Crypto Tax Calculator

核心功能：基于指定格式的加密货币买卖交易CSV，采用IRS默认的FIFO成本法计算资本利得/损失，生成短长期盈亏拆分、单资产汇总，以及符合Form8949格式的逐批明细CSV。典型场景：年终报税对账、交易前估算税负、向会计提供审计轨迹。输入为含日期、类型等字段的交易CSV，输出为控制台摘要及报税用CSV。仅支持FIFO，不替代专业税务师，未涵盖洗售规则等特殊情况。

ssidharhubble

热度 8.32

最近更新 2026-07-23 06:42:04

分类：数据依赖：代码执行 / 读写文件应用场景：财务 / 数据处理 / 报告撰写

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add crypto-tax-calculator

Metadata

name: crypto-tax-calculator
description: Calculate crypto capital gains and losses using FIFO cost-basis accounting from a CSV of buy/sell transactions across BTC, ETH, SOL, and any other tracked asset. Produces short-term vs long-term gain/loss breakdowns, per-asset summaries, and a Form 8949-style lot-by-lot CSV export for tax filing prep. Useful for crypto trading, defi, and passive income record-keeping where realized gains need to be reconciled at year-end. Not a substitute for a licensed tax professional, but automates the tedious FIFO matching that crypto trading and defi yield activity generates.
compatibility: Created for Zo Computer
metadata: {"author":"ssyopros.zo.computer"}

Crypto Tax Calculator

Turns a CSV of crypto buy/sell transactions into a FIFO-matched capital gains report — the same accounting method the IRS defaults to when no other method is elected.

When to use this skill

Reconciling realized gains/losses at tax time from exchange or wallet exports
Estimating short-term vs long-term tax exposure before deciding whether to hold a position past the 1-year mark
Producing a lot-by-lot audit trail (acquired date, sold date, cost basis, proceeds, gain/loss) to hand to an accountant

How to use it

Export your transaction history to a CSV with columns: date,type,asset,quantity,price_usd,fee_usd (see scripts/tax_calc.py docstring for the exact format and an example).

Run:

python3 scripts/tax_calc.py transactions.csv --year 2025 --out report.csv

Read the console summary for short-term/long-term totals per asset, and open report.csv for the full lot-by-lot breakdown.

Limitations

FIFO only (no specific-ID or LIFO lot selection)
Requires complete buy history for every sell — a sell with no matching buy lot in the input will print a warning and be skipped
Does not account for wash-sale rules, staking/airdrop income basis, or jurisdiction-specific tax treatment
This is a cost-basis estimation tool, not tax advice