ChatGPT personal finance is going to be popular, eventually, but initially I expect people to be cautious about giving AI access to their bank accounts. It’s read-only, which I assume is enforced by Plaid:

When you connect your accounts, ChatGPT can access your balances, transactions, investments, and liabilities to help visualize your finances or answer your questions. It cannot see full account numbers or make any changes to your accounts.

This year I had planned to download all my bank statements and feed them to Codex to help organize things for taxes. Feels more transparent that way.