Sergio Davis · Mortgage Loan Officer · NMLS# 2805755
Reviewed September 18, 2026 · General education; guidelines and lender requirements can change.
A big overtime week can make buying a home feel closer. The useful question is how much of that income a lender can document and use consistently. Your hourly wage, the amount deposited into your account, and mortgage qualifying income are three different numbers.
This guide is written with union electricians and other skilled trades in mind. It uses selected Fannie Mae conventional-loan rules as an example, not a promise that every lender or mortgage program uses the same method. A lender can impose additional requirements.
Start by separating the parts of your paycheck
Make a simple list of base wages, overtime, and any other pay categories on your stub. Ask payroll for help if a label is unclear. Do not assume every line on a union wage sheet is take-home pay or qualifying income. An employer contribution toward benefits is different from cash wages paid to you.
Under Fannie Mae’s current base-income guidance, a salary or hourly pay with guaranteed minimum hours can be treated differently from hourly earnings that fluctuate. Variable base income generally requires a 12-month history and a supported calculation. A high hourly rate does not, by itself, establish full-time earnings throughout the year. Source: Fannie Mae, Base Income.
Can overtime count?
Potentially. Fannie Mae recommends two years of overtime history, but may accept at least 12 months with positive factors supporting the shorter history. The lender reviews documentation and compares year-to-date earnings with prior earnings. Stable or rising income is generally averaged; declining income needs evidence of stabilization before it can be used. These are underwriting rules, not an automatic approval formula. Source: Fannie Mae, Overtime Income.
Why your biggest check can be misleading
Imagine an electrician whose overtime jumps during a short shutdown or a major deadline. Multiplying that one week by an entire year creates a picture of earnings that may never actually occur. The opposite mistake is assuming that all overtime must be ignored. The right response is to examine the documented history.
For a planning exercise, write down the months with the most overtime and the months with the least. Add a note explaining any unusual project, time away, or change in schedule. This is context for your loan officer, not a substitute for payroll records or the lender’s calculation.
Prepare a useful income folder
- Recent pay stubs with year-to-date earnings.
- W-2s from each relevant contractor for the last two years, as a starting preparation set.
- A list of employer names and employment dates that matches those records.
- A short explanation of changes in hours or extended gaps.
- Payroll or employment-verification contacts when requested.
The exact documentation depends on the loan and the lender. Keep complete records rather than selecting only your best checks. Submit sensitive documents through the secure application process when requested, not through a public comment, social message, or ordinary website inquiry.
Qualifying and feeling comfortable are separate decisions
Even if overtime is usable, consider whether you want your household budget to depend on earning it. Try writing two monthly budgets: one using your ordinary take-home earnings and another with a more conservative allowance for extra hours. Include housing, utilities, commuting, debts, savings, and the expenses you do not want to give up.
This is my planning suggestion, not a lender requirement. Its purpose is to show whether buying the home leaves room for the life you want outside work. If the budget only works during your busiest stretch, a lower payment target or more time saving may be worth discussing.
What if you recently received a raise?
Tell your loan officer whether the raise affects your base rate, guaranteed hours, or overtime. Bring the effective date and supporting payroll information. Different income categories can produce different calculations, so ask for a fresh review rather than multiplying a new wage by your busiest schedule.
Before shopping seriously, ask for a breakdown of the income used, the remaining conditions, and what changes you should report during the loan process. That gives you a clearer starting point than an online estimate based on a single paycheck.
These examples are educational, not a rate quote, pre-approval, tax advice, or commitment to lend. Loan and property eligibility require an individual review.