Use take-home pay for the household spending budget. Your salary or hourly wage is the starting point, but taxes and other deductions stand between it and the deposit.
The pay stub shows where that difference went: a retirement contribution is money you still own, and an insurance deduction pays for coverage you have.
Read the stub from top to bottom
A simplified example for one pay period:
| Pay-stub item | Amount |
|---|---|
| Gross earnings | $2,500 |
| Tax withholding and payroll taxes | −$500 |
| Health and other benefit deductions | −$150 |
| Employee retirement contribution | −$125 |
| Net pay | $1,725 |
Check gross earnings first. For hourly work, compare paid hours and rate with your records. For salaried work, check the pay period and any changes. Identify overtime, bonuses, reimbursements, or corrections so a one-off item does not become your normal-income assumption.
Then separate taxes, insurance, retirement, and other deductions. For payroll taxes, the IRS lists the employee share as 6.2% for Social Security and 1.45% for Medicare; Social Security tax stops once your wages for the year pass an annual wage base, so check the current year’s limit if you earn near it.
Some deductions are pre-tax and some are not, which can change taxable wages without changing the headline salary. A traditional 401(k) deferral, for example, isn’t subject to income tax withholding at the time of deferral but still counts as wages for Social Security and Medicare taxes. Designated Roth contributions come out after tax.
Do not count saving twice
If $125 goes into retirement before the deposit, that is already an employee contribution. A budget using $1,725 net pay should not subtract the same $125 again. If you also save from the deposit, give that transfer its own budget line.
Employer contributions, if offered, are different from the employee amount deducted from your pay. Your own deferrals are always 100% vested, but a 401(k) can make employer money vest over time: under the IRS’s example schedules, cliff vesting gives you nothing until year three and then 100%, while graded vesting adds 20% a year from year two until it reaches 100% in year six. Check your plan’s schedule before counting the match as yours.
Pay frequency changes the monthly calculation
Twice-monthly pay usually means 24 payments per year. Every-other-week pay usually means 26, though a particular payroll year can differ. Weekly pay usually means 52. Check your employer’s actual calendar.
At $1,725 net every other week, 26 payments total $44,850. Dividing by 12 gives average monthly net pay of $3,737.50.
But a normal two-paycheck month brings $3,450. The $287.50 gap between the average and a normal month comes from two extra $1,725 paychecks that land in just two months of the year.
You can budget using the normal month’s deposits and give extra-paycheck months a separate purpose, or use a buffer to smooth the annual average. Either approach needs an actual cash calendar.
Withholding is a prepayment on the tax bill
Income-tax withholding is money paid toward the eventual liability. Too much can mean a larger refund; too little can mean a bill or penalties.
The IRS Tax Withholding Estimator estimates how much your employer or pension provider should withhold. Have recent pay stubs, your spouse’s stubs if you file jointly, and your latest federal return ready. The estimator can produce a pre-filled Form W-4 to give your employer. The IRS suggests checking every January and after a new job, an income change, marriage or divorce, a birth or adoption, or a home purchase.
Do not change withholding only to manufacture a bigger paycheck without checking the tax consequences.
Compare benefit costs when reviewing the deposit
A health premium taken from pay buys coverage, and a plan with a lower deduction can cost more over a year if its deductible, provider network, or out-of-pocket costs are worse for you.
The Department of Labor recommends obtaining benefit documents, including the Summary of Benefits and Coverage for health insurance.
If a deduction is unfamiliar, ask payroll or benefits staff what it is, why it changed, and how to correct an error.
Build a normal-paycheck number
Choose recent ordinary stubs rather than the largest deposit of the year. For variable hours, use the irregular-income guide instead of treating one good week as permanent.
Write down net pay per check, expected deposit dates, and any known changes, then build next month’s bill schedule around those dates.
Sources checked October 5, 2026. All worked examples are illustrative, not survey estimates. General financial education, not individualized financial advice.
