| What it does | 2026 paycheck estimates with line-by-line tax breakdowns for every state
| Free Amazon FBA calculators and seller tools with verified 2026 fee rates
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
| CN
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free core tools with no signup. Pro plan: $29.99/month or $299/year (save 17%). One-time fee audit service: $299 for up to 50 SKUs, $4 per extra SKU.
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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
| - FBA Profit Calculator with all hidden fees
- PPC Analyzer for ACOS and ROAS calculation
- Fee Simulator comparing fulfillment methods
- Listing Grader with optimization tips
- Review Analyzer for competitive insights
- Inventory Optimizer with restock alerts
- Cost Tracker for expense management
- Real-time exchange rate conversion updated every 5 minutes
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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
| - 50+ free tools with no signup, login or credit card required
- Fee rates verified monthly with open-source data published under CC BY 4.0
- Built by an 8-year Amazon FBA seller addressing real seller pain points
- Supports multiple marketplaces: Amazon US/EU/UK/JP/CA/AU, Temu, TikTok Shop, and Etsy
- Transparent formulas using industry-standard calculations verifiable by users
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | Not checked yet ▼ −2 (down) since last check | 23 ● no change since last check |
| Trust Flow (Majestic) | 0 | 0 |
| Citation Flow (Majestic) | 0 | 16 |
| Referring domains (Majestic) | 0 | 10 |