| What it does | 2026 paycheck estimates with line-by-line tax breakdowns for every state
| Free FIRE financial planner with Monte Carlo simulation and historical backtesting
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| Stage | Not given
| Established
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| Founded | Not given
| 2019
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| Based in | Not given
| Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Salary and hourly paycheck calculator for all 50 states plus DC
- Line-by-line tax breakdown with sources cited from IRS and state tables
- W-4 step-by-step configuration with credits and allowances
- Overtime, tips, bonuses, and pre-tax deduction inputs
- Local tax calculations for NYC, Yonkers, and Philadelphia
- Pay stub verification and comparison tools
- Comparison of job offers after tax
- Take-home pay map by state
- Guides on tax topics and paycheck literacy
- 43 published test cases verifying calculator accuracy
| - Monte Carlo simulation with up to 5,000 runs
- Historical backtesting against every market period since 1872
- US federal, state and payroll tax calculations for all 50 states
- Roth conversion ladder and RMD planning
- Six stress tests including market crash and job loss
- Three withdrawal strategies with 59.5 rule enforcement
- Support for 9 asset types with individual growth rates
- Month-by-month income and expense modeling with custom timelines
- Life event planning
- 9-currency support with auto-detection
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| What makes it different | - Cites specific IRS and state tax tables for every line, verified October 9, 2026
- Line-by-line breakdown shows exactly how each tax is calculated
- Handles complex scenarios including two jobs, W-4 Step 2, multiple employers, and local taxes
- Results can be shared without exposing personal data in the URL
- Clear guidance on limitations: estimates, not tax or payroll advice
| - Runs entirely in your browser with no account needed or data stored on servers
- Tests retirement against 154 years of historical market data since 1872
- Calculates exact tax liability for all 50 US states plus federal and payroll taxes
- Completely private with no data collection, selling or sharing
- Works offline on Android with full planner functionality
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ▼ −2 (down) since last check | 12 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 4 |
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| Citation Flow (Majestic) | 0 | 34 |
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| Referring domains (Majestic) | 0 | 127 |
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PaycheckZip.com
firenum™