The 28% rule is the standard lenders use, but your actual comfort zone may be different

Most mortgage lenders will approve you for a loan where your monthly house payment — including property taxes, insurance, and mortgage interest — takes up no more than 28% of your gross monthly income. That is the income before taxes come out. So if you earn $5,000 a month before taxes, lenders typically cap your housing payment at around $1,400.

This 28% figure is not a law. It is a guideline that banks developed over decades to predict which borrowers are likely to pay them back. But it is also not the same as what you can actually afford to live on. A payment that passes a lender's test can still strain your budget if you have other debts, medical costs, or an unstable income.

The real question is not what a lender will approve, but what leaves you with enough money to cover everything else you need to pay for — and still have room for emergencies.

Key Takeaways

  • Lenders typically approve mortgages where your housing payment is 28% of your gross income, but this does not mean you can comfortably afford it.
  • Your actual affordable payment depends on your other debts, how stable your income is, and how much you have saved for emergencies.
  • A lower percentage — 20% to 25% of gross income — leaves more breathing room if your income drops or unexpected costs arise.
  • The 28% rule covers only your mortgage, property tax, and insurance; it does not account for utilities, maintenance, or homeowners association fees.

Why lenders use the 28% rule

Banks lend money based on statistics. They have looked at millions of mortgages and found that borrowers whose housing costs stay below 28% of gross income are less likely to stop paying. This threshold protects the lender, not you.

The 28% rule also assumes you have other income left over to cover everything else — car payments, credit cards, student loans, groceries, utilities, childcare, and medical bills. If you have significant other debts, 28% of your income going to housing leaves less cushion than the lender's math assumes.

What percentage actually works for your situation

Your comfortable housing payment depends on three things: how much other debt you carry, how stable your income is, and how much you have saved.

If you have no car payments, no credit card debt, and a steady salary, you may be able to handle 28% without strain. If you have student loans, a car payment, or work in an industry where hours vary, a lower percentage — 20% to 25% — is safer. If you are self-employed or work on commission, aim even lower, around 15% to 20%, because your income may fluctuate.

The size of your emergency fund also matters. If you have three to six months of expenses saved, you can take on a higher housing payment because you have a buffer if something goes wrong. If you have less than one month saved, a lower percentage gives you more room to build that safety net.

What the 28% rule actually covers

When lenders talk about your housing payment, they mean your mortgage principal and interest, plus property taxes, plus homeowners insurance. This is sometimes called your PITI payment.

What it does not include: utilities (electric, gas, water), maintenance and repairs, homeowners association fees if you have them, or the cost of replacing a roof or furnace down the road. These costs are real and they come out of your budget. A house that costs 28% of your income for the mortgage alone might cost 35% or 40% when you add everything else.

How to calculate what you can afford

Start with your gross monthly income — the number before taxes. Multiply it by 0.28 to find what lenders will approve. Then multiply it by 0.20 and 0.25 to see the lower range.

Next, add up all your other monthly debts: car loans, student loans, credit cards, childcare, insurance premiums. Subtract that total from your gross income. What is left is what you have for housing, utilities, food, and everything else. If that remaining amount is tight, your affordable housing payment is lower than what a lender would approve.

Finally, estimate your total housing costs, not just the mortgage payment. Call your local tax assessor's office or look at recent property tax bills in the neighborhood you are considering. Get a quote on homeowners insurance. Add those to your estimated mortgage payment. That is your real monthly housing cost.

When you can afford more than 28%

Some borrowers can comfortably pay more than 28% of their income toward housing. This usually happens when someone has very low other debts, a large emergency fund, and stable income that is unlikely to drop.

It can also happen in areas where housing costs are very high relative to local incomes. In some cities, most homeowners pay 30% to 35% of income toward housing because that is what the market requires. In those cases, people often make it work by having smaller car payments, lower credit card debt, or family help.

But paying more than 28% means less flexibility. If your income drops, you have less room to adjust. If a major repair comes up, you have less money to cover it without going into debt.

Red flags that a payment is too high

Even if a lender approves you, a payment may be too high if it leaves you unable to save for emergencies, if it forces you to carry credit card debt month to month, or if it means you cannot afford basic maintenance on the house.

Another warning sign: if you have to stretch the loan term to 30 years instead of 15 years just to make the payment fit, you are probably overextending. A longer loan means you pay far more interest over time, and it keeps you in debt longer.

Frequently Asked Questions

Can I afford a house payment that is 35% of my income?

Lenders may approve it, but it leaves little room for other expenses or emergencies. This works only if you have very low other debts, a large emergency fund, and income that is unlikely to drop. For most people, it creates financial stress.

Does the 28% rule include property taxes and insurance?

Yes. The 28% covers your mortgage payment plus property taxes plus homeowners insurance. It does not include utilities, maintenance, repairs, or HOA fees, which are separate costs that come out of your budget.

What if my income varies because I am self-employed?

Use your average income from the past two years, not your best year. Then aim for 15% to 20% of that average going to housing, not 28%, because your income may drop in slower months. This gives you a payment you can make even in lean times.

Should I buy the most expensive house a lender will approve?

No. Just because a lender approves you for a certain amount does not mean that payment fits your life. A lower payment leaves money for emergencies, maintenance, and the life you actually want to live outside of housing costs.

How do I know if I have saved enough for a down payment and emergency fund?

Most lenders want 3% to 20% down depending on the loan type. Beyond that, aim to have three to six months of all your expenses saved before you buy — not just your housing payment, but everything. This protects you if something goes wrong after you close.