The Office Invoice is a crucial business document used in the Indian commercial landscape to formalize business transactions and ensure tax compliance. It serves multiple purposes: as a payment request, a tax document for GST compliance, and an accounting record. The document must comply with the Central Goods and Services Tax Act, 2017, and include specific elements such as GST registration numbers, HSN/SAC codes, and tax breakdowns. An Office Invoice is typically issued after the delivery of goods or completion of services and before payment is due. It's essential for businesses to maintain proper invoice records for tax filing, audit purposes, and claiming input tax credits. The format and content requirements vary based on the transaction value, nature of business, and whether the invoice is for interstate or intrastate transactions.

1. Invoice Header: Company logo, 'Tax Invoice' label, and invoice number

2. Seller Information: Legal business name, address, GST number, and contact details of the issuing company

3. Buyer Information: Client's legal name, billing address, GST number (if applicable), and contact details

4. Invoice Details: Invoice date, due date, payment terms, and reference numbers

5. Description of Goods/Services: Itemized list of products/services with HSN/SAC codes

6. Calculation Details: Unit prices, quantities, subtotals, applicable taxes (CGST/SGST/IGST), and total amount

7. Payment Information: Bank account details, accepted payment methods

8. Terms and Conditions: Basic terms including payment terms, late payment penalties

9. Declaration: Mandatory GST declarations and invoice authenticity statement