Pricing
PIK (payment in kind)
PIK interest is not paid in cash. It is added to the principal and repaid at the end, which protects cash flow today and enlarges the debt you have to refinance later.
Also called payment-in-kind interest · PIK toggle · rolled-up interest · accrued interest
PIK does not remove the interest, it defers it. A £3m tranche accruing 6% repays around £4m after five years.
| Year | Balance outstanding |
|---|---|
| Drawdown | £3m |
| Year 1 | £3.18m |
| Year 2 | £3.37m |
| Year 3 | £3.57m |
| Year 4 | £3.79m |
| Year 5 | £4.01m |
Illustrative arithmetic on a 6% PIK accrual, compounded annually. Not a representation of any particular facility.
What PIK buys and what it costs
A junior lender pricing in the low to mid teens knows a borrower cannot service that in cash while also servicing senior debt. Splitting the coupon solves it: part is paid quarterly in cash, part accrues to principal. A business carrying senior amortisation alongside a junior tranche keeps its cash for trading, and the junior lender still earns its return.
The cost is that the debt grows while you hold it. Interest accrues on interest, so the balance compounds. A tranche drawn at £3m with 6% accruing repays around £4m after five years, and that larger number is what has to be refinanced or sold into at exit. PIK is not cheap money; it is expensive money whose bill arrives later.
Where PIK sits in a structure
Payment in kind is a payment mechanic rather than an instrument, and it appears at several points in a capital structure with different consequences at each.
Mezzanine is the classic home: secured, dated, ranking behind the senior facility, with the coupon split between cash and PIK. Holdco notes sit at a holding company above the operating group, structurally subordinated to everything at the trading company, and are commonly all-PIK because the holdco has no trading cash of its own. Preferred equity accrues a dividend rather than interest, which is economically similar but legally different and ranks last. Occasionally a small PIK margin appears on a stretched senior or unitranche facility as a way of reaching leverage the cash coupon could not support.
The distinction matters because subordination and payment mechanic are separate questions. All-PIK holdco debt is riskier for the lender than split-coupon mezzanine at the operating company, and priced accordingly.
The point of the split is the first column. All-cash costs £390k a year; the split costs £210k and defers the rest.
| Construction | Cash cost in year one |
|---|---|
| All cash pay | £390k |
| 7% cash / 6% PIK | £210k |
| All PIK | £0k |
Illustrative: £3m tranche at 13% all-in, first-year cash cost. Derived arithmetic.
Where the split usually lands
On UK mezzanine at £3-15m the construction is commonly a cash margin over SONIA plus a PIK element on top, with the two together landing in the low to mid teens all-in. A 7% cash and 6% PIK split is a recognisable shape, though the balance moves with leverage, sector and how much cash the senior facility already absorbs.
The more senior amortisation a business carries, the more the junior lender is pushed toward PIK, because there is less cash left to pay them with. That is worth understanding before you negotiate: the split is often set by what the senior structure leaves behind rather than by anyone's preference. Where the senior facility is bullet rather than amortising, more of the junior coupon can usually be paid in cash, which reduces the compounding.
Annual against quarterly compounding
How often the PIK capitalises is a small clause with a real cost. Annual compounding at 6% turns £3m into about £4.02m over five years. Quarterly compounding on the same rate produces roughly £4.04m, and the gap widens as the rate rises and the term lengthens.
On a five-year £3m tranche the difference is tens of thousands of pounds rather than hundreds, so it is not usually the point to spend negotiating capital on. It is worth knowing which you have agreed, because the modelled exit equity value moves with it, and a model built on annual compounding against an agreement specifying quarterly will understate the repayment.
Does accrued PIK count toward leverage
This is the question with the sharpest consequences and it is answered in the definitions, not the pricing.
If accrued PIK counts as debt for the leverage covenant, the balance grows every quarter without the business doing anything, which erodes headroom on a schedule of its own. Combined with a step-down covenant, a borrower can be squeezed from both directions: the covenant tightens while the numerator rises. If accrued PIK is excluded, or if only the senior leverage test binds, the effect is contained.
Where PIK counts, model the covenant against the accreting balance rather than the drawn amount. A structure that passes on day one at 4.2x total leverage can fail in year three on unchanged trading purely through accretion.
PIK is not one instrument. It appears at three points in a structure, and its consequences differ at each.
| Instrument | How PIK appears |
|---|---|
| Unitranche / senior stretch | Occasional small PIK margin |
| Mezzanine | Split cash pay and PIK |
| Holdco notes | Commonly all PIK |
| Preferred equity | Accruing dividend |
Market convention at £3-15m. Structures vary.
