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How many times my salary can I borrow for a mortgage?

Peter Warden
The Mortgage Reports editor

Salary is just one part of the mortgage equation

Many home buyers want to frame their budget in terms of their income.

It’s common to wonder how many times your salary you can borrow for a mortgage.

But mortgage lenders don’t think that way. And that’s because income is only one small part of the mortgage equation.

When all things are considered, like your debt, down payment, and mortgage rate, you might find you could borrow as much as 6 or 7 times your salary for a mortgage. Or your budget could be smaller.

The answer is different for everyone.

Verify your home buying eligibility (Aug 8th, 2020)

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3 things that determine how much mortgage you can afford

The amount you can borrow for a mortgage depends on how much a lender thinks you can pay back. And that equation isn’t just based on your salary; there’s a whole host of factors lenders consider.

These are the three main pillars mortgage lenders use when deciding how much to lend you:

  1. Creditworthiness — Do your credit score and report suggest you’re a responsible borrower who will prioritize mortgage payments?
  2. Down payment — The more money you put in, the less the lender stands to lose if the loan defaults
  3. Debt-to-income (DTI) ratio — When applying for a mortgage, your income is always viewed in the context of your debt burden

Each of these factors is roughly as important as the others. And each one will have a big impact on how much mortgage you can afford.

‘How much mortgage can I afford on my salary’ calculator

The only way to know for sure how much mortgage you can afford on your salary is by talking to a lender. They’ll look at every piece of your financial picture to calculate the exact amount you can borrow.

But if you’re still in the ‘researching’ phase, you can skip the phone call and get a good estimate of your budget by using a mortgage calculator.

This ‘by income’ mortgage calculator will estimate what you can afford based on your salary, down payment, existing debts.

If you want to better understand how each of those factors affects your max mortgage amount, read on.

Verify your home buying eligibility (Aug 8th, 2020)

How your income and debt affect your mortgage

Mortgage lenders don’t just want to know your salary. They want to know how much ‘discretionary’ income you have — the amount left over after your fixed expenses are taken care of.

That’s why income for mortgage qualifying is always viewed in the context of your “debt to income ratio” or DTI.

If you have any existing debt — like a car payment, student loans, or a credit card payment — lenders will subtract those costs from your monthy income before calculating how large a mortgage payment you qualify for.

The more debt you have, the less you’ll be approved to borrow for a mortgage.

Conversely, if you keep your debt low, you might be able to borrow as much as 6 times your salary for a mortgage. Here’s how.

>> Related: Learn how to calculate your debt-to-income ratio

Borrow up to 6 times your salary if you have no other debt

Take a look at two borrowers, whose profiles are identical except for their debt-to-income ratios.

  Borrower 1 (No Debt) Borrower 2 (High DTI)
Salary $100,000 $100,000
Down Payment $50,000 $50,000
Mortgage Rate (30-Year Fixed) 3.125% 3.125%
Monthly Debts (Pre-Mortgage) $0 (0% of income)  $1,000 (12% of income) 
DTI 36% 36%
Max Home Buying Budget* $668,000 $445,000

*Home buying budgets estimated using The Mortgage Reports’ mortgage calculator. Your own rate and budget will vary

In this scenario, Borrower One has been admirably prudent and has no ongoing debt.

Borrower Two, on the other hand, has a car payment and personal loan payment totaling $1,000 per month. This drastically affects how much they can borrow for a mortgage.

Note, both loans aim for a 36% DTI, which is typical for a conventional mortgage. However, many popular loans with a max DTI of 43% to 45%.

It’s even possible to buy a home with a DTI of close to 50%. But many mainstream lenders won’t approve such loans.

And remember, the higher your DTI, the higher your mortgage rate.

So it’s in your best interest to keep debts low — and even pay some off if possible — when you’re shopping for a mortgage.

Verify your home buying eligibility (Aug 8th, 2020)

Oops! A problem with having no debt

There’s one problem here. People who never borrow tend to have poor credit scores because they have “thin files.”

