US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates.
Maintain this server? Claim it
Call this server's tools from your browser. Nothing to install.
Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.
Tool list from our last check. Connect live to refresh it.
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 calculator pre-filled with these inputs. Read-only calculation; no data is stored.
Two-letter US state code, e.g. "CA".
Tax year for the federal rules applied.
Annual self-employment net profit in USD.
Federal filing status: single, mfj (married filing jointly), hoh (head of household).
Whether the §199A qualified business income deduction applies (default true).
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 calculator pre-filled with these inputs. Read-only calculation; no data is stored.
| Argument | Type | Description |
|---|---|---|
| state* | string | Two-letter US state code, e.g. "CA". |
| taxYear* | integer | Tax year for the federal rules applied. |
| netProfit* | number | Annual self-employment net profit in USD. |
| includeQBI | boolean | Whether the §199A qualified business income deduction applies (default true). |
| filingStatus* | string | Federal filing status: single, mfj (married filing jointly), hoh (head of household). |
{
"type": "object",
"required": [
"netProfit",
"filingStatus",
"state",
"taxYear"
],
"properties": {
"state": {
"type": "string",
"pattern": "^[A-Za-z]{2}$",
"description": "Two-letter US state code, e.g. \"CA\"."
},
"taxYear": {
"enum": [
2025,
2026
],
"type": "integer",
"description": "Tax year for the federal rules applied."
},
"netProfit": {
"type": "number",
"minimum": 0,
"description": "Annual self-employment net profit in USD."
},
"includeQBI": {
"type": "boolean",
"description": "Whether the §199A qualified business income deduction applies (default true)."
},
"filingStatus": {
"enum": [
"single",
"mfj",
"hoh"
],
"type": "string",
"description": "Federal filing status: single, mfj (married filing jointly), hoh (head of household)."
}
}
}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.
| Argument | Type | Description |
|---|---|---|
| taxYear* | integer | Tax year whose installment deadlines to return. |
{
"type": "object",
"required": [
"taxYear"
],
"properties": {
"taxYear": {
"enum": [
2025,
2026
],
"type": "integer",
"description": "Tax year whose installment deadlines to return."
}
}
}