The Military Tax-Free Income Gross-Up: What Most Loan Officers Miss
VA disability, BAH, BAS, combat pay, and military pension in tax-free states are all nontaxable — and all get grossed up 25% for mortgage qualifying. Miss this and veterans buy less house than they've earned.
What 'grossing up' actually means
Mortgage qualifying is a gross-income calculation. Your debt-to-income ratio compares your monthly debts to your pre-tax income. Nontaxable income never had taxes taken out — so if you compare it apples-to-apples with a W-2 borrower's gross pay, you'd be short-changing yourself.
The fix is the gross-up. Agency guidelines (VA, Fannie Mae, Freddie Mac, FHA) let a lender inflate documented nontaxable income by 25% to get an equivalent 'gross' number for qualifying purposes. A veteran with $4,000/month in VA disability qualifies as if they earned $5,000/month. Same veteran, same income — different math.
That extra $1,000/month can move a borrower from a $340k pre-approval to a $400k pre-approval at today's rates. That's not a rounding error. That's the difference between the house they wanted and a compromise.
Every military income source that gets grossed up
VA disability compensation — any rating, from 10% to 100%. Fully tax-free at the federal level, and tax-free in every state.
BAH (Basic Allowance for Housing) — nontaxable while on active duty. Guard and Reserve members receive it on drill weekends and on Title 10 orders.
BAS (Basic Allowance for Subsistence) — nontaxable. Smaller dollar amount, but it counts.
Combat pay, hazardous duty pay, hostile fire pay, imminent danger pay — nontaxable while serving in a designated combat zone. If it appears on the LES and there's a reasonable continuance, it can be grossed up.
Clothing allowance and family separation allowance — nontaxable where documented.
Military retirement pay — taxable federally, but state-tax-free in a growing number of states (and fully tax-free in some). The state-exempt portion can often be grossed up at 15% for the state-tax savings; check with your loan officer.
SSDI and other nontaxable disability benefits — grossed up when documented as nontaxable on tax returns or a benefit letter.
Nontaxable child support and alimony (post-2018 divorces) — grossed up with a court order and 6+ months of receipt.
Why most loan officers miss this
Three reasons. First, many LOs only ever apply the gross-up to VA disability because that's the example they were trained on. They forget BAH, BAS, and combat pay qualify too — even though those often add up to more than the disability payment.
Second, some LO software systems require the nontaxable income to be entered on a specific line to trigger the gross-up. If the LO drops BAH into the wrong field, it flows through the calculation without the 25% bump, and nobody catches it.
Third — and this is the hard one — some lenders quietly discourage the full gross-up because a lower pre-approval means an easier file to underwrite. That's not the borrower's job to notice. That's the LO's job to fix.
Worked example: a real veteran's numbers
SFC Alvarez is retiring after 22 years. His monthly income: $2,800 VA disability (70% rating), $2,400 BAH for his post-retirement zip code, $460 BAS, and $3,100 pre-tax military pension. Total: $8,760/month.
Without the gross-up, his qualifying income is $8,760. At a 43% DTI ceiling with $650 in existing debts, he qualifies for about $3,117/month of housing payment.
With the correct gross-up: $2,800 + $2,400 + $460 = $5,660 in nontaxable income, grossed up 25% to $7,075. Add his taxable pension of $3,100 and his qualifying income becomes $10,175/month. Same 43% DTI, same debts, but now he qualifies for about $3,725/month of housing payment.
At 6.25% on a 30-year VA fixed, that extra $608/month of payment capacity translates to roughly $85,000 in additional loan amount. Same veteran, same file, same income — $85k more house.
25% vs. 15%: which factor applies
25% is the standard default when the borrower's effective tax bracket is not documented. It approximates what a middle-income W-2 filer pays in federal + FICA + state taxes, which is why the agencies picked it.
15% applies when the borrower's most recent tax returns show a lower effective tax bracket — typically for very-low-income filers whose actual tax burden is under 25%. If you're borderline, ask your LO to pull last year's Form 1040 and run the effective-rate math both ways.
You never gross up nontaxable income above what its actual after-tax equivalent would be. If a borrower's real effective rate is 18%, the correct factor is 18% — not 25%. But absent documentation, 25% is the safe default.
What documentation the lender needs
VA disability: award letter from the VA (Form 27-125 or a benefits summary), plus your most recent bank statement showing the deposit.
BAH and BAS: current LES. Guard and Reserve: last 12 months of drill LESs, since income can vary.
Combat pay: LES showing the pay, and reasonable continuance (typically documented orders extending 12+ months).
Military retirement: retirement award letter and the DD 214 showing years of service.
For state-tax-exempt retirement: proof of residence in the exempting state (utility bill, driver's license).
If your current pre-approval doesn't reflect this
Ask your loan officer, in writing, which of your nontaxable income sources they grossed up and at what factor. If the answer is anything other than 'all of them, at 25%' — with a documented reason for a lower factor — you have room to argue for a bigger pre-approval.
If they push back, get a second opinion. This isn't discretionary; it's in the agency selling guides. Any lender who tells you BAH or BAS can't be grossed up is wrong, not cautious.
Run your own numbers with the calculator on this site before your next conversation. When you show up knowing what your qualifying income should look like, the conversation goes very differently.
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