How to Get a Commission-Based Income Mortgage Prequalification (Without Hurting Your Credit)

Commission-based earners face a mortgage process that flat-salary borrowers never see: underwriters average two years of variable income, discount it for business expenses, and sometimes flag a strong year as unreliable just because the prior year was weaker. Layer on the fact that most lenders run a hard credit pull just to hand you a prequalification letter, and it’s easy to see why sales reps, real estate agents, and recruiters put off getting prequalified. This guide walks through exactly how underwriters calculate commission income and how to get prequalified through a soft pull mortgage pre-qualification with zero credit score impact. Before you start, gather two years of tax returns and your most recent pay stubs.

Step 1: Gather Your Commission Income Documentation

Commission income documentation is more involved than a simple pay stub, because underwriters need to see a pattern, not a snapshot. Have these ready before you request a prequalification:

• Two full years of personal tax returns (1040s), including all schedules
• W-2s if you’re a commissioned employee, or 1099s if you’re paid as an independent contractor
• 60 to 90 days of recent pay stubs showing year-to-date commission earnings
• A year-to-date profit and loss statement if you file Schedule C

Lenders ask for two years of history because commission is classified as variable income, unlike a salary that shows up the same on every pay stub. A single strong month, or even a single strong quarter, doesn’t tell an underwriter anything about whether that income is likely to continue. Two years of tax returns lets them see a trend: is your commission growing, holding steady, or declining, and by how much.

The most common mistake commission-based borrowers make at this stage is submitting only their most recent pay stubs and skipping the tax returns, assuming a strong current quarter will speak for itself. It won’t. An underwriter reviewing an incomplete file will simply flag it as unverifiable and ask for the missing years, which slows down your prequalification and can cost you leverage if you’re already in a competitive housing market. Pulling everything together up front, even before you talk to a broker, is the single fastest way to move from application to an accurate prequalification letter.

Duane Buziak, NMLS #1110647, reviews commission documentation this way on every file before running numbers, because a prequalification built on partial information isn’t worth the paper it’s printed on.

Step 2: Calculate Your Qualifying Income the Way Underwriters Do

Once your documents are in hand, the next step is understanding how that income actually gets converted into a number a lender will use to qualify you. The standard method is 24-month averaging: add your commission income from the two most recent tax years, divide by 24, and that’s your monthly qualifying income before adjustments.

Adjustments matter. If you file a Schedule C for unreimbursed business expenses, mileage, home office costs, marketing spend, those deductions reduce your net income for tax purposes, and underwriters use the net figure, not your gross commission checks. A borrower who earns $200,000 in gross commissions but writes off $40,000 in business expenses will be qualified on something closer to $160,000, not $200,000.

There’s also a declining-income rule to know. If your commission income drops more than 20% year over year, most underwriters won’t average the two years together. Instead, they’ll either use the lower of the two years as your qualifying income or require a written letter of explanation documenting why the drop happened and why it won’t continue, a territory change, a market slowdown, a temporary leave. Without that explanation, the lower year typically becomes your ceiling.

Here’s a simple worked example. Suppose you earned $180,000 in commission last year and $150,000 the year before. Add them: $330,000. Divide by 24 months: $13,750 per month in qualifying income, before any Schedule C deductions are subtracted. That’s the starting point your debt-to-income ratio gets built on, and it’s very different from simply annualizing your best month or best quarter, which is a mistake many first-time commission borrowers make when estimating what they can afford.

Step 3: Match Your Income Profile to the Right Loan Program

Not every loan program treats commission income the same way, and picking the wrong one can cost you approval odds or purchasing power. FHA loans generally require two years of commission history but allow more flexibility on debt-to-income ratios, which can help a borrower whose income is strong but whose expense write-offs are heavy. VA loans, available to eligible veterans and service members, also use the 24-month averaging approach but often pair well with commission earners who have solid residual income, since VA underwriting weighs residual income alongside the DTI ratio. Conventional loans tend to be the strictest about documentation consistency and are more likely to trigger the declining-income rule if your two years don’t align closely.

