RegInfra converts Indian tax law into machine-executable logic. Send transaction facts. Get a deterministic regulatory decision with complete reasoning — versioned, auditable, permanent.
Why RegInfra
Every team that builds compliance logic internally owns it forever — updates, edge cases, rule changes, audit exposure. RegInfra is the layer you call instead of building.
Your application sends payment facts. RegInfra determines the applicable section, rate, and amount — you don’t embed the decision logic in your codebase.
Why this section. Why this rate. What the threshold was at that exact moment. Traceable to the specific provision of the Income Tax Act.
Pull any transaction from any past date and get back the exact decision with the rule version active on that day. Immutable by design.
Every rule set carries an effective date. When Parliament amends the Act, RegInfra updates. Your integration stays unchanged.
Payroll, payments, ERP, reconciliation — all calling the same engine. No divergence between systems on what the correct rate should be.
Build vs RegInfra
Internal compliance logic works — until the Act changes, a new circular applies, or an edge case surfaces at scale. RegInfra owns the regulatory logic so your team doesn’t have to.
| What you own when you build internally | With RegInfra | What this means |
|---|---|---|
Tax rule interpretation Mapping Act language to code logic |
✓ Owned by RegInfra | No legal interpretation risk in your codebase |
Regulatory updates Finance Act amendments, new circulars |
✓ Automatic, versioned | Your integration doesn’t change when rules do |
Threshold state per vendor YTD tracking across payments |
✓ Managed, snapshotted | Threshold at exact payment time — not reconstructed later |
Decision evidence Why this rate, on this date, under this rule |
✓ Stored permanently | Every past decision reproducible with full reasoning |
Rule version proof Which Act version was active on a past date |
✓ Cryptographic fingerprint | Provable, immutable — not reliant on memory or documentation |
Pre-transaction validation Block wrong classifications before money moves |
✓ 400 error at API layer | Wrong deductions caught before they happen, not in the next audit |
How it works
Your payment system calls RegInfra before releasing funds. Pass the payment amount, vendor PAN, deductee type, and nature of payment. RegInfra determines the applicable section — you don’t need to specify it.
RegInfra returns the correct section, rate, and amount — with the complete decision chain. Why that section. Why that rate. Threshold state at this exact payment. PAN status today.
Every decision is stored against the transaction. Query any payment by vendor PAN, date range, or section. The reasoning is always there — no reconstruction from memory or spreadsheets.
Every response includes the correct 393-series section reference. Not retrofitted from the old 194-series. Built for the new Act from the start, effective 1 April 2026.
Right fit
New contractors onboarded constantly. Payment nature varies per contractor. Engineering team maintaining TDS logic in codebase. Classification errors caught only when contractors complain.
TDS accuracy is product quality for you. Wrong deduction in your platform is your reputation problem. You need TDS logic as an API — so every Act change is RegInfra's problem, not yours.
Beyond TDS
New regulation = new rule files. No engine rewrite. The same machine-readable law pattern extends across India's complete regulatory stack.
Free trial
Full access to all 19 TDS sections for 30 days. API key provisioned within 24 hours.
All sections. Full reasoning trail from your first call.
Every decision stored permanently from day one.
We review manually and respond same business day.
We'll review your details and send your API key to your work email within 24 hours.
In the meantime, read the API documentation to prepare for integration.
Get started
Start with a free trial or book a 20-minute demo using a real payment scenario from your business. No slides. Just the product working on your data.