Cassandra Tax & Legal AI

5.9easy start · #23of 31
in Tax Research Software

Free to practise onno
Well documentedyes
Runs where you workno

Runs on Web. Paid plans from $45/mo.

Cassandra Tax & Legal AI is ranked #23 of 31 in tax research software on The Geeks Club. It runs on Web. There is no free plan. Paid plans start at $45/mo.

Cassandra Tax & Legal AI plans and pricing

All plans

Cassandra Pro $45/mo + GST · AUD 25+ jurisdictions · 100+ tools · unlimited PDF/DOCX analysis · 24/7 priority support cassandra-research.com · 1 Oct 2026

Cassandra Plus $99/mo + GST · AUD Everything in Pro · 50% better performance · higher document throughput · extended context · priority queue cassandra-research.com · 1 Oct 2026

Enterprise Pro benefits · dedicated priority support · customizable features · stronger engines cassandra-research.com · 1 Oct 2026

Compared on tax research software

Free plan: No
Case law database: Yes
Current law updates: Yes
AI research tools: Yes
Citation export: Yes
Platform: web

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The record

Purpose: Cassandra is an AI-powered platform for tax and legal research used by accountants, tax agents and lawyers.
Tax research: The AI tax research engine is grounded in ITAA 1997, ITAA 1936, the GST Act, ATO rulings and Australian court decisions, with citations in every answer.
Legal research: The platform provides AI legal research across Australian contract, tort, property and regulatory law.
Document tools: Users can upload and analyze unlimited PDF and DOCX documents and export client memos to PDF or Word.
Drafting: Features include automated tax opinion generation, legal memo writing and client email composition.
Updates: Content is continuously updated for new ATO guidance, legislative amendments and Federal Court decisions.
Expert review: Tax and legal content is reviewed by Australian tax agents, chartered accountants and practicing lawyers.
Security: Cassandra states that it uses zero-log architecture, TLS 1.3 in transit, AES-256 at rest, role-based access, immutable audit trails and tenant isolation.
Privacy compliance: The company states that its client-data handling is designed around the Australian Privacy Principles and that it is Privacy Act 1988 compliant.
Integrations: The Cassandra Suite division lists Microsoft and Xero integration.
Support: The Pro plan includes priority technical support available 24/7.
Eligibility: Access to Cassandra tax products is restricted to registered tax agents, registered BAS agents where relevant, Australian legal practitioners and other approved trained professionals.
Output limitation: All outputs are preliminary software-generated outputs that must be independently reviewed, verified and approved by a suitably qualified professional before use.
Headquarters: Melbourne, Victoria, Australia
Price from: $45/mo

Where it ranks on The Geeks Club

Best Tax Research Software in 2026#23 of 31

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Sources

cassandra-research.com· checked 1 Oct 2026
cassandra-research.com/legal· checked 1 Oct 2026
cassandra-research.com/pricing· checked 1 Oct 2026
cassandra-research.com/professional-services-disclaimer· checked 1 Oct 2026