This professional sales invoice template gives freelancers, studios, and small businesses a ready-to-use billing system in a single XLSX workbook. The Invoice sheet captures company details, customer information, and line items with unit prices, tax rates, and automatic totals — populated with sample services like brand workshops, campaign design packs, and retail poster print runs from the source file.

The supporting sheets turn the template into a lightweight accounts-receivable tracker. The Invoice Register logs every issued invoice with date, customer, currency, net, tax, gross, due, paid, balance, status, age days, and owner fields. The Lists sheet centralizes customer defaults, product codes, descriptions, and tax codes so you can reuse them across invoices without re-typing.

Every cell, formula, and label is fully editable in WPS Office, Microsoft Excel, Google Sheets, or Apple Numbers. The included Instructions sheet walks you through the complete workflow — create, issue, collect, and close — with a checklist covering data validation, formula protection, and print setup.