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Crypto accounting on Base

A practical overview to help finance teams on Base.

Base is Coinbase's Layer 2 solution built on Optimism's OP Stack, designed to bring mainstream adoption to decentralized applications. It offers secure, low-cost transactions while maintaining full Ethereum compatibility and easy fiat onramps through Coinbase. Base focuses on consumer-friendly applications and aims to onboard millions of users to Web3. The platform leverages Coinbase's regulatory compliance and user base to bridge traditional finance with DeFi.

What does crypto accounting on Base involve?

  • Ingesting on-chain transactions into a human-readable general ledger.
  • Tracking historical token balances and cost basis for realized/unrealized gains.
  • Classifying DeFi (swaps, LP, staking, bridges) with clear audit trails.
  • Mapping activity to a chart of accounts for financial statements.

Recommended workflow for finance teams

  1. Connect wallets, custodians, and contracts relevant to Base.
  2. Auto-tag common patterns (transfers, swaps, fees) using rules.
  3. Reconcile balances across custody sources and on-chain snapshots.
  4. Review exceptions, assign accounts/entities, and export to ERP.

Common accounting treatments on Base

  • Gas fees: typically expensed; capitalize when attributable to asset acquisition.
  • Swaps: disposal + acquisition with fair value at execution.
  • Staking rewards: recognize income upon receipt; track tax lots for disposals.
  • LP positions: record deposits/withdrawals; value positions to capture P/L.

ERP integration

Export summarized journals to your ERP with entity, account, class, and memo dimensions. Keep IDs consistent across environments to support automated, repeatable syncs.

Transactions
Supported
Historical Balances
Supported
DeFi
Supported