Cost Traps in Taxi Software: What the Price Tags Don't Tell You

In this chapter: why the base fee rarely stands alone · modules that cost extra · when the price is a percentage · hardware, training, call-outs · the calculation missing from the offer · free trials and drifting prices.

The costliest mistake

Taking the monthly price for the price. Between the base fee on the offer and the amount that has actually left your account by year’s end lie — with many providers — an activation fee, mandatory packages, modules and percentages on revenue. Reading only the first number means comparing apples with half apples.

This chapter names no best prices and puts no providers head-to-head in a table. It explains the mechanics: the places where a friendly base price turns into a different annual total. Knowing those places, you can re-check any offer yourself — and that is worth more than any price survey, which is outdated the moment it appears.

Chapter 1 — Why the base fee rarely stands alone

The first number on the offer is the base fee. Next to it there are often items that are not optional. DMRZ, for instance, requires a mandatory service package on top of the chosen tariff, tiered as Bronze, Silber (Silver) or Gold at €3.99, €9.99 or €24.99 per month (as of 07/2026). With cloud systems, communication comes on top: HALE charges €3.40 per vehicle per month for the SIM card, Seibt & Straub €2.00 per month for the smartHUBX-2 communication package. And many providers charge a one-off setup — at Seibt & Straub it is €49.00 per vehicle for activating the cloud TSE, the certified recording unit on the taximeter (covered in detail in the chapter on legal obligations).

Individually, these are small amounts. The point is not their size, but that they are missing from the headline price and destroy the comparability of two offers.

Chapter 2 — Modules that cost extra

Many systems are modular. That is reasonable in itself — you pay only for what you use — but it shifts the real price question into the configuration. At Seibt & Straub, the TSE base module with DSFinV-TW signature — the audit export format of the German tax administration — costs €14.90 per month; the modules for trip receipts and for shift recording add €7.50 each on top. HALE prices add-on modules such as cash book, tracking, shift planning or patient transport separately. At TaxAb, the interfaces to DATEV, Taxi.de or the billing service provider BFS must be unlocked for a fee, and the dakota.le add-on component is required for the Datenträgeraustausch (DTA — the electronic data exchange used to bill Germany’s statutory health insurers) (as of 07/2026).

Remember

Don’t ask “What does the system cost?” — ask “What does the configuration cost that covers exactly my obligations and my cases?” A base module that only delivers half the necessary functions at extra charge is cheaper only on paper.

Chapter 3 — When the price is a percentage

Some providers charge not in fixed monthly amounts but in percentages of your revenue. That can start small and grow with the business — in a direction rarely thought through in advance. DMRZ charges between 0.6% and 1.2% above the billing volume included in the tariff, depending on the tier. Taxi.de takes 1% of the monthly gross billing volume for its billing solution. Seibt & Straub adds 5% to the fare for app payments via cab4me.

A second percentage hides in card payments. With MPC/TARIS via the service provider SumUp, it is 0.9% per EC (debit) card payment and 1.9% for contactless or credit card payments (as of 07/2026). At twenty card trips a day, over a year that adds up to an amount that appears nowhere in the base price.

Chapter 4 — Hardware, training, call-outs, late fees

The software is rarely everything. The taximeter, the TSE and the installation are separate items; HALE, by its own account, quotes hardware prices only through customer service, and the industry puts the hardware retrofit on the taximeter at figures starting around €500 per vehicle. Then there are services that can be mandatory: Taxi.de requires a telephone training session at €150 for two hours for its billing solution, charges on-site visits at €90 per hour plus travel, and levies a €15 late-payment fee. Finally, the running small items the industry itself warns about: costs for SMS dispatch and for the use of map services such as the Google Maps interface.

For an overview, the items that can appear alongside the base price — each documented above in this chapter with example and source:

Cost type	What to watch for
One-off setup / activation	Due per vehicle, not included in the monthly price (example: €49 per vehicle for cloud TSE activation).
Mandatory service package	Cannot be deselected, often tiered (example: €3.99 / €9.99 / €24.99 per month).
SIM / communication fee	With cloud systems, per vehicle per month (example: €3.40 or €2.00).
Paid modules	Only the “base” is included; DSFinV-TW signature, trip receipts, shift recording or patient transport often cost extra.
Revenue / volume percentages	Share of billing volume (e.g. 0.6–1.2% or 1%) — grows with the business.
Card payment disagio	Per transaction (e.g. 0.9% EC/debit card, 1.9% contactless / credit card).
Hardware & installation	Taximeter, TSE and installation are separate; taximeter retrofit from around €500 per vehicle.
Training, call-out, late fee	Can be mandatory (e.g. €150 telephone training, €90 per hour on site, €15 late-payment fee).
Running small items	SMS dispatch, map service usage — small individually, noticeable in total.

Chapter 5 — The calculation missing from the offer

The only number that counts appears on no offer: the total cost of the first full year. Let’s work through a documented case, for the TSE part alone and per vehicle. With Seibt & Straub’s cloud TSE fully configured, the base module (€14.90), trip receipts (€7.50), shift recording (€7.50) and the communication package (€2.00) add up to €31.90 per month. Over twelve months that is €382.80, plus the one-off activation of €49.00 — makes €431.80 in the first year per vehicle, just for the statutory recording, without dispatch, billing or hardware (as of 07/2026).

This figure is not a verdict on the provider but a template for your own calculation. Because the cost structure differs fundamentally. TAXI-Experte, for instance, sells a licence outright — the Compact S edition for €780 net — and ties a mandatory service contract of €20.50 per month to it; here you pay a lot upfront and little ongoing. Taxi.de and DMRZ, by contrast, scale with revenue. Only once you run both structures over three or four years do you see which one fits your operation.

Remember

A low monthly price with a high setup fee and a high monthly price with no setup fee can reverse over the contract term. Don’t calculate the month — calculate the years you are likely to stay.

A word on the providers that publish no prices at all — among them GefoS, MPC/TARIS, SuE/TaMi, fms/Austrosoft and the dispatch software from Taxi.de (as of 07/2026). This is no accusation; in the dispatch-centre and fleet business, individual quotes are the norm. For you it simply means: demand a written, complete offer with every item from this chapter before you compare. A verbal base price is no basis for a calculation.

Chapter 6 — Free trials and drifting prices

A free entry lowers the threshold, not the later price. Fahrdienst Software lets 30 trips run free of charge with no time limit; after that, the Starter tariff begins at €79 per month — remarkable, because older sources still quoted €49 for the same product. DMRZ grants 14 trial days, TaxAb via the maja.cloud platform as many as 60, TaxiAdmin seven. Such trial phases are useful for testing the handling; as a price promise they are worthless.

A general caution follows from this: prices in forums, old blog posts or overview pages go stale quickly. DMRZ, for example, used to communicate “only 0.5% of the gross invoice total” and today charges in tiered tariffs. What is written here carries the date 07/2026 — and even that you should have freshly confirmed before signing.

Checklist for the cost review

• Is there a written offer with every item — base fee, setup, mandatory packages, SIM, modules?
• Are there percentage fees on revenue or card payments, and what do they amount to at my trip volume?
• Which hardware, training and call-out costs come on top, one-off or recurring?
• Have I calculated the total cost of the first year and of a realistic period of use?
• Is the quoted price confirmed in writing and current, not taken from an older source?

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Continue in the handbook: Legal obligations · Contract clauses · back to the overview.

Last updated: July 11, 2026. The amounts named come from the public manufacturer documentation of the systems reviewed and each carry their as-of date; prices change. This chapter is an orientation for doing your own calculation and is no substitute for an individual quote.