Blog - Latest articles on time tracking & e-invoices

When your freelancers forget to track time, ZEIT.IO now reminds them automatically — daily, weekly or monthly, configurable per contract. Weekends and absences are skipped, and the email arrives in the recipient's own language.

New in ZEIT.IO: absences. Enter them once — the reminder emails go quiet, the days show up as "Absent" on your timesheet, and every active client is notified by email automatically. Plus calendar links and ICS export.

Billing from Denmark? ZEIT.IO now asks for one detail only: your eight-digit CVR number. The German tax fields and the small business checkbox disappear, the DK prefix for your VAT ID is added automatically, and a VIES miss no longer blocks the save.

Language and date format can now be set per customer, department and contact person. Auto-invoicing and manual invoices apply them automatically, and the introduction and payment terms switch along. Also maintainable via CSV import and REST API.

New in ZEIT.IO: customers, contact persons and departments can now be imported via CSV, matching the familiar export format, with ongoing row-by-row error checks. Import only creates new records — duplicates are skipped automatically.

Excel timesheets now render inline in ZEIT.IO as a clean, locale-aware HTML table across every role and share link — no downloads, no app-switching, wide tables scroll neatly, and parsing stays on our own servers for privacy.

Billing categories in ZEIT.IO now carry your own names: "On site 2" becomes "Frankfurt Data Center" – for hourly and daily rates, freelancers and employees. The names appear on the invoice, already-billed time stays unchanged.

ZEIT.IO now features a "Documents" area, allowing you to centrally store project files like contracts directly where the project lives. It inherits your existing project permissions, accepts files up to 15MB, and fully supports REST API automation.

Bogus self-employment in Germany poses severe financial risks, leading companies to ban freelancers. The article introduces keine-scheinselbststaendigkeit.de, a service offering risk assessments and expert compliance models for safe contracting.

ZEIT.IO automates the entire timesheet approval workflow. Approvers are notified instantly and reminded daily until they decide. Once approved, ZEIT.IO can automatically generate an e-invoice for the client or a credit note for freelancers.

Time tracking is often a legal requirement. ZEIT.IO supports you in managing employee contracts with two features: a configurable maximum duration per time entry and an automatic timer stop in case the user forgets to stop it.

This article explains ZEIT.IO API rate limits—what they are, how they work, and how to handle them—for users connecting tools or automating workflows.

We just shipped a feature that many of you have been asking for: organisations can now upload and manage multiple logo. Here's what changed and how you can make the most of it.

Why ZEIT.IO provides the appropriate PDF notes—despite EN16931 tax codes.

On May 1st, there was an attack on ZEIT.IO's email reputation. An attacker sent an invoice to tens of thousands of recipients.

Upload an order confirmation for a quote and generate an automatic order confirmation. This way you have all the documents together, and the automatic order confirmation saves a lot of time and money.

ZEIT.IO can now automatically assign sequential project numbers. Various formats are available.

(Declining freelancer numbers in Germany and how freelancers, clients, and agencies can reverse this negative trend with CIP.) | Author: Gernot Labs, Founder & CEO of CIP Certified Independent Professional GmbH

With the EmailBrief integration in ZEIT.IO, you can send any invoice as a physical letter with just one click. The invoice is sent directly to Deutsche Post's printing line, printed, enveloped, stamped, and mailed.

AI is powerful, but without rigorous Q&A, it's risky. Models can "hallucinate," spread misinformation, and discriminate through bias. Therefore, thorough quality control is not an optional step, but essential for reliable and safe AI.

At ZEIT.IO, you can now also create and send offers. An offer can be converted into a project and/or an e-invoice with just one click. From offer to e-invoice in just a few seconds!

E-invoices that aren't digitally signed can be easily manipulated without the recipient being able to verify this. Such e-invoices are easy prey for fraudsters who like to swap the bank details on the invoice.

This article highlights the importance of trust alongside performance in employee evaluation. Using the Navy SEALs' "Performance vs. Trust" model, it demonstrates that trustworthiness is crucial for long-term team success.

ZUGFeRD 2.3.3 is available and legally effective as of May 15. Update of the code lists used in EN16931 and update of the CEN validation rules. Rounding inaccuracies in the EXTENDED profile are now permitted.

With the e-invoice mailbox, e-invoices can be received, validated, and visualized. Senders immediately receive a confirmation of receipt along with a validation report. Approved e-invoices can be easily transferred to DATEV.