How Much House Can Your BAH Actually Buy?

BLUF (Bottom Line Up Front)

An E-5 in San Diego with BAH of $3,975/month can afford a $458,244 home using a VA loan with $0 down. That same E-5 at Fort Hood? $174,673. With rates sitting at 6.5% and home prices that refuse to come down, the rent vs. buy decision has never been more consequential for military families. The difference isn't just cost of living. It's property tax rates, insurance costs, and the VA funding fee eating into your buying power. I built a calculator that does this math for you, because Zillow's mortgage tool sure as hell won't.

You're an E-5 in San Diego. BAH with dependents: $3,975/month. Your buddy just told you to "stop throwing money away on rent." Your parents agree. Your spouse is sending you Zillow links at 2am.

So you pull up a mortgage calculator. Punch in $3,975 as your monthly budget. It tells you that you can afford a $600,000 house.

That calculator is lying to you.

It doesn't know your housing allowance is tax-free, which changes the deduction math. It doesn't know about the VA funding fee that gets rolled into your loan balance. It doesn't know that you should probably keep 15% of your BAH as a maintenance buffer, not spend every dollar on the mortgage. And it definitely doesn't know you're PCSing in three years, which means closing costs and selling costs might wipe out any equity you build.

Military homebuying math is different. I needed a calculator that actually speaks the language. So I built one.

What Your BAH Actually Buys

Here's the reality check nobody gives you. I ran several scenarios through the Salute to Suit BAH Buying Power Calculator using 2026 BAH rates (with dependents), a VA loan at 6.5%, 30-year fixed, and the default 85% housing budget.

Two locations. Same ranks. Very different answers.

Look at that spread. San Diego BAH is roughly double Fort Hood's, but the max home price is more than double. Why? Texas property tax runs around 1.8%. California sits near 0.75%. Lower property tax means more of your PITI (principal, interest, taxes, and insurance) goes toward the actual mortgage payment, which means you qualify for a bigger loan.

And before you think San Diego is the better deal because the numbers are bigger, remember what those numbers buy you locally. $458,000 in San Diego might get you a condo or a small townhome. $174,000 near Fort Hood gets you a 3-bedroom house with a yard. BAH tracks local housing costs, so higher BAH doesn't mean more purchasing power relative to your market. It means the DoD is compensating you for a more expensive area.

The point isn't that San Diego is "better." The point is that generic calculators miss these variables entirely. Run your own numbers here.

If you haven't already looked up your 2026 BAH rate, I broke down every major duty station in my BAH rates guide.

VA vs. Conventional: The $0 Down Advantage (and What It Costs You)

The VA loan is one of the most powerful benefits you'll ever earn. $0 down. No PMI. But it's not free.

Here's the same E-5 in San Diego, three different loan scenarios:

The VA funding fee is 2.15% of your loan amount for first-time use (3.3% for subsequent use). On a $458,000 home, that's $9,852 rolled into your loan balance. You don't pay it out of pocket, but you're paying interest on it for 30 years.

If you have a VA disability rating of 10% or higher, the funding fee is waived entirely. At that point, the VA loan is genuinely $0 cost to enter. For the E-5, that bumps the max home price up to $466,849, roughly $8,600 more in buying power.

The conventional loan with 20% down ($113,130 cash) gets you the most house, $565,650. But most E-5s don't have $113,000 sitting around. And the 5% conventional actually gets you less house than the VA loan because PMI eats $250/month that could go toward a bigger mortgage.

Bottom line: unless you're sitting on a big down payment or your disability rating waives the fee, the VA loan is almost always the best path. Toggle between VA and Conventional in the calculator to see the difference with your numbers.

The 85% Rule, the 30% Rule, and the "Spend Your BAH" Mentality

If you've ever Googled "how much should I spend on housing," you've seen the civilian rule of thumb: no more than 28-30% of your gross income. Financial advisors love it. It's clean, simple, and completely misleading if you're military.

Here's why. An E-5 in San Diego makes roughly $3,400/month in base pay plus $3,975 in BAH. That's about $7,375 in gross monthly income. If the E-5 spends $3,379 on PITI (using 85% of BAH as a default), that's 46% of gross income going to housing. By civilian standards, that's reckless. By military standards, it's conservative. Because BAH exists specifically to cover housing. It's a separate, tax-free allowance calculated by the DoD based on what housing actually costs in your area. It's not "part of your salary." It's a housing stipend with a purpose.

