More detail
The broad aim is to widen and tighten the tax base by having invoices reported electronically rather than reconstructed from paper at filing time. That is a KRA policy goal, not a Veira one.
The side benefit for a compliant trader is real: when your invoices are already in the system, preparing returns is easier and you have a verifiable record of your revenue, which helps with things like loan applications.
Related questions
Does eTIMS only benefit KRA?
Is eTIMS about catching tax evasion?
Veira gives Kenyan shops one calm app for selling, M-Pesa, KRA eTIMS and stock, with a free terminal. Book a demo and see it set up for your trade.