Your entire back office.On Autopilot.
CompanyStack is the organization behind Ledger (accounting), Vault (documents and Aadhaar eSign), and the compliance platforms Indian founders need — in one quiet, continuous workspace.
- ₹0 Hidden Fees
- Predictable, transparent subscription pricing
- 100%
- MCA & GST Statutory Filing Accuracy
- 24/7
- Real-time Compliance & Vault Visibility
Encrypted Document Vault
256-bit encryption with immutable audit logs and version control
IT Act 2000 §3A & §10A Valid
Court-admissible Aadhaar OTP eSignatures under Indian law
eMudhra CCA-Licensed ESP
Identity verification via accredited Certifying Authority
Companies Act 2013 Aligned
Automated secretarial compliance and MCA v3 annual filings
Core Capabilities
Unified Back-Office Engine for Indian Startups
One continuous platform powers accounting, annual ROC filings, statutory tax, and an encrypted document vault with Aadhaar eSignatures.
Automated invoice parsing, expense ledger posting, and GSTR-2B Input Tax Credit recovery backed by bank feed reconciliation.
Amazon Web Services India
Cloud Infrastructure
₹49,973
GSTR-2B Reconciled
Slack & Notion SaaS
Software Subscriptions
₹21,830
GSTR-2B Reconciled
WeWork India Workspaces
Office Infrastructure
₹1,39,240
GSTR-2B Reconciled
MCA v3 annual return filings (MGT-7, AOC-4), share allotment returns (PAS-3), and live cap table tracking.
Annual ROC Returns (MGT-7 & AOC-4)
MCA v3 XBRL Validated · Complete
Return of Allotment (Form PAS-3)
Share Allotment & Board Minutes Signed
Register of Members & Cap Table
SH-1 Register Active · ESOP Pool Synced
Corporate ITR-6 returns, quarterly TDS (26Q/24Q) with Challan 281 drafting, and advance tax schedules.
Corporate ITR-6 Return
Section 80-IAC Startup Tax Exemption Applied
Quarterly TDS Returns (26Q / 24Q)
Contractor TDS Auto-Drafted with Challan 281
Quarterly Advance Tax Schedule
Penalty Protection (§234B/C) Calculated
Encrypted vault storage for corporate contracts, AI legal drafting, and instant Aadhaar OTP eSignatures under Section 3A of the IT Act 2000.
Co-Founder Shareholding Agreement (SHA)
2 Signers · Aadhaar OTP eSigned
Intellectual Property (IP) Assignment
eMudhra ESP Certified
Board Resolution #2026-04 (ESOP Pool)
SHA-256 Digest Timestamped
How It Works
Four steps from onboarding to complete compliance.
Zero spreadsheets, zero manual data entry. Built for founders who want peace of mind.
Upload Invoices & Sync GSTIN
Upload vendor invoices and receipts in seconds. Systems auto-parse vendor details and verify active GSTIN registrations without manual entry.
AI Expense Categorization
Intelligent general ledger mapping categorizes operating expenses automatically, while matching vendor invoices against GSTR-2B tax credits.
Expert CA & CS Filings
Dedicated chartered accountants and company secretaries handle your annual ROC compliance, board resolutions, and tax filings on deadline.
Document Vault & Aadhaar eSign
Draft co-founder SHAs, board resolutions, and vendor contracts. Execute legally binding Aadhaar eSignatures with court-admissible audit trails.
Comparison
Traditional CA Firm vs CompanyStack
Compare traditional legacy accounting retainers against our continuous automated back office.
Traditional CA Firm
Legacy Retainer- Surprise Bills & Opaque FeesUnpredictable charges billed per phone call, email, or resolution.
- Multi-Week Processing DelaysManual Tally entry leaves you blind to real-time cash burn and runway.
- Lost Receipts & Missed Tax CreditsPaper receipts scattered across messaging apps, leaking GSTR-2B ITC.
- Physical Couriers & Wet-Ink SignaturesPrinting paper contracts with physical couriers and zero legal audit trail.
