What an eTIMS SDK does
An SDK, or software development kit, is a library that packages the work of talking to a system so developers do not implement everything from scratch. An eTIMS SDK, where one is available, would wrap the control unit setup, authentication, building invoice payloads and transmission, exposing simpler functions to your code.
The honest position is that SDK availability, language support and maintenance vary, and whatever an SDK does, KRA's official documentation remains the source of truth for the underlying contract. So an SDK can save time, but you should evaluate any SDK for whether it is current, certified or trustworthy, maintained, and aligned with KRA's requirements, rather than assuming it is correct. For many businesses, the simpler route is compliant software that removes the integration entirely.
The cheapest eTIMS integration is often the one you do not have to build, certify and maintain yourself.
How to approach it
A practical path. Confirm exact technical details against KRA's official documentation.
- 1
Decide if you need an SDK at all
If you are not building a custom integration, you do not need an SDK. Compliant software handles eTIMS for you.
- 2
Evaluate any SDK against KRA documentation
Check that an SDK is current, maintained and aligned with KRA's official requirements before relying on it.
- 3
Confirm language and support fit
Make sure the SDK supports your language and stack and has support you can rely on if KRA changes requirements.
- 4
Test through the SDK in the sandbox
Validate that invoices sent via the SDK transmit and validate in KRA's environment before production.
What to check before you build
Trusting an SDK blindly
An SDK can be out of date or unofficial. Evaluate it against KRA's documentation rather than assuming it is correct.
Ignoring maintenance
An unmaintained SDK becomes a liability when KRA changes requirements. Confirm it is actively maintained.
Building around an SDK you do not need
If you are not integrating, an SDK adds complexity for nothing. Compliant software is simpler.
A developer evaluates before adopting
A developer in Nairobi considered an eTIMS SDK to speed up a build, but rather than adopting it blindly, evaluated whether it was current, maintained and aligned with KRA's documentation.
Finding gaps, they used it as a starting point but verified each operation against KRA's official spec and tested in the sandbox.
The SDK saved some time, but the verification against the authoritative source is what kept the integration compliant and resilient.
Trading without eTIMS-compliant tax invoices risks KRA penalties, blocked VAT input claims for your customers, and receipts a business buyer cannot expense.
Veira signs every sale to KRA eTIMS automatically, so each receipt is compliant the moment it prints, with no separate device to reconcile.
When you can skip the integration
The biggest decision here is whether you need to build an integration at all. Veira is already a compliant eTIMS system: it issues compliant KRA invoices automatically, applies the right tax treatment, captures the buyer PIN, transmits to KRA, and works offline. For many businesses that removes the need to build, certify and maintain a custom integration yourself.
If you do run an ERP or a custom stack, weigh the cost of building and maintaining an integration against running point of sale and invoicing on Veira and reconciling. Veira runs from KES 2,999 a month with a free terminal and a 30-day money-back guarantee. See how Veira works, or book a free demo to talk through your setup.
Frequently asked questions
Is there an official eTIMS SDK?
What does an eTIMS SDK do?
Should I use an SDK or build directly?
Can I avoid SDKs and integration entirely?
Do I have to build my own eTIMS integration?
Where is the authoritative eTIMS technical spec?
eTIMS SDK comes down to the concepts above plus KRA's official documentation for the exact details, and for many businesses the simplest path is compliant software that handles it for you. See how Veira works, or book a free demo. Always build against KRA's current official eTIMS documentation.