Your gross monthly income is the total amount you earn in a month before any taxes, retirement contributions, insurance premiums, or other deductions come out. It is the full figure on your paycheck stub, not the smaller amount that lands in your bank account. To calculate it, take your pay and convert it to a monthly figure using the formula that matches how often you’re paid.
That single number decides more than most people realize. Lenders use it to size your mortgage. Courts use it to set support obligations. Bankruptcy trustees use it to decide whether you qualify for Chapter 7. Getting it right, and knowing which version of “income” is being asked for, is the whole game.
Gross Pay vs. Net Pay
Gross monthly income includes the portions of your paycheck earmarked for federal income tax, Social Security, and Medicare, measured before those withholdings are removed. Net pay, sometimes called take-home pay, is what remains after mandatory tax withholdings and voluntary deductions like 401(k) contributions or health insurance premiums.
Lenders, courts, and government agencies focus on the pre-deduction total because it reflects your complete earning capacity regardless of the tax elections or benefit plans you’ve chosen. Court-ordered wage garnishments, union dues, and voluntary benefit deductions do not lower your gross income either. Gross income is always calculated before those amounts come out.
How to Calculate Gross Monthly Income by Pay Schedule
The math depends on how often you’re paid, because months are not all the same length and some pay schedules produce an extra check in certain months.
Salaried
Divide your gross annual salary by 12. A $72,000 salary produces $6,000 per month.
Weekly
Multiply your gross weekly paycheck by 52, then divide by 12. A $1,200 weekly check works out to $5,200 per month ($1,200 × 52 ÷ 12).
Bi-Weekly (Every Two Weeks)
Multiply your gross paycheck by 26, then divide by 12. This accounts for the two months each year when you receive three paychecks instead of two. Simply doubling one check would understate your annual earnings.
Semi-Monthly (Twice a Month on Set Dates)
Multiply your gross check by 2. Because you receive exactly 24 paychecks a year, two checks already represent one full month.
Variable or Seasonal
When your income fluctuates because of commissions, freelance work, or seasonal employment, lenders typically average your earnings over at least two years of income history, though 12 to 24 months may be acceptable if other financial factors are strong.1Fannie Mae. General Income Information If the trend is stable or rising, the lender averages it. If it’s declining, the lender may reduce the figure or disqualify that income entirely.
Calculating Gross Monthly Income If You’re Self-Employed
Self-employed income is more involved because you have to account for business expenses. On IRS Schedule C, your gross income starts with gross receipts, subtracts the cost of goods sold and returns, and then adds any other business income to arrive at the gross income figure on Line 7.2Internal Revenue Service. Schedule C (Form 1040) – Profit or Loss From Business From there, business expenses come off to reach your net profit.
When lenders evaluate you for a mortgage, they don’t stop at net profit. They add back certain non-cash deductions, primarily depreciation, depletion, and amortization, because those expenses reduce taxable income on paper without actually reducing the cash you have to make loan payments.3Fannie Mae. Cash Flow Analysis (Form 1084) The same add-back approach applies to farming income on Schedule F and to partnership or S corporation income on Schedule K-1.
What Counts as Gross Income
Federal tax law defines gross income broadly as all income from whatever source, unless a specific law excludes it.4Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined For most people, wages or salary make up the largest share, but many other income streams count too:
- Bonuses, commissions, and other performance-based pay
- Tips, both cash and non-cash, reported to your employer
- Overtime pay
- Investment income, including dividends, interest, and capital gains
- Rental income from property you own
- Royalties from intellectual property or natural resources
- Net business income from a sole proprietorship or partnership
Regular pension payments and distributions from a 401(k), traditional IRA, or annuity generally count as gross income. The IRS treats periodic pension and annuity payments much like wages for withholding purposes, and any distribution from a traditional IRA is presumed to be part of gross income.5Internal Revenue Service. Pensions and Annuity Withholding Qualifying distributions from a Roth IRA are generally not included.
