If your AI agent is buying or selling API services, it may owe sales tax across 51 jurisdictions. AgentTax calculates obligations, tracks thresholds, and exports 1099s — one API call at a time.
Every rate includes its source and confidence score. Verified daily against 7 independent sources.
POST /api/v1/calculate
{
"role": "seller",
"amount": 2500.00,
"buyer_state": "TX",
"buyer_zip": "78701",
"work_type": "compute"
}{
"success": true,
"jurisdiction": "Austin, TX",
"sales_tax": {
"state_rate": 0.0625,
"local_rate": 0.02,
"combined_rate": 0.0825,
"amount": 165.00,
"note": "TX §151.351 — 80% taxable"
},
"confidence": { "score": 96 }
}Tax calculations are for informational purposes only. Verify with a qualified tax professional before remitting.
Every agent payment — compute, data, SaaS, content — may create tax obligations across 51 US jurisdictions.
A $10 compute job is taxable at 80% in TX, 6.625% in NJ, and $0 in IA if B2B. Depends on what the agent did, not how it paid.
An agent making $0.01 payments can cross a state's nexus threshold in months — and thresholds vary: $100K in most states, $500K in Texas. Once crossed, collection obligations begin whether or not anyone's tracking them.
Sellers may owe sales tax. Buyers may owe use tax if the seller didn't collect. Both need tracking from both perspectives.
Every response includes the tax amount, jurisdiction, statute citation, and confidence score.
from agenttax import AgentTaxClient client = AgentTaxClient(api_key="atx_live_your_key") result = client.calculate( role="seller", amount=1000, buyer_state="TX", transaction_type="saas", work_type="compute", counterparty_id="agent_buyer_42", ) # Response { "success": true, "jurisdiction": "Texas", "classification_basis": "data_processing", "sales_tax": { "amount": 50.00, "rate": 0.0625, "taxable_pct": 0.80, "note": "TX Tax Code §151.351 — 20% statutory exemption" }, "confidence": { "score": 85, "level": "high" }, "total_tax": 50.00 }
Tax calculations are for informational purposes only. Verify with a qualified tax professional before remitting.
"AgentTax is the first tool that actually understands what an AI agent transaction is — not a human e-commerce order retrofitted for bots."
— Beta user, autonomous agent infrastructure team
Built for autonomous agent commerce, not retrofitted from human e-commerce.
| Feature | AgentTax | Avalara | Stripe Tax | Kintsugi |
|---|---|---|---|---|
| AI agent transaction support | ✓ Native | ✗ Manual | ✗ Manual | ✗ Manual |
| Buyer + seller dual-sided tax | ✓ | ✗ | ✗ | ✗ |
| Reasoning in every response | ✓ Statute cited | ✗ | ✗ | ✗ |
| Confidence scoring | ✓ Per-call | ✗ | ✗ | ✗ |
| x402 micropayment support | ✓ Native | ✗ | ✗ | ✗ |
| Economic nexus monitoring | ✓ Automatic | ✓ | ✓ | ✓ |
| Capital gains / 1099-DA | ✓ | ✗ | ✗ | ✗ |
| Free tier | 100 calls/mo | ✗ | ✗ | ✓ |
| Setup time | < 5 min | Days–weeks | Hours | Hours |
One API call calculates sales tax, use tax, and 1099 obligations for any transaction. Both buyer and seller perspectives available. Filing and remittance remain your responsibility.
Every response explains its reasoning: which state, which rule, which rate. Your agents can verify decisions, not just trust them.
Rates checked daily against 7 independent public sources. Discrepancies flagged for review. Flagged discrepancies are noted in API responses with reduced confidence scores. Every rate shows its source and confidence score.
API key account or x402 pay-per-call — your agent chooses.
x402 is an open payment protocol that lets AI agents pay with USDC — no account, no API key, just HTTP. AgentTax supports both access methods.
Transparent, verifiable, AI-auditable
GET /api/v1/ratesPOST /api/v1/verifyGET /api/v1/verify/statusbuyer_zip is provided.© 2026 Agentic Tax Solutions LLC. Tax rates verified daily against Tax Foundation, Sales Tax Institute, state DOR websites, Anrok, TaxJar, TaxCloud, and Kintsugi. AgentTax provides tax calculations for informational purposes only. Consult a qualified tax professional for compliance decisions.