Interest Rate Risk in Private Debt: Refinancing Effects

What is interest rate risk in private debt?

Interest rate risk is the possibility that movements in market rates affect a company's financing cost, the relative return of an investment, or its level of risk. In crowdlending it is rarely a direct effect on a contract that has already been signed: it usually comes through the borrower's ability to refinance or through the terms of new loans, and it depends on the loan's features, the company's financial position, and the investment term.

If an investor funds a fixed-rate loan — as is the case with most SME projects in crowdlending — a rise in official rates does not change the interest agreed in the contract. The impact appears, if at all, when the company needs to refinance other debt or when new investment opportunities offer more attractive terms. To compare private debt with other fixed-income instruments, see how the two differ; here the focus is different: what happens within a single loan when market rates move.

How rate rises and falls affect borrowing companies

Central banks move interest rates to influence overall financial conditions. Those decisions can feed through to companies' financing costs, though not always immediately or in the same proportion. In private debt it is worth distinguishing three scenarios.

What happens when interest rates rise?

A high-rate environment can make financing more expensive, especially for companies that need to roll over loans or that carry variable-rate debt. If financing costs grow faster than revenue, a larger share of cash flow goes toward interest payments, which can reduce repayment capacity. Not every company is affected equally: a lightly indebted company with stable revenue withstands this better than one with thin margins.

What happens when interest rates fall?

A rate cut can ease costs for companies refinancing debt or holding variable-rate loans. For the investor, however, it means new loans may offer lower interest than before, so future opportunities could yield less. A rate cut also does not guarantee a lower risk of default: each company's debt level and revenue remain the determining factors.

What happens when rates stay stable?

A stable environment makes financial planning easier, but it does not remove credit risk or guarantee that a company can repay its loan. That is why looking only at central bank decisions is not enough to assess a private debt investment: the rate environment is context, not a substitute for analysing each loan.

Fixed vs. variable rates: differences for the investor

How the interest paid by the borrower is set affects the company's exposure to market movements and the predictability of the payments the investor receives.

Fixed-rate loans

The interest rate is set in advance and does not change during the contract, which lets the investor know the expected nominal return if the borrower meets its obligations. A rise in market rates does not change that interest, but it leaves two risks open: the opportunity cost relative to newer, higher-yielding loans, and the borrower's financial risk if it needs to refinance other obligations at higher rates. Most SME projects funded on Maclear are structured at a fixed rate for the full life of the loan, which gives the investor a payment schedule known from the start, although it does not remove the risk that the borrower may struggle to refinance other debt.

Variable-rate loans

The interest rate changes according to a reference index and the terms of the contract: if that index rises, the company pays more and its available margin shrinks; if it falls, the cost of the debt decreases. The final effect depends on how often the rate is reviewed and on the company's capacity to absorb the change. Before investing, it is worth checking whether the rate is fixed or variable; the project sheet usually specifies this alongside the other loan terms.

Refinancing risk and its impact on defaults

Refinancing risk arises when a company needs to replace maturing debt with new financing and cannot do so on favourable terms. It is particularly relevant when rates have risen since the original financing was arranged: the company may be forced to accept higher interest, provide additional collateral, or accept stricter conditions.

If its revenue and cash flow are sufficient, it can absorb the increase without trouble. But if it operates on thin margins, carries high debt, or depends on continuous financing, the situation can become more difficult. For the investor, this can translate into payment delays, renegotiations, or, in the worst case, partial or total loss of capital. Loan term matters, but it should be weighed together with the company's maturity schedule and its capacity to generate cash.

The €50 minimum investment per project on Maclear's primary market makes it possible to spread capital across loans with different maturities and different refinancing needs, instead of concentrating risk in a single company or a single point in the rate cycle. The borrower sheet, available before investing, details the term, the payment schedule and, where applicable, the associated collateral.

How interest rates influence the return on private loans

The return on a private debt investment depends on the agreed interest, the borrower's compliance, the associated costs, and the effective duration of the investment. Changes in market rates affect it in several ways: when rates rise, new loans may carry higher interest without automatically becoming more attractive on a risk-adjusted basis; when rates fall, other fixed-income alternatives may yield less, which makes private debt more attractive to those who accept its liquidity constraints.

A fixed-rate loan taken out earlier keeps paying the same interest even if the market has changed, so it is worth assessing whether that return is still adequate against the available alternatives, including the option of selling the loan on the Secondary Market before maturity, with a 2.5% fee charged to the seller and no guarantee of finding a buyer. A high nominal interest rate also does not equal a higher real return if the borrower struggles to pay, so comparing loans only by their interest rate can lead to the wrong conclusions.

What happens when interest rates fall, and reinvestment risk

A rate cut can benefit certain companies by lowering their financing cost and easing the refinancing of their debt, which could reduce their credit risk. The effect is not uniform: a company with structural profitability problems or excessive debt may keep struggling even in a low-rate environment.

In addition, the interest offered on new loans tends to decrease in that environment. Investors reinvesting the payments they receive may find opportunities with lower returns than before: this is reinvestment risk, the possibility that capital becoming available again must be placed on less favourable terms.

In crowdlending this risk is more noticeable than with a bond that has a single maturity date, because repayments arrive month by month, in dozens of small payments, not in one final repayment. Each instalment collected is reinvested again, so if a tool such as AutoInvest keeps reinvesting under the same criteria in a falling-rate environment, the whole portfolio can gradually shift toward loans with lower nominal interest without the investor changing anything manually; reviewing those criteria periodically is one way to respond to this risk.

Interest rate risk vs. credit risk: key differences

Although related, they are not the same thing. Interest rate risk refers to the effect of market movements on financing cost and relative return. Credit risk is the possibility that the borrower fails to pay interest or does not repay the capital as agreed.