Some government benefits count as well. Social Security Disability Insurance (SSDI) may be partially taxable: if half your SSDI benefits plus all your other income exceeds $25,000 for a single filer or $32,000 for a married couple filing jointly, part of those benefits becomes taxable.6Internal Revenue Service. Regular and Disability Benefits Unemployment compensation is fully included and reported on Form 1099-G.7Internal Revenue Service. Topic No. 418, Unemployment Compensation
What Does Not Count
Several categories are specifically excluded by federal law. Leaving them out prevents you from overstating your income on a tax return or on a financial disclosure.
- Gifts, bequests, and inheritances, though any income the inherited property later generates (rent, interest) is taxable.8Office of the Law Revision Counsel. 26 USC 102 – Gifts and Inheritances
- Workers’ compensation benefits for personal injury or sickness.9Office of the Law Revision Counsel. 26 USC 104 – Compensation for Injuries or Sickness
- Life insurance proceeds paid because the insured person died, although interest earned on those proceeds is taxable.10Internal Revenue Service. Life Insurance and Disability Insurance Proceeds
- Supplemental Security Income (SSI), which is needs-based and not taxable.
- Public assistance such as Temporary Assistance for Needy Families.
- Child support received on behalf of a child.
Alimony is a split rule. If your divorce or separation agreement was executed after December 31, 2018, alimony you receive is not included in your gross income, and the paying spouse cannot deduct it. For agreements finalized on or before that date, the old rules still apply: the recipient reports it as income and the payer deducts it.11Internal Revenue Service. Topic No. 452, Alimony and Separate Maintenance Getting this wrong on a loan application or court filing can shift reported income by thousands of dollars.
Gross Income vs. Adjusted Gross Income
Adjusted gross income (AGI) is your total gross income minus specific deductions listed on Schedule 1 of Form 1040, including deductible IRA contributions, student loan interest, self-employment tax, and health savings account contributions.12Internal Revenue Service. Definition of Adjusted Gross Income AGI is calculated before you take the standard or itemized deduction.
When a lender or court asks for gross monthly income, they usually want the larger, pre-adjustment figure. When the IRS or a government benefit program asks for AGI, they want the smaller one. Confirm which is being requested before you submit the number.
Why the Number Matters
Lenders use your gross monthly income to calculate your debt-to-income ratio (DTI), which compares your total monthly debt payments, including the proposed new loan, to your gross monthly income. Lower DTI signals room to take on more debt. Under the federal Ability-to-Repay rule, mortgage lenders must consider your current or expected income, employment, existing debts (including alimony and child support), and DTI when deciding whether to approve a loan.13Federal Register. Ability-to-Repay and Qualified Mortgage Standards Under the Truth in Lending Act (Regulation Z)
Verification is standard. Lenders ask for recent pay stubs, W-2s from the past two years, 1099s for freelance or contract work, and complete tax returns. Self-employed borrowers may also need profit-and-loss statements and business bank records. Many lenders use IRS Form 4506-C to pull your tax transcripts directly through an authorized intermediary, so any gap between what you claim and what you filed shows up quickly.14Internal Revenue Service. Form 4506-C IVES Request for Transcript of Tax Return
In Chapter 7 bankruptcy, gross monthly income drives the means test. On Official Form 122A-1, you report your “current monthly income” by averaging what you received during the six full calendar months before your filing date.15United States Courts. Chapter 7 Statement of Your Current Monthly Income Official Form 122A-1 If that figure falls at or below the median income for a household of your size in your state, there’s no presumption of abuse and you can proceed. Above the median, a more detailed calculation on Form 122A-2 decides whether you still qualify or should file Chapter 13 instead.16U.S. Department of Justice. U.S. Trustee Program – Means Testing
Misreporting the number is expensive. Knowingly making a false statement on an application to a federally insured financial institution, the FHA, the SBA, or a mortgage lending business can bring a fine of up to $1,000,000, up to 30 years in prison, or both.17Office of the Law Revision Counsel. 18 USC 1014 – Loan and Credit Applications Generally In bankruptcy or family court, an incomplete or inaccurate income picture can lead to sanctions, denial of your petition, or a finding of fraud that blocks future discharge.