A commercial document issued by a seller to a buyer, detailing the products or services provided, quantities, prices, and payment terms.
An invoice serves as a formal request for payment and a legal record of the sale. Under GST in India, tax invoices must include specific details like GSTIN, HSN/SAC codes, tax amounts, and place of supply. Different types include regular invoices, proforma invoices, credit notes, debit notes, and e-invoices. Timely invoicing directly impacts cash flow and accounts receivable management.
A web development agency issues Invoice #INV-2026-0042 to a client for ₹1,50,000 + 18% GST (₹27,000) = ₹1,77,000 total, with payment due in 30 days.
Ensures accurate financial reporting and record-keeping
Helps maintain regulatory and tax compliance
Enables better-informed business decisions
Improves operational efficiency and cash flow management
Functionally, they're the same document. 'Invoice' is typically used by the seller (who issues it), while 'bill' is used by the buyer (who receives it). In GST context, the term 'tax invoice' is the official standard.
Supplier GSTIN, invoice number, date, buyer details, HSN/SAC codes, item descriptions, quantities, values, tax rates (CGST/SGST/IGST), total amount, and place of supply.
A document issued by a seller to a buyer reducing the amount owed, typically for returned goods, billing errors, or post-sale discounts.
A document issued by a seller to increase the amount owed by a buyer, typically when the original invoice amount was less than the actual value.
A standardized electronic invoicing system under GST in India where invoices are authenticated by the Invoice Registration Portal (IRP) before being issued.
Money owed to a business by its customers for goods or services delivered but not yet paid for.
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