Loan size matters here too. As of 2026, the standard conforming loan limit is $806,500, with a high-cost area limit of $1,249,125. Commission-based buyers targeting homes near or above these thresholds need a program that can accommodate a jumbo loan if their income, once averaged and adjusted, doesn’t stretch far enough for a conforming limit. This is exactly the kind of borrower where the loan-program decision has real dollar consequences, not just paperwork consequences.

A single bank typically underwrites to one set of internal overlays, rules layered on top of FHA, VA, or conventional guidelines that can be more conservative than the guidelines require. If that bank’s overlay treats a 15% income dip as disqualifying, you’re stuck, even if FHA or VA guidelines would allow it with an explanation letter. A broker working with multiple wholesale lenders, in Duane Buziak’s case, more than 500, can shop your file to a lender whose overlays actually fit a variable-income borrower, rather than forcing your income to fit one bank’s rulebook.

Step 4: Request a Soft Pull Mortgage Prequalification Instead of a Hard Pull

Once your documentation and program are lined up, the next decision is how your credit gets checked, and this is where most commission-based borrowers get blindsided. Duane Buziak uses what he calls the NoTouch Credit Pull, a soft pull mortgage pre-qualification process that estimates your buying power and reviews your credit profile without generating a hard inquiry on your credit report. You get a real prequalification letter without a no hard inquiry mortgage pre-approval trade-off working against you.

That distinction is not cosmetic. According to the Consumer Financial Protection Bureau, a hard inquiry can lower a credit score by roughly 5 to 10 points and remains visible on a credit report for up to two years. For a commission-based borrower whose income already fluctuates and whose file may already sit near a program’s minimum credit threshold, those points matter far more than they would for a borrower with room to spare.

Consider the math. A borrower sitting at 620 who takes a hard pull and drops to 610 on a $300,000 conventional loan can see their rate tier shift enough to add roughly $40 to $60 to the monthly payment, depending on the lender’s pricing grid that day. Over a 30-year term, that gap compounds to several thousand dollars in extra interest, money spent purely because a credit check happened before an offer was even written. A mortgage pre-approval without hard pull avoids that risk entirely, letting you shop loan programs and lenders while your score stays exactly where it was before you started looking.

This matters even more for commission earners specifically, because you may need to shop two or three loan programs before finding one whose overlays fit your income pattern. Each hard pull from each lender stacks additional risk onto your score. A no credit impact mortgage pre-qual lets you compare options as many times as you need without that cost.

Step 5: Address Underwriter Red Flags Before They Become Problems

Underwriters reviewing a commission-based file are trained to look for a specific set of warning signs, and getting ahead of them during prequalification, rather than after you’re under contract, saves both time and negotiating leverage. The three most common red flags are: a year-over-year income drop greater than 20%, gaps or inconsistencies in commission history between tax years and pay stubs, and a recent change of employer or brokerage.

A recent job change is worth flagging honestly, even if it feels risky to disclose. Underwriters will find it in your W-2s or 1099s regardless, and a borrower who volunteers the explanation, same industry, higher commission structure, no gap in pay, comes across very differently than one who lets an underwriter discover it independently mid-process.

When income volatility is real rather than just a documentation issue, reserves can offset it. Having two to six months of mortgage payments in verified savings after closing tells an underwriter you can absorb a slow commission quarter without missing a payment. A co-borrower with stable, salaried income can accomplish the same thing, sometimes more effectively, since it changes the blended income calculation rather than just cushioning against a shortfall.

The mistake to avoid is assuming one bad year automatically disqualifies you. It doesn’t, not on its own. What disqualifies borrowers is showing up to a purchase contract with an unexplained dip and no reserves, forcing a scramble against a closing deadline. Raising these issues during prequalification gives your broker time to structure the file, gather explanation letters, or shift you to a program built for exactly this situation.

