Credits and billing
Read your Usage page
Tandem's Usage page, in Settings → Usage, shows your credit balance, what is reserved, spending by action and your history.
Credits
The Credits bar splits your balance into Plan credits (with their reset date), Purchased credits and Reserved. Hover or focus a part to see what it is for.

Related: Plan credits vs purchased credits · Reserved credits
This month
Credits spent so far this month, by action.
History
Pick 7d, 30d or 90d, then Charts for your daily balance and spend, or List for each entry. It includes what you spent, what you added, and plan credits that expired.
Job ads
If you have advertised a role, the Job ads card shows what each ad reserved, spent and has unspent.
No Usage tab?
Billing and Usage appear only when the workspace is on a plan.
Related: Plans