What are the assumptions of the Salary formula?

2,080 working hours per year for full-time (does not account for paid time off, holidays, or unpaid leave). Tax estimates use a marginal rate bracket. Actual taxes depend on total household income and deductions. No pre-tax deductions (401k, HSA) when calculating gross. Add them to get more accurate net pay. Standard W-2 employment. 1099 contractors pay self-employment tax of 15.3% on top of income tax. Single filer for tax estimates. Married filing jointly or head of household changes brackets significantly.

What are the limitations of Salary?

Net pay depends heavily on filing status, state taxes, and pre-tax contributions. Contractor / 1099 work has different tax treatment (self-employment tax of 15.3%). For accurate take-home pay, use the specific IRS withholding estimator or your pay stub history. State income tax varies: 0% in TX, FL, WA; ~13% in CA. Our default uses a blended rate. Bonuses are typically withheld at 22% federal supplemental rate, not your marginal bracket. Stock-based compensation (RSUs, options) is taxed differently and at different times than base salary. Unpaid leave, sabbaticals, or partial-year work reduces the effective hourly rate significantly — adjust hours per year accordingly. Relocation packages, signing bonuses, and equity refreshers should be added to base comp for a true market comparison. Pay period frequency matters for budgeting: weekly paychecks feel different from monthly even with the same annual total — 26 vs 12 paychecks affects cash flow planning. For freelancers, the 30% rule of thumb (set aside 30% for taxes) is conservative; actual self-employment tax is 15.3% + income tax, often totaling 25-40% depending on bracket.

Methodology

How we calculate salary conversions

Our methodology for the Salary calculator: the formula, step-by-step calculation, authoritative sources, and limitations. Reviewed quarterly.

Formula

annual = hourly × hours_per_year

Step-by-step

1
Determine the work hours per year. Standard US full-time: 2,080 hours (40 hours × 52 weeks).
2
For hourly to annual: multiply the hourly rate by hours per year.
3
For annual to hourly: divide annual salary by hours per year.
4
For monthly: divide annual by 12 (or 24 for semi-monthly, 26 for biweekly).
5
For weekly: divide annual by 52.
6
For per paycheck: divide annual by number of pay periods (52 weekly, 26 biweekly, 24 semi-monthly, 12 monthly).
7
Apply the tax estimate to gross amounts to get net (take-home) pay.
8
Account for unpaid time off: 2,080 − (PTO days + holidays) × 8 = actual working hours per year.

Authoritative sources

Every claim on this page is backed by an authoritative source.

Assumptions

What we take to be true when applying this formula.

2,080 working hours per year for full-time (does not account for paid time off, holidays, or unpaid leave).
Tax estimates use a marginal rate bracket. Actual taxes depend on total household income and deductions.
No pre-tax deductions (401k, HSA) when calculating gross. Add them to get more accurate net pay.
Standard W-2 employment. 1099 contractors pay self-employment tax of 15.3% on top of income tax.
Single filer for tax estimates. Married filing jointly or head of household changes brackets significantly.

Limitations

What this method does NOT capture.

Net pay depends heavily on filing status, state taxes, and pre-tax contributions.
Contractor / 1099 work has different tax treatment (self-employment tax of 15.3%).
For accurate take-home pay, use the specific IRS withholding estimator or your pay stub history.
State income tax varies: 0% in TX, FL, WA; ~13% in CA. Our default uses a blended rate.
Bonuses are typically withheld at 22% federal supplemental rate, not your marginal bracket.
Stock-based compensation (RSUs, options) is taxed differently and at different times than base salary.
Unpaid leave, sabbaticals, or partial-year work reduces the effective hourly rate significantly — adjust hours per year accordingly.
Relocation packages, signing bonuses, and equity refreshers should be added to base comp for a true market comparison.
Pay period frequency matters for budgeting: weekly paychecks feel different from monthly even with the same annual total — 26 vs 12 paychecks affects cash flow planning.
For freelancers, the 30% rule of thumb (set aside 30% for taxes) is conservative; actual self-employment tax is 15.3% + income tax, often totaling 25-40% depending on bracket.

Editorial note

Reviewed against BLS labor statistics and IRS withholding guidance. Covers W-2 vs 1099, state tax variance, RSU/options, unpaid leave, and total compensation package nuance.

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Last reviewed: 2026-06-15 • Reviewed by: CalcxApp editorial team