What changed about the FHA boarder income rule in 2025?

FHA updated its guidance so that boarder income no longer requires a two-year documented history. Under the change, which applies to loans with case numbers assigned on or after March 14, 2025, you generally need a twelve-month history instead. Specifically, the income needs to have been received during at least nine of the most recent twelve months, still be currently received, and it is averaged over the full twelve months. That last part matters: because it is averaged over twelve months, any gaps lower the amount that can actually be used. The practical effect is that far more people who take in a roommate can now count that income sooner than they used to be able to.

How much boarder income can I use to qualify for an FHA loan?

There is a ceiling. Boarder income used to qualify generally cannot make up more than 30% of your total monthly qualifying income. So it is a meaningful boost for many buyers, but it is designed to be a supplement to your main income, not a replacement for it. The exact figure that can be used in your case depends on how consistent the rent has been over the past year, how it is documented, and the rest of your file, so a lender needs to run your specific numbers rather than give you a blanket amount.

What documents do I need to prove boarder income?

You generally need two things. First, proof that the rent was actually received — that can be tax returns, bank statements, canceled checks, or deposit slips showing the money coming in consistently. Second, a written, signed rental agreement documenting the boarding arrangement. Both pieces matter. Rent paid in cash with no paper trail is the most common reason this does not work, because there is no way to verify it. If you are even thinking about using boarder income down the road, the honest advice is to start creating that paper trail now: put the arrangement in writing and have the rent paid in a way that is traceable.

Who does the FHA boarder income rule help most?

It tends to help buyers who already have someone contributing rent, or who realistically will. That includes a single parent whose adult child or roommate pays toward the household, someone buying a home with a spare bedroom or in-law suite they plan to rent, and buyers house hacking — using rent from part of the home to help carry the mortgage. In the Lowcountry, where multigenerational households and shared living are common and affordability is the whole conversation, this rule can be the difference between not yet and being able to move forward. It is not a fit for everyone, and it does not guarantee approval — it is one factor an underwriter weighs alongside your credit, your other income, and the full picture.

Does boarder income work on any FHA home purchase?

Boarder income is tied to the idea of someone renting space inside the home you live in as your primary residence, not a separate investment property. The boarder is a person sharing your home, such as a roommate or a family member in a spare room or in-law suite. Beyond that, all the normal loan requirements still apply: credit, the property itself, appraisal, and full underwriting review. So the boarder income rule can help you qualify, but it sits inside the same process every FHA loan goes through. The way to know whether it fits your plans is to walk through your scenario with a lender before you start shopping.

How do I find out if boarder income could help me qualify?

Ask a lender to look at your specific situation — ideally before you start house hunting, because it can change what you are able to shop for. Bring the details of any rent you already collect: how long it has been coming in, how consistent it has been, and how it is documented. From there, a lender can tell you whether it can be counted, roughly how much of it, and what documentation you would need to firm up. There is no cost to ask, and it is a far better use of your time than assuming the rent you collect does not count when it might.

Renting Out a Room Can Now Help You Qualify for a Home in South Carolina (The FHA Rule Most Buyers Haven't Heard About)

Q: What is FHA boarder income?

Boarder income is the rent you collect from someone who lives in your home with you — a roommate, an adult child, or a tenant in a spare bedroom or in-law suite. On an FHA loan, that rental money can, in the right circumstances, be counted as part of the income used to qualify you for the mortgage. The key word is boarder: the person rents space inside your own home, which is different from owning a separate rental property. Whether it can be counted, and how much of it, depends on your documentation and your overall file, so the right move is to have a lender look at your specific scenario.

By Christa Votaw · NMLS #1111313·Published September 14, 2026·7 min read

A clean teal, navy, cream and amber illustration of a home with a rising bar chart, representing increased mortgage qualifying power from boarder income

The quick answer

If you already collect rent from someone who lives in your home — a roommate, an adult child, a tenant in a spare bedroom or in-law suite — that money may now help you qualify for an FHA loan. It's called boarder income, and a 2025 rule change made it far easier to use.

The old rule wanted a two-year history of that rental income. Now you generally need about twelve months — the rent has to have been received for at least nine of the last twelve months, still be coming in, and it's averaged over the full year. There's a ceiling: boarder income can't make up more than 30% of your total qualifying income, and you have to document it with things like tax returns, bank statements, or canceled checks, plus a written rental agreement.

