River
Bitcoin Accounting
River + Clams
CSVRiver is a Bitcoin-only exchange with recurring buys and zero-fee withdrawals. Clams imports your River buy and sell history via CSV export. Your purchase prices become accurate cost basis for capital gains calculations.
What Clams tracks
- Bitcoin purchases with exact cost basis
- Sell transactions and proceeds
- Timestamps for all transactions
- Fees and transaction costs
- Withdrawals to external wallets
- Auto categorizing of transfers to your other connected wallets
How it works
Export from River
In your River account, download your transaction history as a CSV file.
Import CSV in Clams
Add a new wallet in Clams and import the CSV file. Map columns if needed using the custom import tool.
Review and categorize
Transactions are imported with cost basis from your purchase prices. Review and add categories as needed.
Resources
Custom imports guide
Learn how to use the custom CSV import tool
Video walkthrough: CSV import
Frequently asked questions
What data does Clams import from River?
Clams imports your buy and sell history from River including purchase amounts, prices paid, timestamps, and fees. This gives you accurate cost basis for capital gains calculations.
Does Clams access my River account?
No. CSV import is completely offline. You export your transaction history from River and import the file into Clams. No connection to your River account is required.
Can I track multiple River accounts?
Yes. Import each River account's CSV separately in Clams. Each gets independent tracking and reporting.
Does Clams track my purchase price from River?
Yes. The River CSV export includes purchase prices. Clams uses this to calculate accurate cost basis for your Bitcoin. When you later sell or spend, capital gains are calculated correctly.
How do I get capital gains reports from my River transactions?
Export your transaction history from River as CSV and import into Clams. Clams uses your purchase prices to calculate cost basis. Export capital gains reports for tax preparation from the Exports widget.
What if my CSV format isn't recognized?
Use our custom import tool to map columns manually if the River format isn't automatically recognized. The tool lets you specify which columns contain dates, amounts, prices, and transaction types.
Start tracking your River purchases
Download Clams and import your transaction history in minutes.