Software that speaks your language.
LeasOne is the lease management software that unifies offer, calculation, leasing contract management, settlement and reporting in one seamless process — built for leasing companies, not retrofitted. Made in Germany.
Leasing software Germany — built for leasing, not adapted
Process logic, calculations, reporting and regulatory requirements are designed from the ground up for leasing companies. No costly customizations, no workarounds — because the business logic is already in the system.
People who understand leasing — not just software
Dedicated contacts who know the difference between a booking logic and a reconciliation error. From implementation through month-end closing to daily operations — directly reachable, technically sound.
GDPR-compliant leasing software — audit-ready without a special project
Role-based access control, defined access concepts and comprehensive server-side logging. Regulatory requirements are systematically covered — not as an add-on, but as part of the architecture.
Your Leasing Process — Digital, Secure and Efficient
Customers & Sales
Central customer management with POS support and external credit checks — fewer duplicates, less coordination effort.
- Central customer data
- POS support
- External credit checks
- Fewer duplicates, less coordination
Customers & Sales
Central customer management with POS support and external credit checks — fewer duplicates, less coordination effort.
- Central customer data
- POS support
- External credit checks
- Fewer duplicates, less coordination
Contracts & Calculation
End-to-end contract lifecycle with pricing models and adjustments — including plausibility checks to reduce errors and rework.
- End-to-end contract lifecycle
- Pricing models & adjustments
- Plausibility checks
- Reduced errors and rework
Administration & Security
Data management with role & permission management and comprehensive logging. Structured processes for internal and external audits.
- Data management
- Role & permission management
- Comprehensive logging
- Audit-ready processes
Reporting & Interfaces
Flexible reporting directly from the database, interfaces and API connectivity. Reports tailored to your needs for CFO, risk management and sales.
- Flexible SQL-based reporting
- Custom reports
- API connectivity
- Direct access to portfolio, margins and maturities — without manual aggregation
Finance & Accounting
Automated sub-ledger accounting, invoices and disbursements — export to systems like DATEV, SAP or Lexware. Month-end closing in significantly less time.
- Automated sub-ledger accounting
- Invoices & disbursements
- Export to DATEV, SAP, Lexware
- Faster month-end closing
Proven in daily operations
Contracts in active operation
From startup phase to high-volume operations — LeasOne scales with your portfolio.
Industry expertise in the system
Experience from dozens of leasing projects — built into process logic, compliance features and consulting expertise.
Integration with Your System Landscape
DATEV
Booking export for handover to your financial accounting
SAP
Export formats for general ledger and sub-ledger integration
Lexware
Data export for smaller accounting environments
CRM
Integrated CRM functions. External systems connectable via REST API
DMS
Document storage in LeasOne or connection to external DMS systems
REST API
Open API for custom integrations and automations
From Practice
Captive of a major automotive group
Over 120,000 contracts, bike leasing at scale
High application volumes with automated individual contract approval based on framework agreements. The system must reliably process thousands of requests without bottlenecks.
Fully automated application pipeline from approval to contract creation. Stable processing even during peak loads. Over 120,000 active contracts in production.
Mid-sized leasing company
Approx. 5,000 active contracts, outdated legacy system
The legacy system was no longer maintainable and could not accommodate new requirements. The system switch had been postponed for years — with growing risk to operations.
Daily business continued without interruption — thanks to structured migration with parallel operation. All contracts and master data fully transferred.
In-house leasing company of an international manufacturer
Market entry in Germany, greenfield setup
As a new leasing company, established processes were missing. IT had to define business workflows from scratch. Traditional legacy systems were too inflexible for a rapid start.
Market entry following the Business Follows IT principle. Our platform provided business processes as a ready-made structure. Rapid go-live without costly custom development.
More than a software implementation.
LeasOne doesn't come as an isolated product. It comes with a team that knows your industry — and supports you from the first requirements analysis through to ongoing operations.
Guidance before the decision
We analyze your existing processes and tell you honestly where LeasOne adds value — and where it doesn't. No sales presentation, but a professional assessment.
Structured implementation
Migration, parallel operation, training, go-live — we manage the project so your daily business doesn't stop. With clear milestones and a team that knows what matters for leasing companies.
Ongoing support
After go-live, we remain available — during month-end closings, audits, regulatory changes or system questions. Personally, not through an anonymous ticket system.
Security and Compliance. Systematically Designed.
Role-based permissions, access concepts, server-side logging. LeasOne is built so that regulatory requirements are structurally covered.
Answers to the Most Important Questions
The standard version is typically productive within 1–3 months — depending on starting situation and data complexity. Custom adaptations follow a structured project approach with clear milestones.
LeasOne offers modern API interfaces. Master data, transaction data and booking information can be transferred to systems like DATEV, SAP, Lexware or your ERP.
All data is stored exclusively in German data centers. Encryption in transit (TLS 1.3) and at rest (AES-256) is standard.
You receive intensive support during implementation and in daily operations — including workshops, training and clearly defined response times.
Every migration goes through multi-stage validations with parallel comparison to the legacy system. We perform a controlled data transfer with quality assurance — including parallel operation until all data is reconciled. No blind cutover.
Role-based training and hands-on workshops ensure your employees work with real scenarios from day one. Key users are specifically trained and can provide internal support as multipliers.
LeasOne uses a clear subscription model: standard license for up to 1,000 contracts and 10 users. Extensions are flexibly possible. No hidden costs — we discuss the full scope before project start.
How does LeasOne fit your processes?
In 30 minutes, we’ll show you what matters for your operations — not everything the software can do.