Definition
An interest-only loan is a financing structure where the borrower's monthly payments consist solely of interest charges, with no reduction of the principal balance. The full loan principal is due at maturity as a balloon payment, typically repaid through refinancing or property sale. Interest-only structures are extremely common in commercial real estate, particularly for bridge loans, construction loans, and the initial years of permanent financing. The primary advantage of IO loans is cash flow flexibility — by eliminating the principal amortization component, monthly payments are significantly lower, leaving more cash available for renovations, lease-up expenses, or distributions to investors. For a $10,000,000 loan at 8%, an interest-only payment would be approximately $66,667 per month, compared to approximately $73,376 with 30-year amortization. However, the trade-off is that the borrower builds no equity through loan paydown during the IO period and must repay (or refinance) the full original loan amount at maturity.
How It Works
When structuring a loan, the lender and borrower agree on an interest-only period (which may be the full term for bridge loans, or 1-5 years for permanent loans). During this period, the borrower pays only monthly interest. After the IO period expires (if applicable), the loan converts to an amortizing structure where payments include both principal and interest. For bridge loans, the entire term is typically interest-only, with the expectation that the borrower will refinance into permanent debt or sell the property before maturity.
Example
A sponsor secures a $7,000,000 bridge loan at 9.5% interest-only for 24 months. Monthly interest payment: $7,000,000 x 9.5% / 12 = $55,417. Over the 24-month term, total interest paid is $1,330,000. At maturity, the sponsor owes the full $7,000,000 principal, which they refinance into a permanent loan with a 30-year amortization schedule. If the same loan had 25-year amortization from day one, monthly payments would be approximately $61,400 — nearly $6,000 more per month.
Why It Matters
Interest-only structures are essential for transitional real estate strategies. During renovation or lease-up, when a property may not be generating full income, lower IO payments reduce the cash flow burden on the sponsor. This preserves capital for improvements and reduces the risk of default during the business plan execution period. Understanding IO loans helps sponsors model cash flows accurately and select the right financing structure for each deal phase.
H Equities
H Equities structures most bridge loans as interest-only, providing sponsors with maximum cash flow flexibility during the transitional period. Learn more
Frequently Asked Questions
Are all bridge loans interest-only?
Most bridge loans are structured as interest-only for the full term. This is standard practice because bridge loans are short-term and the borrower plans to refinance or sell before maturity, making amortization unnecessary.
What happens at the end of the interest-only period?
For bridge loans, the full principal is due at maturity (balloon payment). For permanent loans with an initial IO period, the loan typically converts to amortizing payments (principal + interest) for the remaining term.
Is interest-only more expensive overall?
Monthly payments are lower, but total interest paid can be higher because the principal balance never decreases during the IO period. The key benefit is cash flow flexibility during the transitional period, not total interest savings.
Related Terms
Bridge Loan in Commercial Real Estate
A short-term loan (typically 6-36 months) used to "bridge" the gap between acquiring or repositioning a property and securing permanent financing.
Senior Debt in Commercial Real Estate
The first mortgage or primary loan on a property, holding the highest priority claim on cash flow and sale proceeds in the capital stack.
Common CRE Bridge Loan Terms
The duration and structural features of a bridge loan, including term length, extension options, interest rate structure, prepayment provisions, and reserve requirements.
Debt Service Coverage Ratio (DSCR)
A metric that measures a property's net operating income relative to its total debt obligations, indicating the property's ability to service its debt.
Permanent Financing in CRE
Long-term financing (5-30 years) for stabilized commercial properties, replacing bridge or construction loans with lower rates and amortizing payment structures.