Your Client Just Asked for an eTIMS Invoice — Do This Within 5 Days (or Risk the Account)

The Call That Changes Everything

One day it arrives quietly — an email from your client's accounts team: "Please ensure all invoices going forward are eTIMS-compliant." Or your supplier request is rejected because the invoice looks wrong. Or your contact says it flatly: "Sorry, we can't recognize this receipt — we need an eTIMS invoice."

This is happening to thousands of Kenyan businesses right now — vehicle services, hardware, consultancy, freight, catering, everything with corporate clients. It's not a nightmare you may face. It's the new business reality, and the sooner you understand it, the cheaper it is.

The clock starts at the first email. In practice, the first rejection follows within days — and clients switch suppliers who can produce the invoice, not the ones who promise to "work on it".

If your client cannot claim your invoice, your invoice quietly goes to a supplier who can issue one.

For the businesses that acted early, eTIMS has become what a registration certificate used to be: the price of admission. It takes days, not months. This page covers why clients insist, what happens when you don't comply, and what to do in the next five days — nothing more.

Why Corporate Clients Insist on eTIMS Invoices — and Won't Wait

Your client's accounts team isn't being difficult. Their own compliance depends on your invoice:

1. Your cost is only deductible with an eTIMS invoice. Your client deducts what they pay you from their profits. Under the rules as they stand, that deduction is only valid if the supporting invoice went through eTIMS. Without it, the expense is rejected in their own return — so they literally cannot afford a non-eTIMS invoice from you.
2. Input VAT fails without it. To claim input VAT on your supply, they must hold a valid eTIMS invoice. Wrong format, no claim.
3. Their Tax Compliance Certificate depends on a clean chain. TCCs now attach to compliance across the supply chain — and a supplier with no eTIMS is a red mark in any audit conversation.

That's why clients send near-identical notices to everyone they buy from: "All invoices must be eTIMS-compliant." And over time, it extends from corporate buyers to anyone who invoices a taxpayer who files.

What Happens When You Don't Have It — and What It Costs

• Rejection, re-invoice, delay. Your invoice bounces, the money stalls, and the same work quietly switches to a supplier who can produce the invoice.
• Quiet loss of repeat work. Clients don't usually fire you — they just stop placing work. The invoice is the passcode to their systems, and there's nothing personal in it: a format requirement, applied equally.
• The pattern is public. In April 2024, a Nairobi car wash operator told the Daily Nation his corporate business had fallen from roughly 20 cars a day to a handful after clients began demanding compliant invoicing. The exact figures don't matter — the lesson does. Small businesses lose more from a few lost corporate accounts than from any penalty letter.

How to Fix It — the Five-Day Path (Start Today)

You do not need an expensive system. Realistic steps:

1. Day 1–2 — Know where you stand. Log in to iTax. VAT-registered but not yet on eTIMS? Onboard now — eTIMS Lite (web/USSD) is free and handles a handful of invoices a month, which covers most service businesses.
2. Day 2–3 — Issue one real invoice. Generate an invoice for a genuine low-value transaction, inspect it, and — if you can — have an advisor review it once. Most owners overestimate how hard this is.
3. Day 3–4 — Tell your clients. Write to the corporate clients that matter: "We've onboarded eTIMS — invoices from [date] carry eTIMS invoice numbers." One honest line rebuilds months of trust.
4. Day 5 — Update your documents. Add the statement to your quotes and invoice templates. From day six, it's habit.

And run the habit on the other side too: when you buy for the business — fuel, stationery, internet, tools — ask for an eTIMS receipt with your PIN. You can't claim your side cleanly while your suppliers' invoices stay paper.

What NOT to Do — the Mistakes That Cost Suppliers the Account

• Don't wait for the second reminder. The first reminder is usually days before the first rejection, and the fix takes days. Act on the first.
• Don't submit paper or till invoices as replacements. The mismatch between invoice types is exactly what the rejection cycle detects.
• Don't assume "this is KRA again, it will pass." It hasn't and it won't — every finance function in the country is now validating against the real system in real time. The cheapest strategy in Kenya today is to get ahead of the standard.