Software Requirements Specification (SRS) for Freelancer Income Tax Calculator

Introduction

Purpose:

The purpose of this document is to define the requirements for the development of a Freelancer Income Tax Calculator. This web-based application aims to help freelancers estimate their income tax liability, considering deductions and exemptions.

Scope:

The Freelancer Income Tax Calculator will provide freelancers with an interface to input details such as income sources, deductions, exemptions, and other relevant parameters. The application will calculate and display the estimated income tax liability.

System Overview

System Description:

The system will be a client-server application. Freelancers will access the Freelancer Income Tax Calculator through a web browser. The server will handle the logic for income tax calculations

System Architecture:

The application will follow a three-tier architecture: presentation layer (client-side browser), application layer (server-side processing), and data layer (storage and retrieval of data).

Functional Requirements

Use Cases:

Estimate Income Tax Liability:

• Freelancers can input details such as income from different sources (services, projects, etc.), deductions (business expenses, eligible deductions), exemptions, and other relevant parameters.
• The system will calculate and display the estimated income tax liability based on the entered details.

Functional Requirements:

Input:

The system shall allow freelancers to enter the following details:

• Income from Freelancing Services (Decimal)
• Income from Other Sources (Decimal)
• Business Expenses (Decimal)
• Eligible Deductions (Text or Structured Data)
• Exemptions (Text or Structured Data)
• Other Relevant Parameters (if applicable)

Calculation:

• The system shall calculate the estimated income tax liability based on the entered details.

Output:

• The system shall display the calculated estimated income tax liability to the freelancer.

External Interface Requirements

 User Interfaces:

• The user interface shall consist of input fields for income details, deductions, exemptions, and a “Calculate” button.
• The calculated estimated income tax liability shall be displayed prominently.

Hardware Interfaces:

The system should be compatible with standard computing hardware.

Software Interfaces:

• The application will be developed using HTML, CSS, and JavaScript for the frontend.
• The backend can be implemented using a server-side framework (e.g., Node.js, Django) with a database for data storage.

Communication Interfaces:

The application will communicate with the server for income tax calculations.

Performance Requirements

Response Time:

The system should provide a response time of under 3 seconds for a typical user input.

Throughput:

The application should handle at least 50 simultaneous users.

System Constraints

Regulatory Requirements:

The application should comply with relevant tax regulations and laws.

Hardware Limitations:

The system should be compatible with devices supporting standard web browsers.

Security Requirements

Authentication:

User authentication may be implemented for personalized features.

Data Protection:

User data, if stored, should be securely protected.

Quality Attributes

Reliability:

The application should provide accurate estimates of income tax liability based on the entered details.

Maintainability:

The code should be well-documented for ease of maintenance.

Usability:

The user interface should be intuitive, requiring minimal guidance.

Testing Requirements

Test Cases:

Test cases should cover various scenarios with different income details, deductions, exemptions, and other parameters to ensure accurate estimates of income tax liability.

• Test Case 1:

  • Inputs: Income from Freelancing Services = $50,000, Income from Other Sources = $5,000, Business Expenses = $10,000, Eligible Deductions = $5,000, Exemptions = $2,000.
  • Expected Output: Calculate estimated income tax liability.

• Test Case 2:

• • Inputs: Income from Freelancing Services = 3,00,000 INR, Income from Other Sources = 20,000 INR, Business Expenses = 50,000 INR, Eligible Deductions = 10,000 INR, Exemptions = 5,000 INR.
  • Expected Output: Calculate estimated income tax liabilit

Acceptance Criteria:

The application is considered successful if it produces correct estimates of income tax liability based on the provided details.

Project Timeline

Milestones:

Design, Development, Testing, Deploymen

Development Phases:

Frontend development, Backend development, Testing, Deployment.

Glossary

None

Database Structure

Tables:

FreelancerIncomeTax_Calculator_Records:

• RecordID (Primary Key, Auto-increment)
• UserID (Foreign Key, if user accounts are implemented)
• IncomeFromFreelancing (Decimal)
• IncomeFromOtherSources (Decimal)
• BusinessExpenses (Decimal)
• EligibleDeductions (Text or Structured Data)
• Exemptions (Text or Structured Data)
• EstimatedTaxLiability (Decimal)
• CalculationDate (DateTime)

Conclusion

This SRS document outlines the requirements for the Freelancer Income Tax Calculator. It serves as a guide for the development team and ensures that the application meets the specified criteria. Review and approval by relevant stakeholders are essential before proceeding with the development phase.