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Guide 15. Mai 2026 1 min read

Mobile Phone Invoices for Companies: How to Stay on Top

How SMBs with multiple SIM cards maintain an overview of mobile costs — without hours of manual analysis.


Whether you have 10 or 100 SIM cards — the monthly mobile invoice is one of the most opaque cost items in many companies. Which number costs what? Which employee is racking up the highest roaming charges?

Without a clear process, you quickly lose oversight — and with it, control over a significant cost block.

Why mobile invoices are so hard to follow

A company with 20 employees can easily have 25 to 30 active SIM cards. The monthly invoice from the provider often spans 20 to 50 pages in PDF format, packed with base fees, itemized call records, roaming charges, and add-on services.

The result: invoices get rubber-stamped, not analyzed

The invoice arrives, accounting books it — and that's it. A systematic review never happens. That costs companies real money.

What good analysis should deliver

A structured overview should answer the following questions at a glance:

Manual vs. structured solution

Manual / Excel IIA Analysis Suite
Effort per month 2–5 hours Minutes
Error rate High Low
Overview Limited Complete
BMD export Manual Direct

Conclusion: clarity is the first step

The mobile invoice is no mystery — but it needs structure. Once you have a clear overview, you can make informed decisions: which tariffs still fit? Which numbers are barely used?

IIA Analysis Suite automates mobile invoice analysis — with direct BMD integration for Austrian SMBs.

Try for free →