The Quick Read: Not directly. The high-cost cap limits the size of your first mortgage. It does not rewrite the formula for your assistance, which is a percentage of the purchase price or value. The cap can still matter indirectly, because it decides how much of a home’s price your first loan can cover. That gap, not the assistance formula, is what changes your cash to close.
Three Things People Blur Together
Buyers hear “cap,” “limit,” and “high-cost” in one breath and assume they are one rule. They are three.
The first is the first-mortgage cap. For FHA, that is the county loan limit. HUD’s FHA lender page lists the one-unit range at $541,287 to $1,249,125, depending on the county. A county near the bottom of that range is a “floor” county. A county near the top is a “high-cost” county.
The second is the assistance formula. Across the wholesale programs Lendmire places files with, every option is a percentage of price or value. Nothing in that formula looks at your county’s loan limit.
The third is the underwriting test. Lenders check loan-to-value, the minimum investment, and your debt ratios. These decide whether the whole combination closes.
Keep those three apart and most of the confusion goes away.
How the Assistance Is Actually Calculated
There are four shapes of assistance. Each one has its own base, and none uses the county cap.
| Option | Percentage | Based on |
|---|---|---|
| Grant | 2% or 3.5% | Purchase price |
| Forgivable second | 3.5% | Lesser of price or value |
| Repayable second | 3.5% or 5% | Lesser of price or value |
| Refinance-cost second | 1% to 3.5% | Lesser of balance or value |
The grant is nothing to repay. It is released at closing, with no lien, no payment, and no interest. The forgivable second carries no interest and no payment, and it is forgiven after 36 or 60 on-time first-mortgage payments. The repayable second is a real loan. It has interest, a monthly payment, a 30-year amortization, and a balloon due in year 10. Treat it like any other debt you take on.
All of this is subject to program guidelines and full underwriting, through wholesale lenders. Lendmire is the broker, not the lender. You can see the full menu on Lendmire’s down payment assistance programs page.
Notice what is missing from that table: a county, a high-cost designation, a dollar ceiling tied to your market. The base is price or value, so a pricier home produces a larger assistance amount in the same way a pricier home produces a larger down payment.
Where the Cap Does Bite
Here is the catch. The cap limits the first loan, and the price can keep climbing past it.
Picture a buyer in a county that sits at the FHA floor. The home costs well above what the capped first loan can cover. The assistance still equals its percentage of the price. But the first mortgage cannot grow to fill the rest. The difference comes out of the buyer’s own cash, a permitted gift, or another allowed source.
So the cap changes your cash to close, not your assistance percentage. Those are different numbers.
Now flip it. In a high-cost county with a higher limit, the same home may fit comfortably under the cap. The first loan covers the usual share of the price, and the assistance works the same way it did in the floor county.
Same formula. Different outcome. The only thing that moved was how much first mortgage the county allows.
Two quick notes on first liens. The grant pairs with standard FHA first liens and does not pair with a high-balance first lien. The repayable second does allow high-balance first liens. The forgivable second does not. If your price pushes you into high-balance territory, that detail decides which shape is even on the table.
What the Appraisal Does to the Math
The appraisal matters more than the cap in many files.
FHA measures your down payment against the lesser of the price or the appraised value. HUD’s FHA guidance puts the minimum required investment at 3.5 percent of that adjusted value. The forgivable and repayable seconds also use the lesser of price or value.
That has a plain consequence. If the appraisal comes in below the price, the base shrinks. The assistance on those two options shrinks with it, and you cover more of the gap yourself. Nothing about the county cap changed. The value did.
The grant is the exception worth noting. It is calculated off the purchase price and aimed at the minimum required investment. Even so, the first loan still sits on value, so a low appraisal can still raise your cash to close.
This is why a buyer should never estimate assistance from the contract price alone. Get the appraised value in hand before you plan your cash.
Does a Bigger Market Mean a Higher Income Limit?
This one trips people up, because “high-cost” shows up in income rules too.
The grant is often a strong option with an income test. Household income must be at or below 140% of the area median income, unless you fall into a qualifying category. Area median income is set locally, so an expensive county usually has a higher median, and that moves the line up. That is an eligibility input. It is not a change to the assistance formula.
The categories skip the income test entirely: first responders, educators, medical workers, civil servants, military personnel, first-time buyers, and buyers in underserved census tracts. The grant is not offered in Washington.
The forgivable and repayable seconds carry no income limit. The one exception is a USDA first lien, where USDA’s own income limits apply.
Nobody has to be a first-time buyer. Repeat and move-up buyers qualify. The three-years-without-ownership definition is just one of the grant’s qualifying categories.
What About USDA and HUD-184?
These two behave differently from FHA, and the difference is useful.
USDA has no county loan cap like FHA’s. The guaranteed program offers 100 percent financing, has no set maximum purchase price, and bases the loan on appraised value and repayment ability. So the “high-cost cap” idea does not apply to the first loan. The limits that bind are income eligibility, area eligibility, and the appraisal.