Step 6: Compare Prequalification Options Side by Side

Commission-based borrowers benefit from seeing the differences between prequalification approaches laid out plainly, because the marketing language from most lenders sounds identical until you look at the mechanics.

Large national lenders, whether that’s a big retail brand or an online-first shop, and most retail banks, default to a hard pull as a standard part of their prequalification workflow, even for a simple letter that doesn’t lock a rate. That practice makes sense for their process, but it puts commission-based borrowers, who often need to compare multiple loan programs before finding the right fit, at a disadvantage every time they shop.

A no hard inquiry mortgage pre-approval process removes that penalty. You can compare an FHA program against a conventional program, or check whether a jumbo loan makes more sense given your averaged income, without watching your score erode each time you ask a new question. For a borrower whose income already requires extra underwriting scrutiny, protecting the credit score side of the equation is one less variable working against approval.

Step 7: Lock In Your Letter and Start House Hunting

Once your prequalification letter is issued, it typically stays valid for 60 to 90 days, though the exact window depends on the lender and how quickly your income documentation might age out. If your home search runs longer than that, plan to refresh the letter with updated pay stubs rather than letting it expire and scrambling once you’ve found a house you want to offer on.

When you hand your prequalification letter to a real estate agent, include a short packet alongside it:

1. Proof of funds for your down payment and reserves
2. A summary of your documented two-year commission average and how it was calculated
3. The specific loan program you’ve been matched to, FHA, VA, conventional, or jumbo

Agents working with commission-based buyers appreciate seeing the income calculation spelled out, because it helps them write a competitive offer with confidence that the financing behind it has already been stress-tested against underwriting rules, not just estimated from a pay stub.

One more advantage worth noting: because your prequalification was built on a mortgage pre-approval without hard pull, your credit file shows no recent inquiry tied to the process. That keeps your options open if you later want to refinance, pursue a second property, or restart a search in a different price range, since you’re not carrying a no credit impact mortgage pre-qual footprint that other lenders might read as recent shopping activity.

Commission-Based Prequalification: Frequently Asked Questions

How do lenders average commission income for a mortgage?
Most lenders add your commission income from the two most recent tax years and divide by 24 to get a monthly qualifying figure, then subtract any Schedule C business expense deductions.

How much commission history do I need to qualify?
Two full years of documented commission history is the standard requirement across FHA, VA, and conventional loans.

Does declining commission income disqualify me?
Not automatically. A drop of more than 20% year over year typically means the underwriter uses the lower year or requires a written explanation, rather than an automatic denial.

What is a soft pull mortgage pre-qualification?
It’s a prequalification process, like the NoTouch Credit Pull, that reviews your credit profile without generating a hard inquiry, so your score isn’t affected.

Will getting prequalified hurt my credit score?
Only if the lender uses a hard pull. A soft pull process leaves your score completely untouched, which is the basis of Duane Buziak’s prequalification model.

How long does a mortgage prequalification letter last?
Most letters remain valid for 60 to 90 days, after which updated income documentation is usually required to refresh it.

Which loan program works best for commission-based buyers?
It depends on your DTI and documentation, but FHA and VA loans often offer more underwriting flexibility than conventional loans for variable-income borrowers.

How do I start a prequalification with Duane Buziak?
Submit your two years of tax returns and recent pay stubs through Free Prequals by Duane Buziak’s online form to begin a free, no credit impact mortgage pre-qual.

Start Your No-Credit-Impact Prequalification Today

Commission-based income doesn’t have to be a liability in the mortgage process, it just requires a broker who knows how to document it, average it correctly, and match it to a program built for variable pay. Get your free mortgage prequalification today and discover exactly what you can afford, with no obligation and no out-of-pocket closing options required to get started. Work with award-winning Mortgage Maestro Duane Buziak and put his industry connections, lender network, and underwriting expertise to work for your file.