But here's where it gets complicated. BAH is designed to cover approximately 95% of housing costs in your area, not 100%. The DoD has always expected service members to absorb a small out-of-pocket cost. So the "just spend your BAH, no more no less" mentality that gets passed around the barracks? It's not wrong, but it's incomplete. You're already expected to come out of pocket a little. The question is how much.

The calculator defaults to spending 85% of your BAH on PITI. That leaves 15% as a maintenance buffer for the stuff homeownership throws at you. New water heater. Broken HVAC. HOA fees. Lawn care. Those costs exist whether you're renting or buying, but as a homeowner, you can't call the landlord.

For the E-5 in San Diego, that 15% buffer is $596/month. Not nothing.

Now here's the thing the civilian rules completely miss. Add a spouse making $2,500/month and your total household income is about $9,875/month ($3,400 base pay + $3,975 BAH + $2,500 spouse). At 30%, you'd cap housing at $2,963/month. That's less than what a modest rental costs in San Diego, let alone a mortgage. The civilian rule would have you living in a studio.

The reality is that your spouse's income frees up capacity to spend more than your BAH on housing if the math supports it. The calculator lets you slide that housing budget from 50% all the way to 200% of BAH to model exactly this. At 150%, you're spending $5,963/month on PITI, with $1,988/month coming from outside your BAH. If that $1,988 is covered by a spouse's paycheck, it's a deliberate decision, not a reckless one.

Why would anyone go over 100%?

Because most military families have two incomes.

At 130%, an E-3 in San Diego jumps from a $422,000 home to a $646,364 home. That $1,100/month out-of-pocket could come from a spouse working part-time. Whether that's worth it depends on your household, your risk tolerance, and how long you're staying.

Going over 100% isn't reckless if you're doing it intentionally with a second income. Going over 100% because you fell in love with a house and convinced yourself it'll work out? That's how people get in trouble.

Slide the budget up in the calculator and watch your buying power change in real time.

Rent vs. Buy: The Math Nobody Does

Here's the conversation I hear constantly: "You're throwing money away on rent." And here's the thing. Sometimes that's true. Sometimes it's not. The answer comes down to one variable that most people ignore.

How long are you staying?

But first, let's set up the comparison properly. Because rent vs. buy is not as simple as "mortgage payment versus rent check."

The renter's advantage nobody talks about. At most duty stations, you can rent for less than your BAH. The E-5 in San Diego gets $3,975/month in BAH but can find a solid rental for about $3,379 (roughly 85% of BAH). That's $596/month left over. A smart renter doesn't blow that on bar tabs. They invest it.

$596/month invested at a conservative 7% annualized return starts compounding immediately. And here's the key: BAH historically tracks rent growth. The 2026 increase was 4.2%. The 2025 increase was 5.4%. Since BAH rates are recalculated annually based on local housing cost surveys, your surplus stays roughly proportional over time. The calculator grows both BAH and rent at the same rate (default 3%/year), so that $596/month keeps flowing into investments year after year. Over 7 years, that compounds to over $70,000. That's real money, and it's the renter's counterpunch to the "you're throwing money away" argument.

The buyer's advantage. Every mortgage payment builds equity through principal paydown. The home appreciates (I assume 3% annually). Over time, you own a real asset. But you also pay closing costs upfront, you're on the hook for maintenance, and when you sell, 6% walks out the door in agent fees.

So which wins? It depends entirely on how long you hold the home.

I ran this for the E-5 in San Diego. Home price: $458,244 (VA loan, $0 down). Rent: $3,379/month. Both BAH and rent grow at 3%/year. BAH surplus of $596/month invested at 7%.

Year 1: The renter is winning by nearly $20,000. Selling costs wipe out all the equity the buyer has built. If you PCS after 12 months, you would have been better off renting and investing.

Year 3: It's nearly a wash. The owner is ahead by only $2,160. The calculator calls this a toss-up. At this point, non-financial factors matter more than the numbers. Do you want the stability? Do you want to avoid landlord headaches? Those are valid reasons to buy even when the math is close.

Year 5: The owner pulls ahead. $69,028 in net equity versus $45,384 in renter investments. Appreciation is compounding. Principal paydown is accelerating. But the renter's portfolio is growing too, because BAH keeps pace with rent and the surplus keeps flowing into investments.

Year 7: The owner is ahead by $44,595. But notice the renter built $70,289 in investments. That's real wealth, not zero. The homeowner wins because appreciation and principal paydown outpace what the renter can invest with a $596/month surplus. But it's not the blowout that calculators show when they ignore the renter's investment option.

