How a Mortgage Underwriter Calculates a Homebuyer’s Income (in Plain English) - The Mortgage Hub (2024)

Calculating your income is a fairly simple exercise… unless you’re applying for a mortgage.

That’s because, for Conventional and FHA loans, Fannie Mae (FNMA) and Freddie Mac’s (FMCC) guidelines determine income calculations and required documentation.

Even the income calculations for Jumbo loans are generally based on a more conservative version of FNMA and FMCC’s guidelines.

And these guidelines are complex. They set out dozens of rules about what counts as income, how to calculate different types of income, and when certain types of documentation are required. But understanding how mortgage underwriters calculate your income before you apply for a loan will make for a far smoother home-buying process.

You’ll know what you can afford right away so you can spend less time searching for a house and more time finding a place to call home.

To get you in your dream home as quickly as possible, we’ll first provide an overview of how mortgage underwriters calculate your income. Then we’ll run through specific types of income, how these different types of income are calculated, and what documentation you’ll need for each.

The Underwriter’s Income Calculation Overview

Whether you own a corporation, run a sole proprietorship, or draw income from full-time or part-time employment, lenders want to make sure that you can make consistent, on-time monthly payments.

To verify that you can afford your payments, a mortgage underwriter will calculate your monthly income based on a conservative analysis of your last two years of documented income. It’s worth noting that, for certain types of income in certain situations, you’ll only need one year of documentation.

Ultimately, though, the calculation depends on how you make money. Different rules apply to income from overtime, bonuses, part-time employment, corporate distributions, and other types of income.

In the next section, we’ll run through the documentation and calculation rules used for the most common types of income.

Wage Earner’s Income

Salaried Employees: If you draw a salary, you’re in luck—you have the simplest income calculation. An underwriter will calculate your income by taking your current yearly salary and breaking it down to a per-month basis. You will need to provide your most recent pay stub and IRS W-2 forms covering your most recent two-year period of employment. If there are any gaps in your employment, you will need to explain them.

Hourly Employees: To calculate the income of an employee paid on an hourly basis, underwriters use the average number of hours worked per pay period and multiply it by the hourly rate. Based on that number, they will arrive at a monthly income amount.

It’s important to note that the hourly income used to qualify should be equal to or greater than the average year-to-date income. In other words, the income you’ve earned in the current year so far must not be declining from the income showing on your past two years of W-2s.

Overtime and Bonuses: Generally, underwriters will take the income you earned from bonuses or overtime in the past two years and average it out. If the amount earned from overtime or bonuses is declining, the lender will require an explanation and will use the most conservative calculation to determine your monthly income.

The Self-Employed Earner’s Income

Sole Proprietor: FNMA and FMCC use automated underwriting systems (AUS) to determine whether sole proprietor’s need one or two year’s worth of tax returns. Depending on the AUS’s determination, a sole proprietor’s income is based on his or her past one or two years of adjusted gross income as shown on IRS – Schedule C.

If the sole proprietor’s income is declining, the underwriter will use the most conservative calculation. However, if the sole proprietor’s income is consistent or increasing, they’ll use the two-year average.

Corporations & LLC’s: If you own an LLC or S corporation, you usually have a combination of W-2 income and corporate distributions via a K-1. Underwriters calculate these two types of income differently. The W-2 income is calculated based on the prior year’s W-2, while the number of years required for the distribution income is determined by the AUS.

If you own a C corporation, the calculation is similar except that you’ll report distributions on a 1099-DIV rather than a K-1.

NOTE: Fannie Mae and Freddie Mac provide two different automated underwriting systems. Fannie Mae’s version is called the Desktop Underwriter which is often abbreviated to DU and Freddie Mac’s system is called the Loan Prospector, abbreviated to LP.

These are automated systems that loan originators use to evaluate your risk as a borrower. Read our post on Fannie and Freddie’s automated underwriting systems for an in-depth look at how the LP and the DU work and why they’re important.

Other Common Types of Income

Social Security/Disability Income: Generally, a portion of your Social Security and/or disability income will be non-taxable. Since non-taxable income puts more money in your pocket, underwriters will gross up Social Security and disability income by 15 to 25 percent, depending on the loan program.

So, for example, if you receive $1000 per month in Social Security, that’s the equivalent of making between $1150 (at the low end) and $1250 per month (at the high end) in W-2 income form the underwriter’s perspective. To determine your income from Social Security or disability, your lender will need the Social Security award letter.

Retirement income/Pension: To verify retirement or pension income, FNMA requires you to provide one of the following:

  • Letters from the organizations providing the income
  • Copies of retirement award letters
  • Copies of signed federal income tax returns
  • IRS W-2 or 1099 forms, or
  • Proof of current receipt

You’ll generally need to show at least two months of receipt, though exceptions can be made (with the proper documentation) if you’ve recently retired and income has just started. As long as you meet the documentation requirements, retirement income will be added to your income calculation.

Rental Income: For your rental income to qualify, you have to have reported it on Schedule E of your latest tax return, unless you acquired the property after the most recent filing date. Keep in mind that calculating gross rental income is more complicated than simply adding up the monthly rent you’re charging tenants.

In fact, determining rental income requires a specific calculation that accounts for expense write-offs. If you need to calculate your rental income, we recommend reading this post on the rental income calculation.

