LedgerFlow

LedgerFlow will be delivered in four sequential phases, each building on the previous and delivering independent business value. This sequencing allows early market validation, user feedback integration, and revenue generation before full feature completion.

Duration: 3-4 months | Target: Q3 2026

The foundation phase establishes the core double-entry accounting engine, multi-tenancy, company setup, and basic financial reporting. This is the minimal viable product that demonstrates proof-of-concept and enables early customer pilots.

Phase 1.1: Core Architecture & Infrastructure (Weeks 1-3)

• Database Schema: Multi-tenant PostgreSQL schema with row-level security, tenant isolation, and accounting invariants (debit = credit)
• API Framework: FastAPI or Spring Boot REST API with OpenAPI documentation, authentication, JWT/OIDC integration
• Frontend Setup: React + TypeScript with TanStack Query, responsive design for desktop/tablet
• Deployment: Docker containerization, Kubernetes-ready manifests, CI/CD pipeline (GitHub Actions)
• Security Foundation: HTTPS, data encryption at rest, audit logging infrastructure

Phase 1.2: Tenancy & Company Management (Weeks 4-5)

• Multi-tenant isolation at database row level
• Company creation with name, address, tax IDs, FY start, base currency
• Master company profiles and switching between companies
• Company logo and branding configuration
• Opening balance entry and FY continuation logic

Phase 1.3: Chart of Accounts & Masters (Weeks 6-8)

• Standard group hierarchy (Assets, Liabilities, Capital, Income, Expenses)
• Ledger creation, editing, merging, and safe deletion
• In-line master creation during voucher entry (create-on-the-fly pattern)
• Party masters with billing/shipping addresses, credit limits, tax registration
• Ledger deactivation for accounts with posted transactions

Phase 1.4: Voucher Entry Engine (Weeks 9-12)

• All standard voucher types: Payment, Receipt, Contra, Journal, Sales, Purchase, Debit Note, Credit Note
• Double-entry enforcement: debits = credits before save
• Keyboard-driven entry with tab flow, in-field ledger/party pickers
• Auto-numbering per voucher type with configurable prefixes
• Duplicate detection and sequence validation
• Bill-wise tracking (new reference, against reference, advance, on-account)
• Free-text narration and file attachments

Phase 1.5: Financial Reporting (Weeks 13-14)

• Trial Balance for any date range in scheduled/grouped formats
• Profit & Loss statement with income/expense breakout
• Balance Sheet (assets, liabilities, capital)
• Day Book register
• Ledger-wise and group-wise statements with running balances
• Drill-down from reports to source vouchers
• Export to PDF and Excel

Phase 1.6: Audit Trail & Security (Weeks 15-16)

• Complete audit log: create/edit/delete with user, timestamp, and old/new values
• Period locking to prevent back-dated changes
• Role-based access control (RBAC) with module, action, and company scope
• Multi-factor authentication (MFA) and session controls
• Password policy enforcement

Phase 1.7: Backup, Export & Deployment (Weeks 17-18)

• Automated encrypted backups with point-in-time restore
• Company-level export (CSV, JSON, PDF)
• Data import from CSV/Excel with validation
• SaaS and on-premise deployment configurations
• Health monitoring and alerting

Duration: 3 months | Target: Q4 2026

Extends Phase 1 with full inventory management and GST/VAT compliance, enabling trade and business transactions with statutory filing readiness.

Phase 2.1: Inventory Module Foundation (Weeks 1-4)

• Stock item masters with groups, categories, units of measure (compound units)
• Multiple godowns/warehouses with location tracking
• Valuation methods: FIFO, LIFO, Weighted Average, Last Purchase Cost (per item)
• Opening stock entry and stock journal (transfer, manufacture)
• Stock entry table integration with voucher postings
• Batch tracking with manufacture/expiry dates
• Reorder levels and minimum quantity alerts

Phase 2.2: Inventory Transactions & Invoicing (Weeks 5-6)

• Physical stock adjustment vouchers
• Delivery notes and receipt notes
• Full sales cycle: quotation → order → delivery → invoice → receipt
• Purchase cycle: PO → receipt → bill → payment
• Convertible document chain (quote to order to invoice)
• Price lists per party with quantity-based discount slabs
• Order fulfilment tracking

Phase 2.3: GST/VAT Engine (Weeks 7-9)

• Tax regime configuration (GST rates, VAT rates, HSN/SAC codes)
• Per-line tax computation with auto-split (CGST/SGST/IGST for India)
• Place-of-supply logic for inter-state vs intra-state determination
• Reverse charge, nil-rated, exempt, zero-rated supply handling
• Tax ledger creation and posting
• Input tax credit (ITC) register

Phase 2.4: GST Compliance & Filing (Weeks 10-11)

• GSTR-1 (outward supplies) generation
• GSTR-3B (tax liability) generation
• VAT 201 return for UAE compliance
• Filing-ready output formats (JSON/CSV for portal upload)
• GST return summary reports
• Reconciliation reports between books and tax filings

Phase 2.5: Inventory Reports & Integrations (Weeks 12)

• Stock summary and movement analysis
• Godown-wise stock report
• Stock valuation report (by item, godown, batch)
• Reorder status report
• CSV/Excel import of stock items and opening stock
• Tally XML import for masters and transactions

Duration: 2-3 months | Target: Q1 2027

Adds the forward-looking Finance & Treasury module that reads (never writes) from the accounting books. Includes budgeting, cash-flow forecasting, credit control, cost/profitability analysis, and financial dashboards for management decision-making.

