How Much House Can I Afford in Michigan?

Why the price you typed into a calculator is probably wrong

Almost everyone starts the same way — they punch an income into an online affordability calculator, get a number, and either get excited or get discouraged. The trouble is that those tools know almost nothing about you. They don't see your car payment, your student loans, the credit-card balance you're carrying, or the way Michigan property taxes differ between Wayne County and Oakland County. They guess, and they guess generously, because a bigger number keeps you on the page.

A real affordability number is the product of four moving pieces: your income, your existing debts, your down payment, and your credit profile — all run through the cost realities of buying in Michigan specifically. Change any one and the answer moves. In 28 years I've watched two families with identical incomes qualify for homes $80,000 apart, purely because one had a paid-off car and a 760 credit score and the other was carrying $700 a month in loan payments. Same paycheck, very different house. Let's take the pieces one at a time.

The 28/36 rule, explained in plain English

The backbone of every affordability decision is something called your debt-to-income ratio — DTI for short. It's just a comparison: how much of your gross monthly income (that's income before taxes) is already spoken for by debt. Lenders look at it two ways, and the shorthand is the 28/36 rule.

The first number, 28, is your front-end ratio — your total monthly housing payment as a share of gross income. "Housing payment" here means the whole thing: principal, interest, property taxes, homeowners insurance, and any mortgage insurance, often abbreviated PITI. The guideline says keep that around 28% of your gross monthly income. Earn $7,500 a month gross, and 28% is roughly $2,100 toward housing.

The second number, 36, is your back-end ratio — your housing payment plus every other monthly debt: car loans, student loans, minimum credit-card payments, personal loans, child support. The guideline keeps that total near 36% of gross income. On that same $7,500, 36% is about $2,700, so if you're already paying $600 a month on a car and student loans, that leaves roughly $2,100 for housing — which is why your other debts directly shrink the house you can buy.

Now, the honest part nobody tells you online: 28/36 is a guideline, not a wall. Plenty of loan programs comfortably allow back-end ratios into the mid-40s, and some go higher with strong compensating factors — a big down payment, excellent credit, healthy savings in reserve. The 28/36 rule is the conservative starting line. Knowing how far a particular program will stretch beyond it is exactly the kind of thing a broker who shops 50-plus lenders can tell you that a single calculator never will.

What actually counts as income — including if you're self-employed

Since income is the top of the ratio, it pays to know what a lender will and won't count. For a salaried W-2 employee, it's straightforward: your gross base pay. Steady overtime, bonus, and commission income usually count too, but lenders typically want to see a two-year history and will average it, because they're looking for income they can trust to continue.

Other income that can count toward qualifying: part-time work with a stable track record, Social Security, pension and retirement distributions, child support and alimony you receive, and documented rental income from property you own. The common thread is durability — a lender wants reasonable confidence the income will keep showing up for the next few years.

Here's where it gets interesting for a huge slice of Michigan, because this is my specialty. If you're self-employed — a contractor, a realtor, a 1099 consultant, a shop owner — a conventional lender qualifies you on the income left at the bottom of your tax return after all your write-offs. And your accountant's entire job is to make that number small. I've sat across from business owners depositing $18,000 a month whose returns claimed they earned $55,000 a year. Conventional underwriting treats them as low earners. That's broken, and it's why bank-statement and other Non-QM programs exist — they qualify you on your actual deposits instead. If your tax return doesn't reflect what you really make, your affordability number on a conventional loan will be artificially low, and the fix is using the right program. My self-employed mortgage guide walks through exactly how that works.

Down payment, debts, and credit: the three dials that move your number

Your down payment does two jobs. Every dollar down is a dollar you don't borrow, so a larger down payment shrinks your monthly payment and lets the same income stretch over a higher purchase price. And putting 20% down lets you avoid private mortgage insurance, an extra monthly cost on most conventional loans with less than 20% down — though plenty of buyers put down far less and simply factor PMI into the payment. There's a path for nearly every savings level; the down payment mostly shifts how much house a given income supports, not whether you can buy.

Your existing debts work in the opposite direction, and their effect surprises people. Because the back-end ratio caps your total monthly obligations, every recurring payment you carry comes straight out of the room available for a mortgage. A $500 car payment doesn't just cost you $500 — at a 36% back-end ratio it can lower the home price you qualify for by tens of thousands of dollars. This is why paying off a car or a small loan before you buy can do more for your affordability than months of extra saving. If you're carrying debt, that's one of the first things I'll look at.

Your credit score shapes affordability through the terms you're offered and the programs you can reach. Stronger credit opens up more loan options and better pricing, which in turn affects your monthly payment and how much house your income covers. It also influences how much flexibility a lender will give you on those DTI ratios. You don't need perfect credit to buy a home in Michigan — there are strong programs for a wide range of scores — but where you sit on that scale is one of the dials, and it's worth knowing before you shop.

