| What it does | Independent calculator to check if a home battery pays for itself in your situation
| 2026 paycheck estimates with line-by-line tax breakdowns for every state
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| Stage | Not given
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| Founded | Not given
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| Based in | NL
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| Pricing model | Free
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| Pricing | Not given
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| Key features | - Compares battery models from 23 brands on payback time and net result after 15 years
- Calculates with real hourly EPEX prices for dynamic energy contracts
- Processes the end of net metering from 1 January 2027
- Provides negative buying advice if purchase is not worthwhile
- No account or email required
- Generates 10-page PDF advice report with lowest prices from 11 shops
- Free 22-page PDF handbook about home batteries
- Analyzes consumption and solar generation hour by hour for full year
- Three scenarios: pessimistic, most likely and optimistic outcomes
- Updates prices from 11 online shops every morning automatically
| - 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
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| What makes it different | - Truly independent: sells no batteries, has no arrangements with installers, publishes negative buying advice
- No personal data collection: zero signup required, immediate results without email
- Built from personal need: creator did his own calculations after a misleading sales pitch
- Comprehensive research: 384 example households analyzed in 26,112 calculations
- Shows all calculation assumptions: transparent methodology with public data sources
| - 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
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 15 ▼ −1 (down) since last check | Not checked yet ▼ −2 (down) since last check |
| Trust Flow (Majestic) | 18 | 0 |
| Citation Flow (Majestic) | 24 | 0 |
| Referring domains (Majestic) | 18 | 0 |