What it means
The Federal Housing Finance Agency, or FHFA, sets the maximum size for mortgages that Fannie Mae and Freddie Mac can purchase, which establishes one boundary of the conforming mortgage market. The limit concerns the loan amount, not the home's purchase price, so a larger down payment can bring the original mortgage principal below the cap.
FHFA publishes an annual baseline for a one-unit property in most U.S. areas, and certain high-cost locations can have a higher ceiling under the statutory formula. Separate statutory treatment applies in Alaska, Hawaii, Guam and the US Virgin Islands, so the correct amount depends on the property's location and the number of units.
A duplex or four-unit property's limit differs from the one-unit figure, and substituting the wrong unit count can distort a financing decision. FHFA data list previous years as well as the current year, so an earlier year's chart should not decide the cap for a new mortgage, and the timing of origination or purchase matters under some historical rules, so a lender should identify the relevant year and program before quoting an eligibility threshold.
The FHFA page says loans above the applicable limit are jumbo mortgages, and a lender may still offer such a loan, but it cannot be acquired through this standard enterprise channel. A mortgage can fall below the dollar limit and still be nonconforming, because credit, income, occupancy, loan-to-value ratio, documentation and eligible property type are separate tests.
A conventional mortgage is one without federal mortgage insurance or guarantee under certain government programs, so conventional does not mean conforming in every case. Fannie Mae and Freddie Mac buy qualifying mortgages rather than issuing loans directly to consumers, and lenders set individual loan offers subject to their own and investor requirements.
This secondary market can help lenders recover capital for more lending, but it does not guarantee a particular buyer the lowest available interest rate. Jumbo pricing may differ because the lender or another investor bears and manages different risks, and a jumbo offer can sometimes be competitively priced for a strong borrower.
Loan limits are distinct from underwriting caps on debt-to-income ratios or loan-to-value ratios, which a lender checks separately. For a home near the threshold, a buyer may compare a larger down payment with a different loan product, since the choice affects liquidity, closing costs and possible investment alternatives.
Splitting financing into a first and second mortgage may change the first loan's size, but it adds another lien, payment and cost, so it is not automatically a cheaper workaround. Borrowers should compare loan estimates, not only whether a mortgage is conforming, because points, mortgage insurance, total closing costs and rate structure affect lifetime expense.
A change in house prices can change the annual baseline under the legal formula, so the new published amount must be verified rather than forecast from a headline. For a planned purchase, check FHFA's county and unit table and ask the actual lender which program requirements apply, because the loan amount is only the first screen.
In practice
Real-world examples.
Example
A borrower asks a lender for the current-year FHFA one-unit limit in the county where the home sits. The lender confirms the figure from FHFA's published county table and the date the loan will be originated. The borrower then compares the planned loan principal with that figure.
Example
An investor compares a duplex request against the two-unit limit rather than using the baseline one-unit number. The two-unit limit is higher, so a loan that looked too large may fit within it. The investor still confirms that the property type and occupancy meet the program rules.
Example
A household reduces requested mortgage principal with a larger down payment but still must meet credit and property rules. The larger deposit lowers the loan below the cap and also reduces the monthly payment. It does not replace the lender's checks on income, debts and the property appraisal.
Formula
Calculation
Illustrative loan principal = purchase price minus down payment, before financed fees. For a $900,000 home with $180,000 down, requested principal is $720,000. Compare that figure with the FHFA limit for the right year, area and unit count; this example does not state the applicable limit.Case study
Seen in the real world.
Fictional case: Luis plans to buy a one-unit home for $950,000 with $175,000 down. His planned loan is $775,000 before any financed fees. He checks FHFA's published county limit for the intended loan period and asks his lender which Fannie Mae or Freddie Mac product is relevant.
Even if the principal is under that location's cap, the lender reviews income, existing debt, appraisal, property use and credit. Luis compares a conforming loan estimate with an alternative offer using actual points, insurance and cash due. He does not assume the cap alone determines his approval or best rate.
Watch out
Common mistakes.
- Using the property's purchase price instead of original loan principal for the size test.
- Applying one year's one-unit baseline to every county and multiunit property.
- Treating an under-limit mortgage as automatically approved or necessarily the cheapest loan.
Questions
People also ask.
Who sets the limit?
The FHFA publishes limits under federal law for loans the enterprises may acquire.
Does every county have the same amount?
No. Some high-cost and specially designated areas differ from the baseline.
What if a mortgage exceeds its limit?
It is generally classified as jumbo for this purpose, though other lenders may still finance it.
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