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Connect cashwerk CRM & project management with sevDesk financial accounting. Automatic data exchange via API.
Trusted by leading companies
Everything you need to work more efficiently.
Invoices, contacts, and receipts are automatically synchronized between cashwerk and sevDesk.
Invoices created in cashwerk are automatically transferred to sevDesk – for financial accounting and your tax advisor.
CRM contacts from cashwerk are created as customers in sevDesk and updated when changes occur.
Automate data flow via n8n nodes and webhooks – without manual intervention.
Operational data from cashwerk and financial data from sevDesk provide a complete business picture.
The native API connection ensures data flows in real-time and securely between both systems.
cashwerk is the operational platform for CRM, projects, and time tracking. sevDesk is the financial accounting for tax advisors and authorities. Together, they cover the entire business process.
Many companies face the choice: all-in-one platform or specialized individual tools? With the cashwerk-sevDesk integration, you don't have to choose. cashwerk handles the operational side – CRM with contact management and sales pipeline, project management with Kanban boards, time tracking with GPS, and quote creation. sevDesk handles financial accounting – income statements, receipt capture, banking integration, and DATEV export for the tax advisor.
Automatic data flow eliminates double work: when you create an invoice in cashwerk, it's automatically transferred to sevDesk. Contact data is synced so your tax advisor always sees the current customer master data. Via n8n workflows, you can individually control the process – for example, only sync above a certain invoice amount or automatically categorize receipts.
In daily practice, this means: your operational team works in cashwerk – managing customers, steering projects, tracking time, and writing invoices. The accounting team works with sevDesk – assigning receipts, creating income statements, and preparing the DATEV export. Both worlds are seamlessly connected via API, without anyone manually transferring data.
The integration is GDPR-compliant: both systems are operated on German servers, and data exchange occurs via encrypted API connections. Your business data stays in Germany and is subject to German data protection law – a decisive advantage for companies working with sensitive customer and financial data.
From customer contact to financial accounting – automatically connected.
Create the contact in cashwerk CRM. Master data is automatically synced to sevDesk.
Manage projects and track working hours in cashwerk. Everything is documented.
Create the invoice in cashwerk – from project time tracking, quote, or manually.
The invoice is transferred to sevDesk via API – with contact data, line items, and tax rates.
Your accountant assigns receipts, creates the income statement, and exports to DATEV.
Seamlessly integrated modules for your complete workflow.
cashwerk transfers invoices, contacts, and receipt data via the sevDesk API. The connection is configured in cashwerk settings under Integrations. You can control automatic data exchange individually via n8n workflows.
Primarily invoices, quotes, contact data, and company information. cashwerk provides operational business data, sevDesk handles financial accounting, income statements, and DATEV export.
Navigate to Settings > Integrations > sevDesk in cashwerk. Enter your sevDesk API token and select which data should be synchronized. Setup takes just a few minutes.
The sevDesk integration is included in all cashwerk plans from Business tier. You additionally need an active sevDesk account with API access.
“Scalable and the installation support was very helpful. We now save 6 hours per week on administration. Great service, great price-performance ratio!”
Brigitte B.
Managing Director, B&B Consulting
5–15 employees · Management Consulting
“Finally, we have a central platform where we can efficiently manage projects, finances, customers, and documents. 3 tools replaced, 12 hours saved per week.”
Tamara Z.
Project Lead, Creative Digital Agency
20–50 employees · Digital Agency
“I can unreservedly recommend working with cashwerk GmbH. From the first contact, the team impressed me with their extraordinary professionalism and transparency.”
Gabor N.
Senior Consultant, NovaTech IT Consulting
10–30 employees · IT Consulting
“cashwerk has completely changed our work. Before, we used 3 different tools, now everything is in one place. The AI assistant saves us at least one hour every day.”
Marcus S.
Managing Director, Digital Agency Munich
15–40 employees · Digital Agency
“The time savings are enormous – 8 hours per week. What used to take hours, we now complete in minutes. The automatic invoice creation from time tracking is worth its weight in gold.”
Thomas K.
IT Consultant, TechSolutions GmbH
10–25 employees · IT Services
“As a freelancer, I always had trouble keeping track of projects, times, and invoices. With cashwerk, that's history. Absolute recommendation!”
Michael B.
Freelance Developer, Independent
1 person · Software Development
“Since we started using cashwerk for our CRM, our close rate has improved by 34%. The sales pipeline instantly shows where every deal stands – no leads slip through the cracks anymore.”
Sandra L.
Head of Sales, ProVenture GmbH
30–80 employees · B2B Sales
“GoBD-compliant invoicing has revolutionized our accounting. Invoices from time entries in seconds – our tax advisor is thrilled. 15 hours saved per month.”
Dr. Petra W.
Tax Advisor & Managing Director, WestTax Tax Consulting
5–12 employees · Tax Consulting
“With the Kanban view and integrated time tracking, our project managers finally have full transparency. We've reduced budget overruns by 60%.”
Jan H.
CTO, Bytecraft Studios
25–60 employees · Software Development
“Our sales team now books customer appointments directly through cashwerk Booking – no more back-and-forth emails. No-show rate dropped 40% thanks to automatic reminders.”
Katrin M.
Sales Director, SunPower Solar Technology
15–40 employees · Renewable Energy
Avoid resource waste caused by outdated processes. Our strategy guide shows you how to automate operational workflows and sustainably optimize your cash flow.
Developed & hosted in Germany
Fully data protection compliant
Servers only in Germany
Sustainable & responsible
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