Down payment assistance programs can save you money upfront, but they often cost more over the life of your loan

A down payment assistance program gives you money or a loan to cover part or all of your down payment, letting you buy a home with less cash on hand. The catch: most programs add costs that offset the upfront savings. Some charge higher interest rates, some require you to repay the assistance as a second loan, and some impose restrictions on when you can sell or refinance. Whether the program is worth it depends on your specific situation—how much cash you have, how long you plan to stay in the home, and what the actual terms are.

The programs fall into three categories: grants (money you do not repay), forgivable loans (you repay only if you sell within a set period), and second mortgages (you repay regardless). Each structure changes the math differently.

Key Takeaways

  • Down payment assistance programs reduce what you pay upfront but often increase your total loan cost through higher interest rates, second mortgages, or both.
  • Grants and forgivable loans cost less over time than second mortgages, but grants are rare and forgivable loans usually require you to stay in the home for five to ten years.
  • The programs make the most sense if you have no other way to save a down payment and plan to stay in the home long enough for the forgiveness period to end.
  • Your primary mortgage rate may be higher with assistance than without, which compounds the cost over 15 or 30 years.
  • Some programs tie you to specific lenders or require you to take homebuyer education courses, which adds time and sometimes money to the process.

How down payment assistance actually costs you money

The most common structure is a second mortgage: the assistance program lends you money for the down payment, and you repay it as a separate loan on top of your primary mortgage. This means two monthly payments instead of one. A second mortgage typically charges 4 to 8 percent interest and runs for five to ten years. On a $30,000 second mortgage at 6 percent over ten years, you pay roughly $180 per month plus about $8,000 in interest.

Some programs raise your primary mortgage rate instead. Lenders view borrowers using down payment assistance as higher risk, so they charge 0.25 to 0.75 percentage points more in interest. On a $300,000 mortgage at 30 years, a 0.5 percentage point increase costs you roughly $60,000 more over the life of the loan. That is far more expensive than a second mortgage.

A few programs offer forgivable loans: you repay the assistance only if you sell the home within a set window (usually five to ten years). If you stay past that date, the loan is forgiven. This is cheaper than a second mortgage, but the forgiveness period locks you into the home. If you need to move for a job or family reasons before forgiveness kicks in, you owe the full amount immediately.

Grants—money you never repay—are rare and usually reserved for very low-income buyers or specific professions like teachers or nurses. If you find one, it is worth taking.

When the program makes financial sense

Down payment assistance is worth considering if you meet all three of these conditions: you have no realistic way to save a down payment in the near term, you plan to stay in the home for at least as long as the forgiveness or second mortgage period, and the interest rate on your primary mortgage would not increase significantly.

Example: You earn $45,000 a year and have $8,000 saved. A 3 percent down payment on a $250,000 home requires $7,500, leaving you almost no emergency fund. A forgivable loan program that forgives the $7,500 after seven years lets you buy now and build equity while you save. If you stay seven years, the forgiveness saves you the repayment. If you leave after five years, you owe $7,500 at closing, which is painful but not catastrophic if you have built equity.

The math breaks down if you are borderline on affording the home to begin with. If your debt-to-income ratio is already tight, adding a second mortgage payment can push you past what lenders will approve, or leave you house-poor. In that case, waiting to save a larger down payment is safer than stretching to buy now.

The hidden costs and restrictions

Beyond interest and repayment terms, assistance programs often come with requirements that cost time or money. Many require you to complete a homebuyer education course, which can run $100 to $500 and take eight to twelve hours. Some tie you to specific lenders, who may charge higher fees than competitors. A few programs restrict your ability to refinance or require you to maintain homeowners insurance at a higher level than standard.

Forgivable loan programs sometimes include a clawback clause: if you sell the home or refinance before the forgiveness period ends, you owe the full loan amount immediately. This can wipe out your equity if you refinance to a lower rate. Read the fine print before signing.

Some programs are run by nonprofits or local housing authorities and have limited funding. They may close to new applicants partway through the year or have long waiting lists. If you find a program you like, confirm it is currently open and ask how long approval typically takes.

Comparing assistance to other down payment options

Before committing to a program, compare it to alternatives. If you have family who can gift you money, a gift is free and carries no repayment obligation (though the lender will require a signed gift letter). If you have a 401(k), some plans allow loans against your balance at low interest rates. If you have home equity from a previous sale, a home equity line of credit may charge less than a second mortgage through an assistance program.

If you can delay buying by one to two years and save aggressively, that may cost less than the interest and fees of an assistance program. A 10 percent down payment avoids private mortgage insurance (PMI), which costs 0.5 to 1.5 percent of your loan amount annually until you reach 20 percent equity. Saving for 10 percent down can be cheaper than using assistance and paying PMI for years.

The trade-off is time. If you are renting and rent is rising, or if you have a child on the way and need more space now, waiting may not be realistic. In that case, an assistance program with a forgivable loan structure is usually cheaper than one with a second mortgage.

Questions to ask before you commit

When you find a program, get the answers to these questions in writing: Will your primary mortgage interest rate increase, and by how much? Is the assistance a grant, forgivable loan, or second mortgage? If it is forgivable, what triggers repayment—only a sale, or also a refinance? What is the interest rate on any second mortgage, and how long is the repayment term? Are there restrictions on when you can sell or refinance? What courses or documentation are required, and what do they cost? How long does approval typically take?

Run the numbers yourself. Use a mortgage calculator to see what your total payment would be with and without the program. Add in the cost of any required courses or higher interest rates. Compare the total cost over the time you plan to stay in the home. If the program saves you money under those conditions, it is worth pursuing. If it costs more, or if the savings are small, you may be better off waiting or exploring other options.

Frequently Asked Questions

Do I have to use down payment assistance if I am offered it?

No. You can decline a program and save for a down payment on your own, use a gift from family, or explore other financing options. Accepting assistance is a choice, not a requirement. Make sure the terms actually save you money before you commit.

What happens if I sell the home before the forgivable loan period ends?

You owe the full loan amount at closing. If you have built equity, the sale proceeds usually cover it. If you have not built much equity or the home value has dropped, you may owe money out of pocket. Always ask the program what happens in a sale before you sign.

Can I use down payment assistance if I have bad credit?

Some programs are designed for borrowers with lower credit scores or limited credit history. Others require a minimum score, usually 580 to 620. Ask the program directly what credit requirements apply. Even if you may have access to, your interest rate may be higher than for borrowers with stronger credit.

Is down payment assistance the same as a first-time homebuyer program?

No. First-time homebuyer programs may include down payment assistance, but they can also offer other benefits like lower interest rates, reduced closing costs, or tax credits. Some assistance programs are open to repeat buyers too. Check what your specific program includes.

What if I cannot afford the monthly payment with the second mortgage included?

Tell your lender before you apply. They will calculate your debt-to-income ratio with the second mortgage payment included. If it is too high, you may not be approved, or you may need to look at less expensive homes. It is better to know this upfront than to discover it after you have already made an offer.