The break-even month is month 34. Before that, renting and investing wins. After that, owning wins and the gap widens every month.

That's why generic advice is dangerous for military families. If you're PCSing in 2 years, rent. If you're staying 5+, the math strongly favors buying. And if you're in that 3-year zone? Run your own numbers because the answer depends on your rate, location, and property taxes.

The 20-Year View: What a Career of Renting Actually Costs

Now zoom out. Same E-5. Same San Diego home. But instead of a 3-year hold, imagine staying 20 years.

San Diego E-5, 20-year projection:
- Cumulative rent paid (with 3% annual increases): $1,089,540
- Home equity (net of all costs): $530,574
- Renter's invested BAH surplus: $392,204
- Wealth gap: $138,370 in the homeowner's favor

The renter paid over $1 million in rent over 20 years but built $392,000 in investment savings from their BAH surplus. The homeowner built $530,000 in equity. The homeowner still wins by $138,000, but the gap is much smaller than most "rent is throwing money away" arguments suggest, because the disciplined renter was investing $596+/month the entire time.

Fort Hood E-5? Same story, smaller numbers. Home equity of $200,387 versus the renter's $167,147 in invested savings. Wealth gap of $33,240 in the owner's favor.

Now, here's the honest caveat. Almost no one stays at one duty station for 20 years. PCS moves interrupt the compounding. Selling costs reset your equity clock. This model assumes a single-home hold, which is the optimistic case.

But some military families play a different game entirely. They buy at each duty station, hold past the break-even point, and convert to rentals when they PCS instead of selling. Over a 20-year career with 4-5 moves, that's a small real estate portfolio generating passive income, all seeded by BAH at each location. The VA loan even lets you have multiple properties if you've paid down or sold previous ones. It's not the default path, and it's not risk-free, but it's how some service members turn the PCS cycle from a financial disruption into a wealth-building strategy.

Whether you're buying once, building a portfolio, or renting and investing the surplus, the principle is the same. Every dollar needs a job. The question is whether your timeline, your risk tolerance, and your duty station math support buying or renting at this stop.

What the Other Calculators Won't Tell You

I've used Zillow's calculator. Bankrate's. NerdWallet's. They're fine if you're a civilian with a W-2 and a 20% down payment.

They're useless for military homebuying. Here's what they miss:

BAH is tax-free. Civilian mortgage calculators assume your housing budget comes from taxable income, which changes how they calculate affordability and deduction value. Your BAH isn't taxed, period.

VA funding fees exist. No civilian calculator models the 2.15% (or 3.3%) funding fee that gets rolled into your VA loan balance. That's real money, $9,800+ on a typical purchase, and it affects your monthly payment.

Disability waivers change everything. A 10% VA rating eliminates the funding fee entirely. That's $8,600+ in savings that generic calculators can't model because they don't know what a disability rating is.

PCS timelines matter. A 3-year hold and a 7-year hold produce completely different rent-vs-buy verdicts. The calculator models this month by month so you can see exactly when buying starts winning.

The maintenance buffer is real. Spending 100% of your BAH on a mortgage leaves nothing for the $4,000 HVAC repair that's coming whether you budget for it or not. The 85% default exists for a reason.

Property tax varies wildly. Texas at 1.8% versus California at 0.75% versus Hawaii at 0.3%. The calculator auto-loads your state's rate so you're not guessing.

I built this because the tools that exist weren't built for us.

Run Your Numbers

The BAH Buying Power Calculator is live and free during beta. Enter your ZIP code, pick your rank, and it auto-fills your BAH rate. Toggle between VA and conventional loans. Slide the housing budget up if your spouse works. Set your PCS timeline. Get a verdict.

It takes about 60 seconds. The answer might save you tens of thousands over your career. Or it might tell you that renting is the smarter move at your current duty station. Either way, you'll know.

If something breaks, if the numbers look wrong, if you want a feature I haven't thought of yet, let us know. This was built this for you.

Data sources: 2026 DoD BAH rates (with dependents), VA.gov funding fee schedule, state property tax averages. All calculations assume 6.5% fixed rate, 30-year term, 3% appreciation, 3% rent growth, 3% BAH growth, 6% selling costs, $3,000 closing costs unless otherwise noted. Individual results will vary. This is not financial advice. Always consult with a licensed mortgage professional before making homebuying decisions.