Quarterly Tax Calculator
US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates.
| Endpoint | https://mcp.quarterlytax.al157.xyz/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 2 tools · grade A (99) · pin ts_a4c6cbb507ad1f765e4e0b32f849cb48 · protocol 2025-06-18 |
| First / last listed | 2026-11-06 00:18 UTC / 2026-11-06 00:18 UTC |
| Grade over time | 2026-11-06: A (99), 2 tools |
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Tools: estimateQuarterlyTax getPaymentCalendar
estimateQuarterlyTax | Estimate US federal + state quarterly estimated tax payments for a self-employed person. Given annual Schedule C net profit, filing status, two-letter US state code, tax year, and whether the §199A QBI deduction applies, returns annual federal income+SE tax, rough state income tax, SE tax, combined total, the per-quarter installment amount (4 equal payments), and a deep link that opens the site ca params: netProfit*, filingStatus*, state*, taxYear*, includeQBI |
getPaymentCalendar | Return the 4 federal quarterly estimated tax payment due dates for a tax year (Apr/Jun/Sep 15 and Jan 15 of the following year, rolled forward past weekends and IRS holidays to the real deadline), plus a deep link to the site. Read-only. params: taxYear* |
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