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Invoicing: Your guide to efficient bookkeeping!

Challenges and solutions in billing: With this guide, you can optimize your accounting processes.

Tanja Hartmann
Content Marketing Manager
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Invoicing, as an essential part of the accounting system, faces a variety of challenges that accountants face on a daily basis. From the complexity of international transactions to managing incoming payments and automating processes, invoicing presents numerous hurdles that need to be overcome. In this article, you'll learn how to make invoicing efficient and benefit from modern tools.

What is an invoice?

The term “invoicing” comes from Latin (“factora”) and describes the entire process of invoicing. This includes the issuance and recording of invoices as well as the collection of reminders. An invoice can include the following documents:

  • invoices
  • receipts
  • Own documents

This process is part of claims management to ensure appropriate payment for your products or services. The generated invoice serves as the basis for accounting.

❗ Important ❗

Every invoice is an invoice, but not every invoice is an invoice! Because: This can also include other documents such as receipts or personal receipts.

What is the difference between an invoice and an invoice?

The difference between invoicing and invoicing lies primarily in their understanding of the term and how they are used. Invoice is the generic term for the entire invoicing process, while an invoice is a specific document within this process.

What is an invoice number?

An invoice number is a unique identification number that is assigned to a specific invoice, which is why you can also Invoice number is called. It is used to identify the invoice and differentiate it from other invoices.

The billing number is usually assigned by the company and can have different formats and number ranges, depending on business practice. It makes it easier to manage and track invoices for both the company and the customer.

Overview of invoice requirements

The components of a legally correct invoice are Section 14 Paragraph 2 No. 2 of the Sales Tax Act regulated. The following checklist shows you which mandatory information must be included on an invoice:

  • Full name and address of the performing contractor and the service recipient.
  • Tax number or sales tax identification number of the performing entrepreneur.
  • Date of issue of the invoice.
  • Consecutive invoice number to identify the invoice.
  • Quantity and usual commercial description of the delivered items or scope and type of other service.
  • date of delivery or other service.
  • Breakdown fee for delivery or service as well as agreed reductions in remuneration.
  • Applicable tax rate and amount of tax attributable to the fee or reference to tax exemption.
  • Reference to the service recipient's storage obligation (only in certain cases).
  • In the case of credit notes issued by the service recipient or a commissioned third party: “Credit note”.

Create an invoice: These are the benefits of invoicing with ZEP!

Even for experienced companies, managing statements and invoicing be a complex and time-consuming task. ZEP offers you a variety of functions aimed at optimizing your accounting processes and minimizing workload:

  • Efficient billing options: Regardless of whether it's individual or multiple projects for a customer, hourly/daily rate billing or a fixed price, ZEP offers a wide range of options for correctly billing services.
  • Detailed invoicing: Project-specific detailing of your invoices down to individual employees as well as the attachment of precise dates and receipts.
  • Simple invoicing program: Advance payments up to the final invoice and support for incoming credits — ZEP offers a wide range of functions.
  • Scheduling and reminders: Planning of invoicing as soon as the project is created. ZEP also reminds you of expenses that have not yet been billed.
  • Quality control: Four-eye principle for checking and approving invoice items by project management for additional security.
  • Transparent evaluation: Diverse insights such as invoice items, open items, sales forecasts and overall status of the invoice.
  • Adapting to customer needs: Support for various invoice formats, currencies and configuration options such as sending invoices via email or defining payment terms make ZEP flexible and customer-oriented.

If additional functions are required, our ticket system available for efficient communication with customers and employees. Alternatively, you can use the module document management use to organize your documents in a structured way. ZEP also offers a comprehensive solution for Project time tracking as well as an intuitive Software for tracking working time to improve your work processes.

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Conclusion

Invoicing is much more than just an administrative process — it is a key to efficiency in accounting. With modern solutions such as ZEP, you can not only make your invoicing legally secure, but also automate and make it more transparent. An optimized invoice saves time, minimizes errors and creates a solid basis for your finances.

FAQs

What are the challenges of invoicing and how can they be overcome?

Invoicing can become complex due to international transactions, late payments and a lack of automation. Modern software solutions such as ZEP offer features such as automatic billing, reminders and flexible invoice formats, which make these processes more efficient and reduce errors.

Why is the billing number so important and how is it used correctly?

The invoice number is used to uniquely identify an invoice and makes it easier to track and assign incoming payments. It should always be awarded continuously, seamlessly and in accordance with legal requirements.

How can software like ZEP optimize the invoicing process?

ZEP offers automated functions such as billing planning, detailed project documentation and flexible invoice formats. As a result, companies save time, avoid manual errors and ensure legally compliant and transparent accounting.

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