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? ›

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.

How do mortgage underwriters verify income? ›

How Do Lenders Verify Income?
  1. Paycheck stubs for the past 30 days.
  2. Two years of W-2 forms.
  3. Two months of checking and savings account statements.
  4. Copy of your driver's license.

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.

What is the formula for mortgage underwriting? ›

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.

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.

Do underwriters check your bank account? ›

Your loan officer will ask for all types of bank statements, including checking and savings accounts. The money you have saved will determine the amount of mortgage you can afford. If your underwriter requires you to make a 10% down payment, you can apply for a mortgage worth $300,000 only if you have saved $30,000.

What do you usually show for no income verification mortgages? ›

You do not need tax returns or tax transcripts to qualify. Lenders can use 12 or 24-month bank statements. Businesses can show 12-24 months of P&L statements. You can get a no-income verification mortgage with as little as 10% down.

Do underwriters use gross or net income? ›

Lenders don't look at your gross income or revenue — the amount you bring in before expenses and other deductions. They also don't use your adjusted gross income on your tax return. Instead, they look at your net business income — the amount you bring in after you subtract relevant business expenses.

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

You can use many different income sources to qualify for a mortgage, including: Employment income: Base pay or wages, bonuses, commissions, overtime payments and self-employment income. Schedule K-1: Income and/or distributions from partnerships, S corporations and estates.

Are home loans based on gross or net income? ›

Mortgage lenders often look at gross monthly income to determine how much mortgage you can afford, but it's also important to consider your net income, as well.

What not to do during underwriting? ›

Underwriters look in depth at the home you're buying and your personal financial situation. To help improve your chances of getting a loan, don't take out any new credit, change jobs, or miss any bill payments during the underwriting process.

How do underwriters calculate? ›

The underwriter will also make specific calculations to determine the borrower's financial ability to make the loan payments by reviewing the borrower's employment history, paystubs, and income, and comparing that to the borrower's amount of outstanding debt.

How often do loans get denied in underwriting? ›

How often does an underwriter deny a loan? A mortgage underwriter typically denies about 1 in 10 mortgage loan applications. A mortgage loan application can be denied for many reasons, including a borrower's low credit score, recent employment change or high debt-to-income ratio.

Can you use household income when applying for a mortgage? ›

This is true no matter how long you've been together and even if you share all of the same accounts and loans. If you want to use your spouse's income to qualify for the loan, you'll also have to use your spouse's credit, for better or for worse.

What do underwriters look for on tax returns? ›

To find out your monthly qualifying income underwriters look at: Your income stability (income is steady, dropping, or rising) over the last two years. Debt-to-income ratio: To ensure that you have enough income each month to pay for your home loan without it affecting your other monthly debts.

What habit lowers your credit score? ›

Actions that can lower your credit score include late or missed payments, high credit utilization, too many applications for credit and more. Experian, TransUnion and Equifax now offer all U.S. consumers free weekly credit reports through AnnualCreditReport.com.

How do underwriters verify paystubs? ›

How Do Lenders Verify Paystubs? Lenders often require mortgage borrowers or other loan applicants to supply two recent paystubs to verify their income. Some lenders review the paystubs manually, with one or more reviewers studying the documents and calling employers to verify their legitimacy.

Do underwriters verify pay stubs? ›

Mortgage lenders usually verify income and employment by contacting a borrower's employer directly and reviewing recent employment and income documentation. These documents can include an employment verification letter, recent pay stubs, W-2s, or anything else to prove an employment history and confirm income.

What do underwriters look for on pay stubs? ›

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.

Do mortgage lenders verify income with IRS? ›

The IRS Income Verification Express Service (IVES) lets you authorize banks and lenders to access your tax records when you apply for a mortgage or loan. The IRS only provides tax records to a third party with the consent of the taxpayer.

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