Built for platforms that onboard & pay third parties

Embedded tax validation infrastructure for payment ecosystems

Embed real-time IRS TIN matching, EIN lookup, and compliance screening directly into your onboarding and payout workflows. Designed for fintechs, marketplaces, payroll platforms, and vendor onboarding systems.

Get API Key Read the API Docs
REST + JSON
Bulk + Real-time
Audit-ready logs
Platform-scale workflows
IRS TIN Matching (Example)
POST
curl -X POST "https://www.tincomply.com/api/v1/validate/irs-tin-name-matching" \
-H "X-API-Key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
  "tin": "123456789",
  "name": "ACME INC"
}'

Move validation upstream—before payouts and filing season

Payment platforms, marketplaces, and payroll systems often discover invalid TINs late—during 1099 prep, payout exceptions, or vendor remediation. TIN Comply lets you validate at onboarding with a developer-first API, so mismatches are handled automatically and early.

Reduce downstream cleanup

Catch mismatches early

Validate TIN + legal name at onboarding to reduce CP2100/B-notice risk and prevent payout and filing delays.

Embed into your stack

Designed for integration

Simple REST endpoints, predictable JSON responses, and clear error handling for platform workflows.

Compliance-ready by default

Audit trails & controls

Log every validation with timestamps and outcomes so your risk, finance, and compliance teams have visibility.

Where teams embed TIN Comply

Add validation to the exact points in your workflow where bad data creates the most cost.

  • 1
    Seller / contractor onboarding Validate TIN/name and prompt remediation before the account is activated.
  • 2
    Payout & payee management Block payouts on mismatches or route to exception handling automatically.
  • 3
    Vendor master data & ERP sync Standardize and validate upstream, then sync clean records to your ERP/finance systems.
  • 4
    1099 readiness checks Run bulk validations to identify and remediate issues before year-end deadlines.
Example Response
JSON
{
  "id": "ZfPjt...",
  "request": {
    ...
  },
  "irsTinNameMatchingResult": {
    "message": "TIN and Name combination matches IRS EIN records",
    "result": 7,
    "completed": true
  }
}

Developer-first capabilities

Use individual endpoints as building blocks, or implement an end-to-end validation pipeline.

IRS TIN Matching

Validate TIN + name and interpret match results inside your onboarding workflow.

EIN Lookup & Entity Signals

Fill gaps in payee data and improve accuracy before vendor records are created.

Compliance Screening

Support risk workflows with sanctions and list screening endpoints where applicable.

Bulk + Real-time

Scale via API calls or bulk workflows depending on your use case and throughput.

Audit-ready logging

Store validation outcomes with timestamps and IDs for traceability and reviews.

Integration support

Architecture review and implementation help available for platform teams.

Explore endpoints Get an API key

Quick start

A simple path from first call to production embedding.

Step 1

Create an account

Generate an API key and configure your environment.

Step 2

Test endpoints

Start with TIN matching, then add Address Matching and Screening as needed.

Step 3

Embed into workflows

Enforce validation gates during onboarding, payouts, and year-end readiness.

Build validation into your platform in days, not months

Start with the API docs, get an API key, and embed tax validation where it matters most.

Read API Docs Get API Key