Glossary · Structure

Interest-only (IO)

Also called: IO, interest-only period, interest-only loan, non-amortizing loan

Defined by the Research desk, The Lender Report · Sources reviewed

A loan, or a stretch of a loan's term, in which payments cover interest alone and the principal balance does not go down.

On interest-only terms the payment is the balance times the rate, with nothing going to principal. On $1,000,000 at 6 percent that is $5,000 a month, against about $6,443 on a 25-year amortizing schedule. The whole $1,000,000 is still owed at the end.

Lenders use interest-only periods where a property cannot yet carry principal: during construction, and while a building leases up or is renovated. Some permanent loans also start with an interest-only stretch.

The OCC’s handbook for examiners sets out how banks are expected to treat it. Interest-only tenors are typically shorter than amortizing loans, usually three to five years at most. Even when the loan allows interest-only payments, the property should meet the bank’s coverage requirement as though the loan were amortizing, and loan-to-value and coverage standards are generally more conservative for interest-only loans. The handbook’s own mitigant is a smaller loan: in its example, $899,000 in place of $1,000,000.

So expect a lender to quote coverage on an amortizing payment even if you will pay interest only.

How it shows up in the data here

Partly public. HMDA rows flag interest-only payments, but that flag is not shown on this site, and call reports and credit union filings carry no payment terms. What you can see here is who made loans like yours: loan comps lists lenders by loans made with the median reported rate and term. Compare an interest-only payment with an amortizing one in the amortization and balloon calculator.

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Related terms

Sources

  1. OCC Comptroller's Handbook, Commercial Real Estate Lending, Version 2.0 (Amortization, pp. 40-41, and the paragraph on interest-only tenors, p. 40), published .

Plain definitions for orientation, not legal, tax or credit advice. A lender's own policy decides what it will do.