The Stack Guide
Understanding the Stack: how down payment help actually works.
Most buyers leave thousands on the table because nobody walks them through this. Here's the honest version — why the programs exist, who qualifies, and what to expect.
Run my StackThe why
Why the government actually wants you to own a home.
Down-payment assistance can feel suspicious the first time you hear about it. Free money? From the government? There's a catch, right? Mostly, no. The programs exist because broad homeownership is in the direct interest of federal, state, and local governments — and they say so out loud in the enabling legislation.
A predictable tax base. Owner-occupied homes generate stable, long-horizon property tax revenue. That revenue funds schools, roads, fire departments, and libraries. Renters move on a 12-month cycle; owners stick around for a decade or more. Cities and counties subsidize ownership because it stabilizes the revenue side of their budget.
Engaged, stake-holding residents make better neighborhoods. When you own where you live, you vote in local elections at higher rates, maintain the property, plant the tree, show up at the school board meeting. Every academic study of neighborhood health — crime, school performance, civic participation — finds that the owner-occupancy rate is one of the strongest predictors. Governments know this, and they've known it for a hundred years.
Equity, done right, builds financial stability. Homeownership is still the single largest source of household wealth in the United States. Stable households reduce demand on safety-net programs, generate intergenerational wealth, and produce healthier outcomes for kids. Helping a family get into a home isn't charity — it's one of the highest-ROI things a government can spend money on.
That's why federal, state, county, and even employer programs all exist — and why nobody bothers to tell you about them in one place. That's what the Stack does.
The four layers
The four layers, explained.
Each layer plays a different role. Most of the magic happens when they combine.
1. Federal
FHA, VA, USDA, and Good Neighbor programs aren't grants in the cash sense — they're guarantees that let lenders offer you lower down payments (as little as 0% for VA and USDA) and easier qualification. Federal programs almost never give you cash directly; they unlock cheaper financing so the cash you do have goes further. Almost every state and county program is designed to stack on top of one of these federal loans.
2. State
Every state runs a housing finance agency. These agencies issue bond-backed mortgages at below-market rates, plus grants and forgivable second mortgages for down payment and closing costs. State programs typically have income limits tied to area median income (AMI) and a first-time buyer definition that's broader than you'd think — usually "haven't owned in the last three years." This is where the largest single chunks of help live.
3. County & Local
Counties and cities run targeted DPA funds — often funded by HOME, CDBG, or local housing bonds. These are the most under-claimed layer because the programs are small, hyperlocal, and almost never advertised. A $7,500 county grant in your specific ZIP, stacked on a $15,000 state grant and an FHA loan, is the difference between renting next year and closing next year.
4. Employer
A growing number of employers — hospitals, universities, large corporations, and an expanding list of public-sector employers — offer down payment matching, forgivable loans for relocating closer to work, or closing-cost stipends as part of benefits. Most employees never know it exists because HR mentions it once in the onboarding deck and never again. Stack flags the layer to check; you confirm with HR.
What the Stack does
One ZIP. One total. Every layer.
Enter your ZIP. Stack runs a waterfall through all four layers, removes duplicates, surfaces eligibility rules in plain English, and returns a single estimated total of assistance you may qualify for — plus the next concrete step for each program.
It's free. It takes about 60 seconds. And it's the only tool we know of that includes the employer layer.
Build my StackHonest answers to the questions everyone asks.
Is this really free money?+
Most down-payment assistance comes as a grant (never repaid), a forgivable loan (forgiven if you stay in the home for a set number of years), or a deferred-payment second mortgage (no payments until you sell or refinance). Stack labels each program by type so you know exactly what you're agreeing to.
Do I have to pay it back?+
Depends on the program. True grants don't get paid back. Forgivable loans are forgiven over time. Deferred loans get paid back when you sell. Stack shows the repayment terms next to every program so there are no surprises.
Does using assistance affect my mortgage rate?+
Generally no. Most state and county DPA programs are designed to pair with standard FHA, VA, USDA, or conventional loans at market rates. A few have rate adjustments — Stack notes when that applies.
Do I need perfect credit?+
No. Many DPA programs accept credit scores starting at 620, and some FHA-paired programs go lower. Income limits matter more than credit perfection for the majority of grants.
Why haven't I heard of these programs?+
Because nobody is paid to tell you. Lenders surface the one program they know. Realtors aren't required to mention any. Counties bury them in 40-page PDFs. Stack exists because the help is real — it's just buried.
Can I stack multiple programs at once?+
Often yes. A federal FHA loan can pair with a state DPA grant, which can pair with a county closing-cost grant, which can pair with an employer benefit. Stack runs the waterfall and shows what combines.
How current is the data?+
Our catalog is admin-verified and refreshed weekly. When a program isn't in the catalog yet, we fall back to an AI-sourced result and tag it clearly so you know to confirm directly with the agency.
Ready to see your number?
Free, ZIP-based, no commitment. We'll show you every dollar — and exactly how to claim it.