Mortgage Types Compared: 30-Year Fixed, 15-Year Fixed, ARM, FHA, VA, and USDA Loans

Not all mortgages are created equal — and the difference between the right and wrong loan type can mean $50,000+ in additional costs or qualification barriers. The main variables are: fixed vs. adjustable rate, loan term (15 vs. 30 years), and loan program (conventional, FHA, VA, USDA). Your credit score, down payment amount, military status, and how long you plan to stay in the home all affect which mortgage type delivers the best outcome. Understanding the trade-offs before applying allows you to optimize rather than simply accepting whatever the first lender offers.

Major Mortgage Types Explained

• 30-Year Fixed Conventional

  Most popular mortgage in the U.S. Fixed rate and payment for 30 years provides predictability and maximum affordability (lowest required monthly payment of any fixed option). Best for buyers planning to stay 7+ years. Requires 620+ credit and typically 3–5% down (with PMI below 20%). Total interest paid: approximately 100% of loan amount over life.

• 15-Year Fixed Conventional

  Same predictability as 30-year, but paid off in half the time. Rate is typically 0.5–0.75% lower than 30-year. On a $400,000 loan, total interest on 15-year: ~$178,000 vs. ~$477,000 for 30-year — saving $299,000. Monthly payment approximately 40% higher than 30-year. Best for buyers with strong income who prioritize equity building and total cost minimization.

• FHA Loan

  Government-backed loan for buyers with lower credit scores or smaller down payments. Minimum: 580 credit score + 3.5% down, or 500 credit + 10% down. Mortgage insurance premium (MIP): 1.75% upfront + 0.55%/year for life of loan (if down payment under 10%). Best for first-time buyers who can't yet qualify for conventional loans.

• VA Loan

  For veterans, active duty military, and surviving spouses. No down payment required, no PMI, competitive rates (typically 0.25–0.5% below conventional). Funding fee: 1.25–3.3% of loan (waived for disabled veterans). Maximum loan: $766,550 in most areas ($1,149,825 in high-cost areas). The best mortgage on the market for those who qualify.

• Adjustable Rate Mortgage (ARM)

  Initial fixed period (5, 7, or 10 years) at a rate typically 0.5–1.5% below 30-year fixed, then adjusts annually based on an index. 5/1 ARM: fixed 5 years, adjusts every year after. Caps: 2% per adjustment, 5% lifetime typically. Best for buyers who will sell or refinance before the fixed period ends. Risky if you stay longer.

VA loan always wins if you're eligible — no down payment, no PMI, best rates. If not eligible, FHA makes sense only if your credit score is below 680 (FHA rates beat conventional at lower scores) or you cannot come up with more than 3% down. Above 680 credit with 5%+ down, conventional typically beats FHA on total cost because conventional PMI cancels at 20% equity while FHA MIP runs for the life of the loan. Choose 15-year fixed if your payment at the 15-year term stays under 25% of take-home pay — the interest savings are substantial. Choose 30-year fixed otherwise. ARM only for those with high certainty they'll sell within the fixed period.