JustSimple-Billing
Next.js Multi-Tenant Billing & Ledger System

Dynamic Invoicing & Ledger Accounting for Modern Businesses

Create custom invoices with configurable columns, track live client outstanding balances, settle bills individually or in bulk with settlement discounts, and empower accountants with role-based permissions.

Dynamic Columns per BusinessBulk Payments with DiscountDouble-Entry Ledger Records

Engineered for Complete Financial Clarity

Built on MongoDB with proper relational references and double-entry ledger bookkeeping.

Multi-Business Management

Create and manage separate billing environments for different companies, brands, or subsidiaries with easy switching.

Customizable Invoice Columns

Every business selects what to have and not have on their bill: HSN/SAC, Unit, Qty, Discounts, Tax rates, or custom notes.

Bulk Payments with Discounts

Settle multiple invoices in one transaction, grant cash or settlement discounts, and auto-allocate FIFO or custom amounts.

Client Outstanding & Ledger

Full double-entry chronological client ledger with running balance, debits (invoices), credits (payments/discounts).

Public Bill Sharing

Generate secure, public share links so clients can view, verify, and print their invoices with no login required.

Owner & Accountant Roles

Invite multiple accountants who can create bills, record payments, and view ledgers while the Owner controls settings.