HUD-184 is a guaranteed loan for eligible Native American borrowers. The program itself does not provide down payment assistance, so help comes from the options placed alongside it. Its loan limits now follow the current FHA nationwide limits, with some counties keeping an older, higher number. Older material that says 184 limits are always 150 percent of FHA is out of date. Check HUD’s current county table.
How a second lien counts against a USDA first loan on a purchase is a point the lender confirms file by file. Do not assume.
The Second Lien and Your Monthly Budget
A cap does not touch your monthly payment directly. The shape of the assistance does.
A forgivable second adds no monthly payment and no interest. A repayable second adds a payment that counts in your debt ratios, and lenders include it when they test whether you can afford the loan. That is true whether the first lien is in a floor county or a high-cost one.
Two more practical points. A larger first loan means more FHA mortgage insurance, because the upfront premium is 1.75% of the base loan and can be financed. And a forgivable second only stays forgiven if you make the on-time payments, so it is a commitment, not a gift.
For the repayable option at 5%, the extra 1.5% beyond the 3.5% minimum investment goes toward closing costs and prepaid items. At 3.5%, it covers the down payment only. That choice, not your county, sets how much closing-cost help you get.
Common Mistakes
- Assuming a high-cost county means bigger assistance. The assistance follows price or value. A larger amount in an expensive county comes from the bigger price, not from the designation.
- Estimating from the contract price. On the seconds, a lower appraisal lowers the base.
- Treating the cap as a purchase-price limit. FHA’s cap limits the first loan. Prices can exceed it. You fill the gap.
- Mixing up loan tiers. A high-balance first lien changes which assistance shapes are available. It does not change the formulas.
- Stacking programs. No option combines with another assistance program, and a mortgage credit certificate is not permitted with the second-lien options.
- Calling a second lien a grant. Only the grant is nothing to repay.
Also remember that assistance is for an owner-occupied primary residence only. Not a second home. Not a rental.
How to Check Your Own Market
Run this list before you fall in love with a house.
1. Look up your county’s FHA limit for the unit count you plan to buy. HUD publishes it through its county lookup tool. 2. Compare the likely first loan to that limit. If the price runs well past it, plan for the gap in cash. 3. Ask which base the assistance uses: price, or the lesser of price or value. 4. Confirm your credit against the floor for each option: 620 for the grant, 640 for the forgivable second, 660 for the repayable second. 5. Ask whether your income needs to pass the 140% test, or whether a category applies. 6. Ask if the second is a loan with a payment, and how it counts in your ratios. 7. If the grant fits, plan for the homebuyer education course. A HUD-approved course is required.
HUD also lists housing counselors if you want a neutral second opinion before you commit.
Limits reset each calendar year, and the case number date decides which year’s limit applies. Programs change, and every file is underwritten individually.
If you are buying a primary home and want to see whether a down payment assistance option fits your file, Lendmire can help you compare the grant, forgivable and repayable structures alongside an FHA, USDA or HUD-184 first mortgage. Call 828-256-2183.
Key Terms Defined
Area median income: The middle household income for your local area, used to set eligibility lines.
Base loan amount: The first mortgage before any financed upfront mortgage insurance is added.
Combined loan-to-value: The first mortgage plus any second liens, divided by the home’s adjusted value.
Minimum required investment: The share of the home’s value you must put in yourself, which is 3.5% on FHA.
Balloon: A lump sum due at the end of a short term, in year 10 on the repayable second.
Adjusted value: The lesser of the purchase price or the appraised value, used for FHA tests.
Frequently Asked Questions
Does a high-cost county give me more down payment assistance?
No. The assistance is a percentage of price or value, so a pricier home can produce a larger amount. That comes from the price, not the county label. The high-cost designation affects your first-loan ceiling and, for the grant, the local income line.
What happens if my price is higher than the FHA county limit?
The first loan stops at the limit, and you cover the difference. That gap comes from your own cash, a permitted gift, or another allowed source. The assistance percentage stays the same, but it will not close a gap the cap creates.
Can I use assistance to buy a rental or second home?
No. Every option is for an owner-occupied primary residence only.
Do I have to be a first-time buyer?
No. No option requires you to be a first-time buyer, so repeat and move-up buyers can qualify. The grant, which is 2% or 3.5% of the purchase price with nothing to repay, applies an income test of 140% of area median unless a buyer falls into one of the exempt categories.
Does a low appraisal change my assistance?
On the forgivable and repayable seconds, yes. They use the lesser of price or value, so a low appraisal lowers the base. Plan your cash after the appraisal arrives.
Investors who want the broader program framework can review how DSCR loans work.
About Lendmire
Lendmire is a mortgage brokerage (NMLS# 2371349) licensed for consumer mortgage lending in 16 states, arranging government-backed purchase loans and the down payment assistance options that sit on top of them through a wholesale lending network. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. HUD FHA lender page: one-unit loan limits
2. HUD FHA minimum down payment requirement
This article is part of Lendmire’s First Time Home Buyer series — every loan program’s qualification details, guidelines, and scenarios live on the loan options page.
Related reading: Repayable Second Mortgage Terms Across Down Payment Assistance Types · Does a Grant or Second Mortgage DPA Raise Your Monthly Payment? · Does Down Payment Assistance Have to Be Paid Back?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.