How Low Down Payment Mortgages Work and What They Cost
What a low down payment mortgage is and how it changes your monthly costs
A low down payment mortgage is a loan where you put down less than 20 percent of the home's price upfront. Instead of saving $60,000 to buy a $300,000 house, you might put down $10,000 or $15,000 and borrow the rest. The trade-off is that lenders charge you extra each month through mortgage insurance — a fee that protects the lender if you stop paying, not you.
The monthly cost difference is real. On a $300,000 home with 10 percent down instead of 20 percent, you borrow an extra $30,000. That extra $30,000 costs you roughly $150 to $200 more per month in principal and interest alone, plus another $100 to $200 per month in mortgage insurance. That insurance stays on your loan until you have paid down the balance to 80 percent of the original home price — which can take 10 to 15 years depending on your loan term and how fast you pay.
Key Takeaways
- Low down payment mortgages let you buy with 3 to 10 percent down, but you pay mortgage insurance every month until you reach 20 percent equity in the home.
- Mortgage insurance is not optional on loans under 20 percent down — it is built into your monthly payment and costs roughly $100 to $300 per month on a typical home.
- FHA loans, conventional loans, and VA loans all offer low down payment options, but each has different insurance costs, credit score requirements, and rules about what repairs the home must pass.
- You can remove mortgage insurance once you have 20 percent equity, but you must request it — lenders do not remove it automatically.
- The lowest down payment does not always mean the lowest total cost; a 10 percent down payment with lower insurance costs may cost less over time than a 3 percent down payment with higher insurance.
How mortgage insurance works and why you pay it
When you borrow more than 80 percent of a home's value, the lender takes on risk. If you default and the home sells for less than you owe, the lender loses money. Mortgage insurance reimburses the lender for that loss — it does not protect you or reduce what you owe. You pay the premium, but the benefit goes to the bank.
The insurance cost depends on three things: how much you borrow relative to the home price, your credit score, and the type of loan. A borrower with a 750 credit score putting 10 percent down might pay $120 per month in insurance on a $300,000 home. The same borrower with a 620 credit score might pay $200 per month. On an FHA loan, the insurance is often higher but the credit score requirement is lower.
Mortgage insurance stays on your loan until you reach 20 percent equity — meaning you have paid down the balance to 80 percent of the original purchase price. If you bought for $300,000 with 10 percent down, you need to pay the loan down to $240,000. On a 30-year loan, that takes roughly 10 to 12 years of regular payments. You can also reach 20 percent equity faster by making extra payments or by waiting for the home to gain value, then refinancing.
Three loan types that offer low down payments
Conventional loans are mortgages from banks, credit unions, or mortgage companies that are not backed by the government. Most require a minimum 3 to 5 percent down payment. Credit score requirements are usually 620 or higher, though better rates go to borrowers with 740 or above. Mortgage insurance on conventional loans is called PMI (private mortgage insurance) and typically costs 0.5 to 1.5 percent of the loan amount per year, paid monthly.
FHA loans are backed by the Federal Housing Administration and are designed for borrowers with lower credit scores or smaller down payments. You can put down as little as 3.5 percent. Credit scores as low as 580 are accepted, though 640 or higher gets better rates. FHA insurance is mandatory and costs roughly 0.85 percent of the loan per year, plus an upfront fee of 1.75 percent of the loan amount added to your balance at closing. FHA insurance also stays on the loan for the full 30 years if you put down less than 10 percent, even after you reach 20 percent equity.
VA loans are for military members, veterans, and surviving spouses and require zero down payment. There is no mortgage insurance at all. Instead, the VA charges a one-time funding fee (roughly 2 to 3 percent of the loan) that can be rolled into the loan balance. VA loans have no credit score minimum, though most lenders require 620 or higher. The tradeoff is that the home must pass a VA appraisal, which is stricter than a standard appraisal and can delay closing or require repairs.
