Client questions about deadlines, documents, appointments. Your agent provides answers.
Clients ask about deadlines, required documents, or meeting times. Your agent answers standard questions, books appointments, and takes callback requests. Your team focuses on the cases.
by Sven Pflüger · Founder & CEO, Rinqo·Last updated:
Notice under EU AI Act Article 50:On the first ring, the agent says clearly: you're talking to an AI. Just ask, and the agent connects you to a human.How we use AI
What does the AI phone assistant do for Tax Advisors?
The AI phone assistant for tax advisory firms answers general client questions about filing deadlines, required documents, and appointments, books consultations via calendar tools like Cal.com and captures callback requests in a structured way, individual tax consulting remains exclusively reserved for licensed professionals.
EU-Sovereign · GDPR · AI Act
Made in Germany. Hosted in Europe. AI-Act-ready before the deadline.
GDPR-compliant on EU servers
All calls, transcripts and knowledge data are processed encrypted on Hetzner Cloud in Falkenstein and Nuremberg, no US Cloud Act exposure, no third-country transfer. DPA in place.
LLM inference: Microsoft Azure OpenAI Service (Microsoft Ireland, Sweden Central, EU Data Boundary) as single-AI backbone — OVHcloud as opt-in Pure-EU failover
Speech: Deepgram in EU setup + KugelAudio (German company, EU-hosted)
Auto-deletion after 30/90 days, configurable per org
AI Act Art. 50, implemented before 2 Aug 2026
From 2 August 2026 every AI system must disclose to end users at the start of the conversation that it is AI-based. Rinqo enables this by default everywhere, before the deadline, not after.
Voice: mandatory disclosure as first audio frame, before any answer
Chat/Email: AI label in footer and subject
Synthetic audio will be machine-watermarked once Code-of-Practice (June 2026) ships
Penalty: up to €15M or 3 % global annual turnover (whichever is higher)
Sources: GDPR Art. 28 + 32 · EU AI Act Regulation 2024/1689 · BfDI guidelines.
Why Tax Advisors need an AI agent.
Tax advisory firms have seasonal peaks: before filing deadlines, the phone rings nonstop. Clients want to know which documents they need, when the deadline is, or when their assessment will be ready. The staff is working on complex tax returns and can't keep answering the phone.
Before filing deadlines (July 31, February 28), call volume explodes
Clients repeatedly ask the same questions about deadlines and documents
Staff members lose focus through constant interruptions
Professional secrecy rules (§ 57 StBerG) forbid offshore outsourcing
“
In the two weeks before the extension deadline, we don't process anything anymore, we just take calls. And we still miss every third one.
How the Phone Agent for Tax Advisors.
Your agent answers questions about current deadlines, required documents, and the status of tax returns. It books consultation appointments and takes callback requests. Complex tax questions are routed to the responsible staff member.
Rinqo picks up every call. At night, on weekends, always.
Why Rinqo for tax firms, three hard facts on StBerG, GDPR and deadline peak load.
A tax firm chooses a phone system not by UX but by three lines: professional confidentiality per § 57 StBerG, data processing per Art. 28 GDPR, and whether the system can handle the seasonal peaks before 31 July and 28 February. Anyone using AI phone assistance for the firm in DACH must fully meet these three requirements.
§ 57 StBerG + Art. 28 GDPR
Tax advisor confidentiality stays, contractually and technically.
Rinqo runs as data processor per Art. 28 GDPR on Hetzner servers in Falkenstein and Nuremberg. DPA is part of every plan and electronically signable, firm documents outsourcing StBerG-compliant. Client calls are end-to-end encrypted, client data doesn't leave EU Hetzner VLAN. No US cloud, no Cloud Act exposure. Federal Tax Advisor Chamber clarification 2024: outsourcing of secretarial tasks to EU data processors with DPA is permissible per § 57 StBerG.
Before 31 July call volume explodes 3x, agent scales with it.
