About Shafqat
I build free, formula-verified salary and tax calculators for workers, freelancers, and anyone trying to understand their pay. Every calculator on this site is cross-checked against primary government sources before it goes live. IRS Publication 15 for federal withholding tables, the Social Security Administration for the annual FICA wage base, the Department of Labor for FLSA overtime thresholds, and the Bureau of Labor Statistics for wage benchmarks. Every source is linked directly on the calculator page so you can verify the numbers yourself.
The problem I kept running into with existing salary calculators: they produced a result with no formula, used stale tax rates, gave wrong answers for edge cases like part-time hours, bonus supplemental wages, or self-employment income, and showed no methodology. AnnualPayCalculator.com exists to fix that. Every calculator here is completely free, requires no registration, uses verified 2026 IRS and SSA rates, and shows its full working.
How Formulas Are Verified
Before any calculator is published, the core formula is verified against at least two independent primary government sources and tested against three established calculators. For the federal income tax calculation: the 2026 tax brackets and standard deduction figures are confirmed against IRS Revenue Procedure 2025-28 and IRS Publication 15-T, then the output is compared against the IRS Tax Withholding Estimator, SmartAsset, and PaycheckCity at five different salary levels. Any discrepancy above 1% triggers a full formula review before publication.
FICA calculations follow the same process. The 6.2% Social Security rate and $184,500 annual wage base are confirmed against the SSA Cost-of-Living Adjustment announcement and IRS Publication 15. The 1.45% Medicare rate and 0.9% Additional Medicare Tax threshold are sourced directly from IRS Publication 15 (Circular E).
The complete verification process is documented on the methodology page.
Editorial Standards
- Answer first. Every page answers the user's question in the first sentence. No preamble, no definition of what a salary calculator is.
- Show the formula. Every calculator displays the exact formula in plain text alongside the IRS publication, SSA document, or DOL regulation it comes from.
- Real worked examples. Examples use specific non-round numbers. A $53,400 annual salary at 38.5 hours per week, not a round $50,000 at 40 hours.
- What people get wrong. Every calculator page includes a section covering the most common mistakes for that specific calculation.
- Primary source links. Every factual claim that can be verified links directly to the primary government source, not a news article or summary page.
- Annual rate updates. Every page carries a Last updated date that moves forward when the IRS, SSA, or DOL publishes new rates.
- Cross-checked output. Every calculator is tested against a minimum of three established independent calculators at five different input combinations before publication.
- No AI filler. Content is written and reviewed manually. No paragraphs that restate the question, use round numbers in every example, or repeat the same sentence structure on every page.
What This Site Covers
Fourteen specialised pay and tax calculators including annual salary, take-home pay, federal income tax, hourly to annual conversion, salary to hourly, annual to monthly, pay raise, overtime pay, self-employment tax, biweekly pay, bonus tax, 401k, salary increase, and paycheck budget. Plus in-depth guides covering federal tax brackets 2026, average American wages, minimum wage by state, gross vs net pay, FICA tax, W-4 withholding, salary vs hourly, how to calculate annual salary, states with no income tax, how to negotiate salary, and more.
Areas of Expertise
Payroll Calculation
Federal and state withholding, FICA, pay period conversions, biweekly vs semi-monthly mechanics, overtime under FLSA, bonus supplemental wage tax.
US Federal Tax Law
IRS Publication 15 application, 2026 federal income tax brackets, standard deductions, marginal vs effective rates, AMT screening, W-4 withholding mechanics.
Salary Data and Analysis
BLS wage statistics, median household income, income percentile benchmarking, wage growth trends, state and industry salary comparisons.
Self-Employment Tax
Schedule SE calculation, 15.3% SE tax rate, deductible SE tax, quarterly estimated payments, 1099 income planning, freelance rate conversion.
Calculator Development
M.S. and B.S. Computer Science. Formula verification systems, cross-calculator accuracy testing, static web performance, zero-dependency calculator architecture.
Financial Education
Plain-language explanations of tax concepts, FLSA rules, pay period mechanics, and FICA. Written for workers and freelancers, not accountants.
Formula Errors and Feedback
If a calculator produces a result that does not match your paycheck, payroll software, or IRS figures, I want to know. Formula errors are corrected the same day they are reported. Use the contact page and include your input values, the result you received, and the source you are comparing against.
All messages are read personally. Calculation questions and general feedback are responded to within two business days. The methodology page explains the full verification process if you want to understand how formulas are built and tested before publication.