Mileage Tracker

Organization

openaccountant

mileage-tracker

Track business mileage and calculate IRS standard mileage deduction.

Overview

Publisher	openaccountant
Repository	`skills`
Skill name	`mileage-tracker`
Stars	106
Forks	18
Bundled files	Instructions only
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by openaccountant on GitHub. Read the source before you install it.

Installation

Install the Mileage Tracker AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/openaccountant/skills/tree/main/shared/mileage-tracker
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/openaccountant/skills.git /tmp/skills
mkdir -p .claude/skills
cp -r /tmp/skills/shared/mileage-tracker .claude/skills/mileage-tracker

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Mileage Tracker in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Mileage Tracker on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Mileage Tracker is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Business Mileage Tracker

Overview

Tracks business miles driven and calculates the IRS mileage deduction. Cross-references fuel, toll, and parking transactions to validate driving activity. You must choose between the standard mileage rate and actual vehicle expenses for each vehicle -- you cannot use both methods for the same vehicle in the same year.

Wilson Tools Used

transaction_search — Find gas station, toll, and parking transactions to cross-reference against mileage logs
export_transactions — Export vehicle-related expenses for recordkeeping

Workflow

Ask for the total business miles driven (Wilson cannot track odometer readings directly).
Multiply business miles by the current IRS standard mileage rate: $0.70/mile for 2025 (verify the current year rate at irs.gov).
Use transaction_search to find transactions matching gas stations, toll charges, and parking fees.
Cross-reference driving-related transactions against the mileage log dates to validate consistency.
Calculate the deduction: business_miles x rate_per_mile.
Report the deduction amount for Schedule C, Line 9 (Car and truck expenses).

Standard Mileage Rate vs. Actual Expenses

Method	What You Deduct	When to Use
Standard mileage	Miles x IRS rate	Simpler; usually better for fuel-efficient or low-cost vehicles
Actual expenses	Gas, insurance, repairs, depreciation, registration, lease payments x business-use %	Better for expensive vehicles with high operating costs

You must choose one method per vehicle per year. If you use standard mileage in the first year a vehicle is placed in service, you can switch to actual expenses later. If you start with actual expenses, you cannot switch to standard mileage for that vehicle.

Required Mileage Log Fields

The IRS requires contemporaneous records. Each entry should include:

Date of the trip
Starting location and destination
Business purpose of the trip
Miles driven
Odometer reading (start and end, at minimum annually)

Without Wilson

Create a spreadsheet with columns: Date, From, To, Purpose, Miles.
Log every business trip as it happens (the IRS does not accept reconstructed logs).
At year end, sum the Miles column.
Multiply total business miles by the current IRS rate (e.g., 1,000 miles x $0.70 = $700).
Alternatively, total all actual vehicle expenses and multiply by your business-use percentage (business miles / total miles driven).
Enter the deduction on Schedule C, Line 9.
Keep the mileage log and supporting receipts for at least 3 years from the filing date.

Important Notes

The $0.70/mile rate is for 2025. The IRS adjusts this rate annually, sometimes mid-year. Always verify the current rate before filing.
Commuting miles (home to regular office) are never deductible. Trips from a home office to a client site are deductible.
If you use the standard mileage rate, you can still deduct parking fees and tolls separately on top of the mileage deduction.
For vehicles used both personally and for business, only the business-use percentage is deductible.
This is not tax advice. Consult a CPA or tax professional for filing decisions.

Frequently asked questions

What does the Mileage Tracker AI skill do?

Track business mileage and calculate IRS standard mileage deduction.

Why use Mileage Tracker on TypingMind?

Because you install it once and use it with any model. Mileage Tracker is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Mileage Tracker in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/openaccountant/skills/tree/main/shared/mileage-tracker. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Mileage Tracker?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Mileage Tracker?

As many as you like. As long as a model supports skills, you can use Mileage Tracker with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Mileage Tracker AI skill free?

Yes. It is published on GitHub by openaccountant under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Business Mileage Tracker

Overview

Wilson Tools Used

Workflow

Standard Mileage Rate vs. Actual Expenses

Required Mileage Log Fields

Without Wilson

Important Notes

Frequently asked questions

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