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LEXinform

datev.de

From €14.80/mo WebWindowsiOSAndroidAPI
Visit datev.de
Spec score 8.5 #4 of 31 in Tax Research Software

What it is

LEXinform is a research database for current tax and business information used in professional advisory work. Its classic collection covers tax laws, administrative guidance, case law, pending proceedings, EU law, practical tools, and other tax materials. Comfort adds information on personnel management, commercial and civil law, EU law, and business administration. Cross-content search returns targeted results ordered by relevance, and the DATEV Wissensplattform can search LEXinform alongside partner databases from NWB and Haufe in one query. LEXinform plus adds LEXchat, which uses AI-assisted research across LEXinform comfort and DATEV Verlagsmedien comfort and provides references to sources. The product page says about 300,000 of roughly 600,000 documents are currently available to LEXchat. DATEV advises checking AI output for suitability, accuracy, and completeness and avoiding entry of sensitive personal or professionally protected data. Protected documents require DATEV SmartLogin or DATEV mIDentity/SmartCard. LEXinform comfort works online on smartphones and tablets as well as in the user's usual DATEV environment. A DATEV Basis-Angebot Zusatzmodul costs €14.80 a month; other listed product prices are not provided.

Spec sheet

What it does
LEXinform is DATEV's research database for tax and business advisory work.Read 15 Oct 2026 · datev.de
Purpose
LEXinform is a research database for current tax and business information for professional advisory work.Read 7 Oct 2026 · datev.de
Support
The product page offers DATEV's service contact and lists telephone support at 0800 3283825.Read 7 Oct 2026 · datev.de
2026 platform news
DATEV says the Wissensplattform is planned to gain AI research functions including LEXchat during 2026, with Help Center integration also planned.Read 15 Oct 2026 · datev.de
Administrative guidance
LEXinform contains administrative instructions and guidance from tax authorities.Read 15 Oct 2026 · datev.de
API governance
Third-party cloud integrations must pass sandbox and production approval, follow interface rules and provide technical request logging.Read 15 Oct 2026 · developer.datev.de
API security model
DATEV's online API guidance specifies OAuth 2.0, OpenID Connect and PKCE, with public SDKs and libraries available for implementation.Read 15 Oct 2026 · developer.datev.de
Audience restriction
LEXinform plus is not approved for DATEV education partners, and learners cannot use it on the education partnership platforms.Read 7 Oct 2026 · datev.de
Authentication
Access to LEXinform's protected document collection requires DATEV SmartLogin or DATEV mIDentity/SmartCard.Read 7 Oct 2026 · datev.de
Case law
Its case-law collection spans Germany's constitutional, federal, labor, social, administrative and fiscal courts and lower instances.Read 15 Oct 2026 · datev.de
Classic coverage
LEXinform classic covers tax laws, administrative guidance, case law, pending proceedings, EU law, practical tools, and other tax materials.Read 7 Oct 2026 · datev.de
Classic scope
LEXinform classic covers current tax-law information and is accessed through the DATEV Wissensplattform.Read 15 Oct 2026 · datev.de
Comfort coverage
LEXinform comfort adds knowledge on personnel management, commercial and civil law, EU law, and business administration.Read 7 Oct 2026 · datev.de
Comfort scope
LEXinform comfort adds personnel management, commercial, civil and EU law plus business-administration content.Read 15 Oct 2026 · datev.de
Company founding
DATEV was founded in Nuremberg on 14 February 1966 by 65 tax consultants as a cooperative self-help organization.Read 15 Oct 2026 · datev.com
Company headquarters and size
DATEV says it is headquartered in Nuremberg, has about 9,000 employees and more than 920,000 customers.Read 15 Oct 2026 · datev.com
Company ownership
DATEV's cooperative structure means the organization says no investor can buy it.Read 15 Oct 2026 · datev.com
Cross-database search
The DATEV Wissensplattform can search LEXinform together with linked NWB and Haufe databases in one query.Read 15 Oct 2026 · datev.de
Developer documentation
DATEV's free Developer Portal documents desktop APIs, online APIs, DATEV formats and the online XML interface.Read 15 Oct 2026 · datev.de
Documentation depth
DATEV provides product help documents, installation aids, system guides and a searchable Help Center alongside its developer documentation.Read 15 Oct 2026 · datev.com
EU and pending matters
The content includes EU law, pending proceedings, commentaries, literature and pending cases.Read 15 Oct 2026 · datev.de
Independent database study
A Technical University of Munich thesis describes LEXinform as a database covering German and international tax, business and civil law plus business-administration material.Read 15 Oct 2026 · cs.cit.tum.de
Independent feature observation
The same thesis records LEXinform search support including highlighted query terms, match counts and parametric or scoped search.Read 15 Oct 2026 · cs.cit.tum.de
Independent professional description
A 2025 professional training guide describes LEXinform as an online database for tax advisers, auditors and related professionals with laws, judgments, administrative orders, commentary and targeted search.Read 15 Oct 2026 · stbverband-thueringen.de
LEXchat
LEXinform plus adds an AI dialogue search that answers questions with references to the sources used.Read 15 Oct 2026 · datev.de
LEXchat coverage
DATEV says about 300,000 of roughly 600,000 documents are currently available to LEXchat, with the corpus being expanded.Read 15 Oct 2026 · datev.de
LEXchat document coverage
The product page says approximately 300,000 of approximately 600,000 documents are currently available for LEXchat research.Read 7 Oct 2026 · datev.de
LEXchat limitation
DATEV requires users to check AI output for suitability, accuracy and completeness before relying on it.Read 15 Oct 2026 · datev.de
Limit: cost and integrations
G2 reviewers cite expensive customer service or licensing and gaps in compatibility with other software.Read 15 Oct 2026 · g2.com
Limit: interface and complexity
G2 repeatedly reports an outdated interface, difficult onboarding, slow login and a complicated user experience.Read 15 Oct 2026 · g2.com
Limit: outages and bugs
Trustpilot reviewers report recurring backend errors, slow screens, outages and frequent bugs.Read 15 Oct 2026 · trustpilot.com
LinkedIn company profile
LinkedIn lists DATEV eG as a software-development partnership founded in 1966 with 5,001–10,000 employees and its primary location in Nuremberg.Read 15 Oct 2026 · linkedin.com
Maker legal name
The product pages identify the provider as DATEV eG.Read 15 Oct 2026 · datev.de
Mobile access
DATEV says LEXinform comfort can be used online on smartphones and tablets as well as in the user's usual DATEV environment.Read 7 Oct 2026 · datev.de
Partner integrations
The DATEV Wissensplattform can search LEXinform and partner databases from NWB and Haufe with one query.Read 7 Oct 2026 · datev.de
Platform access
The Wissensplattform itself is free for DATEV customers, while cross-search requires a LEXinform classic or comfort subscription.Read 15 Oct 2026 · datev.de
Practical aids
Users get contracts, tables, checklists, template objections and standard letters as research aids.Read 15 Oct 2026 · datev.de
Praise: reliability and coverage
G2 reviewers describe DATEV as reliable, accurate, comprehensive and useful for accounting, payroll and reporting.Read 15 Oct 2026 · g2.com
Praise: usability and workflow
G2's review summary says users praise beginner-friendly bookkeeping, direct connections, digital storage and document management.Read 15 Oct 2026 · g2.com
Rating on G2
3.5 out of 5 from 16 reviewsRead 15 Oct 2026 · g2.com
Rating on Trustpilot
1.7 out of 5 from 121 reviewsRead 15 Oct 2026 · trustpilot.com
Reference works
The classic package includes the Lippross basic tax-law commentary, a tax topics lexicon and a tax-criminal-law handbook.Read 15 Oct 2026 · datev.de
Search
LEXinform offers cross-content search with targeted results sorted by relevance.Read 7 Oct 2026 · datev.de
Security claim
DATEV describes its software portfolio as meeting high standards for reliability, data protection and data security.Read 15 Oct 2026 · datev.com
Sensitive-data restriction
The LEXchat terms instruct users not to enter personal, professionally protected or otherwise highly sensitive data.Read 15 Oct 2026 · datev.de
Single sign-on
After partner accounts are linked, searches use LEXinform and partner content without repeated logins.Read 15 Oct 2026 · datev.de
Statutes and regulations
The database includes laws, draft laws, tax guidelines, double-tax treaties and OECD model treaties.Read 15 Oct 2026 · datev.de
System requirements
DATEV publishes hardware checks, PC and server recommendations, supported Windows versions and virtualization guidance for its software.Read 15 Oct 2026 · datev.de
Trustpilot praise
A Trustpilot reviewer says Arbeitnehmer Online provides easy, secure digital salary statements and helpful customer service.Read 15 Oct 2026 · trustpilot.com

