Official DGII DR Registry · Daily Automated Sync

Validate any Dominican RNC, Cédula, NCF or Batch instantly

Official legal name (Razón Social), Module 11/10 check digit, NCF / e-CF fiscal receipts, and Form 606 bulk verification synced daily with DGII.

TaxpayersDGII RD

Daily synced official registry

797,960

ACTIVO Statuse-CF / NCF

Valid ITBIS tax credit

381,532

Trade NamesBusinesses

Registered businesses

448,700

Public JSON endpoints with HTTP caching, compression, and abuse protection for invoicing & POS:

GET /api/v1/rnc/:rnc

GET /api/v1/rnc/000000000

GET /api/v1/search?q=EMPRESA%20DE%20PRUEBA

POST /api/v1/validate/ncf

POST /api/v1/rnc/batch

GET /health

Dominican Republic Tax Validation Suite & API

Real-time DGII taxpayer lookup for businesses, accounting & software teams

Built on top of the official Dominican Republic tax authority (DGII) daily registries to prevent rejected invoices, invalid tax-credit deductions (ITBIS / Form 606), and compliance issues under Law 32-23.

Check Digit + Official ACTIVO Status

Every 9-digit corporate RNC (MOD11_DGII) and 11-digit personal Cédula (MOD10_JCE) is validated mathematically and matched against live DGII status (ACTIVO, SUSPENDIDO, DADO DE BAJA).

NCF / e-CF Receipt & Official QR Inspector

Verify traditional 11-character B01–B17 receipts and 13-character XML electronic E31–E47 (Law 32-23) receipts, check ITBIS tax-credit eligibility, and open the direct dgii.gov.do stamp URL straight from your browser.

Excel Form 606 Pre-Check & Fee-Free e-CF POS

Paste up to 50 RNCs from Excel to catch suspended vendors before filing Form 606. Need direct DGII e-CF invoicing without per-receipt 'peaje' fees in RD? Explore UrbanStock POS or our English DGII Guide.

Frequently asked questions

Common questions about RNC, e-CF & the DGII

What is an RNC in the Dominican Republic and how do I check if a company is active?

The RNC (Registro Nacional de Contribuyentes) is the 9-digit tax identification number issued by the DGII for Dominican corporations (SRL, EIRL, SA) — or an 11-digit Cédula for sole proprietors and freelancers. Enter it above or call GET /api/v1/rnc/{rnc} and confirm isActive === true (official DGII status: ACTIVO).

Is this RNC lookup tool and JSON REST API completely free?

Yes. Both the web lookup tools and the public JSON REST endpoints (/api/v1/rnc, /api/v1/search, /api/v1/validate/ncf, /api/v1/rnc/batch) are free with open CORS (*) and require no API key or sign-up.

How often is the Dominican taxpayer database synced with dgii.gov.do?

An automated worker checks the official DGII RNC and Commercial Name files every early morning (America/Santo_Domingo time) using ETag and SHA-256 verification and reloads indexes with zero downtime whenever DGII publishes changes.

Why do raw taxpayer statuses and company names appear in Spanish?

RNC legal names (Razón Social), economic activities, and status codes like ACTIVO, SUSPENDIDO, CESE TEMPORAL, and DADO DE BAJA are official Dominican legal terms issued by the DGII and preserved verbatim for strict tax and accounting accuracy.

What is the difference between B01 and E31 (e-CF) invoices under Law 32-23?

Both grant ITBIS fiscal credit (tax deduction) for B2B purchases: B01 is the legacy 11-character NCF format, while E31 is the mandatory 13-character signed XML Electronic Fiscal Receipt (e-CF) governed by Law 32-23 through 2026 deadlines.

How does UrbanStock POS integrate DGII RNC lookups and e-CF invoicing?

UrbanStock POS (urbanstockpos.com) is an omnichannel POS & ERP for Dominican retail stores and B2B wholesalers (Windows, Android, WebApp). It auto-fills verified taxpayers in milliseconds at checkout and issues DGII e-CF receipts directly using your digital certificate with zero per-invoice surcharges.