General Schedule (GS) Pay Calculator
Estimate your federal employee salary using GS grade, step, locality adjustment, and optional overtime. This tool gives a practical paycheck estimate for planning and comparison.
Estimated base annual pay (before locality): $0.00
Note: Base rates in this calculator are estimated for planning purposes. For official payroll decisions, verify rates and overtime rules with current OPM pay tables and agency guidance.
What is the General Schedule pay system?
The General Schedule (GS) pay scale is the most common salary system for U.S. federal civilian employees. Your pay is usually determined by grade (GS-1 through GS-15), step (1 through 10), and a locality pay adjustment based on where you work.
A GS pay calculator helps you quickly estimate annual salary, hourly equivalent, and per-paycheck earnings. If you are comparing job offers, preparing for promotion, or forecasting retirement contributions, this is one of the fastest ways to model your compensation.
How this GS pay calculator works
1) Grade and step
Your grade reflects job level and responsibility. Your step reflects progression within that grade. In this tool, selecting grade and step loads an estimated base annual salary.
2) Locality adjustment
Federal employees in higher-cost labor markets typically receive additional locality pay. The calculator multiplies base pay by:
Adjusted annual pay = Base pay × (1 + locality rate)
3) Overtime and deductions
If you enter overtime hours, the tool estimates overtime using a simple 1.5x hourly model. It also applies optional estimated deductions for TSP and taxes to produce a rough take-home estimate.
Quick example
Suppose you are GS-11 Step 4 in a locality area with 33.26% adjustment. You contribute 5% to TSP and estimate 22% tax withholding:
- Choose GS-11 and Step 4.
- Select the Washington area locality preset.
- Enter 5% TSP and 22% tax estimate.
- Click Calculate Pay to view annual, monthly, biweekly, and net estimate.
This gives a practical compensation snapshot you can use for budgeting, savings planning, and offer comparisons.
Why federal employees use GS pay calculators
- Compare salary impacts when moving between cities.
- Estimate increase from step raises or grade promotions.
- Forecast changes to biweekly checks with overtime.
- Model TSP contribution strategy before open season or life events.
- Create realistic monthly budgets based on projected take-home pay.
Important limitations
Every agency has payroll nuances. This calculator does not include all special pay rules such as special salary rates, law-enforcement premium structures, exact overtime caps, night differential, Sunday premium, health insurance, FEGLI, state taxes, or court-ordered deductions.
Use this as a planning tool, not a final payroll statement. Always confirm with official HR/payroll resources and the latest OPM guidance.
Frequently asked questions
Is locality pay included in overtime?
In many contexts, overtime calculations interact with adjusted rates and regulatory caps. This tool uses a simplified overtime estimate. For exact eligibility and rate method, check agency policy.
Can I use custom annual pay?
Yes. If your agency uses a special rate table or if you have an official number from HR, enter it in the custom base pay field to override the estimated GS table value.
Does this tool calculate net paycheck exactly?
No. It provides an estimate using percentage-based deductions. Real net pay depends on your tax filing profile, pre-tax benefits, healthcare elections, and other payroll items.
Final thoughts
A solid general schedule pay calculator can make your financial planning faster and clearer. Start with your grade, step, and locality, then pressure-test scenarios like promotions, relocations, and contribution changes. Even simple estimates can lead to smarter decisions over a full career.