Sri Lanka Tax Invoice Format 2481/22: Field-by-Field ERP Mapping Guide

Businesses searching for the exact Sri Lanka VAT tax invoice format usually want one practical answer: which fields must the ERP produce correctly every time? Gazette Extraordinary 2481/22, dated March 27, 2026, provides a specimen TAX INVOICE layout effective from July 1, 2026, and rescinds the earlier November 2025 specification from that date.

The format is more than a document design. It is a data model for VAT invoicing: supplier identity, purchaser identity, invoice number, invoice date, supply date, taxable line details, VAT amount, total value, optional supply information, and payment method must all be available from controlled ERP records.

Required invoice header fields

• The document title should clearly read TAX INVOICE in a conspicuous position.
• The supplier section should include the supplier’s 9-digit TIN, name, and address from VAT registration records.
• The purchaser section should include the purchaser’s 9-digit TIN, name, and address where required.
• The invoice date and date of supply should be available in MM/DD/YYYY format.
• The tax invoice number should follow the standardized serial number structure without spaces and within the 40-character limit.

Line and value fields the ERP must control

1. Reference or item identifiers for goods or services supplied.
2. Clear goods or services descriptions that match operational records.
3. Quantity or volume for measurable supplies.
4. Unit price and amount excluding VAT in Sri Lankan Rupees.
5. Total value of supply, VAT amount, and total consideration including VAT.
6. Optional total amount in words and mode of payment where available.

ERP mapping checklist

• Map supplier and purchaser TIN fields from master data, not from free-text invoice notes.
• Generate invoice serial numbers from controlled ERP sequence rules instead of manual typing.
• Separate VAT-taxable goods or services from non-VAT items so the tax invoice contains only appropriate lines.
• Keep original invoice, credit note, and debit note references linked for audit traceability.
• Test printed invoice, PDF invoice, email invoice, export file, and API payloads against the same source transaction.

How Capricon Core supports the format

Capricon Core can support Gazette 2481/22 readiness through configurable invoice templates, TIN-aware customer and supplier records, controlled serial-number rules, VAT line calculations, approval workflows, and audit-ready reporting. These controls help finance teams produce consistent invoice data for print, digital sharing, and future integration workflows.

As with any tax configuration, businesses should validate final invoice layouts, field rules, and rollout timing against the latest IRD publication and professional tax advice before issuing live invoices.