Your entire back office.On Autopilot.
CompanyStack is the organization behind Ledger (accounting), Vault (documents and 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
Encrypted in transit and at rest, scoped to your organization
IT Act 2000 eSignatures
Electronic signatures with a signed, verifiable audit record
OTP-Verified Signers
Every signer confirms their email with a one-time passcode
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 built-in 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 email-OTP electronic signatures with a verifiable signing record.
Co-Founder Shareholding Agreement (SHA)
2 Signers · Email OTP eSigned
Intellectual Property (IP) Assignment
Signature Record Attached
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 & eSign
Draft co-founder SHAs, board resolutions, and vendor contracts. Collect email-OTP electronic signatures, with a signature record and signed manifest anyone can verify.
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 & eSignEncrypted corporate document vault with email-OTP eSigning and a verifiable signing record.
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 & 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.
What kind of eSignature does Vault use?
Vault records each signer's consent as an electronic signature under the Information Technology Act, 2000. Every signer confirms control of their email address with a one-time passcode before signing, and the completed document carries a signature record. It is not Aadhaar eSign or a digital signature certificate (DSC). Documents that must be registered or filed with an authority, or that a counterparty requires to carry Aadhaar eSign, a DSC, or a wet-ink signature, should be signed that way instead.
Do we need an incorporated Pvt Ltd entity before signing a co-founder agreement?
No. A co-founder agreement is an agreement between individuals, so you can draft and eSign it on Vault before incorporating. Once the company is incorporated, it usually has to adopt or ratify the agreement for its terms to bind the company, so plan that step with your CS or lawyer.
Do I need a subscription to use Vault eSign?
Drafting, editing, and sending agreements for signature needs an active subscription on your organization. The people you send a document to do not need a CompanyStack account: they sign from the link in their email.
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?
Data travels over encrypted HTTPS connections and is stored with hosting providers that encrypt it at rest. Bank connection credentials are additionally encrypted with AES-256-GCM before they are stored. Every record is scoped to its organization, and each completed signing packet has a manifest signed with our attestation key, so anyone can check that the document has not been altered.
What happens once all parties have signed?
Vault produces the final PDF, a signature record listing each signer, and a signed manifest of the signing events. Signers receive the final agreement and the signature record by email, your team can download them from the Vault dashboard, and anyone can check a document on the public verification page.
Put your entire company back office on autopilot today.
Automate your bookkeeping, GST returns, MCA secretarial filings, and document eSigning in one unified platform.