Importing a spreadsheet

Go to Invoices > Import CSV and upload a CSV file with one invoice per row. Excel and Google Sheets can both save as CSV ("Comma-separated values").

You'll see a preview before anything is saved. Rows with problems are listed with the reason, so you can fix the file and upload it again.

Clients are matched by email address. New ones are created for you; set whether each is a company, sole trader or private person afterwards on the client's page, because that decides which steps apply.