The two can interact: a rise in rates can increase the financial expenses of an indebted company and, if its revenue is not enough to cover them, raise its credit risk. But the relationship is not automatic: a company with a solid financial position can withstand higher rates without jeopardising its payments, just as a company can default even when rates are falling.

Knowing the rate environment provides context, but it does not replace an analysis of the borrower's solvency. A higher nominal interest rate should not, by itself, be read as a lower-quality loan either; it is worth reviewing why a stricter credit rating does not always mean a lower rate before comparing projects purely on nominal return.

How to analyse a private debt loan under different rate scenarios

Before investing, it helps to check how the loan would behave under different economic conditions, without needing to predict exactly how rates will move next. This list, expanded in what to check before investing in a P2P loan, summarises the key points:

• Loan interest rate: whether it is fixed or variable and what conditions govern the payments.
• Term and maturity: how long the capital will be committed and when the company must repay it.
• Borrower's debt level: whether the financial burden is manageable if debt becomes more expensive.
• Cash generation capacity: revenue and cash flow sufficient to meet obligations.
• Refinancing needs: whether the company will need to roll over significant debt during the life of the investment.
• Collateral and protection mechanisms: what they cover and what collateral backs the loan and how to assess it; their presence does not remove the risk of loss.
• Diversification: avoiding an excessive share of the portfolio depending on a single company, sector or loan.
• Portfolio maturity schedule: checking that loans do not all mature in the same period, to avoid having to refinance or reinvest a large share of capital at a single point in the rate cycle.

Choosing a platform does not replace analysing each operation: it is worth reviewing the available documentation, the contractual terms and the specific risks of each loan, and not investing money that may be needed in the short term, since liquidity can be limited even with a Secondary Market available.

Practical example: a company that needs to refinance its debt

Suppose a company has a business loan of €500,000 maturing in one year. The current loan carries an annual interest rate of 4%, but the company will need to refinance it when it matures.

If it manages to renew the financing at 7%, the annual interest cost on that €500,000 would rise, in a simplified calculation, from €20,000 to €35,000. The difference would be €15,000 per year.

This increase does not necessarily mean the company will default on its obligations. If it generates enough cash flow, it could absorb the higher cost without trouble. However, if its margins are thin or its revenue declines, the extra interest could make it harder to meet its financial commitments.

From the investor's perspective, the example shows how a rate rise can affect a loan even when the interest the company pays is fixed. The risk arises from the future need to refinance, not because the original contract's rate changes automatically. It also illustrates why it is important to assess the borrower's financial position rather than looking only at the return offered by the loan.

Conclusion: understanding interest rates to invest with judgement

Interest rates influence private debt through companies' financing costs, the terms of new loans, and refinancing possibilities, which in turn affects borrowers' repayment capacity and, therefore, the risk taken on by investors. The impact depends on each operation: a fixed-rate loan offers predictability on the agreed interest, while a variable-rate loan passes part of the market's movements on to the borrower, but in both cases the company's solvency remains the determining factor.

Understanding how interest rate risk and credit risk interact makes it possible to better evaluate private debt opportunities, without mistaking an attractive interest rate for a necessarily sound investment.

Key takeaways

• In a fixed-rate loan, a rise in market rates does not change the agreed interest, but it can increase the risk that the borrower struggles to refinance in the future.
• Refinancing risk is more relevant when rates have risen since the original loan was signed, especially for companies with thin margins or high debt.
• Reinvestment risk appears when rates fall and returned capital has to be placed on less favourable terms; in crowdlending it is more noticeable because repayments arrive month by month, not in a single maturity.
• Interest rate risk and credit risk are related but not the same: the first affects financing cost and relative return, the second affects the probability of default.
• In the refinancing example at 7% versus the original 4%, the annual interest cost on €500,000 rises from €20,000 to €35,000, a difference of €15,000 a year.
• The €50 minimum investment per project and a staggered maturity schedule across the portfolio help spread refinancing and reinvestment risk across several companies and dates.

Frequently asked questions

Does a rate rise affect a loan I already hold at a fixed rate?

The interest the investor receives does not change because market rates rise, since it is fixed in the contract. The effect, if any, arrives indirectly: the borrowing company may find it harder to refinance other debt, which can raise its credit risk.

What is the difference between interest rate risk and credit risk?

Interest rate risk refers to the effect of market movements on financing cost and an investment's relative return. Credit risk is the possibility that the borrower fails to pay interest or repay capital, regardless of which way rates move.

What is reinvestment risk in crowdlending?

It is the possibility that capital returned by a loan — in monthly payments of principal and interest — has to be reinvested on less favourable terms if rates have fallen. In crowdlending it is more noticeable than in other instruments because repayments are frequent and constant, not a single final repayment.

Is a variable-rate loan always riskier than a fixed-rate one?

Not necessarily. A variable rate passes part of the market's movements on to the borrower, which can increase or reduce its financing cost depending on the environment. The real risk depends more on the company's solvency and its capacity to absorb those changes than on the type of interest rate chosen.

How can an investor reduce refinancing risk in their portfolio?

By diversifying across loans from different companies, sectors and maturity dates, so that not all of them coincide at the same point in the rate cycle. Reviewing the borrower's debt level, its collateral and its future refinancing needs before investing also helps identify operations more exposed to this risk.

The content of this article is provided for informational and educational purposes only. It does not constitute investment, financial, tax or legal advice. Peer-to-peer (P2P) lending and crowdlending investments carry a risk of partial or total loss of capital. Past performance does not predict future results. Liquidity on a secondary market is not guaranteed. Readers are invited to carry out their own research and consult qualified advisers before making any financial decision. The availability of products and services may be restricted in certain jurisdictions.