Software Radar

BlogFiduciary software

Multi-client capability: what it is and when it starts to matter

The term sounds technical and is a calculation: what costs a minute for one client costs half a day for thirty.

Published
Data as of
August 2026
Reading time
3 minutes

The essentials

  1. Multi-client capability means: separate data sets in ONE installation, with one login, one backup and one update.
  2. Without it an office runs thirty installations — and therefore thirty updates, thirty backups and thirty logins.
  3. The threshold in practice lies around five clients. Below it the administrative effort is bearable; above it, it becomes the bottleneck.
  4. All 10 fiduciary solutions compared come from vendors based in Switzerland, and 8 handle payroll in full including the electronic filings. As of July 2026.
Rather filter for yourself? All 10 solutions with 13 criteria in one table Filter by profile and features, set a budget, read the columns side by side. This article gives the bearings — the table is the tool. To the comparison table

What the term means

A client is a separate data set: its own accounts, its own chart of accounts, its own documents, its own reports. A solution is multi-client capable when it holds several of them in one installation without the data seeing each other.

The difference from «several installations» is not the separation — that exists in both cases — but the administration. One installation is updated once, backed up once, logged into once. Thirty are done thirty times.

Four things that only become possible with multi-client capability

They are the reason a company bookkeeping package does not suffice for a fiduciary office — even where it can functionally do everything.

  1. Batch processing

    A VAT return or a year end for twenty clients in one pass instead of twenty. The difference shows up in the quarter, not in the demo.

  2. Templates for charts of accounts

    A new client starts from a template rather than from an empty set. That does not only save time: it keeps the charts of accounts comparable across clients.

  3. Reports across all clients

    How many closings are open, where documents are missing, which deadlines are running. Without multi-client capability that is a list somebody maintains by hand.

  4. Rights per staff member and client

    Who may see which client. With separate installations that is a question of logins; with a multi-client solution it is a setting.

From when it decides

Up to about five clients the administrative effort is bearable. Updating five installations takes an afternoon a year, and batch processing is only noticeably missed when many clients share the same deadline.

Above that it tips. At twenty or thirty clients the effort is no longer the bookkeeping but the administration of the bookkeeping: which is finished, where something is missing, which deadline is coming. That is exactly the question a multi-client solution answers, and no other feature replaces it.

In practice one question tests it in the sales conversation: how many steps does the VAT return take for twenty clients. Whoever answers that per client it is very simple has not understood the question.

Frequently asked questions

Is ordinary accounting software enough for a small office?

Up to about five clients often yes. The comparison of accounting solutions carries adoption in the fiduciary market as a row of its own — that is the pointer to which solutions offices actually use.

Do you pay per client?

That is the decisive question about the pricing model, and it matters more than the amount. For 7 of the 10 vendors compared no price is stated, because it is precisely this unit of reference that gets negotiated. Clarify it in the first quotation.

Can the client work in it themselves?

With multi-client cloud solutions usually yes, with their own rights on their own data set. 7 of the 10 solutions run in the browser, 4 exclusively there — that is the precondition for shared access.

Where the information comes from

Figures on the survey
Own survey, as of July 2026. Multi-client capability appears as this category’s Swiss particularity in the comparison table.
The five-client threshold
An experience value and not a surveyed figure. It is meant as a point of reference and not as a boundary.

Which of the 10 fiduciary solutions are multi-client capable appears in the comparison table as a row of its own.

All 10 providers in the comparison table: Fiduciary software

More articles