Comparing down payment amounts and their real costs
The lowest down payment is not always the cheapest option over time. A 3 percent down payment means you borrow more, so your monthly payment is higher and your mortgage insurance is higher. A 10 percent down payment means you borrow less, so both costs drop — and you reach 20 percent equity faster, so you stop paying insurance sooner.
| Down Payment | Loan Amount (on $300,000 home) | Estimated Monthly PMI | Years to 20% Equity (approx.) |
|---|---|---|---|
| 3% | $291,000 | $145–$220 | 12–15 |
| 5% | $285,000 | $130–$195 | 11–14 |
| 10% | $270,000 | $100–$160 | 9–12 |
| 20% | $240,000 | $0 | N/A |
The table shows monthly PMI ranges because the actual cost depends on your credit score, the lender, and the loan type. A 10 percent down payment with a 750 credit score might cost less in total interest and insurance than a 3 percent down payment with a 620 credit score, even though you are putting more money down upfront. Run the numbers with a mortgage calculator or talk to a lender about your specific situation.
What lenders look for beyond the down payment
Down payment size is only one part of the lending decision. Lenders also check your debt-to-income ratio — the percentage of your monthly income that goes to debt payments. Most lenders want this ratio to be 43 percent or lower. If you earn $5,000 per month and already have $1,500 in car loans, credit cards, and student loans, you can only afford a mortgage payment of about $700 before hitting that limit.
Your credit score affects both whether you are approved and what interest rate you pay. Conventional loans usually require 620 or higher; FHA loans accept 580 or higher. A score of 680 to 700 gets you better rates than a score of 620 to 640, even on the same loan type. The difference in interest rate can be 0.5 to 1 percent, which adds up to tens of thousands of dollars over 30 years.
Lenders also verify your employment and income through recent pay stubs, tax returns, and sometimes a letter from your employer. Self-employed borrowers need two years of tax returns. If you changed jobs recently, some lenders want a letter saying your new job is permanent. Gaps in employment or a recent job change can slow approval or require extra documentation.
How to remove mortgage insurance once you have equity
Mortgage insurance does not disappear on its own. You must request removal once you reach 20 percent equity. For conventional loans, you can ask your lender to remove PMI once the loan balance drops to 80 percent of the original purchase price. Some lenders remove it automatically at 22 percent equity, but do not count on it — call and ask.
To request removal, contact your loan servicer (the company that collects your monthly payment) and ask for a PMI removal form. You may need to provide proof of the home's current value through an appraisal or an automated valuation model (AVM). If the home has gained value since you bought it, you might reach 20 percent equity faster than your payment schedule suggests, which can save you years of insurance payments.
FHA loans are different. If you put down less than 10 percent, mortgage insurance stays for the full loan term — you cannot remove it. If you put down 10 percent or more, you can request removal once you reach 20 percent equity, but you must have made at least five years of on-time payments first. After that, FHA insurance drops off automatically at 78 percent loan-to-value.
Frequently Asked Questions
Can I use a gift from family to cover my down payment?
Yes, most lenders allow down payment gifts from family members. You will need a gift letter signed by the person giving the money, stating the amount and that it is a gift, not a loan you have to repay. The money must come from the giver's own account; it cannot be borrowed. Some lenders require the gift to cover a minimum percentage of the down payment, so ask your lender about their rules before accepting the gift.
What happens if I miss a mortgage payment with mortgage insurance?
Missing a payment hurts your credit score and can trigger late fees. If you are 30 days late, the lender reports it to credit bureaus. If you are 90 days late, foreclosure proceedings may begin. Mortgage insurance does not protect you from these consequences — it only protects the lender. If you are struggling to pay, contact your lender immediately to discuss forbearance or loan modification options.
Is it better to wait and save for 20 percent down, or buy now with less?
This depends on your situation and local housing costs. If home prices are rising faster than you can save, buying now with a low down payment and paying mortgage insurance for 10 years might cost less than waiting two more years and paying higher prices. If prices are stable or falling, waiting to save more makes sense. A mortgage calculator can show you the total cost of each scenario.
Can I refinance to remove mortgage insurance faster?
Yes. If your home has gained value or your credit score has improved, refinancing into a new loan can lower your interest rate and remove mortgage insurance immediately. Refinancing costs money upfront (closing costs are typically 2 to 5 percent of the loan), so calculate whether the savings in interest and insurance over the remaining loan term outweigh those costs. A lender can run the numbers for you.
Do all low down payment loans require an appraisal?
Yes, all mortgages require an appraisal to confirm the home is worth what you are paying. VA loans have a stricter appraisal that checks for safety and livability issues; conventional and FHA appraisals focus on value. If the appraisal comes in low — meaning the home is worth less than the purchase price — you may need to renegotiate the price, put down more money, or walk away from the deal.