What input data is required?

The skill requires normalized transaction and cost-basis JSON files to accurately calculate gains and update lot records.

Does it support wash sale rules?

Yes, it detects wash sales within a 30-day window for securities, while marking them as not applicable for crypto per current regulatory policies.

Can I export the data to TurboTax?

Yes, the skill generates a specific turbotax-import.csv file and Form 8949 outputs ready for tax software integration.

What accounting method does this skill use?

The skill utilizes the First-In-First-Out (FIFO) method to allocate lots and calculate cost basis for asset sales.

Crypto Capital Gains Calculator

Name: Crypto Capital Gains Calculator
Author: phrazzld

byphrazzld

•

Productividad y Flujo de Trabajo

Calculates IRS-compliant capital gains and losses using FIFO methodology for cryptocurrency and securities transactions.

The crypto-gains skill automates the complex process of tax reporting by calculating cost basis and capital gains across various transaction sets. It implements First-In-First-Out (FIFO) accounting logic, performs wash sale detection for securities, and automatically classifies assets into short-term or long-term holdings based on holding periods. This skill is particularly useful for developers and traders who need to transform raw transaction data into tax-ready documentation, including Form 8949 outputs and TurboTax-compatible CSV files.

Características Principales

01IRS Form 8949 and TurboTax CSV generation

02Short-term and long-term gain classification

03Cost basis tracking and lot updates

04FIFO cost basis allocation logic

05Automated wash sale detection for securities

065 GitHub stars

Casos de Uso

01Preparing schedule D summaries and TurboTax import files

02Generating year-end tax reports for cryptocurrency portfolios

03Automating capital gains calculations for high-frequency trading

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add phrazzld/claude-config crypto-gains

For use in Claude.ai and ChatGPT

Download Skill