# Payroll System Implementation Summary

## Overview
A comprehensive payroll management system has been implemented with EPF/ETF calculations, salary advances, loans, and employee self-service features.

## Features Implemented

### 1. EPF/ETF Calculations
- **Employee Contributions:**
  - EPF: 8% of gross salary
  - ETF: 3% of gross salary
  
- **Employer Contributions:**
  - EPF: 12% of gross salary
  - ETF: 3% of gross salary

### 2. Database Structure

#### Users Table (Extended)
- `epf_number` - Employee's EPF registration number
- `etf_number` - Employee's ETF registration number
- `bank_name` - Bank name for salary transfers
- `bank_account_number` - Account number
- `bank_branch` - Bank branch

#### Payrolls Table
- Complete salary breakdown per month
- Basic salary, commissions, gross salary
- EPF/ETF employee and employer contributions
- Salary advance and loan deductions
- Net salary calculation
- Status tracking (pending, processed, paid)

#### Salary Advances Table
- Track salary advances given to employees
- Automatic deduction tracking
- Status: pending, partially_deducted, fully_deducted

#### Loans Table
- Employee loans with installment-based repayment
- Monthly installment tracking
- Automatic deduction from salary
- Status: active, completed, cancelled

### 3. Admin Features

#### Payroll Management (`/admin/payroll`)
- View all employees' payroll for any month
- Generate payroll with automatic calculations
- See EPF/ETF breakdowns (employee + employer)
- View salary advances and loan deductions
- Update employee EPF/ETF and bank details inline
- Mark payroll as paid
- Export/print capabilities

#### Salary Advances (`/admin/salary-advances`)
- Create salary advances for employees
- Track deduction status
- Automatic deduction during payroll generation

#### Loans (`/admin/loans`)
- Create employee loans
- Set installment amounts and duration
- Automatic monthly deduction
- Track repayment progress

### 4. Sales Representative Features

#### My Salary (`/sales/my-salary`)
- View current month payroll summary
- Complete payroll history
- EPF/ETF details
- Salary advances status
- Loan repayment progress
- Update bank account details

#### My Profile (`/sales/my-profile`)
- View personal information
- Update bank details for salary transfer
- View EPF/ETF numbers
- Educational information about EPF/ETF

### 5. Calculation Logic

**Gross Salary = Basic Salary + Total Commission**

**Deductions:**
1. EPF Employee (8% of gross)
2. ETF Employee (3% of gross)
3. Salary Advances (up to 50% of gross per month)
4. Loan Installments (fixed monthly amount)
5. Other Deductions (if any)

**Net Salary = Gross Salary - Total Deductions**

**Employer Costs:**
- EPF Employer: 12% of gross
- ETF Employer: 3% of gross

### 6. Routes Added

**Admin Routes:**
- GET `/admin/payroll` - Payroll index
- POST `/admin/payroll/generate` - Generate monthly payroll
- GET `/admin/payroll/{id}` - View payroll details
- POST `/admin/payroll/{id}/mark-paid` - Mark as paid
- POST `/admin/payroll/{id}/update-details` - Update employee details
- Resource `/admin/salary-advances` - Manage salary advances
- Resource `/admin/loans` - Manage loans

**Sales Rep Routes:**
- GET `/sales/my-salary` - View salary dashboard
- GET `/sales/my-salary/{id}` - View payroll details
- GET `/sales/my-profile` - View/edit profile
- POST `/sales/my-profile` - Update bank details

### 7. Navigation Updates
- Added "Payroll", "Salary Advances", and "Loans" to admin sidebar
- Added "My Salary" to sales rep sidebar

## How to Use

### For Admins:

1. **Set up employee details:**
   - Go to Payroll page
   - Click "Add Details" for each employee
   - Enter EPF number, ETF number, and bank details

2. **Generate monthly payroll:**
   - Select month and payment date
   - Click "Generate Payroll"
   - System automatically calculates all deductions
   - Review and mark as paid when processed

3. **Manage salary advances:**
   - Go to Salary Advances
   - Create new advance for employee
   - System automatically deducts from next payroll

4. **Manage loans:**
   - Go to Loans
   - Create loan with installment details
   - System automatically deducts monthly installment

### For Sales Representatives:

1. **View salary:**
   - Go to "My Salary" in navigation
   - See current month summary
   - View complete payroll history

2. **Update bank details:**
   - Click "Update Bank Details" or go to "My Profile"
   - Enter bank information
   - Save changes

3. **Track deductions:**
   - View salary advances status
   - See loan repayment progress
   - Understand EPF/ETF contributions

## Database Migration
Run: `php artisan migrate`

This will create:
- payrolls table
- salary_advances table
- loans table
- Add EPF/ETF and bank fields to users table

## Next Steps
1. Test payroll generation
2. Add sample data for testing
3. Consider adding payroll reports/exports
4. Implement email notifications for payslips
5. Add payroll approval workflow if needed