Phase 3.1: Budgeting & Control (Weeks 1-3)

• Budget definition per ledger, group, cost centre, and period
• Multiple budget versions (original vs revised)
• Budget-vs-actual variance reporting with drill-down to vouchers
• Optional budget-breach warnings or blocking policies
• Budget-controlled spending workflows

Phase 3.2: Cash & Liquidity Management (Weeks 4-5)

• Cash-flow forecasting from open receivables/payables
• Post-dated cheque and recurring commitment tracking
• Consolidated bank/cash position across all accounts
• Projected balance forecasts by date
• Payment scheduling/prioritisation within available liquidity

Phase 3.3: Credit Control & Collections (Weeks 6-7)

• Per-party credit limits and credit period enforcement
• Credit limit breach warnings for orders/invoices
• Ageing-driven collections worklist for follow-up
• Automated payment reminders (email/WhatsApp/SMS)
• Interest calculation on overdue receivables/payables

Phase 3.4: Cost Centres & Profitability (Weeks 8-9)

• Cost centre and cost category definitions
• Voucher allocation across cost centres (split allocation)
• Profitability reports by cost centre, project, or branch
• What-if scenario analysis without posting to actual books
• Contribution margin and product-line profitability

Phase 3.5: Financial Analytics & Dashboards (Weeks 10-11)

• Management dashboard with KPIs (liquidity, profitability, ratios)
• Period-to-period comparison (YTD vs prior year)
• Actuals vs budget variance visualization
• Cash Flow and Funds Flow statements (analytical view)
• Financial ratio analysis and trend charts
• Scheduled MIS delivery to stakeholders

Phase 3.6: Public API & Treasury Features (Weeks 12)

• Documented REST API covering 80+ endpoints
• OAuth 2.0 and API key authentication
• Webhook events (voucher posted, budget variance, cash alert)
• Finance & Treasury data consumption endpoints
• Multi-currency support with transaction-date FX rates
• Forex gain/loss automatic realization

Duration: 2-3 months | Target: Q2 2027

Adds payroll processing with statutory compliance, approval workflows, SSO for enterprise, and ecosystem connectors for e-commerce, CRM, and HRMS systems.

Phase 4.1: Payroll Engine (Weeks 1-3)

• Employee masters with personal and employment details
• Salary structure configuration from earning/deduction pay heads
• Attendance and leave management integration (or API import from HRMS)
• Monthly payroll processing from attendance inputs
• Statutory deduction calculation (PF, ESI, PT for India; WPS for UAE)
• Automatic payroll journal posting to accounts
• Individual payslip generation and email delivery

Phase 4.2: Payroll Compliance & Enterprise Auth (Weeks 4-5)

• PF deposit register and contributions summary
• ESI returns and payee tracking
• Professional tax schedules by state
• SSO (SAML/OIDC) integration for enterprise tenants
• Directory service integration (LDAP/Active Directory)
• Advanced permission models (data residency, department-scoped)

Phase 4.3: Approval Workflows & Controls (Weeks 6-7)

• Maker-checker for sensitive vouchers above thresholds
• Multi-level approval workflows with escalation
• Approval dashboard and notification system
• Budget-breach approval gating
• Audit trail of all approvals and rejections

Phase 4.4: Treasury & Compliance Integration (Weeks 8-9)

• E-invoicing (IRN) integration with government portals
• E-way bill generation for inter-state movements
• TDS/TCS automated calculation and return generation
• Bank feeds and payment gateway integration
• Automated payment settlement tracking

Phase 4.5: Ecosystem Connectors (Weeks 10-11)

• WooCommerce connector for sales order sync
• Shopify integration for order and payment sync
• E-commerce order import and invoice generation
• CRM integration for customer data sync
• HRMS API integration for attendance and payroll data
• Connector framework for partner integrations

Phase 4.6: Mobile & Native Apps (Weeks 12)

• Native iOS and Android apps (React Native)
• Core features: view reports, search transactions, quick approvals
• Treasury features: cash position, payment scheduling
• Offline data caching and sync
• Push notifications for approvals and alerts

Total Investment

• Duration: 12-14 months
• Team Size: 12-16 full-time engineers
• Effort: ~600-700 person-months
• Infrastructure: Cloud (AWS/GCP), CI/CD, monitoring, support

Key Success Factors

• Early customer pilots in Phase 1 (2-3 customers by month 3)
• Continuous compliance validation with tax experts
• Regular security reviews and penetration testing
• Performance testing and optimization at each phase
• User feedback integration in sprint planning

Risk Mitigation

• Compliance Changes: Quarterly tax rule review and scenario testing
• Performance: Load testing at 10M+ transactions; caching and indexing strategy
• Data Loss: Real-time replication, automated backup verification, disaster recovery drills
• Security: Monthly security assessments, bug bounty program, code review policies