Why We Use Interest-Only Debt (and Where It Can Go Wrong)

Interest-only periods can meaningfully increase near-term cash flow and give operators more control over how capital is deployed. That flexibility comes with a tradeoff, however: you’re removing one of the built-in safeguards that has historically kept real estate investors out of trouble.

Amortization isn’t just about paying down a loan; it’s a form of forced de-risking. Each month, a portion of your payment reduces the loan balance, slowly building equity whether you intend to or not. For lenders, this reduces risk over time. Even if the property underperforms or market conditions shift, the loan balance is steadily declining, improving your position for a future refinance or sale.

Interest-only debt removes that safety mechanism. Instead of gradually de-risking the deal through principal paydown, the loan balance stays flat. In exchange, the owner retains more cash flow during the hold period.

I/O is appealing because it gives the operator full control over that capital. Rather than “locking” cash into the property via principal payments, you can choose how to allocate it: fund renovations, build reserves, distribute to investors, or simply maintain liquidity.

It’s also worth noting that principal paydown is made with after-tax dollars. Unlike interest expense, which is generally tax-deductible, principal payments don’t reduce your taxable income. That means every dollar going toward amortization has already been taxed at the investor level. In contrast, interest-only structures maximize deductible interest expense and keep more post-tax cash in the operator’s control.

Interest-only debt pairs particularly well with value-add deals, which is exactly how we approached our recent Hillcrest Place acquisition. We secured a 10-year loan with the first 5 years interest-only, alongside roughly $700K of capital earmarked for improvements.

Given that plan, we’re very comfortable not paying down principal during this period. We’re actively deploying that $700k into the property, an investment we expect to generate well in excess of its cost through forced appreciation. Instead of relying on gradual principal reduction to de-risk the deal, we’re doing it through execution: increasing NOI through renovations and operational improvements. As NOI grows, so does the property’s value, and our leverage naturally declines, even though the loan balance itself isn’t being amortized.

In other words, we already have a built-in path to de-leveraging the asset. Because of that, we don’t feel the need to also pay down principal during the early years of the hold. The interest-only period allows us to preserve liquidity and ensure the renovation plan is fully funded and executed without putting pressure on cash flow.

The discipline that amortization once provided now has to come from the operator. Without principal paydown, the deal's success depends more heavily on execution. If NOI doesn’t grow as expected, or if cap rates expand, you could be left with a loan balance that hasn’t changed against a property value that has. That’s when refinances become challenging. The “forced savings” that would have quietly improved your position over time are no longer there to bail you out.

That’s why the key with I/O debt is to stay disciplined. The goal isn’t to maximize short-term cash flow at all costs; you still need to be certain you will be at a comfortable leverage point when the loan comes due.

Amortization builds in a steady path to lower leverage, while I/O puts that responsibility on the operator. When paired with a clear plan, like executing a value-add strategy, I/O can be a powerful tool that enhances flexibility without sacrificing long-term stability. But without that discipline, it can just as easily expose a deal to unnecessary risk. The key is simple: if you’re going to take control of the capital, you also need to take ownership of the outcomes.

-Ben Michel

Ben Michel is the founder of Ridgeview Property Group, an investment firm specializing in multifamily real estate. Register Here to be notified of available investment opportunities.