Accounting · head to head
Causal vs DATEV
Causal
Accounting
Formula-based financial planning and modelling, now sold as Lucanet xP&A
- From
- On request
- Rated
- -
DATEV
Accounting
German accounting, payroll and tax software built around the tax adviser rather than the business
- From
- On request
- Rated
- -
The short version
- Each has a real cost: Causal causal was acquired by Lucanet on 31 October 2024 and the independent brand has been retired in favour of Lucanet xP&A, so the roadmap, support and pricing you buy are Lucanet’s and not the ones the product built its reputation on.; DATEV dATEV does not publish transparent per-customer pricing the way a SaaS vendor does; your real cost is buried in your tax adviser's fee note, so comparing it against Lexware or sevdesk on price is genuinely hard.
- They diverge on capability: Causal covers Variable-based modelling, DATEV covers Unternehmen online.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Causal and DATEV actually diverge.
Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Accounting).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Causal
- Variable-based modelling
- Dimensional breakdowns
- Scenario and range inputs
- Actuals integration
- Interactive dashboards
- Version history
- Spreadsheet import
- Workforce and headcount planning
Only in DATEV
- Unternehmen online
- Lohn und Gehalt
- Rechnungswesen
- Jahresabschluss
- DATEV DMS
- Meine Steuern
- DATEV-Schnittstelle
What people use each for
The jobs each tool is most often brought in to do.
Causal
- A finance team whose three-statement Excel model has become too fragile to change safely before every board meetingnot DATEV
- A company that needs to show a range of outcomes rather than a single forecast, with uncertainty modelled directly in the driversnot DATEV
- A budget owner outside finance who should adjust hiring or spend assumptions and see the effect without being given edit access to the master spreadsheetnot DATEV
- A group already running Lucanet for consolidation and reporting that wants planning on the same platform rather than a separate toolnot DATEV
DATEV
- A German GmbH that wants its Steuerberater to keep doing the books but wants receipts to stop travelling in a shoeboxnot Causal
- A payroll department that must file social insurance and wage tax returns to German statutory deadlines without an external bureaunot Causal
- An SME preparing an e-Bilanz and audit-ready GoBD document archivenot Causal
- A tax firm standardising dozens of client engagements on one chart of accounts and one document workflownot Causal
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Causal
- Causal was acquired by Lucanet on 31 October 2024 and the independent brand has been retired in favour of Lucanet xP&A, so the roadmap, support and pricing you buy are Lucanet’s and not the ones the product built its reputation on.
- Self-serve pricing is gone: the old causal.app pricing page now redirects to a Lucanet solution page, so what was a transparent product you could sign up for is an enterprise sales conversation with no published rate.
- The variable-based model is a genuine departure from spreadsheet thinking, so an accountant fluent in Excel must relearn how to express a model, and the team members who could previously all edit the forecast often cannot at first.
- Deep Excel compatibility is limited by design; complex existing workbooks with macros, circular references or heavy lookups do not import cleanly and have to be rebuilt, which turns a tool evaluation into a modelling project.
- Consolidation, statutory reporting and multi-entity currency handling are weaker than in dedicated corporate performance management suites, so a group with several legal entities usually needs Lucanet’s other modules alongside it, raising the real cost well past the planning tool alone.
DATEV
- DATEV does not publish transparent per-customer pricing the way a SaaS vendor does; your real cost is buried in your tax adviser's fee note, so comparing it against Lexware or sevdesk on price is genuinely hard.
- The board has decided to wind down the Austria-specific portfolio: existing products remain usable to 31 December 2028, are free of charge during 2029, and cannot be used after 31 December 2029, so any Austrian entity on DATEV has a forced migration dated in advance.
- It is built for German statutory practice, so a group with subsidiaries outside the DACH region will run DATEV for Germany and something else everywhere else, with a consolidation step in between.
- Large parts of the suite are still Windows desktop software installed on a workstation or terminal server, which means IT overhead most companies no longer budget for when they think they are buying cloud accounting.
