Ohio Permits the Co-Signer Its Neighbour Bans
Program and regulatory figures verified September 25, 2026. Details change; confirm your scenario with us.
Two neighbouring housing finance agencies define qualifying income in nearly the same words. One of them leaves a door open that the other nails shut.
What Ohio actually permits
On the government side the OHFA Government Program Guidelines are short: non-occupant co-signers and co-mortgagors are permitted as permitted by first mortgage guidelines. In other words, whatever FHA, VA or USDA allows, OHFA allows on top.
On the conventional side there is more detail and more restriction. Non-occupying co-signers are allowed for both Fannie Mae and Freddie Mac, though only for one-unit properties when using Freddie Mac, and not on manufactured homes. The maximum with a non-occupant co-signer is 95% loan-to-value and 105% combined loan-to-value on both Fannie Mae HFA Preferred and Freddie Mac HFA Advantage.
| Condition | With a non-occupant co-signer |
|---|---|
| Units | One only |
| Manufactured homes | Not allowed |
| Maximum LTV / CLTV | 95% / 105% |
| Loan types | Fannie Mae, Freddie Mac, and government per agency rules |
Why that is worth more than it looks
A co-signer only helps if their income lifts you over a hurdle without pushing you over a different one. In Ohio it does exactly that, because of how the income limit is written.
OHFA counts the income of the individuals who will both live in the property and be obligated on the mortgage note. Both conditions, not either. A non-occupant co-signer is obligated on the note but does not live there, so they fail the first prong and sit outside the OHFA income limit.
Meanwhile their income is available to the first mortgage's qualifying ratios under ordinary Fannie Mae, Freddie Mac, FHA, VA or USDA rules for that loan type.
The result is the rare structure that helps on one test without hurting on the other. It is not unlimited: the property must be one unit and cannot be manufactured, and the leverage caps drop slightly.
The Illinois comparison, which is genuinely instructive
We built the Illinois site the day before this one, and the contrast is sharp enough to be worth spelling out.
IHDA defines household income as the total income of any person expected to live in the qualified dwelling and be liable, or secondarily liable, on the note. Almost word for word the same test as Ohio.
But IHDA also states that it does not permit non-occupant co-borrowers, and repeats it as applying regardless of loan type or program. So the Illinois buyer cannot reach the structure at all.
| Ohio, OHFA | Illinois, IHDA | |
|---|---|---|
| Non-occupant co-signer | Permitted, one unit, not manufactured | Not permitted at all |
| Income test wording | Live in the property and be obligated on the note | Live in the dwelling and be liable on the note |
| Can a co-signer create headroom? | Yes | No |
The lesson generalises. Two agencies can share a definition and still reach opposite outcomes, because the definition is only half the rule. What surrounds it decides the answer. A buyer who has read about Illinois assistance, or been told by someone who has, may well believe a co-signer is impossible. In Ohio it is not.
The reverse caution applies too. If you are comparing a move across the state line, do not carry the Ohio answer into Illinois. The Illinois rules are here.
What the occupant borrowers still have to do
A co-signer does not relieve the occupants of anything. Occupant borrowers must agree to occupy the home as their principal residence within 60 days of the loan closing date, and to occupy it for a minimum of one year after closing unless the home is sold in the first year.
First-time homebuyer status is also tested on the occupying borrowers, and for the First-Time Homebuyer and Mortgage Tax Credit programs only occupant borrowers and their spouses can hold title. Next Home and FTHB Edge carry no title restriction. How first-time status is tested.
See also the full eligibility test and credit and DTI.
Frequently asked questions
Does OHFA allow non-occupant co-signers in Ohio?
Yes. The Government Program Guidelines permit non-occupant co-signers and co-mortgagors as permitted by first mortgage guidelines. The Conventional Program Guidelines permit them for both Fannie Mae and Freddie Mac, on one-unit properties only when using Freddie Mac and not on manufactured homes, with a maximum 95% loan-to-value and 105% combined loan-to-value.
Does a co-signer's income count toward the OHFA income limit?
Not if they do not live in the property. OHFA counts the income of the individuals who will both live in the property and be obligated on the mortgage note, so both conditions must be met. A non-occupant co-signer is obligated on the note but does not live there, so their income falls outside the OHFA program income limit while remaining available to the first mortgage's qualifying ratios under the relevant agency rules.
Why does Illinois ban co-borrowers when Ohio allows them?
The two agencies define income almost identically, both restricting it to people who live in the property and are liable on the note, but they differ on whether a non-occupant can be on the loan at all. IHDA in Illinois states it does not permit non-occupant co-borrowers regardless of loan type or program, so the structure does not exist there. OHFA permits it within limits, so an Ohio co-signer can add qualifying income without consuming program income headroom.
Can a co-signer be used on a manufactured home in Ohio?
No. OHFA's Conventional guidelines state that non-occupant co-signers are only allowed on one-unit properties and are not allowed on manufactured homes. Manufactured homes have their own requirements on an OHFA loan in any case, including a minimum 660 credit score and a doublewide requirement.
Does a co-signer change the occupancy rules in Ohio?
No. Occupant borrowers must still agree to occupy the home as their principal residence within 60 days of the loan closing date and must occupy it as their principal residence for a minimum of one year after closing, unless the home is sold in the first year. First-time homebuyer status is also tested on the occupying borrowers rather than on the co-signer.
Mike Certo · NMLS #260555 · Cornerstone First Mortgage NMLS #173855 · Equal Housing Lender. Cornerstone First Mortgage is a participating lender in the Ohio Housing Finance Agency's programs. The Ohio Housing Finance Agency is an Equal Opportunity Housing entity. Loans are available on a fair and equal basis regardless of race, color, religion, sex, familial status, national origin, military status, disability or ancestry. Please visit www.ohiohome.org for more information. Educational content about financing, not a loan commitment and not legal or tax advice. OHFA program terms and limits are set by the Ohio Housing Finance Agency and change; figures here carry the date we verified them. Loans are subject to borrower and property qualification.