How Interest-Only Loans Work
A complete guide to interest-only lending—how it works, who it's for, and the risks you need to understand before signing.
Interest-Only Loans: The Basics
An interest-only (IO) loan lets you pay just the interest for an initial period—typically 5 to 10 years. During this time, your monthly payment is lower because you're not paying down the principal. After the IO period ends, you begin making fully amortizing payments (principal + interest).
Types of Interest-Only Loans
- IO Mortgages: Residential mortgages with a 5–10 year IO period, then 20–25 years of amortization
- HELOCs: Home equity lines typically have an IO draw period followed by a repayment period
- Commercial Loans: Many commercial real estate loans are structured with IO periods
- Bridge Loans: Short-term IO loans used for property acquisitions or construction
Pros and Cons
✅ Advantages
- Lower initial monthly payments
- More cash for investments or reserves
- Flexibility—pay extra principal when you want
- Useful for investors with fluctuating income
❌ Risks
- No equity built during IO period
- Payment shock when IO period ends
- Risk of negative equity if values drop
- Must refinance or pay balloon at maturity
Who Should Consider IO Loans?
IO loans work best for: real estate investors focused on cash flow, high earners expecting income growth, self-employed borrowers with variable income, and anyone with a clear exit strategy (sale, refinance, or payoff plan).
Frequently Asked Questions
What is an interest-only loan?\u25BE
A loan where you pay only interest for a set period (5-10 years). After that, you begin paying principal + interest.
Are interest-only loans a good idea?\u25BE
They can be for investors and high earners needing flexibility, but carry risk if you can't refinance or pay the balloon at the end.