How Zero Down Payment Mortgages Work and What They Actually Cost
What a zero down payment mortgage means
A zero down payment mortgage lets you borrow the full purchase price of a home without putting money down upfront. Instead of saving 3%, 5%, 10%, or 20% before you buy, you finance 100% of the cost through the lender. The trade-off is that you pay more in interest over the life of the loan, and the lender protects itself by charging you for mortgage insurance.
Zero down mortgages exist because lenders have ways to reduce their risk when you put nothing down. The most common protection is mortgage insurance — a monthly fee added to your payment that covers the lender if you stop paying. This insurance does not protect you; it protects the bank. You pay for it, but the benefit goes to them.
The other protection is that lenders are more selective about who they lend to when there is no down payment. Your credit score, income, and debt-to-income ratio matter more. A lender might require a 640 credit score for a zero down loan but accept 580 for a 10% down loan, because the down payment is their cushion.
Key Takeaways
- Zero down mortgages let you borrow 100% of the home price, but you pay mortgage insurance on top of your regular payment — usually 0.5% to 1.5% of the loan amount per year.
- Your interest rate on a zero down loan is typically higher than on a loan with a down payment, sometimes by 0.25% to 0.75%, which adds tens of thousands of dollars over 30 years.
- Federal Housing Administration (FHA) loans require only 3.5% down and have lower mortgage insurance costs than conventional zero down loans, making them cheaper for most buyers.
- You can remove mortgage insurance from a conventional loan once you reach 20% equity, but FHA mortgage insurance stays for the life of the loan if you put down less than 10%.
- Zero down makes sense only if you cannot save a down payment and have stable income and good credit; otherwise, waiting to save 3% to 5% usually costs you less money overall.
How mortgage insurance works and what it costs you
When you put down less than 20%, the lender requires you to buy private mortgage insurance (PMI) on a conventional loan. This is a monthly premium added to your mortgage payment. The cost depends on how much you are borrowing, your credit score, and the size of your down payment — or lack of one.
On a $300,000 home with zero down, PMI typically runs between $150 and $300 per month, though it varies by lender and your credit profile. Over 30 years, that is $54,000 to $108,000 in insurance premiums alone — money that builds no equity and disappears when the loan ends. You can remove PMI once you reach 20% equity in the home, but that takes years of payments.
FHA loans have a different insurance structure. They charge an upfront mortgage insurance premium (UFMIP) of 1.75% of the loan amount, rolled into your mortgage, plus an annual mortgage insurance premium (MIP) of 0.55% to 0.8% per year. On a $300,000 FHA loan, the upfront cost is $5,250, and the annual cost is $1,650 to $2,400. FHA insurance is permanent if you put down less than 10%, so you pay it for the entire 30 years.
Interest rates and the total cost of borrowing with zero down
Lenders charge higher interest rates for zero down loans because the risk is higher. A borrower with no skin in the game is statistically more likely to walk away if the market drops or life gets hard. That risk gets priced into your rate.
The difference is usually 0.25% to 0.75% higher than a loan with 10% or 20% down, depending on your credit score and the lender. On a $300,000 loan, a 0.5% rate difference costs you roughly $150 per month more, or $54,000 over 30 years. Add that to the mortgage insurance, and zero down can cost $100,000 to $150,000 more than putting 5% or 10% down.
This is why waiting to save even a small down payment often saves money in the long run. If you can save $15,000 (5% of $300,000) over two years, you avoid the higher rate and reduce the mortgage insurance cost. The monthly payment might be lower than zero down, even though you are borrowing less.
FHA loans versus conventional zero down loans
If you have no down payment, an FHA loan is usually cheaper than a conventional zero down loan, even though FHA requires 3.5% down. The reason is that FHA mortgage insurance is less expensive than PMI, and FHA is more flexible about credit scores and debt levels.
An FHA loan with 3.5% down ($10,500 on a $300,000 home) typically costs less per month than a conventional loan with zero down on the same house. You borrow less, the insurance is cheaper, and the rate is often competitive. The catch is that FHA insurance is permanent if you put down less than 10%, so you never shed that cost.
