Take-home figuresLocal install
Tax Calc
A quick US federal income tax estimate from one number.
Free. No paid tier, no key.
What you get
Two offers, federal tax
Before state tax and FICA
| Offer | After federal tax |
|---|---|
| 95,000 | 82,651.00 |
| 140,000 | 117,333.00 |
| Difference a year | 34,682 |
Type a gross annual income and get an estimate of US federal income tax for a single filer with the standard deduction. You see taxable income, the tax, the effective rate and what's left after tax. It's a planning estimate, not a tax return.
Made for US freelancers, US job seekers comparing offers, US single filers planning a budget
3 requests, start to finish
Example chats. Each one uses real tools of this server, named as they run. The people and firms are made up.
Tax Calc is free. Pro on the other 49 paid servers: $39 once. Free vs Pro
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Example 1 · Jordan Ellis, software tester in Columbus, Ohio, single filerCompare two job offers
I have offers at $95,000 and $140,000. Estimate federal income tax and take-home for each.us_federal_taxEstimates tax on $95,000: taxable $79,250, tax $12,349.00, 13.0%us_federal_taxEstimates tax on $140,000: taxable $124,250, tax $22,667.00, 16.2%
After federal income tax: $82,651.00 against $117,333.00. The higher offer keeps $34,682 more per year before state tax and FICA.
Saves about 10 min (our estimate)
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Example 2 · Maya Thompson, freelance copywriter in Denver, ColoradoSet aside for quarterly payments
I expect about $62,000 this year. Roughly how much federal income tax is that?us_federal_taxEstimates tax on $62,000 after the $15,750 standard deduction
Taxable income $46,250, estimated federal tax $5,311.50, effective rate 8.6%. Maya plans about $1,330 per quarter for income tax and adds self-employment tax separately.
Saves about 8 min (our estimate)
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Example 3 · Luis Ortega, new graduate starting at $48,000 in San Antonio, TexasCheck a budget on a first salary
My salary is $48,000. What does federal income tax leave me with?us_federal_taxEstimates tax on $48,000
Taxable income $32,250, estimated tax $3,631.50, effective rate 7.6%, $44,368.50 after federal income tax.
Saves about 5 min (our estimate)
Free, every tool
Limits read from the code: servers/tax-calc/src/index.js (no license code) + https://mcp.zovo.one/s/tax-calc
Install
Works with Claude, Cursor, VS Code and other MCP clients. This server runs on your machine.
npm @theluckystrike/mcp-tax-calc
Download the .mcpb bundle and open it. Claude Desktop installs it in one click.
Download tax-calc.mcpbAdd this to your MCP client config (Claude Desktop, Cursor, VS Code). Needs Node.js.
{
"mcpServers": {
"tax-calc": {
"command": "npx",
"args": [
"-y",
"@theluckystrike/mcp-tax-calc"
]
}
}
} One command in your terminal.
claude mcp add tax-calc -- npx -y @theluckystrike/mcp-tax-calc
All tools (1)
| Tool | What it does |
|---|---|
us_federal_tax | Estimates US federal income tax for a single filer from gross income |
Questions
Which filers does it cover?
Is it accurate enough to file?
Does it work for the UK, EU or Poland?
More in Calculators
Tax Calc is free