# IRS Mileage Rate and Per Diem (remote · irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev)

IRS mileage rates 2011-2026 (76 cents from July 2026), GSA per diem by ZIP FY2026-27, high-low.

- Trust score: 66/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev`: 66/100 (this document), [markdown](https://verifymcp.io/servers/theluckystrike-irs-mileage-rate-per-diem-mcp/irs-mileage-rate-per-diem-mcp.md), [page](https://verifymcp.io/servers/theluckystrike-irs-mileage-rate-per-diem-mcp/irs-mileage-rate-per-diem-mcp)

## Channel facts

- Endpoint: `https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1069 tokens (~213/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 7/100
  - Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the IRS Mileage Rate and Per Diem MCP server?

IRS Mileage Rate and Per Diem is a hosted endpoint at https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http theluckystrike-irs-mileage-rate-per-diem-mcp 'https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "theluckystrike-irs-mileage-rate-per-diem-mcp": {
      "url": "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "theluckystrike-irs-mileage-rate-per-diem-mcp": {
      "type": "http",
      "url": "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.theluckystrike-irs-mileage-rate-per-diem-mcp]
url = "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "theluckystrike-irs-mileage-rate-per-diem-mcp": {
      "type": "remote",
      "url": "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add theluckystrike-irs-mileage-rate-per-diem-mcp --url 'https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  theluckystrike-irs-mileage-rate-per-diem-mcp:
    url: "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "theluckystrike-irs-mileage-rate-per-diem-mcp": {
      "Transport": "http",
      "Url": "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add theluckystrike-irs-mileage-rate-per-diem-mcp -t streamable-http -u 'https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "theluckystrike-irs-mileage-rate-per-diem-mcp": {
      "type": "http",
      "url": "https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 66, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-11-03 (score 65)

First indexed and scored.

## MCP tools (5)

### `get_mileage_rate` (~222 tokens)

IRS standard mileage rates (2011-2026, incl. the July 2026 increase)

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.

Input parameters:

- `date` (string): A date the miles were driven; returns the rate in force that day (YYYY-MM-DD).
- `year` (integer): Tax year, e.g. 2026. Default 2026.

### `calculate_mileage_deduction` (~156 tokens)

Mileage deduction or reimbursement calculator

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).

Input parameters:

- `default_purpose` (string): Purpose for trips that do not set one. Default business.
- `trips` (array, required): Trips or mileage totals, each with a date.

### `get_per_diem_rates` (~269 tokens)

GSA per diem rates by ZIP or city (FY2026 and FY2027)

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.

Input parameters:

- `city` (string): City or county name, e.g. "Boston" or "Maricopa".
- `date` (string): Travel date; picks the fiscal year and shows that night's lodging rate (YYYY-MM-DD).
- `fiscal_year` (integer): Federal fiscal year (2027 = Oct. 2026 - Sept. 2027). Default: the current one.
- `state` (string): 2-letter state code, e.g. MA.
- `zip` (string): 5-digit ZIP code of the destination (best match).

### `calculate_trip_per_diem` (~222 tokens)

Trip per diem calculator (GSA rates)

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.

Input parameters:

- `city` (string): City or county name, e.g. "Boston" or "Maricopa".
- `end_date` (string, required): Last travel day (YYYY-MM-DD).
- `meals_provided` (object): Number of meals provided (by a conference or the employer) to deduct from M&IE.
- `start_date` (string, required): First travel day (YYYY-MM-DD).
- `state` (string): 2-letter state code, e.g. MA.
- `zip` (string): 5-digit ZIP code of the destination (best match).

### `get_high_low_per_diem` (~200 tokens)

IRS high-low per diem rates and high-cost localities

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).

Input parameters:

- `city` (string): City or county to test against the high-cost list.
- `date` (string): Travel date. Default today (YYYY-MM-DD).
- `state` (string): 2-letter state code or state name.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/theluckystrike-irs-mileage-rate-per-diem-mcp/irs-mileage-rate-per-diem-mcp#diagnostics

## Score history

- 2026-11-05: 66
- 2026-11-04: 66
- 2026-11-03: 65

## Common questions

### What is the IRS Mileage Rate and Per Diem MCP server?

IRS Mileage Rate and Per Diem is an MCP server listed in the public MCP registry as io.github.theluckystrike/irs-mileage-rate-per-diem-mcp. IRS mileage rates 2011-2026 (76 cents from July 2026), GSA per diem by ZIP FY2026-27, high-low. This page covers its hosted endpoint (https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp).

### Is the IRS Mileage Rate and Per Diem MCP server safe to use?

IRS Mileage Rate and Per Diem scores 66 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the IRS Mileage Rate and Per Diem MCP server expose?

IRS Mileage Rate and Per Diem exposes 5 tools: get_mileage_rate, calculate_mileage_deduction, get_per_diem_rates, calculate_trip_per_diem, get_high_low_per_diem. Their descriptions and schemas cost roughly 1,069 tokens of context every time the server is loaded.

### Does the IRS Mileage Rate and Per Diem MCP server require authentication?

No. We connected to IRS Mileage Rate and Per Diem without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the IRS Mileage Rate and Per Diem MCP server still maintained?

IRS Mileage Rate and Per Diem is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp
- Repository: https://github.com/theluckystrike/irs-mileage-rate-per-diem-mcp
- Website: https://taxbreakcalc.com/self-employed-set-aside-calculator/
- Changelog RSS feed: https://verifymcp.io/servers/theluckystrike-irs-mileage-rate-per-diem-mcp/irs-mileage-rate-per-diem-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/theluckystrike-irs-mileage-rate-per-diem-mcp/irs-mileage-rate-per-diem-mcp.json
- HTML version of this page: https://verifymcp.io/servers/theluckystrike-irs-mileage-rate-per-diem-mcp/irs-mileage-rate-per-diem-mcp