🧾 django-finacc

Plug-and-Play Financial Accounting for Django — a reusable double-entry bookkeeping engine with REST APIs, period locking, GST/VAT support, and chart of accounts templates.

Works with Django 5.x and Python 3.11+.
Built for modular integration into ERP, CRM, or eCommerce projects.

🚀 Features

• 🧮 True Double-Entry Accounting — balanced journal entries enforced at DB level
• 🧑‍💼 Multi-Company & Multi-Currency (with FX rate tables)
• 🧾 Chart of Accounts (CoA) templates (India GST ready)
• 🧷 Period Locking & Year Close helpers
• 💰 GST/VAT Tax Models — inclusive/exclusive with CGST/SGST/IGST splits
• ⚙️ DRF APIViews — clean JSON endpoints for accounting automation
• 📊 Trial Balance / Ledger Helpers
• 🔐 Immutable Entries (reversal-only edits, planned)
• 🧱 Plug-and-Play — drop into any Django project as an app

📦 Installation

pip install django-finacc

setting.py entry

INSTALLED_APPS += ["rest_framework", "finacc"]

Adding Urls to project settings.py

path("api/finacc/", include("finacc.api.urls"))
python manage.py finacc_bootstrap_coa --company=1 --template=india_basic

example

POST /api/finacc/journal/entries/
{
  "company": 1,
  "date": "2025-11-08",
  "currency": "INR",
  "memo": "Opening capital",
  "lines": [
    {"account": 1, "debit": "100000.00", "credit": "0.00"},
    {"account": 2, "debit": "0.00", "credit": "100000.00"}
  ]
}

App Installation In Project Setting

INSTALLED_APPS += ["rest_framework", "finacc"]

Project Setting Initialization

FINACC = {
    "BASE_CURRENCY": "INR",
    "AUTO_POST_ON_CREATE": True,
}

example

from decimal import Decimal
from finacc.posting.rules import create_simple_entry
from finacc.posting.engine import post_entry

je = create_simple_entry(company, date, "INR", "Sale", [
    {"account": ar_acc, "debit": Decimal("1180.00")},
    {"account": rev_acc, "credit": Decimal("1000.00")},
    {"account": gst_payable_acc, "credit": Decimal("180.00")},
])
post_entry(je)


def post_invoice(company, invoice):
    # map lines -> AR, Revenue, Tax
    ...
    return post_entry(je)

Implementation Notes & Roadmap

• Immutable posted entries: disable updates/deletes; allow reversal entries only (planned: reverse_entry(entry_id)).
• Reports: Add Ledger, Balance Sheet, and P&L helpers with tree aggregation.
• Tax: Load taxes_india_gst.json via setup script; provide posting helpers that split CGST/SGST/IGST to mapped accounts.
• FX: Add revaluation utilities for period end.
• Permissions: Add IsCompanyMember mixin to filter by company_id.
• Docs site: MkDocs with Quickstart, API reference, and diagrams.
• CI: GitHub Actions matrix for Python 3.11/3.12 and Django 5.0/5.1.