You can change which budget a card spends from at any time, as long as the card is active.
How to change a card’s budget
- Click Cards in the sidebar.
- Click on the card you want to update.
- On the card detail page, find the Current budget section below the card image.
- Click the budget name (or Select budget if none is assigned).
- In the dialog that appears, choose the new budget from the list.
- Click Save.
[screenshot: Card detail page showing the Current budget section with the budget selector dropdown]
Important: You cannot change the budget on a frozen or cancelled card. Unfreeze the card first if needed.