This won't fit everyone, and it doesn't guarantee approval — it's one piece an underwriter weighs. But for a lot of Lowcountry buyers, it's the difference between "not yet" and "let's look." Ask me whether the rent you already collect could count for your specific scenario.

Most people have never been told this, so let me just say it plainly: if someone pays you rent to live in your home, that money might help you buy a house. I've watched buyers assume they were a year or two away from qualifying, when the rent already landing in their account every month could have counted — they just didn't know the rule had changed. It's one of the quieter shifts in the last couple of years, and it's exactly the kind of thing I think you deserve to hear about before you talk yourself out of even trying.

What actually changed

FHA loans — the government-backed program a lot of first-time and lower-down-payment buyers use — have long allowed something called boarder income. That's the rent you collect from a person living in your home with you. The catch used to be the history requirement: you generally had to prove a two-year track record of receiving that rent before it could count. For most people, two years is a long time to wait.

That's the part that changed. Under updated FHA guidance that applies to loans with case numbers assigned on or after March 14, 2025, the history requirement dropped to roughly twelve months. In plain terms:

The rent needs to have been received during at least nine of the most recent twelve months.
It has to be currently coming in — not something that stopped six months ago.
It's averaged over the full twelve months, so gaps pull the usable number down.

That last point is worth sitting with. Because the income is averaged across a whole year, a few missed months don't just disappear — they lower the amount that can actually be used to qualify. Consistency is the whole game here.

Who this tends to help

This isn't a loophole or a trick. It's a rule that finally lines up with how a lot of people already live. The buyers I see it help most:

A single parent with a roommate or an adult child who contributes rent toward the household every month.
Someone buying a home with a spare bedroom or in-law suite they plan to rent to a boarder.
House hackers — buyers using rent from part of the home to help carry the mortgage, so the house works a little harder for them.
Multigenerational households, which are common here in the Lowcountry, where more than one adult is contributing to the roof over everyone's head.

If any of that sounds like your life, the income you're already bringing in may count toward the home you want. That's the honest, in-your-corner part of this: nobody's asking you to change how you live. The rule just caught up to it.

What income counts — and what a "boarder" actually means

A boarder is someone who rents space inside the home you live in. A roommate, an adult child paying rent, a tenant in a spare room or an in-law suite — people sharing your primary residence. That's different from owning a separate rental property down the street, which is a whole other conversation with different rules.

The income has to be real and traceable. Boarder income means rent that's genuinely being received and can be verified. Cash slipped under the table with no record behind it doesn't count — not because anyone's being difficult, but because there's no way to prove it happened.

And remember the ceiling: boarder income generally can't make up more than 30% of your total monthly qualifying income. It's meant to be a boost on top of your main income, not a substitute for it. How much of it you can actually use comes down to how steady the rent has been and how well it's documented — which brings us to the part that trips people up.

What you'll need to document

This is where a little planning ahead pays off. To use boarder income, you generally need to show two things:

Proof the rent was actually received. That can be tax returns, bank statements, canceled checks, or deposit slips — records that show the money coming in consistently over the past year.
A written, signed rental agreement documenting the boarding arrangement — who's renting, and the terms.

Both pieces matter, and the missing paper trail is the single most common reason this doesn't work. If the rent has always been handed over in cash with nothing written down, there's nothing to verify. So here's my genuine advice, even if buying is still a year off: start the paper trail now. Put the arrangement in writing, and have the rent paid in a way that shows up on a statement. Future-you, sitting across from a lender, will be so glad you did.

Common mistakes I want you to avoid

Assuming it doesn't count. This is the big one. Plenty of people who could use boarder income never mention it because they didn't know it was allowed. If someone pays you to live with you, say so.
Keeping it all in cash. Untraceable rent can't be counted. The money is real, but if it can't be verified, it can't be used.
Waiting to write anything down. No rental agreement means a hole in your file. A simple signed agreement now protects you later.
Expecting it to carry the whole loan. With the 30% ceiling, boarder income is a supplement. It strengthens your file; it doesn't replace your main income.
Treating it as a guarantee. It's one factor an underwriter weighs alongside your credit, your other income, the property, and the full picture. It can open a door — it doesn't promise what's on the other side of it.

