IRNs from SAP, sub-second.
GSP-licensed connector for SAP B1, S/4HANA, ECC & ByDesign. Auto IDOC-to-JSON conversion, instant IRN and QR code via the NIC API.

WhiteBooks runs GST, e-invoicing, and e-way bill operations for India’s largest enterprises — and the CA firms that audit them.



Built on a direct GSP license from GSTN. Each engine is a product on its own — together they cover every filing requirement in India, and a few outside.
File GSTR-1, 3B, 9, and 9C across unlimited GSTINs from one workspace. Auto-reconcile 2A/2B against your purchase register.

Direct IRP integration with bulk upload, auto-retry, and a full audit trail on every invoice.

One screen or one API call. Auto-populated from your invoice, with real-time validity checks.

Cloud-native books with automated entries from your sales and purchase data. No accountant to enter, one to certify.

Auto-fetch GST, Income Tax, and TDS notices from GSTN, ITD, and TRACES. Track every deadline, get alerts, and keep your whole team aligned — all from the same WhiteBooks account.

Built on a direct GSP license from GSTN. Sandbox in 5 minutes. Production in 5 days. No resold pipes.
JSON in, ARN out. GSTR-1, 3B, 9, 9C — all supported. GSTIN validation, HSN search, IMS bulk ops, and notice tracking over clean REST endpoints.
No credit card · Live in minutes
Generate IRNs at scale with bulk endpoints, automatic retry on IRP outages, and a success webhook.
No credit card · Live in minutes
One call per dispatch. Auto-populate 90% of fields from an existing IRN. Webhooks 4h before expiry.
Pre-built, GSP-licensed connectors turn SAP, Oracle, Microsoft Dynamics and Tally into a compliance engine — e-Invoicing, e-Way Bills, and GST filing, native to the system you already run.
GSP-licensed, real-time connectors for SAP B1, S/4HANA, ECC & ByDesign — zero ABAP.
GSP-licensed connector for SAP B1, S/4HANA, ECC & ByDesign. Auto IDOC-to-JSON conversion, instant IRN and QR code via the NIC API.
Real-time e-Way Bill generation, updates and cancellations from SAP ECC or S/4HANA. Zero ABAP coding, complete compliance trail.
Native SAP add-on for real-time upload, reconciliation and filing of GSTR-1, GSTR-3B and IMS — with multi-GSTIN management.
Automate accounting, GST compliance, inventory and reconciliation workflows with a single integrated platform.
From quote to collection — receivables, billing and books that stay current on their own.
Invoicing to filing on a license held straight from GSTN — no resold pipes.
Track movement across every branch, with purchase and dispatch in one flow.
Match 2A/2B and bank statements automatically, then read the result on live dashboards.
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Every API call is protected by industry-leading security practices, continuous monitoring, and a high-availability infrastructure trusted by 25,000+ businesses.

99.99% Uptime SLA
High availability you can depend on
TLS 1.2+ & OAuth2
Industry-standard encryption & secure authentication
Data Residency
Multi-region deployment for data sovereignty
Audit & Monitoring
Detailed logs & audit trails for complete visibility
GST Suvidha Provider — direct API channel to GSTN, no resold pipes
Invoice Registration Portal access for IRN generation
Direct access to the NIC e-Way Bill system
Information Security Management System — current 2022 revision
Annual security audit by a CERT-In empanelled firm
Modern cryptography enforced on every endpoint
Security is not just a feature—it's our foundation. WhiteBooks follows a security-first approach with regular audits, vulnerability assessments, and continuous improvements.
The gap was never your data. It's software that can't reason about it.
Indian compliance changed more in 2025 than in the previous five years combined. GST 2.0 collapsed five slabs into three. E-invoicing thresholds dropped to ₹5 crore AATO. IMS went live. Rule 37A tightened ITC. The 30-day IRN window arrived. Your software hasn't kept up.
Most GST tools still treat compliance as data entry. WhiteBooks treats it as an inference problem — match invoices, flag anomalies, predict notices, and file in one keystroke. Built on the only thing that should be doing this work: AI plus a GSP license direct from GSTN.
Direct SAP and Tally connectors. Zero CSV uploads. Your ERP stays the source of truth — WhiteBooks handles the rest.
Push invoices from SAP S/4HANA or ECC to GSTN in real time. Generate IRNs and e-way bills inside the SAP transaction. No middleware, no separate ETL, no CSV fallbacks.
Match 6,000+ invoices per minute against GSTR-2B. Surface every blocked credit, every Rule 37A risk, every vendor with a falling compliance score — before you file 3B.
WhiteBooks reads your AATO and applies the right e-invoicing threshold, the right 30-day IRN window, the right ISD rule. The software adapts to the law, not the other way around.
REST, idempotent, retryable. Sandbox keys in 5 minutes. Production-grade SLAs. Direct GSTN-licensed pipe — no resold APIs.
# Generate an IRN with the WhiteBooks REST API curl https://api.whitebooks.in/v1/einvoice \ -H "Authorization: Bearer $WHITEBOOKS_KEY" \ -H "Content-Type: application/json" \ -d '{ "supplier_gstin": "29AAACR5055K1Z5", "buyer_gstin": "27AAFCD5862R000", "invoice_no": "INV-2026-00421", "invoice_value": 150000, "items": [...] }' → 200 OK · 182ms · IRN a4f2c91e8b7d3...
WhiteBooks uses purpose-built models for four jobs that humans have been doing manually since GST launched in 2017.
Match your purchase register against GSTR-2B, including fuzzy vendor names, rounding deltas, and split invoices that exact-match logic can miss.
Scan return data for common validation issues before submission, so your team can resolve exceptions before filing.
WhiteBooks reads your filing pattern and flags returns likely to trigger a Section 61 scrutiny notice — based on ITC mismatch trends, turnover variance, and HSN distribution anomalies.
Ask "Why did my ITC drop ₹4.2L in October?" or "Which vendors are unfiled for September?" — get an answer drawn from your live data, with source rows linked. Built on the Anthropic API.
Trusted by finance controllers and IT heads across the country.
“I just wanted to share a quick note and let you know that you guys do a really good job. I'm glad I decided to do business with you. You guys have made integration so quick and smooth which has not been there with other GSPs. When it comes to support, you guys have always been there round the clock. Thanks, guys!”

“WhiteBooks helped me to Generate the e-Invoices and e-Way Bills from my SAP in a single click. Their SAP connector is efficient, simple and cost effective.”
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GSP-licensed, AI-native, used by P&G, IBM, Razorpay, and 25,000+ businesses. Twenty minutes to see it run on your own data.