Choosing a mortgage is one of the most consequential financial decisions you'll make. With dozens of loan programs available — each with different rules, rates, and requirements — it's easy to feel overwhelmed. This guide breaks down every major mortgage type so you can walk into a lender's office knowing exactly what to ask for.
1. Fixed-Rate Mortgage
A fixed-rate mortgage locks in your interest rate for the entire life of the loan. Whether you choose a 15-year or 30-year term, your principal and interest payment never changes. This is the most popular mortgage type in the United States for good reason: predictability. You always know exactly what you owe.
- Best for: Buyers planning to stay in the home long-term, or anyone who values payment certainty.
- 30-year fixed: Lower monthly payments, but you pay significantly more total interest. Good for maximizing monthly cash flow.
- 15-year fixed: Higher payments, but you build equity twice as fast and save tens of thousands in interest. Best if you can comfortably afford the higher payment.
💡 Pro tip: On a $350,000 loan, a 15-year at 6.0% costs about $2,955/month vs. a 30-year at 6.5% at about $2,212/month — but you save over $150,000 in total interest. Use DIYLoanCalc's Compare tool to see the exact difference for your numbers.
2. Adjustable-Rate Mortgage (ARM)
An ARM starts with a fixed rate for an initial period (typically 5, 7, or 10 years), then adjusts annually based on a benchmark index. The most common type is the 5/1 ARM — fixed for 5 years, then adjusts every 1 year afterward.
ARMs are priced lower than fixed rates initially, sometimes by 0.5% to 1.5%. That difference can translate to hundreds of dollars per month in savings during the fixed period.
- Best for: Buyers who plan to sell or refinance within 5–7 years, or those expecting rates to fall.
- Risk: When the rate adjusts, it can increase significantly. Most ARMs have caps (e.g., 2% per adjustment, 6% lifetime), but even a 2% jump adds hundreds to your payment.
3. FHA Loan
Backed by the Federal Housing Administration, FHA loans are designed to help first-time and lower-income buyers access homeownership with less-than-perfect credit. Key features include:
- Down payment as low as 3.5% with a credit score of 580+
- Down payment of 10% if your score is 500–579
- More flexible debt-to-income ratio requirements
- Requires both upfront MIP (mortgage insurance premium) of 1.75% and annual MIP of 0.55–1.05%
Best for: First-time buyers with limited savings or credit scores below 680. The trade-off is the mandatory mortgage insurance, which can add $100–$250/month and is often required for the life of the loan if you put less than 10% down.
4. VA Loan
Available to eligible veterans, active-duty service members, and surviving spouses, VA loans are backed by the Department of Veterans Affairs and offer extraordinary terms that simply don't exist elsewhere:
- No down payment required
- No private mortgage insurance (PMI)
- Competitive interest rates — often below conventional loan rates
- Limits on closing costs
There is a one-time VA funding fee (typically 1.25%–3.3% of the loan amount), but it can be rolled into the loan. If you qualify, a VA loan is almost always the best option available.
💡 Pro tip: VA loans can be used multiple times throughout your life, and eligible surviving spouses of veterans killed in service also qualify.
5. USDA Loan
The U.S. Department of Agriculture offers loans for buyers in eligible rural and some suburban areas. Like VA loans, USDA loans require no down payment and offer low rates. There are two types: guaranteed loans (through private lenders, most common) and direct loans (through USDA itself, for very low-income borrowers).
- Best for: Buyers in rural or suburban areas who meet income limits (generally up to 115% of area median income).
- Requires an upfront guarantee fee (1%) and annual fee (0.35%) — much lower than FHA's MIP.
6. Jumbo Loan
When you need to borrow more than the conforming loan limit (currently $766,550 in most counties, higher in expensive markets like San Francisco or New York), you need a jumbo loan. These are not backed by Fannie Mae or Freddie Mac, so lenders assume more risk and requirements are stricter:
- Credit score of 700+ (many lenders require 720 or higher)
- Down payment of at least 10–20%
- Cash reserves of 6–12 months of payments
- Lower DTI ratios than conventional loans
7. Conventional Loan
A conventional loan is any mortgage not backed by a government agency (FHA, VA, or USDA). Most are conforming — meaning they meet Fannie Mae and Freddie Mac standards and fall under the conforming loan limit. Requirements include:
- Minimum credit score of 620 (680+ for the best rates)
- Down payment of 3–20%
- PMI required if down payment is under 20% — but PMI can be cancelled once you reach 20% equity
Best for: Buyers with good credit and a solid down payment who don't qualify for VA or USDA programs.
How to Choose the Right Mortgage
Here's a simple decision framework:
- Are you a veteran or active-duty military? Start with a VA loan — it's almost certainly your best option.
- Buying in a rural area? Check USDA loan eligibility before anything else.
- Credit score under 680 or limited savings? FHA loans will likely offer the most accessible terms.
- Good credit and 20%+ down? A conventional fixed-rate loan gives you the cleanest deal — no PMI, competitive rates.
- Planning to move within 5–7 years? Consider an ARM to take advantage of the lower initial rate.
- Buying a high-value property? You'll need a jumbo loan if the purchase price exceeds conforming limits.
🏠 Next step: Once you know which mortgage type fits, use DIYLoanCalc's mortgage calculator to estimate your monthly payment, total interest, and complete amortization schedule — adjust the rate, term, and down payment to find the combination that works for your budget.