A conventional zero down loan lets you remove PMI once you hit 20% equity, which usually takes 8 to 12 years of payments. After that, your payment drops. With FHA, the insurance never goes away, so your payment stays the same for 30 years. Over the full loan term, conventional can end up cheaper, but the monthly payment is higher at the start.
| Loan Type | Down Payment | Mortgage Insurance | Can Remove Insurance? | Typical Monthly Cost (on $300,000) |
|---|---|---|---|---|
| Conventional, 0% down | $0 | PMI: 0.5%–1.5% per year | Yes, at 20% equity | $2,100–$2,400 |
| FHA, 3.5% down | $10,500 | UFMIP + MIP: 2.3%–2.55% total first year | No, if down < 10% | $1,900–$2,100 |
| Conventional, 5% down | $15,000 | PMI: 0.3%–0.8% per year | Yes, at 20% equity | $1,800–$2,000 |
Who can actually get a zero down mortgage
Not every lender offers zero down conventional loans, and those that do have strict requirements. You typically need a credit score of 640 or higher, a debt-to-income ratio below 43%, and proof of stable income for at least two years. Self-employed borrowers face extra scrutiny and may need two years of tax returns.
Lenders also verify that you have enough cash reserves after closing — usually three to six months of mortgage payments sitting in the bank. This is to prove you can handle the payment if you lose income. If you have zero down and zero savings, most lenders will not touch the loan.
FHA loans are more flexible on credit (620 minimum at many lenders) and debt ratios, but you still need to show income stability and reserves. The 3.5% down payment can come from a gift, a grant, or your own savings, but you have to have it.
When zero down makes sense and when it does not
Zero down makes sense if you are in a hot market where prices are rising faster than you can save, you have stable income and good credit, and you plan to stay in the home for at least seven years. In that scenario, building equity now beats waiting two more years to save a down payment, even if the total cost is higher.
Zero down does not make sense if you are barely scraping together the monthly payment, have unstable income, or are planning to move within five years. The higher cost of borrowing eats up any benefit from buying sooner. You are also at risk of being underwater — owing more than the home is worth — if the market dips, which locks you into the house.
If you have any savings at all, putting down 3% to 5% is almost always cheaper than zero down. The rate is lower, the insurance is cheaper, and you build equity faster. The only reason to choose zero down is if you literally cannot save anything and the market will not wait.
Down payment assistance programs as an alternative
Before you commit to zero down, check whether your state or local government offers down payment assistance. These programs give grants or forgivable loans to first-time buyers, typically covering 3% to 10% of the purchase price. Some are income-based; others target specific professions like teachers or healthcare workers.
Down payment assistance is not the same as a loan you repay. A grant is assistance programs. A forgivable loan means you owe it back only if you sell the home within a set period (usually 5 to 10 years); if you stay, it is forgiven. Either way, you end up with a down payment without having to save it yourself, and you avoid the higher cost of zero down.
Your state housing finance agency, local housing authority, or a nonprofit like NeighborWorks can point you toward programs in your area. Some are always open; others run out of money and reopen later in the year. It is worth checking before you settle on zero down.
Frequently Asked Questions
Can I get a zero down mortgage with bad credit?
Most conventional lenders require a credit score of at least 640 for zero down. If your score is lower, an FHA loan with 3.5% down is your better option — FHA accepts scores as low as 580 at many lenders. Even then, you will pay a higher interest rate and mortgage insurance.
What happens if the home value drops after I buy with zero down?
You become underwater, meaning you owe more than the home is worth. You cannot sell without bringing cash to closing, and refinancing becomes difficult or impossible. This is why zero down is riskier in unstable markets. If you plan to stay long-term, it matters less; if you might move, it is a real problem.
Can I remove mortgage insurance from a zero down conventional loan?
Yes, once you reach 20% equity in the home. On a $300,000 loan, that means paying down to $240,000, which takes 8 to 12 years depending on your rate and payment. You can request removal yourself or ask the lender to remove it automatically when you hit the threshold.
Is an FHA loan cheaper than zero down if I can save 3.5%?
Almost always yes. FHA with 3.5% down costs less per month than conventional with zero down on the same home, because you borrow less and the insurance is cheaper. The downside is that FHA insurance never goes away, so your payment never drops.
What if I put zero down but plan to refinance in a few years?
Refinancing is possible once you have equity, but it depends on the market and your credit at that time. If rates are higher when you refinance, you might not save money. If the market drops, you may not have enough equity to refinance at all. Do not count on refinancing as your exit strategy from zero down.