Citations you can open
Every answer links to the primary authority. Click any citation to read the full text in-line and in the Tax Library to verify your positions.
Marble vs. BIZORA
Bizora is an AI-powered tax research platform focused on helping professionals research tax issues, analyze documents, and draft content.
Marble is a SOC 2 Type II certified tax workflow platform that connects AI-powered research directly to Clients, Projects, Work Products, tax documents, and client deliverables. Instead of stopping at research, Marble helps firms manage the entire engagement—from research and review through the final client deliverable.
The short answer
Both platforms are AI native and use AI to help tax professionals research tax issues, analyze documents, and draft work products. The difference is what they organize.
Bizora organizes AI conversations, documents, and drafting.
Marble organizes the entire tax engagement. Every research question, supporting authority, tax document, work product, and client deliverable stays connected through Clients, Projects, and Work Products, creating a complete record from initial research to final client work. Marble also includes a fully integrated Tax Library with federal and state primary authorities, allowing professionals to verify citations, review source material, and highlight relevant content without leaving the application.
Last updated: August 2026
Side by side
Bizora helps you research. Marble helps you run the engagement.
| Capability |  | Bizora |
|---|---|---|
| Ask tax questions in plain English | ✓ Yes | ✓ Yes |
| Citation-backed answers | ✓ Yes | ✓ Yes (via external web sources) |
| Integrated tax library with content highlighting | ✓ Yes | No |
| International Tax | No | Limited (OECD and EU VAT) |
| Client and project management | ✓ Yes | Limited (Vault) |
| Federal + all 50 states coverage | ✓ Yes | ✓ Yes |
| Work Product Management | ✓ Yes | ✓ Yes (via Canvas) |
| API and MCP Support | Limited (API Only) | ✓ Yes |
| SOC 2 Type II Audited and Certified | ✓ Yes | No |
| Intake with Tax Document Processing | ✓ Yes | - |
| Transparent self-serve pricing | Free plan, Pro for $600/year ($59/month) | Essentials 29.99/month Pro 69.99/month |
Why firms switch
Every answer links to the primary authority. Click any citation to read the full text in-line and in the Tax Library to verify your positions.
SOC 2 Type II, encrypted in transit and at rest. Your client data is isolated and never used to train public models, full stop.
Ask in plain English and get a sourced answer across federal and state in minutes, so your team spends time on judgment, not assembly.
Pricing
Marble Pro
$59/ seat / mo ($600 / seat / year)
Bizora Pro
$69.99/ seat / mo
Questions
