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KRA eTIMS integration service

We bring eTIMS to your system.

Already running a POS, ERP, or billing system? Advatech Group integrates KRA eTIMS fiscalization into your existing platform, on any stack.

We built eTIMS into AdvaPOS and AdvaERP. Now we offer the same work as a standalone integration service for third-party systems.

Talk to our team Also need M-Pesa?

Fiscalization sequence

Your business

Tax invoice

Draft
Sample item A1,200.00
Sample item B450.00
Total (KES)1,650.00

Control unit invoice no.

Control unit serial no.

QR

Sample document.
Not real data.

What is KRA eTIMS

Every sale is registered with KRA.

KRA requires taxpayers carrying on business, VAT-registered or not, to issue invoices through eTIMS. Sales, credit notes, and purchase documents are registered through a KRA-approved VSCU.

If your system does not yet have eTIMS wired in, we can add it to your platform without a rebuild.

  • We integrate with any modern backend stack

  • VSCU implementation and maintenance included

  • Sandbox testing before production go-live

  • Offline queue and retry logic built in

  • Sale, credit note, and reverse invoice documents

  • Ongoing support and KRA compliance monitoring

What we deliver

A complete eTIMS integration. Every edge case covered.

  • 01
    CheckoutVSCUFiscal receipt

    Invoice fiscalization

    We wire VSCU invoice submission into your checkout or billing flow. Every transaction is registered with KRA before the receipt reaches the customer.

  • 02
    Fiscal invoiceRegistered
    Credit noteLinked

    Credit note fiscalization

    Refunds and adjustments generate KRA-signed credit notes with full links back to the originating fiscal invoice, processed automatically.

  • 03
    on reconnect

    Offline queue and retry

    Transactions queue locally when connectivity drops. The integration retries the backlog automatically on reconnection, without data loss or manual intervention.

  • 04

    Printed or digital

    Checkable by customers and auditors

    QR code generation

    KRA-standard QR codes on every printed or digital receipt, so customers and auditors can verify authenticity independently.

  • 05
    Raw VSCU error code
    A plain-language message for your users

    KRA error mapping

    VSCU error codes translated into plain-language messages your interface can show, so raw API errors never reach your users.

  • 06
    VSCU healthStatus endpoint
    Queue depthStatus endpoint
    Last syncStatus endpoint

    Real-time monitoring

    Status endpoints and webhook callbacks so your system can surface VSCU health, queue depth, and last sync time to your operations team.

Why it matters

eTIMS is a requirement, not an option.

A summary of the rules as reported by EY. It is not tax advice, so confirm your position with your tax adviser or KRA.

Source: EY tax alert on e-TIMS

  1. Who is covered

    All taxpayers carrying on business

    This includes taxpayers who are not registered for VAT. Certain payments are exempt, and the Commissioner can grant other exemptions by Gazette notice.

  2. 1 June 2023

    Input VAT needs an eTIMS invoice

    Input VAT claims are allowed only against invoices generated through TIMS or eTIMS.

  3. 1 January 2024

    Expenses without an eTIMS invoice

    Expenses not generated through TIMS or eTIMS become non-deductible for income tax purposes.

Advanced feature

Reverse invoicing included

When your suppliers do not issue ETRs, we can wire reverse invoicing directly into your procurement or purchase order flow. Issue buyer-side purchase documents and maintain your VAT chain.

  1. 1

    Supplier issues no ETR

  2. 2

    Purchase order raised

  3. 3

    Buyer issues the purchase document

  4. 4

    Approval workflow

  5. 5

    Document hash and full audit history

Works with your existing stack

  • Node.js
  • Python
  • PHP
  • Java
  • .NET
  • Go
  • REST APIs
  • GraphQL
  • Webhooks
  • Any ERP or POS

Do not see your stack? If it has an HTTP layer, we can integrate it.

How we work

  1. 01

    Discovery call

    We review your existing system architecture, transaction flows, and KRA PIN setup.

  2. 02

    Integration design

    We propose the VSCU wiring points, queue architecture, and error handling strategy specific to your stack.

  3. 03

    Build and test

    We implement, unit test, and integration test against the KRA VSCU sandbox before any production traffic.

  4. 04

    Go live

    We deploy with you, monitor the first live transactions, and hand over documentation and runbooks.

Ready to add eTIMS to your system?

Tell us about your existing system and we will scope what the integration involves.

Talk to our team Also need M-Pesa?

Looking for a ready-to-use POS instead? See the AdvaPOS platform.