# Invoice approved time

**Category:** [Time Tracking](https://help.totalctrl.app/hc/totalctrl/totalctrl-help-center/en-US/categories/time-tracking)
**Updated:** 2026-08-19

Turn approved, billable hours into an invoice without leaving Time Tracking.
## Create an invoice

- Open *Time Tracking → Invoicing*. You'll see approved, billable, not-yet-invoiced time grouped by project, with hours and amount.
- Click **Create invoice** for a project.
- A **draft invoice** is created in Accounting — one line per entry (date + description, hours × rate), in the project's currency. If the project's client maps to an Accounting customer, it's filled in automatically.

## The double-bill guard

When an invoice is created, every included entry is stamped as invoiced and drops out of the candidate list, so the same time can never be billed twice.
## Finishing up

The invoice is a draft on purpose — set the customer, taxes, and send it from the Accounting app.

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## Related Articles

- [Custom fields on time entries](https://help.totalctrl.app/en-US/articles/timetracking-custom-fields-overview)
- [Filter, sort and group reports by a custom field](https://help.totalctrl.app/en-US/articles/timetracking-reporting-custom-fields)
- [Approve and lock timesheets](https://help.totalctrl.app/en-US/articles/approve-timesheets)
- [Filter, sort and group reports by a custom field](https://help.totalctrl.app/en-US/articles/timetracking-reporting-custom-fields-1)
- [Custom fields in the API and AI tools](https://help.totalctrl.app/en-US/articles/timetracking-custom-fields-api-1)

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