If you never or rarely borrow, you haven’t demonstrated that you’re a responsible borrower. This could make mortgage qualifying more difficult.

However, some lenders are willing to consider alternative forms of credit, like rent and utility payments, for those with thin files.

So if you find yourself in this situation, be sure to shop around carefully and look for a lender that can help you.

Mortgage rates affect how much you can borrow for a mortgage

You don’t have to be a math prodigy to work out that the less interest you have to pay on a loan, the more you can afford to borrow.

But let’s look at some examples in action. We’re making all the same assumptions we used in our earlier examples, except for your monthly inescapable expenses ($300) and the interest rates you qualify for.

All we’ve done is use our mortgage calculator to come up with the figures. And you can do that to match your own circumstances just as easily as we have.

Borrow up to 6 times your salary with a low mortgage rate

In the example above, we’re assuming you are offered a mortgage rate of 3.125%, which, nationwide, is a reasonable expectation for a highly creditworthy borrower at the time of writing.

But check out how the borrower’s budget changes as mortgage rates rise and fall:

Salary $100,000 $100,000 $100,000 $100,000
Down Payment $50,000 $50,000 $50,000 $50,000
Mortgage Rate (30-Year Fixed) 3.0% 3.5% 4% 4.5%
Estimated Home Buying Budget* $614,500 $581,000 $550,000 $521,700
Monthly Principal and Interest Payment $2,700  $2,700  $2,700  $2,700

*Home buying budgets estimated using The Mortgage Reports’ mortgage calculator. Calculation assumes the borrower has $300 in existing monthly debts

Assuming relatively low debts — $300 per month — and a 3.0% mortgage rate, this person might be able to borrow up to $564,000 for a mortgage. ($614K minus the $50K down payment).

That’s nearly six times their salary.

But suppose the borrower has credit issues, and only qualifies with a higher mortgage rate of 4.5%.

Suddenly, the maximum amount they can borrow on their salary drops to $471,000, or 4.7 times their salary. The higher mortgage rate has reduced their home buying budget by about $100K.

Luckily, rates are at historic lows right now, so buyers at every level are able to maximize their budgets.

Verify your home buying eligibility (Aug 8th, 2020)

Your down payment affects how much you can borrow for a mortgage

While having fun with our mortgage calculator, we thought we’d show you how big a difference your down payment makes to the value of the home you can afford.

We’re going back to the assumptions we used in our first example, and changing only the monthly inescapable expenses ($300 rather than $0) and the size of the down payment.

The salary ($100,000) and mortgage rate (3.125%) remain the same.

Borrow up to 8 times your salary with a big down payment

Let’s assume you can make a $160,000 down payment — maybe by using equity you’ve built up over many years in previous homes, or maybe because you’ve had a windfall of cash.

With such a hefty down payment, how many times your salary can you borrow for a mortgage?

  • Value of the home you can afford — $790,800
  • Monthly payment (for mortgage principal and interest) — $2,700

Again, your total monthly housing costs haven’t changed. But the value of the home you can afford is nudging $800K because you’re making a big down payment.

Borrow nearly 5 times your salary with a small down payment

Here’s how the same example looks with a more typical down payment of $20,000 (About 3.5% down in this case).

  • Value of the home you can afford — $532,000
  • Monthly payment (for mortgage principal and interest) — $2,700

Once again the monthly payments stay the same. But with a much smaller down payment, the home buying budget shrinks by about $250,000. (That said, $530K is a very respectable home buying budget.)

Your mortgage application doesn’t have to be perfect

Sure, you’ll have the biggest home buying budget if you have no other debts and a large salary.

But those things aren’t required. As a home buyer, it’s all about starting where you are now.

Figure out what makes sense for you based on your own salary and needs, rather than aiming for a budget based on a rule of thumb.

Many people find that when they approach it this way, home buying is more attainable than they ever thought possible.

Verify your new rate (Aug 8th, 2020)