Loan Qualify Calculator

“How much loan do I qualify for” is really two questions: what monthly payment will a lender allow, and what loan does that payment buy? The first comes from your income, your existing debts, and a cap. The second comes from the rate and the term. This calculator runs both steps for three loan types in one place: mortgage, auto, and personal, each under its own cap, so the same paycheck produces three honest answers instead of one number that pretends every loan is judged the same way.

The three-way comparison is the point of this page. A mortgage-only tool can go deeper on house prices, taxes, and insurance, and this page says so and links to it. What it cannot do is tell you, in one pass, that the same $6,000 income and $800 of debts supports about $267,547 of mortgage but only $19,962 of auto loan and $62,551 of personal loan. The caps and the terms differ, and the answers differ with them.

Quick Answer

The two steps behind every "how much do I qualify for"

The formula is short enough to check by hand, and checking it by hand is the fastest way to trust the tool. Step one caps the payment. Step two prices the loan.

In the worked example, step one for a mortgage is 43% of $6,000, which is $2,580, minus $800 of debts, leaving $1,780 a month. Step two converts $1,780 a month at 7% over 360 payments into $267,547 of loan. The conversion uses the standard amortization factor: the monthly rate divided by one minus the monthly rate factor raised to the negative number of payments. At 7% over 30 years that factor is about 0.00665 per dollar of loan per month, and $1,780 divided by 0.00665 is $267,547, subject to the tool's rounding to the nearest dollar.

Two definitions carry the whole calculation, and both come from the CFPB's debt-to-income explainer. Income is gross monthly income, before taxes and deductions, not take-home pay. Debts are the required monthly payments: minimums on cards, auto, student, and personal loans, plus child support or alimony. Utilities, groceries, phone bills, and subscriptions are real spending, but they are not debts in this ratio, and entering them as debts would understate what you qualify for.

Same paycheck, three very different answers

The table below runs the same $6,000 income and $800 of debts through all three presets. The rates and terms are the tool's typical values for each product, and changing the loan type in the tool resets them to these values, which you can then edit.

The mortgage number dwarfs the others because of the 30-year term, and the term effect is easy to isolate. Keep the same $1,780 payment and the same 7% rate, but shorten the term to 15 years, and the loan it buys falls to $198,036. At 20 years it is $229,589. At 30 years it is $267,547. Same payment, same rate, three loan sizes, differing only by how many months the payment runs. That is also why the mortgage decision deserves the most scrutiny: a long term buys a large loan, and it also means far more total interest over the life of the loan, which this tool deliberately does not total. For the full payoff schedule once you know the loan size, our amortization schedule calculator shows every payment.

One honest note about the auto row: the 20% figure is a payment-to-income guide, not a back-end DTI cap, yet the tool applies the same two steps to it, netting off the $800 of existing debts. Twenty percent of $6,000 is $1,200, minus $800 of debts, leaves $400. If your debts were zero, the same cap would allow $1,200 a month. The tool's auto answer is therefore conservative whenever existing debts are large, and that conservatism is visible in the result rather than hidden: the tool prints the $400 payment and the 20.0% DTI-with-loan figure next to each other so you can see exactly what was assumed.

Why the cap differs by loan type

The short answer is that lenders price security, lifespan, and purpose differently, and the caps encode those judgments. A mortgage is secured by a house, underwritten to federal standards, and repaid over decades, so its cap is the highest. An auto loan is also secured, but cars depreciate, so lenders watch the payment as a share of income closely, often around 15 to 20%, to keep the payment proportionate even as the collateral loses value. A personal loan is usually unsecured, so its cap sits lower than a mortgage cap but the rate sits higher, which is why $1,360 a month at 11% over 5 years buys only $62,551 while $1,780 a month at 7% over 30 years buys $267,547.

This correction matters for how to use the mortgage answer. Treat $267,547 as the loan that a 43% planning cap supports, not as an approval and not as a universal ceiling. If your lender uses a 50% back-end ceiling on a strong file, the same income and debts support more. If it applies a front-end housing cap, counts deferred student loans you omitted, or uses a higher qualifying rate, it supports less. The tool's job is to make the cap explicit so you can see which assumption moved the answer, and the next section shows how each lever moves it.

Four ways to qualify for more

Four levers move the answer, and they are not equal. They are ordered here by how quickly each one usually works, from fastest to slowest.

1. Pay down monthly debts. This is usually the fastest lever, because every dollar of monthly debt removed adds a dollar to the maximum new payment. On the worked example, cutting debts from $800 to $700 a month raises the mortgage payment room from $1,780 to $1,880 and the max loan from $267,547 to $282,578, a gain of $15,031 from $100 of monthly paydown. 2. Raise documented income. Raising gross income from $6,000 to $7,000 a month, with debts unchanged, raises the mortgage max loan from $267,547 to $332,180. Only stable, documented income counts in underwriting: salary, hourly wages with history, bonuses with a track record, and steady self-employment income. A brand-new side gig or a one-time windfall generally does not. 3. Get a lower rate. The score does not change the cap, but it changes the rate, and the rate changes what the capped payment buys. At 6% instead of 7%, the same $1,780 a month over 30 years buys $296,889 instead of $267,547, about 11% more loan from a one-point rate improvement. 4. Stretch the term. A longer term buys more loan from the same payment, as the 15, 20, and 30-year figures above show, but it is the most expensive lever in total interest, and it should be the last one reached for, not the first.

Two cautions apply to all four. First, the tool's headroom badge turns to "Tight" when the maximum new payment falls under $200 a month: on $3,000 of income with $1,200 of debts, the mortgage room is only $90 a month and the max loan only $13,528, which is a signal to pay debts down before applying, not a loan worth taking. Second, when debts already exceed the cap, the tool reports $0 and "No room for new debt": on $4,000 of income with $2,000 of debts, the current DTI is already 50.0%, above the 43% mortgage cap, so no new payment fits at all.

What loan qualification calculators get wrong

The common failures are visible once you know the two steps. Some tools ask for income and debts, then output a single loan number with no explanation of the cap, so users cannot tell a 43% mortgage answer from a 36% personal-loan answer. Others ignore debts entirely, quoting a payment from income alone that no lender would approve. And almost none show the headroom: the distance between your current DTI and the cap is the most actionable number in the whole calculation, because it tells you how much room a rate move or a new debt leaves you.

This page avoids those three failures, and its own limits deserve the same candour. It has no front-end housing cap, so the mortgage answer is a principal-and-interest loan size, not a home price: it includes no down payment, property tax, insurance, or HOA dues. For the deeper mortgage-only version, which turns the payment into a home price with those costs included, our mortgage affordability calculator is the right page, and this page is the three-loan comparison that sits beside it, not a replacement for it. It also totals no interest and prices no specific lender's overlay. If you want the mortgage-specific underwriting view with front-end and back-end DTI, our prequalify home loan calculator goes deeper on that single question. Once you know the loan size here, price its monthly cost with our mortgage payment calculator, and plan how fast you could clear it with our loan payoff time calculator, which turns any loan and payment into a calendar debt-free date.

Frequently asked questions

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