Does Overtime and Bonus Income Count for a Mortgage in Arizona? 2026 Qualifying Rules

This is the single most common reason a pre approval comes back lower than a borrower expected. You know what you made last year. Your lender knows what your file supports, and those are two different numbers. Here is how underwriters actually calculate variable pay, what documentation moves the number up, and the trap that catches nurses, pilots, tradespeople and commissioned salespeople every year in the Valley.

The short version of the rule

Variable income counts when an underwriter can show two things: that you have received it long enough to call it stable, and that it is reasonably likely to continue. Everything else is arithmetic.

For conventional loans, Fannie Mae and Freddie Mac both treat a two year history as the standard for most income types. Your lender pulls the year to date figure from your most recent pay stub plus the prior two W-2s, separates base pay from the variable piece, and averages the variable piece. FHA and VA follow the same logic with slightly different documentation. The practical result is identical across programs: you qualify on a multi year average, not on your current run rate.

That is the whole rule. The complications all come from how the average gets built.

How the average is actually calculated

Take a Chandler electrician earning $38 an hour base with heavy overtime. Here is what the file looks like.

Base pay is easy. It is the hourly rate times the scheduled hours, $6,587 a month, and nobody averages it. The overtime is where the work happens. The underwriter has 32 months of overtime history totaling $78,600, which averages to $2,456 a month. Add the base and this borrower qualifies at roughly $9,043 a month, or $108,516 a year.

Notice what did not happen. The 2026 pace, $22,900 over eight months, annualizes to about $34,350. The borrower feels like a $113,000 earner. The file supports $108,500. On a 30 year loan at current rates that difference is worth somewhere around $35,000 to $45,000 of purchase price, which in this market is the difference between a Gilbert listing and a Queen Creek one.

Some underwriters use 24 months rather than the full 32, which usually helps a borrower whose overtime is climbing and hurts one whose overtime is flat. Ask your loan officer which method the investor on your file uses before you assume a number. If you want to see how the qualifying income translates into a payment and a price, we walked through the full calculation in our guide to how much house you can afford in Arizona.

The declining income trap

This is the one that costs people houses, and it is worth understanding before you apply rather than after.

If your variable income is lower in the most recent period than in the prior period, the underwriter cannot simply average the two. Guidelines require them to analyze the trend. In practice that means one of three outcomes. They use the most recent, lower 12 month figure instead of the average. They ask for a written explanation from you and a statement from your employer about expected hours going forward. Or, if the decline is steep and unexplained, they exclude the variable income entirely and qualify you on base pay alone.

A Phoenix nurse who picked up crisis shifts in 2024, worked a normal schedule in 2025, and is back to baseline in 2026 will almost always be qualified on the 2026 pace, not the two year average. That is not a lender being difficult. It is the guideline working as written, because the 2024 number genuinely is not repeatable.

The flip side is real too. If your overtime is rising and you can document why, a strong letter from your employer confirming the increase is expected to continue can support using the higher recent figure. Underwriters accept that far more often than borrowers expect, but somebody has to ask for the letter, and it has to come from someone with authority, not a coworker.

When a 12 month history is enough

Two years is the standard, not an absolute floor. Both conventional agencies allow a shorter history when the income is stable, consistent and clearly likely to continue, and when the automated underwriting system returns an approval with that documentation.

Where we see a 12 month history work: a borrower who changed employers but stayed in the same field and the same role, a union tradesperson whose overtime is contractually scheduled, a hospital employee on a documented differential, and a salesperson whose commission structure is spelled out in an offer letter with a guaranteed draw.

Where it does not work: a brand new commission role with no track record, a side gig that started nine months ago, and overtime at an employer who has just announced a slowdown. The question an underwriter is answering is not whether you earned it. It is whether you will keep earning it, and a short history with no structural reason behind it does not answer that.

Because a broker places files with several wholesale lenders rather than one, this is an area where shopping genuinely matters. Investor overlays on variable income are not uniform, and the same pay stubs can produce two different qualifying incomes at two different lenders. That is a large part of what our team at Pillar Mortgage Group is weighing when we decide where a file goes.

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What to have ready before you apply

Variable income files stall on documentation more than anything else. Gather these five things up front and you will cut a week off your approval.

