Last updated: 14 May 2025
Summary: Coinbase has updated its OAuth API, which may prevent new transactions (after 13 May 2025) from importing into Crypto Tax Calculator (CTC) for some users. This guide explains who’s affected and how to restore full transaction syncing.
Who’s Affected?
You may be impacted if all of the following apply:
You connected Coinbase using the “Connect to Coinbase” OAuth option.
You have Advanced Trade activity in your Coinbase account.
You selected specific portfolios when authorizing access, instead of granting access to all accounts.
✅ You are not affected if you import Coinbase data via API keys or CSV files.
What’s the Impact?
If you're affected, transactions from May 13, 2025 onward may be missing from your CTC account. This is due to limited access permissions set during the original OAuth authorization in your Coinbase account.
How to Fix It
To ensure all Coinbase Advanced Trades transactions are imported into CTC:
Review your third-party OAuth application access on Coinbase at https://accounts.coinbase.com/security/connections.
Reauthorize the Coinbase connection on your CTC Accounts page if needed.
FAQs
Q: How do I know if I’m affected?
If you're missing Coinbase Advanced Trade transactions from May 13, 2025 onward and you:
Connected via the “Connect to Coinbase” OAuth option
Have Advanced Trade activity
Granted access to specific portfolios instead of all accounts
…then you’re likely impacted by this update.
Q: Do I need to delete my current Coinbase integration?
No. You don’t need to delete anything. Simply review your OAuth settings on Coinbase and click Reconnect on the Accounts page in CTC to restore full access.
Q: I use API keys or CSV files to import Coinbase data — do I need to do anything?
No. This update only affects users who connected Coinbase via OAuth (the “Connect to Coinbase” option). API key and CSV imports are not impacted.
Still need help?
If you have any questions or need help, we're here for you! Feel free to reach out to us via the in-app chat in the bottom-right corner or send your inquiries to [email protected].