How Much Can Your Mortgage Payment Be — What Lenders Will Allow

What determines how much you can borrow for a mortgage

Your mortgage payment is limited by your income, your debts, and the rules lenders use to decide how much they will let you borrow. The most common rule is the debt-to-income ratio, which compares all your monthly debt payments to your gross monthly income. Most lenders will not approve a mortgage if your total monthly debts — including the new mortgage payment, car loans, credit cards, student loans, and other obligations — exceed 43 percent of your gross income. Some lenders will go up to 50 percent if you have excellent credit and savings, but 43 percent is the standard.

A second limit is how much the property itself is worth. A lender will not lend you more than the home's appraised value, and most require you to put down a percentage of the purchase price yourself — usually 3 to 20 percent depending on the loan type. The combination of these two limits — what you can afford based on income, and what the house is actually worth — sets your real ceiling.

Your credit score, down payment size, employment history, and existing savings also matter. A higher credit score and larger down payment lower the lender's risk, so they may approve a higher payment. A spotty work history or very little savings in the bank can make lenders tighten their rules even if your income is strong.

Key Takeaways

• Most lenders use a 43 percent debt-to-income ratio, meaning your total monthly debts cannot exceed 43 percent of your gross monthly income.
• Your mortgage payment is also limited by the home's appraised value and how much you can put down as a down payment.
• A lender will calculate your maximum payment by running both the income test and the property value test, then use whichever limit is lower.
• Your credit score, down payment size, and savings affect whether a lender will approve you at the maximum allowed or require a lower payment.
• Pre-approval from a lender shows you the actual payment range you may have access to for, not just a theoretical maximum.

How lenders calculate your maximum payment using the 43 percent rule

To find your maximum payment under the debt-to-income rule, take your gross monthly income and multiply it by 0.43. That is the total amount you can spend on all debts each month. Subtract what you already pay on car loans, credit cards, student loans, and other debts. What remains is the maximum you can put toward a mortgage payment, property taxes, homeowners insurance, and mortgage insurance if required.

Example: You earn $5,000 gross per month. Forty-three percent of that is $2,150. You already pay $300 per month on a car loan and $150 on student loans. That leaves $1,700 available for your mortgage payment and related costs. If property taxes and insurance will run $400 per month, your actual mortgage payment can be no more than $1,300.

This calculation is what a lender runs when you apply. They will ask for recent pay stubs, tax returns, and a list of all your debts to verify the numbers. If your income varies — you are self-employed or work on commission — lenders typically average your income over the past two years.

How the property value limits your payment

A lender will not lend more than the home's appraised value. If you want to buy a $300,000 house and put down 10 percent ($30,000), the lender will finance $270,000. The maximum loan amount, combined with current interest rates, sets a ceiling on your monthly payment regardless of your income.

If your income would theoretically allow a $2,000 monthly payment but the house you want only supports a $1,500 payment based on its value and your down payment, the $1,500 limit applies. Conversely, if you have excellent income but cannot save a large down payment, the property value limit may prevent you from buying as expensive a home as your income would otherwise allow.

Down payment size directly affects this limit. A larger down payment means you borrow less, which lowers your monthly payment. If you can increase your down payment from 5 percent to 10 percent, your monthly payment drops even if nothing else changes.

Credit score and other factors that tighten or loosen the rules

A credit score above 740 typically qualifies you for the best interest rates and the most lenient debt-to-income rules. Scores between 680 and 740 still may have access to for conventional loans but at higher rates. Scores below 680 may require a larger down payment, a lower debt-to-income ratio, or both.

Lenders also look at your savings and employment history. If you have six months of mortgage payments saved in the bank, lenders view you as lower risk and may approve a higher payment. If you changed jobs recently or have gaps in employment, they may require a lower payment or ask for more documentation. Self-employed borrowers often face stricter rules because their income is less predictable.

The type of loan matters too. FHA loans allow up to 50 percent debt-to-income ratio but require mortgage insurance. Conventional loans typically cap out at 43 percent but do not require insurance if you put down 20 percent. VA loans for military members sometimes allow higher ratios. The loan type you choose changes what payment you can afford.

