What milia.io does

milia.io (legally milia GmbH, headquartered in Cologne, Germany) is a cloud-based collaboration and workflow automation platform purpose-built for DATEV-compatible German tax advisory firms (Steuerkanzleien). The platform organizes all communication, documents, tasks, and cases by "Vorgang" (client + service + time period), and is tightly integrated with DATEV through six bidirectional interfaces covering DMS, accounting (Rechnungswesen), master data, employee records (Personalakte), DATEV Unternehmen Online, and Meine Steuern. Built-in AI capabilities (milia.AI) leverage the structured DATEV and case context to automate document requests, draft routine correspondence, support internal Q&A via a hosted German GPT alternative, analyze incoming documents, and (in development) execute multi-step AI agent workflows.

The company sells primarily through a sales-led motion with personalized 45-minute expert demos as the conversion mechanism, targeting DATEV-based tax advisory firms of all sizes from boutiques to multi-hundred-employee practices. Pricing is transparent and per-seat plus per-business-client: a base fee of €49/month, €9.90 per employee per month, €2-€4 per business client per month (degressive by volume, with private clients free), plus optional add-ons (milia.AI from €49/month, Mandatsaufnahme digital client onboarding at €99/month for 10 onboardings). The platform serves 200+ accounting firms and 40,000+ users, with case-study evidence showing productivity gains of approximately 6.5 hours per employee per week and onboarding time reductions from 2-4 hours to 15 minutes per client.

Founded in 2021 by Tilman Walch and Michel Menk to bring AI and process automation to the German tax advisory market, milia.io was acquired by Visma in 2025 as part of the European software conglomerate's DACH expansion strategy (its 10th acquisition of 2025 and over 350th overall). The company holds the official DATEV Schnittstellenpartner certification and has received an industry recommendation from the Deutscher Steuerberaterverband e.V. (DStV).

Name

milia.io

Legal name

milia GmbH

Website

https://milia.io

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

milia.io is an AI-powered, DATEV-integrated cloud collaboration and workflow automation platform for German tax advisory firms, currently serving 200+ Kanzleien and 40,000+ users. The company sells via subscription SaaS with per-employee, per-client, and AI add-on pricing.

Ownership category

akta.pro rank

Product category

Tax Practice Management Software

NAICS

Computer Systems Design and Related Services (54151)

SIC

Services-Prepackaged Software (7372), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Asset & Maintenance Management (EAM/CMMS) Platforms (HDAEAEAM)

akta.pro secondary industries

Remote Monitoring & Management (RMM) Services (BPAEABAA), Industrial Automation Software (SCADA, HMI, MES, Historian) (IMAHAHAJ)

Keywords

• Tax advisory software
• DATEV integration platform
• AI workflow automation
• Client collaboration tools
• Tax firm management

Headquarters

HQ city

Bonn

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Subscription SaaS (Platform License): Monthly subscription based on firm size (number of employees) and number of business clients. Private clients are free. Includes full platform access: collaboration, workflow automation, DATEV integration, and AI features.
2. milia.AI Add-on: Optional AI assistant add-on at 49 EUR/month. Provides AI chat, document analysis, automated correspondence, and AI agents for workflow automation.
3. Mandatsaufnahme (Client Onboarding Workflow): Optional add-on at 99 EUR/month. Includes 10 client onboarding workflows per month; additional onboardings at 9.90 EUR each. Covers digital client intake from inquiry through DATEV setup.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

milia.io is a cloud-based SaaS collaboration and workflow automation platform with integrated AI (milia.AI) built specifically for DATEV-compatible German tax advisory firms. It centralizes client communication, document exchange, task management, and e-signature, and connects to DATEV through 6 bidirectional interfaces covering DMS, accounting, master data, personnel files, Unternehmen Online, and Meine Steuern. The platform saves an average of 6.5 hours per employee per week and is sold on a per-employee and per-business-client subscription basis with optional AI and client onboarding add-ons.