Key takeaways

Boarder income — rent from someone living in your home — can help you qualify for an FHA loan, and a 2025 change made it far easier to use.
The history requirement dropped from two years to about twelve months (received in at least 9 of the last 12 months, still current, averaged over the full year), for case numbers assigned on or after March 14, 2025.
There's a 30% ceiling — boarder income can't be more than 30% of your total qualifying income.
You must document it: tax returns, bank statements, canceled checks, or deposit slips, plus a written rental agreement. Untraceable cash doesn't count.
It fits single parents, spare-room and in-law-suite owners, house hackers, and multigenerational Lowcountry households.
It's one factor, not a guarantee — but it's worth asking about before you assume the rent you collect doesn't count.

Questions I get asked a lot

What is FHA boarder income, exactly?

It's the rent you collect from someone who lives in your home with you — a roommate, an adult child, or a tenant in a spare room or in-law suite. On an FHA loan, that money can, in the right circumstances, count toward the income used to qualify you. The person has to be a boarder sharing your own home, not a tenant in a separate rental property.

What changed in 2025?

FHA cut the history requirement from two years to about twelve months for loans with case numbers assigned on or after March 14, 2025. The rent needs to have been received in at least nine of the last twelve months, still be coming in, and it's averaged over the full year — so gaps lower the amount you can use. The upshot is that far more people can count this income sooner than before.

How much of it can I actually use?

Boarder income generally can't make up more than 30% of your total monthly qualifying income. It's a supplement to your main income, not a replacement. The exact figure depends on how consistent the rent has been and how it's documented, so it takes a look at your real numbers to say.

What do I have to document?

Two things: proof the rent was received — tax returns, bank statements, canceled checks, or deposit slips — and a written, signed rental agreement. Rent paid in cash with no record is the most common reason it doesn't work, because there's no way to verify it. If you might use this someday, start the paper trail now.

Who does this help the most?

Single parents with a contributing roommate or adult child, buyers with a spare bedroom or in-law suite to rent, house hackers, and multigenerational households — which are common here in the Lowcountry. It doesn't fit everyone and it doesn't guarantee approval; it's one factor an underwriter weighs.

How do I find out if it could help me?

Ask me to look at your scenario, ideally before you start house hunting since it can change what you're able to shop for. Bring the details of any rent you collect — how long it's been coming in and how it's documented — and I'll tell you whether it can count, roughly how much, and what you'd need to firm up. No cost to ask.

Wondering if the rent you already collect could help you qualify? Let's find out 🤍

Tell me a little about your situation — who's paying rent, how long it's been coming in — and I'll walk you through whether boarder income could help you qualify for your scenario, and what you'd need to document. No pressure, no obligation. Georgia, North Carolina, South Carolina & Tennessee.

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Hey, I'm Christa. I moved to Charleston in 2009 and haven't looked back — we've raised our three kids here and this community is genuinely home to me. Faith, family, and caring about people the right way are at the center of how I work. I want you to feel informed, comfortable, and never rushed — whether you're asking your first question or heading to closing. NMLS #1111313.

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Equal Housing Lender. Christa Votaw, NMLS #1111313. Clear Home Loans, a Division of Aspire Home Loans, LLC, NMLS #1955132. This article is for general educational purposes only and is not financial, legal, real estate, investment, or tax advice, and is not an offer or commitment to lend. Descriptions of FHA boarder income and the related documentation, history, and contribution requirements are general summaries of program guidance as of September 2026; the guidance is set by the U.S. Department of Housing and Urban Development / FHA, is subject to change, and applies as described only to loans that meet the applicable case-number and program criteria. Nothing here is a promise, prediction, or guarantee of loan approval, qualification, the amount of income that may be used, interest rates, monthly payments, loan terms, or down payment requirements. Boarder income is one of many factors evaluated in underwriting and does not by itself qualify any borrower. All loan programs are subject to credit approval, income and asset documentation, property and appraisal requirements, underwriting approval, and program availability, all of which may change without notice. Consult your tax advisor regarding the tax treatment of rental income. Not affiliated with, endorsed by, or acting on behalf of any government agency, including the Federal Housing Administration or the U.S. Department of Housing and Urban Development.