What pre-approval tells you about your actual payment limit

Pre-approval is a lender's written statement of how much they will lend you based on your income, debts, credit, and savings. It is not a may provide, but it is much more reliable than a rough calculation. A pre-approval letter will state a maximum loan amount and often a maximum purchase price. From that, you can work backward to find your actual monthly payment.

Pre-approval requires you to submit pay stubs, tax returns, bank statements, and a list of debts. The lender pulls your credit report and verifies your employment. This process takes a few days to a week. Once you have pre-approval, you know the real ceiling — not what you might theoretically afford, but what this lender will actually lend you.

Pre-approval is also valuable when you make an offer on a house. Sellers take offers more seriously when you have pre-approval because they know you can actually get financing. Without it, your offer is contingent on finding a lender willing to work with you.

How to lower your payment if the maximum is too high

If the lender's maximum payment is more than you are comfortable paying, or if you want to buy a more expensive house, you have several options. The most direct is to increase your down payment. Putting down 15 percent instead of 10 percent lowers your loan amount and your monthly payment immediately.

You can also pay down existing debts before applying. If you eliminate a $200 car payment, that $200 becomes available for your mortgage payment under the debt-to-income rule. Paying off credit card balances works the same way — it frees up room in your debt ratio.

Increasing your income also raises your maximum payment, though this is not something you can do quickly. If you are self-employed or on commission, showing higher income over two years of tax returns can improve your approval. Some lenders will count a spouse's income if you are married, or a co-borrower's income if you have a co-signer.

Finally, waiting to apply can help if your credit score is low or you have recent negative marks. Paying bills on time for six to twelve months improves your score and may may have access to you for better rates and higher approval amounts.

What happens if you exceed your maximum payment

If you try to buy a house with a payment above what lenders will approve, you will not get financing. No lender will close a loan that violates their debt-to-income rules or exceeds the property's appraised value. You will either need to find a less expensive house, increase your down payment, or wait until your financial situation improves.

Some people attempt to hide debts or overstate income to get approved for a higher payment. This is mortgage fraud and is a federal crime. Lenders verify income with employers and the IRS, and they pull credit reports that show all your debts. Dishonesty will be caught during underwriting, and the loan will be denied — or worse, you could face criminal charges.

If you are denied for a mortgage, you have the right to know why. Ask the lender for a written explanation. It may be fixable — paying down a debt, improving your credit score, or saving a larger down payment — or it may mean waiting until your circumstances change.

Frequently Asked Questions

Can I get approved for a higher payment if I have a co-signer?

Yes. A co-signer's income counts toward your debt-to-income ratio, which can raise your maximum payment. The co-signer is legally responsible for the loan if you do not pay, so lenders treat their income and debts as part of the application. Both of your credit scores and debt histories matter.

Does my mortgage payment include property taxes and insurance?

Yes. When lenders calculate your maximum payment, they include property taxes, homeowners insurance, and mortgage insurance (if required) in the debt-to-income calculation. These costs vary by location and home price, so the lender estimates them based on the property and down payment. The total of all four — principal, interest, taxes, and insurance — is what counts against your income.

What if I get a raise after I am pre-approved?

A raise does not automatically increase your pre-approval amount. Pre-approval is based on your income at the time you apply. If you want to increase your approved amount, you can ask the lender to re-run the numbers with your new income, but you will need to provide recent pay stubs or an offer letter showing the raise. This usually takes a few days.

Can I be approved for a payment higher than 43 percent of my income?

Some lenders will go up to 50 percent if you have excellent credit, significant savings, and low existing debts. FHA loans sometimes allow higher ratios. However, 43 percent is the standard for conventional loans, and going higher increases your risk of missing payments if your income drops or unexpected expenses arise.

What if the house I want costs more than what I am approved for?

You have three options: find a less expensive house, increase your down payment to lower the loan amount, or improve your financial situation before applying again. Increasing your down payment by even 5 percent can lower your monthly payment enough to fit within your approval. Alternatively, you could wait six months to a year while paying down debts or building savings.