About Diyan (Diddo) Mihaylov - No BS, Just Tax Tech
Hey there, I’m Diyan (Diddo) Mihaylov 👋
Tax Product Lead at Uber, specializing in global e-invoicing, indirect tax engines, and scaling financial/tax platforms.
As a product leader managing compliance across 80+ jurisdictions at Uber, I kept running into the same problem: tax tech is full of jargon, vendor noise, and consultants with 40-slide decks, yet brilliant tax teams are buried under manual work that should have been automated years ago. Nobody was talking about it from a product perspective. So I started writing about where the automation is failing, where the real opportunities are, and what the teams getting it right are doing differently.
Core Competencies:
- E-Invoicing & Indirect Tax Product Strategy: CTC, ViDA, and real-time reporting mandates.
- Product Lifecycle Management: From regulatory discovery to global deployment.
- GenAI & Automation: Intelligent data platforms and anomaly detection.
- Global Compliance at Scale: VAT/GST engines for 80+ jurisdictions.
- System Integration: Custom ERP (Oracle), Tax Engines (Fonoa/Sovos), and Government Portals.
- Data Governance: SOX compliance, ITGC, and financial data integrity.
- Stakeholder Orchestration: Aligning Legal, Tax, Engineering, Business Operations, and Finance.
Welcome to the No BS, Just Tax Tech newsletter!
Thank you for being here. This newsletter will help you develop the product core to align with the compliance side. Weekly insights on scaling FinTax systems and navigating the shift to real-time reporting. Under 500 words. No fluff.
Here are some of the top posts:
When Compliance Becomes a Single Point of Failure: The High Cost of 5 Seconds
In the world of S&P 500 scale and high-growth scale-ups, the line between “Tax Compliance” and “Revenue Operations” has officially vanished.
The Tax Tech Skill Gap: Why Your Next Hire Shouldn't Be a Tax Expert
If you are thinking of what’s next in tax technology, it’s worth regularly scanning the job ads of Big Four. A quick look reveals the following:
The Xero-Anthropic Partnership: AI Speed vs. Accounting Accountability
Xero’s recent partnership with Anthropic to integrate Claude AI directly into the platform isn’t just another feature drop; it’s a shift in how small-to-mid-market (SMB) finance teams will operate. For Tax Tech leaders, this represents the classic tension: the
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