Contact person: Project Title: BillEasy – Smart Billing & Expense Management App for Freelancers -- 2

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Location: Janakpur, Nepal

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Abstract

Freelancers and small business owners often struggle to manage invoices, expenses, and payments across multiple clients. BillEasy is a modern, user-friendly mobile and web application designed to simplify billing, track income, and manage financial workflows efficiently.
The app allows users to create and send invoices, record expenses, monitor payments, and analyze financial performance through visual dashboards.
Built using React Native for cross-platform functionality and Firebase for secure cloud data management, BillEasy provides a seamless and smart financial solution for freelancers.


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Introduction

Freelancing has become a dominant form of work in today’s digital economy. However, independent professionals often lack the time and tools to handle administrative tasks like billing, expense tracking, and reporting.
Traditional accounting systems are often complex and not designed for individual freelancers.

BillEasy bridges this gap by offering a simple, intuitive, and automated solution. It helps freelancers manage their financial transactions without technical or accounting knowledge.


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Objectives

To design an easy-to-use billing and expense management system.

To allow freelancers to create, send, and track invoices efficiently.

To manage client records and payment history in one place.

To offer data analytics for financial insights and reporting.

To provide a secure cloud-based system accessible anytime, anywhere.



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System Analysis

Existing System:

Freelancers often rely on manual spreadsheets or multiple apps (like Excel, Notes, or PayPal).

Managing invoices, expenses, and payments separately leads to confusion and errors.


Proposed System:

An integrated system that automates invoicing, payment tracking, and expense management.

Provides real-time financial reports and reminders.

Offers data synchronization via cloud storage for backup and multi-device access.

System Design

Architecture:

The system follows a client–server model with the following layers:

1. Frontend (Client App):

Built using React Native for Android/iOS or React.js for web.

Provides a smooth, responsive user interface.



2. Backend (Server):

Developed with Node.js + Express or Firebase Cloud Functions.

Handles API calls, data management, and authentication.



3. Database:

Firestore / MongoDB stores user, client, invoice, and expense data.



4. Authentication:

Firebase Authentication (Email/Password, Google Sign-In).



5. Payment Gateway (Optional):

Integration with Stripe / PayPal API for online payments.


Core Features

1. User Authentication – Secure sign-up/login using Firebase Auth.


2. Dashboard – Summary of income, expenses, and pending payments.


3. Invoice Generator – Create, download (PDF), and send invoices directly.


4. Expense Tracker – Log expenses, categorize, and visualize spending.


5. Client Management – Maintain client info and billing history.


6. Payment Tracking – Mark payments as received or pending; send reminders.


7. Reports & Analytics – Display charts for income, expense, and profit trends.


8. Cloud Sync – Data stored in cloud, accessible across devices.


9. Notifications – Alerts for upcoming payments or overdue invoices.


10. Multi-Currency Support – Allows billing in different currencie

Modules Description

Module Description

User Module Manages authentication, profile, and settings.
Invoice Module Creates, edits, and sends invoices; stores templates.
Expense Module Logs daily expenses and generates reports.
Client Module Stores client data and invoice history.
Report Module Generates visual analytics for income and expenses.
Notification Module Sends reminders and payment alerts.



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Technology Stack

Layer Technology

Frontend React Native / React.js
Backend Node.js + Express / Firebase Functions
Database Firestore / MongoDB
Authentication Firebase Auth
Cloud Storage Firebase Storage
Payment Gateway Stripe / PayPal
Charts [login to view URL] / Recharts
Version Control GitHub / Git
Hosting Firebase Hosting / Vercel



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Use Case Diagram (Text Representation)

Actors:

Freelancer (User)

System


Use Cases:

Login / Register

Create Invoice

Add Expense

Add Client

Generate Report

Track Payment

Receive Notification


Flow Example:

1. The user logs into the system.


2. The user adds client details.


3. The user creates an invoice.


4. The system stores and tracks the invoice status.


5. The system notifies the user of overdue payments.


6. The user views financial analytics on the dashboard.




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Future Scope

Integration with bank accounts for automatic transaction imports.

Addition of AI-based expense categorization.

Multi-user access for small teams.

Integration with tax filing systems (like GST / VAT).

Offline mode for data entry without internet." (client-provided description)