• Your two most recent W-2s. Not your tax returns, the actual W-2s, because the underwriter needs Box 1 separated by year.
• Your most recent 30 days of pay stubs showing year to date totals with overtime, bonus and commission itemized on separate lines. If your employer lumps everything into one gross figure, ask payroll for a breakdown. A file that cannot separate base from variable usually gets qualified on the lower of the two interpretations.
• An employer letter if your hours or structure changed. One paragraph on company letterhead, signed by a manager or HR, stating the change and whether it is expected to continue.
• Your offer letter or commission plan if you are commissioned. The written structure is what lets an underwriter argue continuance.
• A short written explanation of any year that looks unusual. Two sentences. A borrower supplied reason beats an underwriter guessing every time.

Expect a verbal verification of employment within a few days of closing as well. If you are changing jobs mid process, tell your loan officer immediately rather than hoping it goes unnoticed, because it will not. We covered what actually happens in that scenario in our piece on changing jobs during a loan, and the purchase side works the same way.

How to protect the income before you buy

Three moves make a measurable difference, and all of them happen before you write an offer.

1. Get fully underwritten, not just pre qualified. On a variable income file this matters more than on a salaried one, because the qualifying number is a judgment call that an underwriter has to actually make. A credit approval with the income already calculated means your offer is as strong as a cash buyer's in the eyes of a listing agent. Our Arizona pre approval guide walks through the difference.
2. Do not change your pay structure mid process. Moving from hourly with overtime to a salaried role sounds like a promotion and frequently lowers your qualifying income, because the overtime history stops being usable the moment the structure that produced it ends. If that change is coming, close first or talk to your lender before you accept.
3. Time your application around your bonus. If a meaningful annual bonus hits in February, applying in March with that W-2 and pay stub in hand is worth more than applying in January on last year's numbers.

Honest caveat. Qualifying at the top of what your variable income allows is not the same as a payment you should sign up for. Overtime is the first thing to disappear in a slowdown, and a mortgage payment built on 100% of a two year overtime average assumes a schedule that is not guaranteed to you in writing. We regularly advise buyers in this position to qualify on the average and then buy at their base pay comfort level, keeping the variable income as the cushion rather than the foundation. That is a smaller house than the approval letter allows. It is also a house you keep when the hours get cut.

Arizona buyers do have room to negotiate right now. Inventory across Metro Phoenix has improved, bidding wars are the exception rather than the rule, and seller concessions toward closing costs and rate buydowns are showing up regularly on listings that have been sitting. Homes.com covered the current leverage picture in its look at buying a home in September 2026, and a seller credit toward a buydown is often worth more to a variable income buyer than a price cut of the same size, since it lowers the payment the underwriter is measuring against.

If you want to see the full set of programs a broker can place a variable income file with, our loan programs page lists them, and our Scottsdale mortgage broker page is the place to start a conversation. Still looking for the home itself? Browse current listings across Phoenix and Scottsdale at Arizona Luxury Property Search, then send us the address and we will tell you what your income actually supports on that specific property.

For the underlying consumer rules on how lenders must disclose what they are qualifying you for, the Consumer Financial Protection Bureau publishes the plain language version, and the U.S. Department of Labor sets out which employees are entitled to overtime pay in the first place, which is worth confirming if your employer has recently reclassified your position.

Frequently asked questions

Does overtime count as income for a mortgage in Arizona?

Yes. Overtime counts toward an Arizona mortgage when you have a documented history of receiving it and it is likely to continue. Lenders generally want a two year history and qualify you on the average across that period rather than on your most recent pace. A shorter 12 month history can work when the income is stable and the automated underwriting system approves the file with that documentation.

How many years of bonus income do lenders need?

Two years is the standard for bonus and commission income on conventional, FHA and VA loans. The lender averages the bonus across that period and adds the monthly result to your base pay. A 12 month history is sometimes acceptable when there is a structural reason the income will continue, such as a written commission plan or a contractual shift differential.

What happens if my overtime went down last year?

The underwriter has to analyze the trend rather than average it. If the most recent period is lower, they typically qualify you on the lower recent figure, ask for a written explanation and an employer statement about expected hours, or exclude the variable income and use base pay only. A documented reason for the decline gives the underwriter something to work with.

Can I get a mortgage with only commission income?

Yes. Commission only borrowers qualify regularly in Phoenix and Scottsdale. The lender averages your commission over 24 months using W-2s and pay stubs, and a written commission plan or offer letter helps establish that the income will continue. If commission income is declining year over year, expect the lender to use the lower recent figure.

Why is my pre approval lower than what I actually earn?

Almost always because your variable income is being averaged over two years instead of counted at your current pace, or because a declining trend forced the underwriter to use the lower figure. Separating base pay from overtime and bonus on your pay stubs, and documenting any year that looks unusual, is the fastest way to close that gap.