Base CSV export

Export Base Transactions to CSV

Base is where a huge share of on-chain activity happens now - and every swap, mint, and transfer is taxable activity you need records for. This tool pulls your Base wallet history, lets you preview it free, then downloads it as a clean, Koinly-ready CSV after processing.

Last updated 2 October 2026

What's Included in Your Base Export

ETH transfers on Base - All incoming and outgoing ETH payments on the L2

ERC-20 token transfers - USDC, DEGEN, AERO, and every other Base token your wallet has touched

Token swaps - Trades executed via Aerodrome, Uniswap on Base, and other DEXes

Internal transactions - Contract payouts and refunds that regular explorers hide

Gas fees - Fees in ETH on every transaction you signed

Bridge activity - Deposits and withdrawals via the Base bridge appear as transfers

Transaction hashes - Every row links back to the on-chain record for verification

How to Export Your Base Transaction History

1
Copy your wallet address
Open Coinbase Wallet, MetaMask, Rabby, or any wallet you use on Base and copy your public 0x address. It is the same address you use on Ethereum mainnet.
2
Select Base and paste your address
On the home page, pick the Base tab, paste the address, and preview your transactions free - no account, no signup.
3
Download and import your CSV
Download the full Koinly-ready CSV from $4.99. Import into Koinly, or open it in Excel or Google Sheets.

One Wallet, Multiple Chains

Because Base shares addresses with Ethereum, most Base users also have mainnet activity under the same 0x address. Tax tools need each network's history imported separately, so export both: run your address on the Base tab, then again on the Ethereum tab.

Each file is labelled by network, so Koinly, CoinLedger, and CoinTracker keep the two histories cleanly separated.

Frequently Asked Questions

How do I export Base transactions to CSV?

Paste your wallet address into ExportMyWallet.com, select the Base tab, and click to preview. Your Base transactions appear after processing with no account or login. To download the supported history within plan limits as a .csv file, choose the Standard ($4.99), Plus ($12.99), or Complete ($29.99) plan.

Is it free to export Base transactions?

Previewing your Base transactions is always free, with no account or credit card required. To download the CSV, the Standard plan ($4.99) covers up to 1,000 transactions, Plus ($12.99) covers up to 5,000, and the Complete plan ($29.99) covers up to 50,000.

Do I need a different address for Base than Ethereum?

No. Base is an Ethereum Layer 2, so your wallet uses the same 0x address on both networks. The transaction history is separate though - select the Base tab to export your Base activity, or the Ethereum tab for mainnet.

What is included in the Base CSV export?

Every ETH transfer on Base, ERC-20 token transfer (USDC, DEGEN, and every other Base token), internal transaction, and gas fee, with date and time in UTC, amounts, and the transaction hash for verification.

Can I use the exported CSV for Base tax reporting?

The CSV uses Koinly columns. Convert it to CoinLedger or CoinTracker's current template before importing. You can also open it in Excel or Google Sheets.

Is my Base wallet safe?

Completely. We only read publicly available on-chain data using your wallet address. We never ask for your private key, seed phrase, or wallet connection.

Free. No signup required.

Export Your Base Transactions

Paste your 0x address to preview your transactions free, then download the full Koinly-ready CSV from $4.99. No login required.

Export Base Transactions

Works with Coinbase Wallet, MetaMask, Rabby, and any wallet you use on Base.