You can use the billing feature of Polaris PSA to:
Users with billing manager or project manager permission can carry out billing.
Project managers can create bills and credit memos for their projects from the Billing & Invoicing tab within each project.
While, billing managers work from the Billing section of Polaris PSA.
The Billing > Overview page gives a summary of your estimated, available to bill, and actual billing amounts – including unbilled amounts and adjustments.
You can view amounts by week or by month, using the drop-down located in the top, right-hand corner of the page.
The Billing > Available to Bill tab shows amounts that became available to bill per client, per day. You can create a bill for a daily amount from this page.
Click the icon in the Search bar at the top of the Billing > Transactions page to filter the list of bills, credit memos, and payments by client or date.