Self-Employed and Buying a Home: How Lenders Read Taxes

Every year between January and April, I get a version of the same call. Someone who owns a business in Methuen or Haverhill wants to buy this spring, their accountant is working on the return, and they want to know whether to file now or wait. Or worse, they already filed aggressively, took every deduction they could find, and now the qualifying income looks nothing like the money actually in their checking account.

Tax season and buying season overlap, which makes this the right month to sort it out. Here's how the income math actually works, and where the timing traps are.

What number lenders actually use

If you're a sole proprietor, your qualifying income starts at the bottom of Schedule C, not the top. Gross receipts don't matter for this purpose. We use net profit, then adjust it.

If you own an S-corp or a partnership, we look at your K-1, your W-2 wages from the business if you pay yourself that way, and usually the business return itself. Most lenders want business returns when you own 25% or more of the company. Distributions on their own generally don't count as income unless the business shows it can support them.

Then we average. The standard approach is a two-year average of that adjusted figure. If year two is lower than year one, most guidelines make us use the lower year, or at least explain the decline in writing. If year two is higher, you usually get the average, not the high year, unless the increase is well documented and stable.

That's the piece that surprises people most. Two strong years get averaged. One weak year drags the whole thing down and can require a letter explaining why.

The add-backs that work in your favor

The good news is that plenty of paper losses come back. Depending on the loan program, we can typically add back:

• Depreciation and amortization (Schedule C line 13, or the depreciation lines on a business return)
• Depletion
• Business use of home, in many cases
• One-time, documented non-recurring expenses
• Mileage depreciation on the standard mileage deduction, using the IRS depreciation rate for that tax year

Meals and entertainment usually get subtracted further, and business debt with less than a year remaining sometimes gets treated differently. The point is that your net profit is a starting figure, not the ending figure. I've had borrowers assume they didn't qualify based on line 31 and turn out to be fine once depreciation and a home office came back into the income.

If you have a rental in Lawrence or Lynn showing a loss on Schedule E, that's worth a second look too. Depreciation on a rental is often a large add-back, and a property that looks like it loses money on paper frequently cash flows once we're done.

Filing early, extending, and why the calendar matters

This is where I see real deals get delayed.

Once we're into the new year, lenders start asking for the prior year's return, and the cutoff isn't uniform. Some investors will accept the two years before it well into spring. Others want the most recent year as soon as we're past the filing deadline. If you filed an extension, plan on providing Form 4868, proof of any payment you made with it, and often a year-to-date profit and loss statement plus business bank statements.

A few practical rules I follow:

If your most recent year is your best year, file early. It raises the average and you get credit for it.

If your most recent year is weak, filing it locks that number in. Talk to your loan officer before you file, not after. Sometimes the answer is still "file," but you want to know what it does to the number first.

Extensions are workable but add paperwork. They're not disqualifying. They do mean more documents and more underwriter questions, and they matter more the closer you get to the October extension deadline.

Transcripts have to match. We pull IRS transcripts using a signed 4506-C on most loans. If you e-filed two weeks ago and the IRS hasn't processed it, the transcript won't be there yet. Paper filing can take considerably longer. If you owe and you're paying by check, keep the proof of payment, because underwriters will ask.

When aggressive write-offs cost more than they save

I try to stay in my lane here, because your CPA's job is minimizing tax and mine is qualifying you for financing. Those two goals sometimes disagree.

A borrower who writes their income down to a small net profit saves real money in April. That same borrower may find their purchasing power cut substantially two years running, because we're averaging both of those low years. In a market where a decent single family in Methuen or a two-family in Lawrence is competing against multiple offers, that gap matters.

If you know you want to buy within two years, it's worth a conversation with your accountant about the tradeoff. Not a suggestion to overstate anything, just a heads up that the number you file has a second life in a mortgage file.

When tax returns don't tell the story

Sometimes the returns just don't reflect the business, and that's fine. There are other paths, and I use them regularly:

Bank statement loans. Qualifying comes from deposits into business or personal accounts, typically 12 or 24 months, with an expense factor applied. Good for business owners with heavy legitimate write-offs.

1099-only programs. For contractors and commission earners who get 1099s but don't have clean returns.

Profit and loss programs. A CPA-prepared P&L carries the qualifying, usually with bank statements as support.

DSCR loans for investment property. These qualify off the property's rent versus its payment, not your personal income. No tax returns in the income calculation at all. For investors buying multifamily in Lynn, Lawrence, or Haverhill, this is often the cleanest route, especially when someone owns several properties and their Schedule E is complicated.

These programs generally price higher than conventional financing and often want more down. The tradeoff can absolutely be worth it. I've had self-employed buyers who could have qualified conventionally with two clean years, and buyers who were far better off on a bank statement loan. The only way to know is to run both.

Local notes

A lot of my self-employed clients in the Merrimack Valley are tradespeople, and their income is seasonal. Underwriters see a slow first quarter in a construction-adjacent business and get nervous. A year-to-date P&L that shows the same seasonal pattern in prior years usually settles that down.

I also work with people buying across state lines: Massachusetts residents purchasing in southern New Hampshire, or picking up a place in Florida or Maine. The income analysis doesn't change much state to state, but property taxes, insurance (especially in Florida), and condo requirements do, and those affect how much of your income gets absorbed by the payment.

Conforming loan limits change every year and vary by county, and some Massachusetts counties sit above the national baseline. Check the current figure on the FHFA site rather than relying on last year's number, because that line determines whether you're in conventional or jumbo territory.

Pulling it together

If you're self-employed and thinking about buying this year, gather this before you shop:

• Two years of personal federal returns, all pages and schedules
• Two years of business returns and K-1s if you own 25% or more
• Year-to-date P&L, and business bank statements for the last few months
• A short written explanation of any year-over-year income drop

Then get your income calculated before you write an offer. A pre-approval built on a real income worksheet holds up under underwriting. One built on an estimate you gave over the phone often doesn't, and finding that out after your offer is accepted is a bad week for everybody involved.