Tax firms have two hard peaks per year: the two weeks before 31 July (income tax) and 28 February (payroll tax filing) bring 3x higher call volume per BStBK statistics 2024. With human secretariat: either weeks of overtime or client requests slip into voicemail. Rinqo scales in parallel, whether 50 or 500 calls per day come in, each is answered. 80% of pre-deadline requests are routine: Which documents do I need? When is extension deadline? When is my notice ready? These are answered autonomously by agent, case workers see only client-specific escalations.
Transparency obligation fulfilled, before clients ask.
From 02 August 2026 EU AI Regulation Article 50 requires clients on phone to clearly recognize they're talking to AI. At tax firms doubly sensitive: clients expect professional diligence, undeclared AI use is perceived as breach of trust. Rinqo provides disclosure by default at start of each call ("This is the digital assistant of Tax Firm Müller, I am an AI"). Wording is editable, disclosure cannot be turned off. Fines: up to €15M.
Audio disclosure per call · Wording editable · Fine protection up to €15M
Rinqo vs. classic solutions for tax firms.
Tax firms compare three options: full-time secretariat, external phone service with per-call billing, or answering machine. Honest overview.
Feature
Rinqo
from €99 net/mo
Full-time secretariat
internal
External phone service
billed per call
Answering machine
Classic
Catch deadline peak (3x volume)
Scales to 500+/day parallel
Personnel bottleneck
Per-call costs explode
StBerG §57-compliant (confidentiality)
DPA incl., BStBK-compliant
Professional supervision
DPA with secretariat contract
Local
Monthly cost at 65 calls/week
€99-€349 flat
€3,500-€4,500 gross
€400-€800 per-call
€0
AI Act Art. 50 disclosure
Auto & editable
,
,
,
Structured client triage
Request + urgency
Manual
Generic script
Full-time secretariat delivers professional supervision but costs factor 30+ more and capitulates before deadline peaks. External phone services swallow peaks but per-call costs explode with volume. Answering machine is conversion killer. Rinqo is the solution for firms with seasonally fluctuating volume, BStBK compliance and predictable flat pricing wish.
What your agent does for Tax Advisors.
Deadline information
Communicating required documents
Appointment booking
Taking callback requests
Communicating availability
Features of the Phone Agent
Answers common questions automatically
Books appointments directly in your calendar
Qualifies inquiries and captures contact details
Routes complex cases to your team
Speaks 20+ languages
Learns from your website and documents
Honest answers to real concerns.
The four questions every practice owner asks us before they start.
Is the agent even allowed to speak with clients? Professional secrecy?
Yes, as long as data processing meets the professional obligations under § 57 StBerG. Rinqo runs on EU servers, processes data under contract per Art. 28 GDPR, and shares no client-related content with third parties.
What if the agent gives incorrect tax information?
The agent provides no tax advice, only general information you've marked as "shareable". Any individual question is routed to the licensed professional.
Can we import call protocols into the client file?
Yes. Every call is exported as transcript and summary. Filing into your firm software (DATEV, Addison, etc.) happens manually or via webhook.
Frequently asked questions about the Phone Agent for your industry Tax Advisors.
The agent answers general questions about deadlines, documents, and processes. Individual tax advice is routed to the responsible staff member. This is not tax consultation.
You maintain the deadlines in the knowledge base. When something changes, you update it once, and the agent responds correctly right away.
Yes. The logic is the same: answering questions about deadlines, documents, and appointments. You adapt the knowledge base to your offering.
Multi-channel for your industry
Rinqo for Tax Advisors, all channels
Telephone, chat and email from one platform: business case, ROI, GDPR and integrations.
Sven builds Rinqo from a simple observation: most AI tools are designed in San Francisco and sold in Berlin. The workshop in the Black Forest, the veterinary practice in Salzburg, the family hotel in Tyrol get software that doesn't speak their language. Rinqo flips that. On European servers, set up in ten minutes, in twenty languages. With templates built by the industries themselves.
