The main types of home loans and how they differ
A home loan is a debt you take on to buy a house, and the type you choose determines how much you pay each month, how long you pay, and what happens if interest rates change. The three broad categories are fixed-rate loans (your payment stays the same for the entire loan), adjustable-rate mortgages (your payment can change after a set period), and government-backed loans (FHA, VA, or USDA loans that have different rules about down payments and who can borrow). Within each category, loans also vary by length — typically 15 years or 30 years — which changes both your monthly payment and the total interest you pay over time.
The loan type you can get depends on your credit score, income, how much money you have for a down payment, and whether you meet other requirements like military service or rural property location. A lender will tell you which types you may have access to for, but understanding what each one actually means helps you compare offers and know what you are signing up for.
Key Takeaways
- Fixed-rate loans lock in one monthly payment for the entire loan term, so you know exactly what you will pay every month for 15 or 30 years.
- Adjustable-rate mortgages start with a lower payment for 3 to 10 years, then the rate and payment can rise, sometimes significantly, when the fixed period ends.
- FHA loans require a smaller down payment (as low as 3.5 percent) but add mortgage insurance costs; VA loans are only for military members and require no down payment; USDA loans are for rural properties and also require no down payment.
- A 15-year loan has higher monthly payments but you pay much less interest overall; a 30-year loan has lower monthly payments but costs more in total interest.
- Your credit score, debt-to-income ratio, and down payment size determine which loan types a lender will offer you.
Fixed-rate mortgages: what stays the same and what doesn't
With a fixed-rate mortgage, your interest rate and monthly payment never change, no matter what happens to the broader economy or interest rates. If you borrow $300,000 at 6 percent interest on a 30-year fixed loan, your principal and interest payment will be the same in month one and month 360. This predictability makes budgeting straightforward — you know exactly what your housing payment will be for the next 15 or 30 years.
The trade-off is that fixed rates are usually higher than the starting rate on an adjustable-rate mortgage. If market interest rates drop, you are locked into your higher rate unless you refinance (take out a new loan to pay off the old one), which costs money and takes time. Fixed-rate loans are the most common type because the payment stability appeals to most borrowers, and they are available from conventional lenders, banks, and credit unions.
Adjustable-rate mortgages: the initial rate and what happens after
An adjustable-rate mortgage (ARM) starts with a lower interest rate than a fixed loan, usually for a set period called the fixed period — commonly 3, 5, 7, or 10 years. After that period ends, the rate adjusts periodically (usually once a year) based on a market index plus a margin the lender adds. Your monthly payment can rise substantially when the rate adjusts, and it can keep rising at each adjustment date until the loan ends.
ARMs are named by their structure: a "5/1 ARM" means the rate is fixed for 5 years, then adjusts once per year after that. A "7/1 ARM" fixes the rate for 7 years. Most ARMs have a rate cap — a limit on how much the rate can rise per adjustment and over the life of the loan — but even with a cap, your payment can increase by hundreds of dollars per month. ARMs make sense only if you plan to sell or refinance before the adjustable period begins, or if you are confident your income will rise enough to cover the higher payment.
FHA loans: lower down payments and mortgage insurance
An FHA loan is backed by the Federal Housing Administration and is designed for borrowers who have a smaller down payment or a lower credit score. You can put down as little as 3.5 percent of the home price, compared to the 10 to 20 percent often required for conventional loans. However, FHA loans require mortgage insurance — an extra monthly cost that protects the lender if you stop paying. You pay this insurance for the life of the loan if your down payment is less than 10 percent, or for at least 11 years if your down payment is 10 percent or more.
FHA loans have looser credit requirements than conventional loans — some lenders will work with credit scores as low as 580 — but the mortgage insurance makes the total monthly cost higher than it would be on a conventional loan with a larger down payment. The insurance is not optional; it is a condition of the loan. FHA loans can be fixed-rate or adjustable-rate, and they are available through banks, mortgage brokers, and credit unions that are FHA-approved.
VA loans: for military members and veterans
A VA loan is may provide by the U.S. Department of Veterans Affairs and is available only to military members on active duty, veterans, and some surviving spouses. The defining feature is that VA loans require no down payment — you can borrow the full purchase price of the home. There is no mortgage insurance requirement either, which makes the monthly payment lower than an FHA loan on the same property.
