PIK and cash-pay interest
Understand payment-in-kind interest, cash-pay interest, compounding and how growth credit facilities can combine different forms of interest.
In brief
- Cash-pay interest leaves the business on payment dates; PIK interest is added to principal and paid or refinanced later.
- PIK preserves near-term liquidity but increases outstanding debt and can compound when interest is charged on capitalised interest.
- Missed cash interest does not automatically become PIK: the loan must expressly allow capitalisation or the lender must agree an amendment.
- Model cash interest, PIK, covenant effects and the final repayment under base and downside cases before choosing the mix.
In this guide
- The basic difference
- How cash-pay interest works
- How PIK interest works
- Accrued, unpaid and capitalised interest
- A simple £5 million example
- PIK toggles
- Why borrowers use PIK
- Why lenders accept PIK
- When PIK becomes risky
- Effect on leverage and covenants
- Maturity and refinancing risk
- Prepayment and default
- Accounting, tax and reporting
- Questions to ask
- The bottom line
- Where to go next
Cash-pay interest uses cash during the life of a loan. Payment-in-kind interest, usually shortened to PIK, is added to the debt instead. PIK can preserve liquidity today, but it increases the amount that must eventually be repaid or refinanced.
The useful comparison is not 'pay or do not pay'. It is cash timing, total debt and the source of the final payment.
The basic difference
| Interest form | What happens on a payment date | Effect on the borrower |
|---|---|---|
| Cash-pay | Accrued interest is paid in cash. | Uses liquidity now while leaving principal unchanged, before any scheduled principal repayment. |
| PIK | Accrued interest is capitalised, meaning it is added to principal. | Reduces current cash use but increases outstanding debt. |
| Cash and PIK split | One part is paid in cash and the other is added to principal. | Balances near-term liquidity with a growing future obligation. |
| PIK toggle | The documents allow a change between cash and PIK, subject to agreed conditions. | Creates optionality, often with a higher rate or other consequences when PIK is chosen. |
Cash-pay and PIK describe the method of settling interest. They are separate from whether the base rate is fixed or floating and from the dates on which interest is calculated.
How cash-pay interest works
Cash-pay interest accrues over an interest period and is paid on the scheduled interest payment date. The amount usually depends on outstanding principal, the applicable rate and the day-count convention.
A floating cash rate may be a reference rate plus a margin. A fixed rate remains the stated percentage for the agreed period. Floors, default interest and rate resets can change the actual amount.
Cash interest reduces runway because it leaves the bank account. Include payment dates, not just annual expense, in the cash forecast.
How PIK interest works
PIK interest accrues at the contractual rate and is capitalised on agreed dates. Once added to principal, it is generally payable at maturity or earlier repayment unless the documents provide another route.
If later interest is calculated on the increased principal, the PIK amount itself earns interest. This is compounding: interest is charged on earlier capitalised interest as well as the original borrowing.
The agreement should state the PIK rate, capitalisation dates, whether it is mandatory or optional, how it ranks, when it becomes cash payable and whether it counts as principal for covenants, prepayment and fees.
Accrued, unpaid and capitalised interest
Accrued interest is interest earned by the lender since the last payment or capitalisation date. It may not yet be due.
Unpaid cash interest is different. If cash interest is due and not paid, a payment default may occur after any applicable grace period. The borrower cannot normally treat missed cash interest as PIK unless the documents or a lender amendment allow it.
Capitalised interest is interest formally added to principal under the agreed PIK mechanism. Keep these categories separate in the debt schedule.
A simple £5 million example
Assume a £5 million loan runs for two years with annual interest periods and no principal amortisation. Ignore fees, day-count differences and tax. Compare a 10% cash-pay loan with a 5% cash plus 5% PIK loan. In both cases, the stated total rate starts at 10%.
| End of year | 10% cash-pay | 5% cash plus 5% PIK |
|---|---|---|
| Year 1 | £500,000 cash interest; principal remains £5,000,000 | £250,000 cash interest; £250,000 PIK added; principal becomes £5,250,000 |
| Year 2 | £500,000 cash interest; principal remains £5,000,000 | £262,500 cash interest; £262,500 PIK added; principal becomes £5,512,500 |
| Two-year result | £1,000,000 cash interest paid; £5,000,000 principal due | £512,500 cash interest paid; £5,512,500 principal due |
The split structure preserves £487,500 of cash during the two years, but leaves £512,500 more principal due. The extra £25,000 is the effect of compounding in this simplified example.
That preserved cash only creates value if it supports a plan that can meet the larger final obligation. PIK does not remove the cost; it moves cash payment later and can increase it.
PIK toggles
A PIK toggle gives the borrower or, less commonly, another party a right to choose PIK for an interest period under specified conditions. The cash rate may step up when the toggle is used.
