Tyme Recommends: Invoicing Tools

Tyme focuses on excellent time tracking and for invoicing, you connect it to whichever tool fits your workflow best. Tyme integrates directly with Lexware Office, GrandTotal, Billomat, WISO MeinBüro, sevdesk, and FreshBooks. Here’s everything you need to know.

E-invoicing mandates are rolling out across Europe: mandatory for B2B invoices in Germany since 2025, with more EU countries following. All tools on this page that serve German-speaking markets already support the required formats.

Lexware Office

Available in: Germany

Lexware Office – formerly lexoffice – is particularly popular among self-employed professionals who work with a tax advisor. The DATEV interface is built in, and e-invoices are fully supported. The Tyme export transfers project hours and tasks cleanly for billing.

Best for: Self-employed professionals, freelancers, and small business owners in Germany with DATEV requirements. → Lexware Office

GrandTotal

Available in: EU-wide and internationally (incl. Germany, Austria, Switzerland, Belgium, France, Norway, Portugal, Spain, Italy)

GrandTotal is the native invoicing app for Mac – fast, clean, built for the Apple ecosystem. Supports XRechnung, DATEV export, and is GoBD-compliant. GrandTotal also has its own MCP server, so AI assistants can access both apps directly. Tyme transfers project hours straight to GrandTotal – no CSV files needed.

Best for: Apple users who want a native Mac invoicing app with broad international reach. → GrandTotal

Billomat

Available in: Germany

Billomat is a web-based invoicing tool with a solid API and broad integrations. Straightforward to use, e-invoice compliant, GoBD-certified, with DATEV export and servers based in Germany. Tyme exports hours directly to Billomat.

Best for: Freelancers in Germany who prefer a simple, browser-based invoicing tool. → Billomat

WISO MeinBüro

Available in: Germany

WISO MeinBüro covers invoicing as well as order management, payment reminders, and bookkeeping. The Tyme export transfers work hours directly.

Best for: Self-employed professionals in Germany with more complex business admin needs. → WISO MeinBüro

sevdesk

Available in: Germany, Austria, Switzerland

sevdesk is one of the most widely used accounting tools in the German-speaking world. Write invoices, capture receipts, export to DATEV, give your accountant access – all in one interface. Tyme exports tracked hours directly to sevdesk, turning booked time into a finished invoice in a few clicks. Anyone switching from Harvest will find a complete replacement for the invoicing side – often with more accounting depth.

Best for: Founders and self-employed professionals. → sevdesk

FreshBooks

Available in: International (primarily USA, Canada, UK, Australia, and other English-speaking markets)

FreshBooks is the go-to invoicing tool for freelancers and small businesses in English-speaking markets. Clean interface, professional invoices, online payments including credit card. Tyme transfers tracked hours directly – ready to invoice in a few clicks.

Best for: Freelancers and small businesses who want a simple, internationally oriented invoicing tool with online payment processing. → FreshBooks

More Integrations in the Works

We’re actively working on connecting Tyme with more invoicing tools. Which one is missing for you? Let us know! – Your feedback directly shapes what we build next. In the meantime, many additional tools can be connected via Zapier, n8n, or the Tyme API.

Also Worth Reading:

→ Tyme vs. Harvest – a comparison

→ Switching from Harvest to Tyme

→ All Tyme plugins