Plans and prices

DATEV Basis-Angebot Zusatzmodul LEXinform comfort €14.80 a month Monatlich, ab 14,80 € For DATEV Basis-Angebot users · LEXinform classic is included Read 7 Oct 2026 · datev.de
LEXinform Kommentarpaket Steuern Schäffer-Poeschel €39.14 a month from €39.14 monthly Requires LEXinform classic or comfort · linked tax-law commentaries Read 15 Oct 2026 · datev.de
DATEV LEXinform plus Priced on request 50% discount applied automatically for all of 2026; base LEXinform comfort required Art.-Nr. 65718 · LEXchat AI search · Verlagsmedien comfort included for licensed users Read 15 Oct 2026 · datev.de
LEXinform classic Priced on request Not displayed; order/contact DATEV Art.-Nr. 65680 · tax-law database · DATEV Wissensplattform access Read 15 Oct 2026 · datev.de
LEXinform comfort Priced on request Not displayed; order/contact DATEV Art.-Nr. 65690 · tax, HR, business, civil and EU law · business administration Read 15 Oct 2026 · datev.de

Every LEXinform plan and price →

Strong points and limits

Strong points

  • Classic includes tax laws and case law.
  • Search spans content and sorts by relevance.
  • Partner databases can be queried alongside LEXinform.
  • Comfort works online on smartphones and tablets.
  • LEXchat answers include source references.

Limits

  • Protected documents require DATEV authentication.
  • LEXchat covers about 300,000 of roughly 600,000 documents.
  • DATEV advises checking AI output for accuracy and completeness.
  • LEXinform plus is not approved for DATEV education partners.

Who it suits

LEXinform suits tax and business advisers who need searchable legal, administrative, and business material. LEXinform plus may suit users seeking AI-assisted research, provided they observe DATEV's review and data-entry cautions.

Verdict

LEXinform combines tax research with broader business information, with additional search and AI research options in its DATEV offerings. Check authentication requirements, LEXchat's current document coverage, and the cautions on AI output before relying on it.

Where Specifiction places it

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