Signed Sales Invoice

An eTIMS-signed sales invoice is an official document issued through the eTIMS system, serving as proof of a transaction between a seller and a buyer. This invoice is digitally signed to ensure authenticity, integrity, and compliance with the Kenya Revenue Authority (KRA) regulations for electronic invoicing.

Key Features of an eTIMS-Signed Sales Invoice

  1. Digital Signature
    The eTIMS system digitally signs each sales invoice, certifying its authenticity and preventing unauthorized modifications.
    The signature is a seal of compliance with KRA requirements for electronic tax documentation.
  2. Unique Invoice Number
    Every eTIMS invoice is assigned a unique identifier for accurate tracking and reconciliation.
    This ensures no duplicate invoices can exist within the system.
  3. Tax Compliance
    The invoice automatically includes the applicable tax details, such as VAT or other relevant taxes, calculated in compliance with KRA standards.
    Tax amounts are clearly indicated to simplify reporting for both parties.
  4. Itemized Breakdown
    The invoice provides a detailed breakdown of the products or services sold, including descriptions, quantities, unit prices, and total amounts.
    Discounts, if any, are clearly stated to ensure transparency.
  5. Time-Stamped Validation
    The invoice includes a timestamp showing the exact date and time of issuance, critical for audit trails and regulatory compliance.
  6. Buyer and Seller Details
    It contains essential information about the buyer and seller, including business names, PINs, addresses, and contact details, as required by KRA.

When to Issue an eTIMS-Signed Sales Invoice

An eTIMS sales invoice is mandatory in the following situations:

  1. Sale of taxable goods or services.
  2. Export of goods or services.
  3. Transactions requiring documentation for input tax claims or regulatory compliance.

Steps to Generate an eTIMS-Signed Sales Invoice


  1. Enter Transaction Details
    Provide details such as:
    • Buyer information (name, PIN, contact).
    • Product or service descriptions, quantities, unit prices, and applicable discounts.
    • Tax details (e.g., VAT).
  2. Submit for Processing
    Confirm the details and submit the invoice for system processing.
  3. Generate and Digitally Sign the Invoice
    The eTIMS system will validate the data, calculate the taxes, and digitally sign the invoice.
  4. Share with the Buyer
    Issue the signed sales invoice to the customer via print or electronic delivery.

Advantages of an eTIMS-Signed Sales Invoice

  1. Regulatory Compliance
    Ensures adherence to KRA’s regulations for invoicing and tax reporting.
  2. Enhanced Accuracy
    Automated tax calculations minimize errors in tax reporting.
  3. Transparency
    Detailed itemization builds trust between buyers and sellers.
  4. Audit Readiness
    Digitally signed invoices are easy to track and validate during audits, ensuring smooth regulatory checks.
  5. Fraud Prevention
    Unique identifiers and digital signatures protect against invoice forgery or tampering.

Components of an eTIMS-Signed Sales Invoice

  1. Header
    Invoice number, date, and your company logo.
  2. Seller Details
    Business name, KRA PIN, address, and contact information.
  3. Buyer Details
    Name, address, and contact details (optional for retail transactions).
  4. Itemized List
    Product or service descriptions, quantities, unit prices, and totals.
  5. Tax Breakdown
    Clear segregation of VAT and any other taxes.
  6. Total Amount
    Total payable amount, inclusive of taxes.
  7. Digital Signature
    eTIMS signature seal for authenticity.

For more in-depth information, please visit: Sales.

Sample of a signed sales invoice

By using an eTIMS-signed sales invoice, businesses streamline their operations, maintain transparency with customers, and comply with Kenya’s tax regulations. It is a crucial tool for ensuring trust and efficiency in financial transactions.