Differentiator

Problem solved

Functional benefit

Brands

• milia.AI: AI assistant integrated into the milia.io platform that provides document analysis, letter drafting, and automated process capabilities for tax advisory firms.
• Taxy.io

Products and services

• milia.io Platform Cloud-based SaaS collaboration and workflow automation platform for DATEV-compatible German tax advisory firms. Centralizes client communication, document exchange, tasks, e-signature and DATEV-integrated case management via 6 bidirectional DATEV interfaces. Sold on a per-employee and per-business-client subscription with a base platform fee.
• milia.AI Optional AI assistant add-on for the milia.io platform providing AI chat, document analysis, automated correspondence and AI-agent-driven workflows for tax advisory firms. Priced at 49 EUR/month on top of the base platform subscription.
• Mandatsaufnahme (Client Onboarding Add-on) Optional subscription add-on that automates digital client onboarding for tax advisory firms, from initial inquiry through DATEV setup. Includes 10 onboarding workflows per month; additional onboardings billed at 9.90 EUR each. Reduces typical client onboarding from 2-4 hours to roughly 15 minutes per client.
• Taxy.io AI-powered tax advisory tool integrated into the milia.io platform. Uses AI trained on German tax law to answer specialist tax questions and support advisory work; reportedly has passed the official German tax advisor exam.

Quantifiable outcome

• 6.5 hours saved per employee per week (based on 50+ firm survey)
• +3 more outcomes

Named customers10 records

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability9 records

Feature6 records

Partnerships

Three partnerships are on record, tiered core.

• DATEVcoreTechnology or IntegrationOfficial DATEV-Schnittstellenpartner with 6 bidirectional integrations covering: master data, accounting (Rechnungswesen), DMS/document management, employee records (Personalakte), DATEV Unternehmen Online, and Meine Steuern. The deepest DATEV integration in the collaboration platform market.
• tax&bytescoreStrategic or Co-development PartnerStrategic partnership for transparency in the transformation of tax advisory. Both companies advocate for open, modular architecture in tax firm technology, resisting vendor lock-in. Joint content and thought leadership on digital transformation in the tax industry.
• DocuSigncoreTechnology or IntegrationIntegrated e-signature provider for legally compliant digital signatures (eIDAS compliant). 100 free envelopes per year included with platform. Signed documents automatically archive back to DATEV DMS.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Emerging players

• Karbon: Karbon is a workflow and practice management platform for accounting firms, primarily serving English-speaking markets. While not DATEV-integrated, it competes with milia.io on the workflow-automation and collaboration value proposition.
• TaxDome: TaxDome is an emerging international practice management platform for accounting and tax firms, offering client portals, workflow automation, and document management. It competes for the same workflow and collaboration use case internationally, though it lacks milia.io's DATEV-specific depth.

Broad incumbents

• DATEV: DATEV is the dominant German tax/accounting software platform used by the majority of Kanzleien. While milia.io is a partner/integrator of DATEV, DATEV's own myDATEV offering competes directly with milia.io as a collaboration platform. DATEV also controls the API access that milia.io depends on, making it simultaneously partner and competitor.
• Lexware: Lexware is a major German SMB accounting and tax software provider (Haufe Group). While primarily targeting small businesses rather than Kanzleien, Lexware's broader portfolio overlaps with milia.io's downstream client base.
• myDATEV: myDATEV is DATEV's own client portal and collaboration offering, bundled with DATEV subscriptions. As DATEV's first-party solution, it competes with milia.io for the same Mandantenkommunikation use case but with the structural advantage of native platform bundling.
• agenda Planer: agenda Planer is an established practice management and DATEV-integrated solution for German tax and accounting firms. It competes in the Kanzleiorganisation category with broader feature scope including calendaring, project management, and HR.

Direct peers

• Steuerboard: Steuerboard is a direct competitor offering workflow and collaboration tools for German Steuerberater. It is explicitly listed in milia.io's provider comparison as an alternative for DATEV-compatible firms.
• Taxy.io: Taxy.io is an AI-powered tax advisory tool that, like milia.io, was acquired by Visma in 2025 as part of Visma's DACH TaxTech consolidation strategy. Both are now sister companies under Visma with overlapping AI-for-tax-advisory positioning.
• Kanzlei.Land: Kanzlei.Land is another directly competing Kanzlei collaboration platform targeting DATEV-based German tax advisory firms. It appears in milia.io's competitive comparison, competing for the same customer segment with similar collaboration, document management, and workflow features.
• KanzleiDrive: KanzleiDrive is a directly competing collaboration and workflow platform for German tax advisory firms. It is explicitly named in milia.io's own Anbietervergleich (provider comparison) page, indicating head-to-head competition for DATEV-compatible Kanzleien.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/miliaio
• LinkedInlinkedin.com/company/milia-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about milia.io