django-coasc 0.1.1

Django application providing a solid foundation for double-entry bookkeeping systems

Django-coasc

Double entry bookkeeping in Django. Inspired by Django-hordak and gnucash

Django-coasc provides a model layer for a double-entry accounting system, primarily aimed at cooperative organizations but suitable for various accounting needs.

The goal

A simple and well tested core to build double entry system accounting apps upon.

Interface built upon Django-coasc:

COASV Accounting app for Cooperatives

Using Django-coasc in your project

Install with uv

uv add django-coasc

Install Django-coasc using pip:

pip install django-coasc

Add coasc to your INSTALLED_APPS in Django settings:

INSTALLED_APPS = [
    # ...
    'coasc',
    # ...
]

Run migrations:

# If using standard Python
python manage.py migrate coasc

# If using uv
uv run ./manage.py migrate coasc

Features

• Double-entry bookkeeping - Each transaction must have balanced debits and credits
• Hierarchical accounts - Support for parent and child account relationships
• Multiple account types - Assets, Liabilities, Income, and Expenses
• Transaction validation - Ensures accounting integrity
• Balance calculation - Methods to calculate account balances with optional date filters
• Revertible transactions - Built-in support for reverting transactions

Core Components

• Member: Represents individuals or entities associated with accounts
• Ac (Account): The core entity representing different types of accounts
  • Parent accounts - Group related accounts
  • Child accounts - Belong to a parent account
  • Standalone accounts - Independent accounts
• Transaction: Represents financial transactions
• Split: Represents individual debit or credit entries within a transaction

Terminology

COASC: Cooperative Accounting System Core COASV: Cooperative Accounting System View

TODOs

1. add comments where appropriate
2. write tests for date filtered bal and total_bal()
3. modify tests for transaction(renamed date_created to created_at and add tx_date field)