For tax advisors and their clients

Your staff aretoo expensive for chasing down receipts.

MandantLink handles your month-end close.

GDPR compliant
EU hosting
DATEV & ADDISON export
GoBD verified
3 steps, zero hassle

How your month-end close works

1

Collect

Bank statements and credit card bills are pulled automatically. Receipts from online portals too. Whatever is there gets checked off immediately.

2

Follow up

Missing receipts or unclear details trigger an automatic email to the client. The conversation continues until everything is resolved.

3

Hand off

All receipts complete? MandantLink delivers them automatically to DATEV, ADDISON, or Lexware. You always see what's still open.

One-time setup. After that, everything runs automatically.

Before: The firm emails the client. The client doesn't reply. The firm sends a reminder. A week goes by.

Today MandantLink handles it — fully automatically.

Every bank transaction gets a status. Whatever can be collected automatically is checked off right away. The rest goes to the client by email — with automatic reminders until everything is in. The firm no longer has to chase.

What you get

Built for tax advisors

80% less effort collecting documents

No more manual follow-ups. Your team focuses on real advisory work.

GoBD compliant

Every receipt is checked against GoBD mandatory fields. Audit-proof logging included.

Receipts straight from the source

Connect online portals once. MandantLink pulls receipts every month automatically.

Precise follow-up questions

Every message tailored to the specific issue. You define the tone.

You stay in control

No automation without approval. You review and confirm with one click.

Automatic handoff to your software

Complete receipts go automatically to DATEV, ADDISON, or Lexware. No manual export.

Privacy & compliance

Your data never leaves the EU.

§203 StGB

MandantLink is built for the stricter requirements of tax advisors — not the mass market.

Servers in the EU

All data on European servers. No US cloud provider has access.

GDPR-compliant AI

AI processing on certified EU infrastructure. Client data stays in the European legal framework.

GDPR compliant
EU hosting
DATEV & ADDISON
GoBD verified

Reference project

DVS AG

4M+

receipts processed

Our team built an AI-powered receipt analysis for Deutsche Verrechnungsstelle AG GDPR compliant, running in production. Read case study

Working with Artesiana was very positive for us. We were especially impressed by how quickly a productive system came together and how flexibly the team responded to feedback.

Sven Ries

CEO, Deutsche Verrechnungsstelle AG

Who's behind it

Leo Naderi

Co-Founder

Freelancer since 16. BSc TU Darmstadt, MSc TU Berlin. Builds the technical infrastructure behind MandantLink: APIs, pipelines, agents.

LinkedIn →

Luca Zacharias

Co-Founder

Top graduate, TU Munich. ETH Zurich. Has spent over a year working with tax firms on automating receipt workflows.

LinkedIn →

Artesiana UG (haftungsbeschränkt) · Mainz · HRB 54012

Become a pilot partner

Try MandantLink free with 1–2 clients. In 15 minutes we'll show you the automated monthly workflow for your firm.

Pick a time

Stay in the loop

Sounds interesting but no time right now? We'll notify you when MandantLink is available for every firm.

Join waitlist