your interest bill without anyone renegotiating anything.
- Term sheet
A term sheet sets out the terms a lender will lend on. Most of it is not binding, a few clauses are, and your negotiating leverage peaks in the moment before you grant exclusivity.