IRS Mileage Rate and Per Diem is answering right now. Last checked 1 min ago. It exposes 5 tools. Last commit 3 Nov 2026.
IRS mileage rates 2011-2026 (76 cents from July 2026), GSA per diem by ZIP FY2026-27, high-low.
Uptime history
8 days of history
8 days agonow
100.0%
Uptime 24h
92 of 92 checks
5
Tools
read from the server
236 ms
Response time
average over 24h
0
Stars
last commit 3 Nov 2026
Nothing serious here today
Today is the operative word: we check IRS Mileage Rate and Per Diem every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.
run in your terminal
claude mcp add irs-mileage-rate-per-diem-mcp --transport http https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcpSettings → Connectors → Add custom connector, then paste this address
https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp~/.codex/config.toml
[mcp_servers.irs-mileage-rate-per-diem-mcp]
url = "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp".cursor/mcp.json
{
"mcpServers": {
"irs-mileage-rate-per-diem-mcp": {
"url": "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"irs-mileage-rate-per-diem-mcp": {
"type": "http",
"url": "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
}
}
}Available tools 5
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
calculate
calculate_mileage_deduction
Calculates the deduction or tax-free reimbursement for driven miles at the IRS standard mileage rates, splitting by the date each trip was driven. Applies the 2026 mid-year increase automatically (72.5 cents before July 1, 76 cents from July 1). Supports business, medical, charity and military moving miles, returns the amount per rate period and purpose, and the depreciation basis reduction for business miles. Notes who can and cannot deduct (employees' unreimbursed mileage is not deductible after the One, Big, Beautiful Bill Act).
calculate_trip_per_diem
Calculates the maximum federal per diem for a business trip: lodging for each night at that month's GSA rate (crossing seasons and the Oct. 1 fiscal year change), M&IE for each day with 75% on the first and last day, minus meals provided at the GSA breakdown amounts. Uses the official FY2026 and FY2027 GSA rates for trips between Oct. 1, 2025 and Sept. 30, 2027.
high
get_high_low_per_diem
Returns the IRS high-low substantiation method rates for a date and whether a city is a high-cost locality then: from Oct. 1, 2026 $329 high / $230 low with $86 / $74 treated as meals (Notice 2026-60); Oct. 1, 2025 - Sept. 30, 2026 $319 / $225 (Notice 2025-54). Also the transportation industry M&IE ($80 CONUS, $86 OCONUS) and the $5 incidental-expenses-only rate. Checks the 91 FY2027 high-cost localities and their seasonal portions (e.g. Tucson added, Panama City removed).
mileage
get_mileage_rate
Returns the official IRS standard mileage rates in cents per mile for business, medical, charity and military moving use, for a year or a specific date. Knows the mid-year 2026 change: 72.5 cents for business from Jan. 1 to June 30, 2026 (Notice 2026-10) and 76 cents from July 1, 2026 (Announcement 2026-11, fuel price increase), medical/moving 20.5 then 23.5 cents, charity 14 cents. Also returns the depreciation (basis reduction) part of the business rate (35 cents for 2026) and the FAVR / employer-vehicle maximum value ($61,700 for 2026). 2027 rates are not announced yet and the tool says so.
per
get_per_diem_rates
Returns the official GSA federal per diem rates for a U.S. (CONUS) destination by ZIP code or city/state: maximum lodging per night by month and the meals and incidental expenses (M&IE) rate with its breakfast/lunch/dinner/incidentals breakdown and the 75% first/last-day amount. Covers FY2026 (Oct. 1, 2025 - Sept. 30, 2026) and FY2027 (from Oct. 1, 2026; standard rate $113 lodging and $68 M&IE). Data from GSA's FY2026 and FY2027 ZIP code files, so it knows rates newer than a model's training data.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp | streamable-http | answering | 277 ms | 1 min ago |
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IRS Mileage Rate and Per Diem — questions
Answers built from our own checks of this server.
What can IRS Mileage Rate and Per Diem do?
It exposes 5 tools, read directly from the server on our last check. Among them: calculate_mileage_deduction, calculate_trip_per_diem, get_high_low_per_diem, get_mileage_rate, get_per_diem_rates. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
Is IRS Mileage Rate and Per Diem working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 236 ms. The bar chart above shows every period we have measured.
How do I connect IRS Mileage Rate and Per Diem?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does IRS Mileage Rate and Per Diem need an API key?
No. IRS Mileage Rate and Per Diem completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is IRS Mileage Rate and Per Diem?
It answers our handshake in 236 ms on average, which is faster than 57% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is IRS Mileage Rate and Per Diem open source?
The code is open source: it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev, which runs on its operator's own terms.