The PIK toggle
A toggle gives the borrower an election, usually annually, to pay a period's interest in cash or roll it up. It is priced: the PIK rate is set above the cash rate, so choosing to roll costs more than choosing to pay.
It earns its place where cash flow is lumpy in a way you can see coming, such as a capex programme or an acquisition year. It is worth less where the business is stable, because you pay a standing premium for an option you never exercise. Where a toggle is agreed, check whether the election is unconditional or subject to no default having occurred, since a conditional toggle disappears precisely when it would be most useful.
Prepayment, and the crystallisation trap
Accrued PIK is principal, and on early repayment it usually falls due in full alongside the original advance. A borrower refinancing in year three can find several hundred thousand pounds of rolled-up interest crystallising as a cash payment at exactly the moment they were trying to reduce cash cost.
Layer prepayment protection on top and the number grows again: a non-call period or a make-whole is typically calculated on the outstanding balance, which by then includes the accrued PIK. The two provisions compound each other, and modelling a year-three refinancing before signing is the way to see it.
Tax, and the exit arithmetic
UK interest is generally deductible whether paid in cash or rolled up, subject to the corporate interest restriction and to the various anti-avoidance and unallowable purpose rules. Timing differences can arise between the accounting and tax treatment of accrued amounts, and connected-party and late-paid interest rules can defer relief. None of that is uniform, and it is a question for the borrower's own tax advisers on the specific structure rather than something to assume from a general position.
The commercial point sits at exit. PIK converts an income cost into a capital repayment, which means it is paid out of enterprise value rather than out of trading cash. On a sale, every pound of accrued PIK is a pound less of equity proceeds. That is the honest way to evaluate it: not as cheaper debt, but as a transfer of cost from the trading years to the shareholders' exit.
Common questions
What does PIK stand for?
Payment in kind. Rather than paying the interest in cash each quarter, the borrower adds it to the principal and repays it at the end. The lender is paid in more debt rather than in money, which is where the phrase comes from.
Is PIK interest cheaper than cash interest?
No. It is usually priced above the cash rate, and because it compounds, the total cost is higher. What it buys is cash flow relief during the life of the facility. A £3m tranche accruing 6% repays around £4m after five years, so the saving in the trading years is repaid with interest at the end.
Where does PIK appear in a capital structure?
Most commonly on mezzanine, secured and dated behind the senior facility, with the coupon split between cash and PIK. It also appears on holdco notes, which sit structurally behind the operating company and are often all-PIK, and on preferred equity as an accruing dividend. A small PIK margin occasionally sits on a stretched senior or unitranche facility.
Does accrued PIK count towards my leverage covenant?
It depends on the definition of debt in your agreement, and it is one of the most consequential points to settle. If it counts, the balance grows every quarter without the business doing anything, eroding headroom on its own schedule. Combined with a step-down covenant that can produce a breach on unchanged trading, so model the covenant against the accreting balance rather than the drawn amount.
What is a PIK toggle?
An election, usually annual, letting the borrower choose whether to pay a period's interest in cash or roll it up. The PIK rate is set above the cash rate, so the option is paid for. It earns its place where cash flow is lumpy in a foreseeable way, such as a capex or acquisition year, and is worth less in a stable business.
What happens to accrued PIK if I repay early?
It is principal, so it generally falls due in full alongside the original advance. A borrower refinancing in year three can find several hundred thousand pounds crystallising as a cash payment. If prepayment protection applies, it is typically calculated on the outstanding balance including the accrued PIK, so the two provisions compound.
Is PIK interest tax deductible in the UK?
UK interest is generally deductible whether paid in cash or accrued, but the position is subject to the corporate interest restriction and to anti-avoidance rules, and timing differences can arise between accounting and tax treatment. Connected-party and late-paid interest rules can defer relief. It is a question for your own tax advisers on the specific structure rather than a general assumption.
How much does the compounding frequency matter?
Less than most people expect at this size. On a five-year £3m tranche at 6%, quarterly rather than annual compounding costs tens of thousands rather than hundreds. It matters mainly for model accuracy: a model built on annual compounding against an agreement specifying quarterly will understate the repayment at exit.
The full treatment sits in the guide: mezzanine vs preferred equity.
This page explains a term as it is used in the UK lower-mid-market. It is general information, not advice on any particular facility. Terms vary between lenders and between deals, and the drafting in your own agreement governs.