Other, less common types of income that may qualify for your income calculation include:

  • Alimony or Child Support
  • Automobile Allowance
  • Boarder Income
  • Capital Gains Income
  • Disability Income — Long-Term
  • Foreign Income
  • Foster-Care Income
  • Housing or Parsonage Income
  • Interest and Dividends Income
  • Notes Receivable Income
  • Public Assistance Income
  • Royalty Payment Income
  • Temporary Leave Income
  • Tip Income
  • Trust Income
  • Unemployment Benefits Income
  • VA Benefits Income

Questions About Calculating Your Income?

With so many rules, exceptions to those rules, and dense tax forms to sort through, figuring out what income counts and what doesn’t can be overwhelming.

Call now at (888) 273-8734 or Schedule a Consultation to discuss how we can help.

How a Mortgage Underwriter Calculates a Homebuyer’s Income (in Plain English) - The Mortgage Hub (2024)

FAQs

How a Mortgage Underwriter Calculates a Homebuyer’s Income (in Plain English) - The Mortgage Hub? ›

An underwriter will calculate your income by taking your current yearly salary and breaking it down to a per-month basis. You will need to provide your most recent pay stub and IRS W-2 forms covering your most recent two-year period of employment. If there are any gaps in your employment, you will need to explain them.

How do mortgage underwriters calculate income? ›

Calculating the qualifying income for a salaried employed is fairly straightforward. Take the gross annual salary amount and divided it by 12 months. There are loan programs where a salaried employ can close on a home loan before actually starting with the new employer.

How do mortgage underwriters verify income? ›

To improve the chances for approval, you need to prepare pay stubs for the last two to three months, W2 forms and tax returns for the previous two years, profit and loss statements, and bank statements. They do this to check if your income stated matches the income reported.

How do they determine income for mortgage? ›

Many mortgage lenders rely on a debt-to-income (DTI) calculation to assess your ability to pay for a loan. This calculation compares your monthly gross income, typically from the income sources above, to your monthly debt load. Debt sources may include: Monthly minimum credit card payments.

Do mortgage underwriters use gross or net income? ›

While there are several programs out there that allow lenders to use your gross income to qualify you for a mortgage, generally speaking, most lenders will use your net income (or income after business expenses are deducted). Why?

How does a lender evaluate income for underwriting? ›

Your underwriter must verify you earn enough income to cover your monthly mortgage payments. To confirm your financial readiness, you must provide three types of documents to verify your income: W-2s from the last 2 years, your two most recent bank statements and your two most recent pay stubs.

How do you calculate underwriting income? ›

Underwriting income is calculated as the difference between an insurance company's earned premiums and its expenses and claims. For example, if an insurer collects $50 million in insurance premiums over a year, and spends $40 million in insurance claims and associated expenses, its underwriting income is $10 million.

What is verifiable income for a mortgage? ›

Generally, the borrower submits the following documents for income verification. W-2 forms. Bank statements. Tax returns for the last two years. Payslips for the last two or three months.

How does Figure verify income? ›

We use connected accounts to verify your income and set up your loan for disbursem*nt. At minimum, you need to connect at least one checking account. If you opt in to Autopay, the same account will be used for your monthly payment.

How is income verified for a loan? ›

Lenders require income verification because they don't want to approve a loan you can't afford. Modern technology allows lenders to verify income from many employers electronically. If you receive your income in cash, you should be able to prove it with bank statements or tax returns.

How much income is needed for a $400,000 mortgage? ›

To afford a $400,000 home, assuming a 20% down payment and a 6.5% interest rate on a 30-year mortgage, you would need a gross monthly income of approximately $7,786.55. This assumes you have $1,000 in monthly debt.

How much income do I need for a $500,000 mortgage? ›

In today's climate, the income required to purchase a $500,000 home varies greatly based on personal finances, down payment amount, and interest rate. However, assuming a market rate of 7% and a 10% down payment, your household income would need to be about $128,000 to afford a $500,000 home.

How much income do I need for a 200K mortgage? ›

So, by tripling the $15,600 annual total, you'll find that you'd need to earn at least $46,800 a year to afford the monthly payments on a $200,000 home. This estimate however, does not include the 20 percent down payment you would need: On a $200K home, that's $40,000 that needs to be paid in full, upfront.

What income do banks look at when buying a house? ›

Gross income is the sum of all your wages, salaries, interest payments and other earnings before deductions such as taxes. While your net income accounts for your taxes and other deductions, your gross income does not. Lenders look at your gross income when determining how much of a monthly payment you can afford.

What is the formula for mortgage underwriting? ›

Key Takeaways

To calculate a back-end ratio, divide total monthly debt expenses by gross monthly income and divide by 100. Mortgage underwriters use back-end ratios to help assess a borrower's risk. Lenders usually require long-term debt and housing expenses equate to less than 33% to 36% of a borrower's gross income.

Do mortgage lenders use gross income or adjusted gross income? ›

Mortgage lenders typically use your net income (after deducting business expenses) to calculate your taxable income. They will determine if you have enough income to qualify for a mortgage by averaging your net income over 1-2 years based on your tax returns.

How do you calculate mortgage loan based on income? ›

Using a percentage of your income can help determine how much house you can afford. For example, the 28/36 rule may help you decide how much to spend on a home. The rule states that your mortgage should be no more than 28 percent of your total monthly gross income and no more than 36 percent of your total debt.

How do underwriters calculate commission income? ›

To calculate commission income for a mortgage, lenders average your commissions over the past two years to arrive at an estimated monthly income. For home buyers with a steady two-year history of earning commissions, the income calculation for a mortgage is simple.

What income do you need for a 200k mortgage? ›

What income is required for a 200k mortgage? To be approved for a $200,000 mortgage with a minimum down payment of 3.5 percent, you will need an approximate income of $62,000 annually.

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