Confirm the election deadline, notice form, number of permitted uses and whether PIK is blocked after a default. Also test whether choosing PIK tightens covenants, changes prepayment cost or signals financial stress to investors and other lenders.
Optional PIK is not useful if the board assumes it can be elected but the documents require lender consent. Put the legal trigger into the cash-control calendar.
Why borrowers use PIK
PIK may fit an investment that needs time before producing cash, such as a long product-development cycle, an acquisition integration or a bridge to a defined transaction.
It can also support a company whose enterprise value and repayment plan are credible but whose near-term cash flow is intentionally directed towards growth.
The case should be expressed in cash terms: how much liquidity is preserved, what milestone it funds and what committed or realistically supportable source repays the higher balance.
Why lenders accept PIK
A lender may accept PIK because it increases contractual return and allows the borrower to retain operating cash. The rate, security, ranking, equity cushion and expected repayment sources affect the decision.
PIK also increases credit exposure without sending new cash to the borrower. The lender remains at risk that the capitalised amount will not be collected.
PIK can be agreed at origination or introduced in an amendment when a borrower is stressed. In the latter case, it may provide breathing space while also postponing a more difficult repayment decision.
When PIK becomes risky
PIK is most dangerous when it finances recurring losses without a credible route to positive cash flow, equity, a sale or refinancing.
Warning signs include a growing maturity payment, repeated extensions, use of PIK merely to avoid a payment default, and a forecast that assumes enterprise value will rise despite missed operating milestones.
PIK can also reduce future financing flexibility. A new investor or lender will examine the enlarged debt balance and how much new money would be used to repay it.
Effect on leverage and covenants
Leverage measures debt relative to an agreed financial measure or value. Because PIK increases debt, it can reduce covenant headroom even though no cash leaves the business on the capitalisation date.
Check whether capitalised PIK is included in total debt, net debt, secured debt and other covenant definitions. Also confirm whether PIK counts towards debt baskets and borrowing limits.
Liquidity covenants may improve in the near term because cash is preserved, while leverage tests worsen as principal grows. Model both effects together.
Maturity and refinancing risk
Maturity is the date on which remaining principal is due. A loan with PIK may build a much larger maturity wall than its initial principal suggests.
Show original principal, expected PIK, scheduled cash interest, amortisation and final principal for every month of the facility. Run downside cases with a later exit, lower valuation and more expensive refinance.
Do not assume a future lender will refinance capitalised interest. That lender will underwrite the company and market conditions at the time.
Prepayment and default
A prepayment may require payment of original principal, capitalised PIK, accrued interest and a premium or make-whole amount. Confirm whether future scheduled PIK or cash interest is also included in any prepayment formula.
Default interest may apply to overdue principal and interest. The agreement should state whether default interest itself compounds and whether it is cash payable.
If the company expects to refinance or sell before maturity, model the payoff at several dates. PIK can make an apparently short holding period more expensive than the headline rate implies.
Accounting, tax and reporting
PIK is non-cash in the payment period but is still an economic financing cost. It may be recognised in financial reporting before cash is paid and can affect tax, distributable reserves and covenant calculations.
The treatment varies with the instrument, accounting standards and jurisdiction. Finance teams should agree the accounting and tax position with their advisers before signing.
Report opening principal, cash interest, PIK accrued, PIK capitalised, principal repayments and closing principal separately. This lets the board see both liquidity and debt growth.
Questions to ask
- What portion of the rate is cash and what portion is PIK?
- Is PIK mandatory, optional or subject to lender consent?
- When is PIK capitalised, and which rates then apply to the increased principal?
- Does using a PIK toggle increase the rate or change another term?
- How does PIK affect covenants, debt baskets and available tranches?
- What amount is payable on each possible prepayment and maturity date?
- Can the company repay capitalised PIK early without repaying the whole facility?
- What is the credible source of cash for the enlarged balance?
The bottom line
Cash-pay interest costs liquidity now. PIK preserves that liquidity by adding interest to the debt, which can compound and increase the maturity or refinancing requirement.
Use PIK when the near-term cash has a clear purpose and the larger future payment has a credible source. Compare the full cash schedule and closing debt balance, not just the stated rates.
Where to go next
- Growth debt interest rates and costs builds a complete view of cash cost, fees and equity-linked value.
- Growth debt repayment structures compares interest-only periods, amortisation and maturity structures.
- Growth credit vs direct lending separates growth credit from the broader direct lending market.
- Growth debt term sheets explained shows how to read the whole offer before long-form documents.
The Stack
Venture debt and growth credit intelligence, in your inbox every Tuesday.
Continue learning
Events of default
A practical guide to the clauses that can put a growth debt or venture debt facility into default, the rights they create and the protections founders should negotiate.
Continue