To use a VA loan, you must have a Certificate of may be able to access from the VA, which you can request online through the VA website or through your lender. VA loans can be fixed-rate or adjustable-rate, and the interest rates are often competitive because the VA may provide reduces the lender's risk. However, VA loans do include a funding fee — a one-time charge (usually 1 to 3 percent of the loan amount) that can be rolled into the loan or paid upfront. Some borrowers are exempt from the funding fee, including those receiving VA disability compensation.
USDA loans: for rural and some suburban properties
A USDA loan is backed by the U.S. Department of Agriculture and is meant for borrowers buying homes in rural areas or certain suburban areas that meet USDA population and income limits. Like VA loans, USDA loans require no down payment. They also do not require mortgage insurance in the traditional sense, but they do include a may provide fee — an upfront cost (usually around 1 percent) and an annual fee (around 0.35 percent) that protects the lender.
USDA loans have income limits that vary by location; you must earn no more than 115 percent of the area median income to may have access to. The property itself must meet USDA standards — it cannot be in an urban area, and it must be a single-family home. USDA loans are available through banks, credit unions, and mortgage lenders that are USDA-approved, and they can be fixed-rate or adjustable-rate.
15-year versus 30-year loans: the payment and interest trade-off
Most home loans come in two standard lengths: 15 years and 30 years. A 15-year loan has a higher monthly payment because you are paying off the debt in half the time, but you pay far less interest overall. A 30-year loan has a lower monthly payment, making it easier to fit into a monthly budget, but you pay significantly more interest because the debt stretches over twice as long.
The difference is substantial. On a $300,000 loan at 6 percent interest, a 15-year fixed loan costs roughly $2,110 per month, while a 30-year fixed loan costs roughly $1,400 per month. Over the life of the loan, the 15-year borrower pays about $80,000 in total interest, while the 30-year borrower pays about $200,000. Some borrowers choose a 30-year loan and make extra payments toward principal when they can, which gives them flexibility if money gets tight. Others choose 15 years from the start if they can afford the payment and want to own the home outright sooner.
How credit score, income, and down payment affect which loans you can get
Lenders use three main factors to decide which loan types to offer you: your credit score, your debt-to-income ratio (how much you owe each month compared to how much you earn), and your down payment amount. A higher credit score opens more options — conventional loans typically require a score of 620 or higher, while FHA loans work with scores as low as 580. A lower debt-to-income ratio (usually 43 percent or less) means you have more borrowing power. A larger down payment reduces the lender's risk and can lower your interest rate.
If your credit score is lower or your debt-to-income ratio is higher, you may only may have access to for FHA or adjustable-rate loans. If you are a veteran, a VA loan may be your best option regardless of credit score, because the VA may provide makes lenders more willing to work with you. If you are buying in a rural area, a USDA loan might offer better terms than a conventional loan. A mortgage broker or lender can run your numbers and tell you which types you may have access to for, and what the interest rate and monthly payment would be for each one.
Frequently Asked Questions
What is the difference between a mortgage and a home loan?
A mortgage is a specific type of home loan where the house itself serves as collateral — if you stop paying, the lender can take the house through foreclosure. Most home loans are mortgages. The terms are often used interchangeably.
Can I switch from an adjustable-rate loan to a fixed-rate loan?
You cannot change the loan itself, but you can refinance — take out a new fixed-rate loan to pay off the adjustable-rate loan. Refinancing costs money (usually 2 to 5 percent of the loan amount) and involves a new process and credit check, so it only makes sense if the interest rate savings outweigh the costs.
Do I have to put down 20 percent to avoid mortgage insurance?
No. FHA loans let you put down 3.5 percent with mortgage insurance. VA and USDA loans require no down payment at all. Conventional loans can work with down payments as low as 3 percent, though you will pay mortgage insurance. The 20 percent figure is a guideline, not a requirement.
What happens if interest rates drop after I lock in my rate?
If you have a fixed-rate loan, your rate does not change. If you want a lower rate, you can refinance, but you will pay closing costs on the new loan. With an adjustable-rate loan, a rate drop helps you only if it happens during the adjustable period and the index the loan is tied to actually falls.
Can I pay off my loan early without a penalty?
Most mortgages have no prepayment penalty, meaning you can pay extra toward principal or pay off the loan entirely without owing extra fees. Check your loan documents to confirm, but this is standard for FHA, VA, USDA, and most conventional loans.