CompanyStack
Automated Workspace- Flat Monthly SubscriptionTransparent pricing with zero hidden retainers or surprise fees.
- Real-Time Ledger & Bank SyncContinuous ledger gives instant runway, P&L, and expense visibility.
- Expert CS/CA Filings & Auto GST ReconAutomated GSTR-2B matching recovers 100% ITC with human expert sign-off.
- Document Vault & Aadhaar eSignEncrypted corporate document vault with 1-click Aadhaar OTP eSigning under IT Act 2000.
Pricing
Transparent Flat Plans. Zero Retainers.
Growth is a published monthly. Enterprise is quoted from your books, not a list price.
Complete AI Bookkeeping, GST Reconciliation, ROC Annual Filings & CS/CA Supervision
₹799 /month billed yearly, plus GST.
Full compliance automation for growing startups with continuous AI ledger and expert CS/CA oversight.
Included features:
- Unlimited document vault storage & Aadhaar eSignatures
- Continuous AI Bookkeeping & live bank sync
- Monthly GST Filings (GSTR-1 & GSTR-3B)
- Automated GSTR-2B Input Tax Credit reconciliation
- Annual MCA ROC Filings (MGT-7 & AOC-4)
- Cap table, board notices & resolutions
- Licensed CS & CA practice supervision before filing
Corporate Income Tax (ITR-6), TDS 26Q/24Q, Advance Tax & Multi-entity compliance
Quoted
Set by revenue, entities, and filings — not a list price.
Full-stack tax, secretarial, and multi-entity compliance automation with a dedicated CA lead.
Included features:
- Everything in Growth
- Corporate Income Tax Return (ITR-6)
- Quarterly TDS Returns (26Q & 24Q)
- Advance Tax (§208) advisory & calculations
- Multi-entity compliance & cap table
- Dedicated CA Lead with priority SLA
Frequently Asked Questions
Questions, answered
Everything founders, directors, and CS/CA professionals ask before switching to automated secretarial & accounting administration.
Is an Aadhaar eSigned document on CompanyStack legally binding in India?
Yes. Electronic signatures, including Aadhaar-based OTP eSign, are fully recognized and legally valid under Section 5 and Section 10A of the Information Technology Act, 2000. CompanyStack issues signatures through eMudhra, an accredited Certifying Authority licensed by the Controller of Certifying Authorities (CCA). Every signed document comes with an audit certificate admissible in Indian courts.
Do we need an incorporated Pvt Ltd entity before signing a co-founder agreement?
No. A co-founder agreement is a binding agreement between individuals. You can draft and eSign on Vault before incorporating. When you subsequently register your Pvt Ltd company, your agreement terms bind the incorporated entity and founders.
How does Vault pricing work for eSignatures?
Drafting and editing agreements in Vault is free. You only pay when sending documents for eSigning. During launch, eSigning is ₹5 per signature (subsidized from the regular ₹15 cost). Org subscription plans on this page cover Ledger bookkeeping and compliance; Vault eSign is billed per signature.
How does CompanyStack handle MCA / ROC compliance and annual filings?
CompanyStack tracks statutory deadlines under the Companies Act 2013 and auto-generates board resolutions, AGM/EGM notices, MGT-7 annual returns, AOC-4 financial filings, and PAS-3 share allotment returns with CS/CA oversight.
What security measures protect financial ledgers and document vaults?
Documents, board minutes, and financial ledgers are encrypted with 256-bit AES at rest and TLS 1.3 in transit. Signature audit logs, IP hashes, and timestamp certificates are stored immutably.
What happens once all parties complete Aadhaar eSign?
Once all signers complete Aadhaar OTP authentication, Vault seals the PDF with a digital certificate. Signers receive the final agreement and completion audit certificate by email and in the Vault dashboard.
Put your entire company back office on autopilot today.
Automate your bookkeeping, GST returns, MCA secretarial filings, and document eSigning in one unified platform.