What is Invoicing, Expense - and Refund Management
Streamlining Financial Management: Efficient Invoice, Expense & Refund Processing
Financial management encompasses Invoice Management or invoice processing, which involves billing customers for utilized products, services, or time. By employing automation, the invoicing process is enhanced, with mechanisms in place to send automated reminders for unsettled invoices. Expense and refund management, on the other hand, monitors employees' expenditures and can even automate the refund process. Together, these system components offer superior cash flow tracking and provide managers with a comprehensive financial overview.
Expense Tracking
Track, manage and pay expenses, project - or employee based.Credit Notes
Issue and manage Refunds or Credit Notes towards your clients.“ The most customizable solution we found replacing our legacy CRM solution we worked with for too long. ”

Ludomil Lakov
Director of Sales | CANTEKAll the features you need to manage invoices, expenses, and even refunds
Manage your cash flow with all the incoming and outgoing invoices. Get full traceability of invoices and expenses.
Automate the invoicing workflow
Get your invoices paid faster
Make invoices, send the invoices immediately, notify someone overdue, and offer online payments. The invoicing process can even handle multiple currencies and can be connected with your ecommerce.
An additional feature is the "Invoice Merging" - Combine unlimited invoices into a single invoice for easier processing. Automate your payment reminders and customer notifications via eMail, SMS, or custom dashboards.
- Automate your invoicing
- Notify your customers via many channels
- Integrate with ecommerce
- Manage multiple currencies
Trace customer related expenses
Expense Tracking and Expense Management
Track all expenses related to customers, projects, or even tasks. Get a simple expense tracking in place that even handles multicurrency expense management. This integration allows for transparent expense processing and fast billing.
- Track expenses for customers, projects, and tasks
- Multicurrency Expense Management
- Transparent expense tracking
Track refundable expenses for employees
Easily manage allowances and refund your staff
Track all expenses your employees cover and automate the process of refunding. Managing these expenses gets more manageable and even allows for a better overview—set allowances and track expenses of employees with a single dashboard.
- Manage employee allowances
- Track expenses and reimburse them
- Attach invoices to expenses
100% Future Proof
Prepare for upcoming changes in EU E-invoicing legislation
E-Invoice compliance ensures that invoices meet legal and regulatory requirements, safeguarding businesses from penalties and fostering trust in transactions. E-invoicing compliant with EU standards such as PEPPOL, XRechnung, and others streamlines cross-border trade, ensuring seamless digital communication and adherence to local and EU-wide regulations.
- Compliant with European Industry Norm EN 16931
- PEPPOL Compliant
- German X-Rechnung 3.0.1 and ZUGFeRD 2.0 Compliant
Efficiency³ =
SIX ERP² × Simplicity.
The Invoicing Solution leading companies trust
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have been issued by SIX
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We are not SaaS - You own your data!
Own your Invoicing and Expense data
You have your own decoupled pods with all your data. You decide who can access invoice and expense-related data. You own your data - always!
European solution
Trusted solution built with the strict European standards in mind. SIX is built for leading global companies.
GDPR compliant
Be on the safe side when it comes to data compliance. Our GDPR module makes it possible to manage all data without any hassles safely.
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