15-Year vs 30-Year Mortgage: Which Saves You More?
Choosing between a 15-year and a 30-year mortgage is one of the biggest financial decisions you will make as a homebuyer. The loan term you select affects your monthly payment, total interest paid, and long-term wealth. In this guide we break down the numbers so you can make a confident choice.
How the Two Loan Terms Compare
The fundamental trade-off is simple: a 15-year mortgage has higher monthly payments but a lower interest rate and far less total interest. A 30-year mortgage has lower monthly payments but costs significantly more over the life of the loan.
Consider a $350,000 home loan:
- 15-year at 5.75%: Monthly payment of approximately $2,913. Total interest paid: roughly $174,300.
- 30-year at 6.50%: Monthly payment of approximately $2,212. Total interest paid: roughly $446,300.
The 15-year option costs about $700 more per month but saves you over $272,000 in interest over the life of the loan.
When a 15-Year Mortgage Makes Sense
A shorter loan term is ideal if you meet the following criteria:
- Your monthly income comfortably supports the higher payment without straining your budget.
- You have a fully funded emergency reserve of three to six months of expenses.
- You are not carrying high-interest debt such as credit cards or personal loans.
- You value being mortgage-free sooner, especially as you approach retirement.
When a 30-Year Mortgage Makes Sense
A longer term is often the smarter play if:
- You need the lower payment to qualify for the home you want.
- You plan to invest the monthly savings in assets that could earn more than your mortgage rate.
- You are early in your career and expect your income to grow substantially.
- You want maximum cash-flow flexibility for other goals such as starting a business or funding education.
The Hybrid Approach
Many savvy borrowers take a 30-year mortgage but make extra principal payments when they can. This gives you the flexibility of the lower required payment while letting you pay down the loan faster during good months. Even an extra $200 per month on a $350,000 loan at 6.5% can shave roughly seven years off the loan and save over $130,000 in interest.
Run Your Own Numbers
The best decision depends on your specific income, expenses, and financial goals. Use our mortgage calculator to model both scenarios side by side and see exactly how much each option costs you in monthly payments and total interest.
Whether you choose the accelerated payoff of a 15-year term or the flexibility of a 30-year loan, understanding the true cost of each option puts you in control of one of your largest lifetime expenses.