HomeReady boarder income can help you qualify for a mortgage with rent you already receive from a roommate. For an eligible one-unit home, you must document twelve months of shared residence. You must also document rent paid to you for the last twelve months, or at least nine of those months with the income averaged over twelve. A promise to start paying after you buy does not establish that history. See Fannie Mae’s HomeReady requirements.

This explanation reflects the rules available on October 12, 2026, checked against the Selling Guide published October 7.

What counts as HomeReady boarder income?

A boarder pays rent to share your home. The person can be related to you, but cannot be obligated on the mortgage or have an ownership interest in the property under this HomeReady provision. The qualifying income is the rent you receive.

A co-borrower’s income is evaluated as income of another person responsible for the loan. Rent from an accessory dwelling unit, or ADU, also falls into a different category. An ADU is an independent living area with its own living, sleeping, cooking and bathroom facilities, and Fannie Mae evaluates its income under separate rental-income rules. The agency’s income-flexibilities fact sheet illustrates the distinction.

The general boarder-income section, dated March 4, 2026, says boarder income generally is ineligible, with specified exceptions, including HomeReady. Its general twelve-month payment-history language does not explain HomeReady’s nine-of-twelve-month alternative. For that exception, use the HomeReady section, B5-6-02, dated November 5, 2025. Neither page establishes a roommate-income allowance for every conventional mortgage.

Document residence and payments separately

Shared residence and payment receipt answer different questions. A matching address does not establish that money changed hands; a transfer does not establish that the sender lived with you.

These are separate requirements in B5-6-02. The shorter payment-history alternative does not shorten the residence requirement.

Organize address records separately from payment records. A month-by-month index can identify each payment’s date, amount, sender, recipient and supporting document. Use the index to help the lender find the evidence; it is not evidence by itself.

Fannie Mae’s general documentation guidance also recognizes bank statements and electronic payment evidence. If you used a payment app, provide records that let the lender trace receipt, rather than only a screen showing an amount.

Payments directly to your landlord do not count

HomeReady excludes rent the boarder pays directly to a third party. If your roommate sends their share straight to your landlord, those payments are not acceptable boarder income received by you, even though the arrangement reduces your housing expense. The HomeReady section states this exclusion expressly.

Average the payments over twelve months

Consider a hypothetical borrower with $2,800 in other qualifying gross monthly income. Assume the same roommate has lived with the borrower throughout the required twelve months, will move into the purchased home, and has made nine documented $800 payments during the lender’s twelve-month review period.

Dividing by nine would produce $800, overstating the twelve-month average by $200 a month. Fannie Mae’s November 14, 2025 fact sheet uses the same method: total documented payments divided by twelve.

If the payments vary, total the accepted amounts rather than multiplying the latest rent by the number of months. These figures illustrate the averaging calculation; the lender still must determine whether the income is stable and usable.

Apply the 30% cap to total qualifying income

Boarder income can supply no more than 30% of the total gross income used to qualify. That total includes the boarder income being counted, as specified in the HomeReady underwriting rule.

With $2,800 in other qualifying income, $1,200 in accepted boarder income would produce a $4,000 total. The boarder’s share would be exactly 30%. Multiplying only the $2,800 by 30% would give $840, using the wrong denominator.

The cap does not let you increase the documented amount. In the nine-payment example, the twelve-month average remains $600.

Check HomeReady’s separate income limit

HomeReady’s income ceiling is 80% of area median income for the property’s location. The lender counts qualifying income from borrowers signing the note and must use Fannie Mae’s applicable AMI figures. Counted boarder income is part of that qualifying total. Adding it may help the repayment calculation while pushing the total above the program ceiling. See HomeReady loan and borrower eligibility.

HomeReady also has an education requirement for purchase loans when all occupying borrowers are first-time homebuyers. Our explanation of homebuyer education and housing counseling covers that preparation; mortgage program eligibility provides broader context.

As you prepare for a home purchase, have your loan officer review the records before you include roommate income in your purchase budget. Ask for the accepted payment months, the twelve-month average, the boarder’s percentage of total qualifying income and the applicable HomeReady income limit.