ISO 27001:2022 certifiedDATEV integration+100 years payroll experience

Payroll in your firm. Without the friction.

Keep your existing processes and DATEV setup. project b. adds structured client data intake, AI review, and a white-label portal, so your team spends less time chasing and more time on real work.

Fewer follow-ups. Fewer late evenings. More satisfied clients.

+100 Years

Payroll experience on our team

<5 Days

to your first payroll run

ISO27001

Certified information security

GDPR

Data in EU data centers

"Payroll is not where we make money."

"Clients send data late and still expect it to be right."

"My payroll team is at capacity. But the work keeps coming."

If any of this sounds familiar, you are in the right place.

Where firm payroll keeps breaking down

Manual work and fragmented workflows

Data arrives via email, fax, Excel, and phone. Preparing it consumes time that should go to client service.

Constant back-and-forth with clients

Missing documents, late replies, follow-up questions on every payroll run. It costs nerves and money.

Overloaded team and talent shortage

Experienced payroll specialists are hard to find. New hires take months to become productive. The team runs at capacity.

Growth without profitability

More clients means more workload. Margin per client drops because labor costs outgrow revenue.

Two ways to better firm payroll

Whether you want to keep control or hand it off entirely.

Platform

Keep payroll. Gain efficiency.

  • Clients deliver data digitally and structured
  • RITA reviews, sorts, and prepares everything
  • Seamless DATEV integration
  • Your team invoices as usual, just faster

Outsourcing

Hand off payroll. Keep the client.

  • Full payroll run handled by project b.
  • Client relationship stays with your firm
  • Dedicated contact for your practice
  • Clients get a self-service portal for payslips and certificates
  • ISO 27001 certified and GDPR compliant
  • Access to relevant accounting data stays with you

What you and your clients actually see

project b. layers a clean digital surface on top of your DATEV workflow: for your Lohnbuchhalter, your Mandante, and their employees.

Employees
Mark MustermannID 0001
First payrollMissing data
Master dataEmploymentPaymentsDocuments

Client portal

Your Mandante deliver master data structured and on time. No more email chasing.

RITA-Assistent
Here is a salary change for Marius Möller:
Marius MöllerID: 0032
Salary / Wage
3100,00 €3299,00 €
ApplyCancelEdit

RITA, the AI reviewer

Validates completeness, flags inconsistencies, and structures messy client input, before it hits DATEV.

September: Data still missing
Due: 24/09/2025
Submit September
2 New contracts
1 Ending contract
3 Absences
8 Data changes

Structured data intake

Salary changes, new hires, absences: captured in one place and ready for clean export to DATEV.

5 pending requests
Review
3 approved absences
Complete
AbsencesAdd absence

Absence management

Vacation, sick leave, and special times: tracked once, fed cleanly into every Mandant payroll cycle.

Contracts & certificates
2 documents
04.03.2024
15:58
Filings & taxes
4 documents
16.02.2025
09:14
Other
No documents
Payslips
4 documents
04.05.2025
12:12
New payslip

Payslip distribution

Encrypted delivery to every employee at every Mandant. No more PDFs by email.

2025_01_YW_Lohnabrechnung.pdfJanuary 2025Payslip
2024_01_YW_Lohnabrechnung.pdfJanuary 2025Payslip
Endgültiger_Arbeitsvertrag.pdfFebruary 2025Contract
Arbeitserlaubnis.pdfMarch 2025Work permit
HR-Admin

Change log

Every adjustment per Mandant auditable. Compliance and visibility for your firm, without anyone chasing it.

How project b. lands in your firm

Platform onboarding in days, outsourcing transition in weeks. Both predictable.

Platform onboarding

1

Day 1

Kickoff & data sync

We review your DATEV setup with you, identify the first Mandate to bring on, and sync existing data. No migration headache.

2

Day 5

Your team is trained

We work hands-on with your Lohnbuchhalter. The first Mandant goes live. Your team uses project b. alongside DATEV, exactly as before, just faster.

3

Month 1+

Phased client rollout

Each Mandant joins on their own pace: full portal, lightweight email-only, or full outsourcing. You pick the model per client.

Outsourcing transition

1

Week 1

Discovery call

In a focused conversation we clarify which Mandate will move over and define the timeline together.

2

Week 2 to 3

Mandant onboarding

We support the client communication, explain the process, and answer every follow-up question.

3

Week 4 to 6

Data takeover

Through the project b. platform we ensure a seamless transition: secure data takeover, process setup, and coordination of everyone involved.

4

Week 7+

Roll-out & support

After roll-out we serve your Mandate directly and run their operational payroll. Your long-term access to booking documents is guaranteed.

What changes for your firm

With the platform

Fewer follow-ups

Clients deliver data structured and complete. RITA automatically checks for completeness and flags missing items.

Payroll becomes profitable

Less manual work per client means the same revenue for significantly less effort.

DATEV stays DATEV

project b. complements your existing system. No migration, no parallel processes.

Team gets breathing room

Routine tasks are automated. Your team can focus on complex cases and real advisory work.

With outsourcing

Relief from day-to-day operations

Hand off operational payroll processing, including authority communications, and reclaim valuable time.

Predictability & scalability

Structured processes without staffing risk. Scales with growing payroll volume, even without new hires.

Legal certainty & quality

Experienced payroll specialists guarantee top quality. Our infrastructure is GDPR-compliant and ISO-certified.

What your clients get

A personal contact

We give your clients a fixed point of contact who handles every request and ensures personalised service, without disrupting your relationship.

Sector expertise

Our payroll specialists know the specific demands from construction to the public sector. We engage thoughtfully with individual special cases and companies of every size.

The project b. team

Built by payroll experts who lived your problem

We've run a payroll bureau ourselves, built ITSG-certified software, and seen exactly where firm payroll breaks down. Our team brings 100+ years of combined payroll experience.

When you put your Mandante's payroll on project b., you're working with people who understand a Steuerberater's world from the inside. Not a black box.

ISO 27001:2022GDPR compliantEU data centers

Frequently asked questions

How is this different from DATEV alone?

DATEV stays your payroll system. project b. is the layer in front of DATEV: structured client data intake, AI review, and a client-facing portal. We feed clean, validated data into your existing DATEV setup. No migration, no parallel processes.

Will my Lohnbuchhalter actually adopt this?

The interface is built with Lohnbuchhalter, not for them. Workflows mirror how they already work, just with the chasing taken out. Onboarding includes hands-on time with your team. Most firms see their senior staff become the strongest advocates within a few weeks.

What if a Mandant won't go fully digital?

We support multiple collaboration models per Mandant. Some clients use the full portal; others just send data by email and RITA structures it. You pick the right level for each Mandant. No client gets forced into something they resist.

Can I outsource only some Mandate to project b.?

Yes. The Platform path and the Outsourcing path can mix freely. Keep payroll in-house for the Mandate where it makes sense, hand off the ones where the margin or the load makes outsourcing the better choice.

What does project b. cost?

Pricing scales with active employees across your Mandant book: transparent, predictable, no setup fees. Get in touch and we will quote you specifically based on your firm size and the client mix.

How secure is my clients' data?

project b. is ISO 27001:2022 certified and fully GDPR compliant. All data is encrypted at rest and in transit, and stored exclusively in EU data centers.

Rethink payroll in your firm

Platform or outsourcing: find the right fit in a 30-minute demo.