Michigan-specific costs that change the math

Affordability isn't national — it's local, because two big pieces of your housing payment are set by where in Michigan you buy. Remember, taxes and insurance live inside that 28% front-end ratio, so when they go up, the loan amount your income supports goes down.

Property taxes in Michigan are measured in millage and vary widely by community and school district. Two homes at the same price — one in a high-millage city, one in a lower-tax township — can carry meaningfully different annual tax bills, and that difference flows straight into your monthly payment. Michigan also has a quirk worth knowing: when a home sells, its taxable value can "uncap" and reset, so the new owner's tax bill is sometimes higher than what the seller was paying. Always look at the taxes you'll owe after purchase, not the line on the current owner's bill. It's a detail that catches first-time buyers off guard, and it's exactly the kind of thing I flag early.

Homeowners insurance is the other local variable. Premiums shift with the home's age, construction, roof condition, claims history, and proximity to water — and with Michigan's lake-effect weather, freeze cycles, and the occasional severe storm, insurance is not a rounding error. A waterfront cottage and a newer subdivision build can price very differently, and like taxes, the premium lives inside your monthly payment and your front-end ratio.

This is why I never quote affordability off income alone. The same paycheck buys a different house in Birmingham than it does in a lower-tax township an exit away.

How pre-approval turns a guess into a real number

Everything above is how the math works in theory. A pre-approval is how you find out what it means for you, specifically. Instead of estimating, a lender actually reviews your income documentation, pulls your credit, checks your debts, and verifies your down payment funds — then tells you the real maximum you qualify for, in writing.

That document does two things. It gives you a confident, accurate ceiling so you shop in the right price range instead of falling in love with a house you can't finance — or, just as often, underestimating yourself and missing the home you could have had. And it makes you a serious buyer. In a competitive Michigan market, a seller comparing offers takes a pre-approved buyer far more seriously than someone "still figuring out their budget." A pre-approval is the difference between hoping and knowing.

Because Atlantis Mortgage is a wholesale broker, my pre-approval isn't run through one lender's single rulebook. I can take your file to 50-plus wholesale lenders and find the program that gives you the most house your situation honestly supports — including the self-employed programs a retail bank simply doesn't offer.

A worked example: how the pieces fit together

Let me put it all together with round, illustrative numbers so you can see the machinery. This is a simplified example to show how the ratios work — not a quote, and not specific to any program.

You'll notice I haven't printed a rate or a specific monthly payment anywhere in that example. That's deliberate. Real pricing depends on your credit, your down payment, the property, and the program — any number I printed here would be wrong for your file. The example shows you how the levers connect; your actual number comes from running your real situation.

If you're a first-time buyer mapping all this out, my home purchase page walks through the full path, and it's worth comparing a conventional loan against an FHA loan, since the program you choose changes your down payment and how far your ratios stretch.

Why your "how much can I afford" answer is better through a broker

A retail bank can only answer this question one way — through its own single rulebook. If its program caps your back-end ratio at 43% and your file needs 45%, the answer is no, and the loan officer can't tell you a competitor would say yes. Atlantis Mortgage is a wholesale brokerage. I take the same income, debts, and down payment and shop your file across more than 50 wholesale lenders — each with its own DTI flexibility, credit floors, and self-employed programs. They compete for your loan; I place it where it gives you the most home your situation honestly supports. After 28 years and more than $2 billion funded, I can usually tell you on the first call which programs fit. Licensed in Michigan, Florida, Texas, and California.

Affordability FAQ

What is the 28/36 rule?

It's a debt-to-income guideline. The 28 means your total monthly housing payment — principal, interest, property taxes, insurance, and any mortgage insurance — should stay near 28% of your gross monthly income. The 36 means all your monthly debts combined, housing included, should stay near 36%. It's a conservative starting point; many programs allow higher ratios with strong credit, a larger down payment, or healthy reserves.

How much income do I need to buy a house in Michigan?

There's no single threshold, because it depends on the home's price, your debts, your down payment, and local property taxes and insurance. As a rough illustration, a household earning around $90,000 can often support a home in the low-to-mid $300,000s, but a buyer with no other debt and a larger down payment can stretch further on the same income. The accurate answer comes from a pre-approval.

Does my car or student loan really lower how much house I can afford?

Yes, significantly. Because the back-end ratio caps your total monthly debts, every recurring payment reduces the room left for a mortgage. A few hundred dollars a month in car or loan payments can lower the home price you qualify for by tens of thousands of dollars, which is why paying off a small debt before buying can boost your affordability more than extra savings.

I'm self-employed — how is my affordability calculated?

A conventional lender qualifies you on the net income left after write-offs on your tax return, which often understates what you really earn. Bank-statement and other Non-QM programs instead qualify you on your actual deposits, which can substantially raise the income — and the home price — you qualify for. Atlantis Mortgage specializes in these programs, so a self-employed buyer's real affordability is often far higher than a standard calculator suggests.