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tax

v0.1.7

Published

TaxMaxi CLI - Crypto tax infrastructure for fintechs, degens, and AI agents.

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Links

Maintainers

max_a31max_a31

Keywords

basebitcoinclicoinbasecryptodefiethereumsolanataxtaxmaxi

Readme

What is TaxMaxi?

TaxMaxi is API-first crypto tax infrastructure.

Instead of a UI-only tax tool, TaxMaxi turns raw exchange and onchain activity into machine-readable, tax-ready events that can be consumed by:

  • tax firms
  • wallets and exchanges
  • neobanks
  • AI agents that need deterministic tax logic

Today, this CLI focuses on a Coinbase integration for German tax law. Under the hood, it uses the same TaxMaxi API primitives that product teams can integrate directly.

Why this matters

  • Crypto tax data is fragmented across exchanges and blockchains
  • Existing tools often fail to categorize complex transactions automatically
  • New regulation (for example DAC8 + MiCA in the EU) increases compliance pressure
  • Agentic finance needs structured tax infrastructure, not manual spreadsheets

Install

npm install -g tax

Quick start

# run the full Coinbase workflow
tax coinbase

Coinbase workflow

tax coinbase runs three steps in sequence:

  1. connect - OAuth connect and local session caching
  2. sync - sync Coinbase records into TaxMaxi
  3. calculate - compute German tax summary for the selected year

You can also run each subcommand independently:

tax coinbase connect
tax coinbase sync
tax coinbase calculate --year 2025

Useful flags

  • --json: machine-readable output
  • --no-browser: do not auto-open OAuth URL
  • --force: force re-authentication
  • --year <YYYY>: tax year for calculate

Internal note: TaxMaxi team can override the API endpoint with TAXMAXI_API_URL.

Roadmap

More exchanges, chains, and countries - quarter by quarter.

Q1 2026 (Live now)

  • Exchanges: Coinbase
  • Chains: Ethereum
  • Jurisdictions: Germany

Q2 2026

  • Exchanges: Kraken, Bitstamp
  • Chains: Bitcoin, Solana
  • Jurisdictions: United States

Q3 2026

  • Exchanges: Binance

Q4 2026

  • Jurisdictions: United Kingdom, France

Links

  • Website: https://www.taxmaxi.com
  • API: https://api.taxmaxi.com