| AI-specific tax codes | work_type system: compute, research, content, consulting, trading | Generic SaaS/digital codes only |
| Per-state classification | TX 80% rule, NJ SaaS taxable, IA B2B exempt, MD split rates, CT rate distinction | Simplified — one code per product globally |
| Confidence scoring | Every response includes score (0-100) + confidence level | No confidence indicator |
| Reasoning / citations | Statute citations, classification basis, advisory text on every response | Returns rate only — no explanation |
| Pricing (per $10K transaction) | $0.001 (x402) or ~$0.02 (API key) | $50 (0.5% of value) |
| x402 / crypto payments | Native — pay per call with USDC on Base | Not supported |
| Agent-to-agent transactions | Purpose-built — both buyer and seller perspectives | Not designed for agent commerce |
| Nexus monitoring | Tracks cumulative revenue per state, threshold alerts | Stripe-processed transactions only |
| Capital gains tracking | 51-state rates, FIFO/LIFO/Specific ID cost basis | Not offered |
| 1099 tracking | Automatic vendor YTD tracking, $600 threshold alerts | Not offered |
| Global coverage | 51 US jurisdictions | 180+ countries |
| VAT / GST | Not yet | Full support |
| Tax filing | Not yet | Partner integrations (TaxJar, Taxually) |
| Local rates (city/county) | State-level only | City/county/district |