FHA Loans in Illinois: One Limit in All 102 Counties, and the Two-Flat That Fits It

DePaul's Institute for Housing Studies counts the units in two- to four-unit buildings at 26 percent of Chicago's housing stock. That is a great many two-flats, three-flats and four-flats, and FHA insures this kind of building when one of the clients on the loan lives in it.

FHA's 2026 loan limit in Illinois is $541,287 for a one-unit home in every one of the state's 102 counties, and it rises to $693,050 for two units, $837,700 for three units and $1,041,125 for four units.

I'm Jeff Moran, NMLS #483943, licensed to originate mortgages in Illinois through C2 Financial Corporation.

What is the FHA loan limit in Illinois?

HUD's Mortgagee Letter 2025-23 sets the 2026 FHA limits for loans whose case numbers are assigned on or after January 1, 2026. HUD's county file puts all 102 Illinois counties at the national floor, which is the lowest limit the program sets anywhere. Cook County gets the same figures as Hardin County.

Units	FHA limit, every Illinois county
One	$541,287
Two	$693,050
Three	$837,700
Four	$1,041,125

The county does not change how large an FHA loan can be in Illinois. The price of the property and your file do that. A loan above the limit is a different product, and which loan fits lays the options side by side.

Buying a two-flat, a three-flat or a four-flat with FHA

Chicago has the best-known stock of these buildings, and the Chicago-area page walks through the neighborhoods. FHA's handbook, HUD 4000.1, sets the same rules for them anywhere in Illinois.

• One client on the loan has to live there. You move in within 60 days of signing the mortgage and plan to stay for at least a year.
• The down payment is the same as for a one-unit home. FHA asks for at least 3.5 percent of the value, and a purchase can be financed up to 96.5 percent of it.
• Three and four units get one more test. The appraiser estimates the market rent for every unit, including yours. The handbook then subtracts the larger of the appraiser's vacancy and maintenance estimate or 25 percent of that rent. What is left has to cover the full monthly payment of principal, interest, taxes and insurance.

A two-unit building does not have that extra test in the handbook.

Lawyers on both sides, and a title company in the middle

A common Illinois closing has a lawyer for each side and a title company running settlement. The Illinois page explains why, and the closing-by-state comparison shows how unusual that is.

FHA does not change who is at the closing table. It does add a check: the handbook lists the seller (unless the home is the seller's own principal residence), both real estate agents, the loan originator, the processor, the underwriter, the appraiser, the closing agent and the title company among the parties HUD's exclusion lists are run against. Your lender handles that, and nothing is asked of you for it.

The spouse who is not on the loan

In Illinois a release, waiver or conveyance of the homestead estate is valid only in writing and signed by the owner and the owner's spouse, under 735 ILCS 5/12-904. The FHA handbook lines up with that. When state law makes a spouse's signature necessary for a valid first lien, the lender must have a spouse who is not on the loan sign the mortgage or a document giving up rights to the property.

What the handbook asks your spouse to sign is the mortgage or a document giving up rights to the property, and not the note. How each state handles the spouse's signature is compared on one page.

Illinois is not on the IRS's list of community property states in Publication 555. FHA has a rule that pulls a credit report on a spouse who is not on the loan and counts that spouse's debts. It is triggered when you live in one of those states or the property is in one, so an Illinois property does not trigger it on its own.

Transfer tax, the owner's policy and an FHA closing

Illinois transfer tax can come from the state, the county and a home-rule municipality, and who pays it varies with the local ordinance and the contract. The Illinois State Bar says that in most Illinois communities the seller commonly provides the buyer's owner's title policy, and it recommends putting that in the contract.

FHA lets a seller or other party with an interest in the sale contribute up to 6 percent of the sales price toward your closing costs, prepaid items and discount points. That money cannot count toward your 3.5 percent minimum down payment. The seller's side of an Illinois contract can use that room, and seller extras under FHA shows what the handbook allows.

The rest of FHA, in one paragraph

The general mechanics are in the FHA explainer. FHA works from the middle of your three credit scores. At 580 or higher you are eligible for maximum financing, and from 500 to 579 the loan is limited to 90 percent of the value. Under 500 is not eligible. The upfront mortgage insurance premium is 1.75 percent of the base loan amount.

Where to start

When you're ready, you can see FHA priced for your own scenario, with closing costs for the actual Illinois jurisdictions included. What a pre-approval involves covers the letter, and how debt-to-income is figured covers the ratio that decides most FHA files. If you are a veteran, VA loans in Illinois are a separate conversation.

Nothing here is a loan approval, a denial, a commitment to lend, or legal advice. Loan limits are HUD's published 2026 figures.

Common questions

Is the FHA loan limit higher in Cook County than in the rest of Illinois?

No. HUD sets the same 2026 FHA limit in all 102 Illinois counties, Cook County included, and it is the national floor. The limit changes only with the number of units in the building, and a loan above it is a different kind of loan.

Can I use an FHA loan to buy a two-flat in Chicago and live in one unit?

Yes. FHA insures two- to four-unit properties, and the handbook requires at least one client on the loan to move in within 60 days of signing and to plan to stay for at least a year. A building with three or four units also has to pass the handbook's rental test.

Does my spouse have to sign if they are not on the FHA loan?

Often yes, because Illinois requires the spouse's signature to release the homestead, and the FHA handbook tells the lender to require the signature when it is needed for a valid first lien. The handbook asks for that signature on the mortgage or a release of rights, and not on the note.

Who pays for the owner's title insurance on an FHA purchase in Illinois?

In most Illinois communities the seller commonly provides it, according to the Illinois State Bar. It is a custom and not a law, so the purchase contract controls, and it is worth stating who pays in writing.

Does FHA let the seller pay part of my closing costs in Illinois?

Yes, within limits. The handbook allows up to 6 percent of the sales price toward closing costs, prepaid items and discount points, and it does not allow that money to count toward your minimum down payment.