- The lock-in is social as well as technical: because your adviser holds the installation and the history, changing accounting software usually forces you to change or retrain your adviser, which is a far bigger decision than a software migration.
Pricing, plan by plan
Causal
On request- Lucanet xP&A (formerly Causal)$undefined/year
- Variable-based planning models with dimensions and scenarios
- Actuals integration from accounting, CRM and warehouse sources
- Interactive dashboards for non-finance stakeholders
DATEV
On request- DATEV Unternehmen online$undefined/month
- Receipt and bank data exchange with your tax adviser
- Cash book and master data modules
- Ordered and usually rebilled through the adviser
- DATEV Mittelstand$undefined/month
- In-house financial accounting and invoicing
- Payroll modules licensed separately
- Per-workplace licensing
- Lohn und Gehalt$undefined/month
- German payroll runs and statutory electronic filings
- Priced by number of payslips
- Typically operated by the adviser on the client's behalf
Which should you pick?
Choose Causal if
- You need variable-based modelling.
- You also want dimensional breakdowns.
Choose DATEV if
- You need unternehmen online.
- You work on Windows, Web.
- You also want lohn und gehalt.
Questions people ask
- Is Causal or DATEV better?
- Neither clearly leads. Causal starts at On request and DATEV at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Causal or DATEV?
- Causal starts at On request and DATEV at On request.
- Does Causal or DATEV run on more platforms?
- Causal runs on Web. DATEV runs on Windows, Web.
- What is Causal best used for?
- Causal is most often used for a finance team whose three-statement excel model has become too fragile to change safely before every board meeting, a company that needs to show a range of outcomes rather than a single forecast, with uncertainty modelled directly in the drivers, a budget owner outside finance who should adjust hiring or spend assumptions and see the effect without being given edit access to the master spreadsheet, a group already running lucanet for consolidation and reporting that wants planning on the same platform rather than a separate tool. Of those, a finance team whose three-statement excel model has become too fragile to change safely before every board meeting and a company that needs to show a range of outcomes rather than a single forecast, with uncertainty modelled directly in the drivers are not what DATEV is typically brought in for.
- What can Causal do that DATEV cannot?
- Causal covers Variable-based modelling, Dimensional breakdowns, Scenario and range inputs, Actuals integration. DATEV covers Unternehmen online, Lohn und Gehalt, Rechnungswesen, Jahresabschluss.
Answered from the vendors’ own pages
Causal: Does Causal still exist?
The product does, as Lucanet xP&A. The independent Causal brand and self-serve offering have been retired following the October 2024 acquisition.
DATEV: Can I buy DATEV directly without a tax adviser?
In practice, no for most of the range. Membership of the cooperative is restricted to the tax and legal professions, and companies get access through their adviser or as a client of one.
Causal: What does it cost now?
Nothing is published. The former pricing page redirects to Lucanet, and the product is quoted as part of the Lucanet CFO Solution Platform.
DATEV: Is DATEV usable outside Germany?
It operates in Austria, Italy, Spain, Poland, Czechia, Slovakia and Hungary, but the depth is German. The Austrian product line is being discontinued with a hard end date of 31 December 2029.
Causal: Can I import my existing Excel model?
Simple workbooks import. Models with macros, circular references or heavy lookup chains have to be rebuilt around named variables, which is the real migration cost.
DATEV: What is the DATEV-Schnittstelle everyone mentions?
It is the standard export format German invoicing and ERP tools produce so bookkeeping data can be handed to a DATEV-based adviser. Supporting it is effectively a requirement to sell accounting-adjacent software in Germany.
Causal: Is it a replacement for a consolidation tool?
No. It plans and forecasts. Statutory consolidation and multi-entity reporting sit in Lucanet’s other modules.
DATEV: Does DATEV handle e-invoicing under the German B2B mandate?
Yes, the accounting and invoicing modules were extended for the XRechnung and ZUGFeRD formats that the German B2B e-invoicing rules require.
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