Quarterly Tax Calculator

io.github.al157Published by GitHub account al157v1.0.0Updated Oct 24, 2026

US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates.

The publisher's own server: Calculator Tools MCP

VerifiedStreamable HTTPWeb executableFinance

Overview

AI-generated overview

A remote MCP server that gives an assistant US federal and state quarterly estimated tax estimates, self-employment tax, and payment due dates.

What you can do
It provides US federal and state quarterly estimated tax estimates, self-employment tax figures, and quarterly payment due dates. The manifest lists no tools, so the exact operations are not documented; the registry description is the only stated capability. It runs as a hosted remote endpoint rather than a local package.
When to use it
Useful when an assistant needs to help with US quarterly estimated tax planning, such as estimating what is owed or checking when a quarterly payment is due. It is a fit for freelancers, self-employed users, and others who make estimated payments.
Requirements
A remote MCP client that supports streamable HTTP, connecting to the provider's hosted endpoint. No packages, environment variables, headers, or authentication are declared, so no credentials appear to be needed.
Before you install
The server is hosted by a third party, so any figures or personal details sent to it leave the user's machine. No tools, authentication, or data-handling details are documented, and tax estimates are informational rather than professional tax advice.

Installation

In SourceWeft

  1. Open Quarterly Tax Calculator in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.al157%2Fquarterlytax-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "quarterly-tax-calculator": {
      "type": "http",
      "url": "https://mcp.quarterlytax.al157.xyz/mcp"
    }
  }
}

README

This repository has no README.

Tools

2

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 calculator pre-filled with these inputs. Read-only calculation; no data is stored.

ParametersstaterequiredtaxYearrequirednetProfitrequiredincludeQBIfilingStatusrequired

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.

ParameterstaxYearrequired

Version history

1
  1. v1.0.0LatestOct 15, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

Other Calculator integrations

Calculator Tools MCP

tools.calculatorOfficial publisher

A remote MCP endpoint that lets an assistant publish a live calculator, tracker, tool, or game from Cursor, Claude, or ChatGPT.

Streamable HTTPWeb executable
Productivity & WorkflowNot indexed yetOct 25, 2026

Free IFTA Calculator

dev.pages.ifta-calculatorOfficial publisher

Read-only helper that answers US/Canadian IFTA fuel-tax questions and estimates quarterly tax from miles and gallons per jurisdiction.

Streamable HTTPWeb executable
Location & Lifestyle1 toolOct 29, 2026

Zovo Tip Pool Calculator

Published by GitHub account theluckystrike

Remote calculator that splits pooled tips among restaurant, bar, cafe or salon staff and computes server tip-outs to support staff.

Streamable HTTPWeb executable
Productivity & Workflow2 toolsNov 8, 2026

Zovo PTO Accrual Calculator

Published by GitHub account theluckystrike

A remote MCP server that calculates employee PTO, vacation and sick leave balances from an accrual policy, for one person or a whole team.

Streamable HTTPWeb executable
Productivity & Workflow2 toolsNov 8, 2026

Zovo Cap Table Calculator

Published by GitHub account theluckystrike

Remote MCP server that computes startup cap tables and SAFE ownership, letting an assistant model dilution across SAFEs, convertible notes and priced rounds.

Streamable HTTPWeb executable
Finance2 toolsNov 8, 2026