README

A comprehensive Laravel package for integrating with Pakistan's Federal Board of Revenue (FBR) Digital Invoicing System API v1.12.

Features

✅ Complete FBR API Integration - Full support for invoice submission and validation
✅ Reference Data APIs - Access to provinces, UOM, HS codes, SRO items, and more
✅ Multiple Environments - Sandbox and production environment support
✅ Fluent Builder Pattern - Easy-to-use invoice and item builders
✅ Database Models - Laravel Eloquent models with relationships
✅ Background Processing - Queue-based invoice submission with retry logic
✅ Comprehensive Validation - Built-in validation for all invoice data
✅ Error Handling - Detailed error reporting and logging
✅ QR Code Helpers - Generate QR codes as per FBR requirements
✅ Artisan Commands - Sync reference data and manage invoices
✅ 28 Scenarios Support - All FBR sandbox testing scenarios
✅ STATL Integration - Registration status validation
✅ Facade Support - Clean Laravel facade interface

Installation

Install the package via Composer:

composer require fbr/digital-invoicing

Publish the configuration file:

php artisan vendor:publish --provider="Fbr\DigitalInvoicing\FbrDigitalInvoicingServiceProvider" --tag="fbr-config"

Publish and run the migrations:

php artisan vendor:publish --provider="Fbr\DigitalInvoicing\FbrDigitalInvoicingServiceProvider" --tag="fbr-migrations"
php artisan migrate

Configuration

Add the following to your .env file:

# FBR API Configuration
FBR_BEARER_TOKEN=your_5_year_validity_token_here
FBR_SANDBOX=true
FBR_API_TIMEOUT=30
FBR_RETRY_ATTEMPTS=3

# Logging
FBR_LOGGING_ENABLED=true
FBR_LOG_CHANNEL=daily
FBR_LOG_LEVEL=info

The configuration file config/fbr-digital-invoicing.php contains all available options:

return [
    'bearer_token' => env('FBR_BEARER_TOKEN', ''),
    'sandbox' => env('FBR_SANDBOX', true),
    'urls' => [
        'sandbox' => 'https://gw.fbr.gov.pk/di_data/v1/di/',
        'production' => 'https://gw.fbr.gov.pk/di_data/v1/di/',
        'reference' => 'https://gw.fbr.gov.pk/pdi/v1/',
        'statl' => 'https://gw.fbr.gov.pk/dist/v1/',
    ],
    'qr_code' => [
        'version' => '2.0',
        'dimensions' => '1.0x1.0 Inch',
        'size' => '25x25',
    ],
    'timeout' => env('FBR_API_TIMEOUT', 30),
    'retry_attempts' => env('FBR_RETRY_ATTEMPTS', 3),
    'logging' => [
        'enabled' => env('FBR_LOGGING_ENABLED', true),
        'channel' => env('FBR_LOG_CHANNEL', 'daily'),
        'level' => env('FBR_LOG_LEVEL', 'info'),
    ],
];

Quick Start

Basic Invoice Creation and Submission

use Fbr\DigitalInvoicing\Facades\FbrDigitalInvoicing;
use Fbr\DigitalInvoicing\Builders\InvoiceBuilder;
use Fbr\DigitalInvoicing\Builders\InvoiceItemBuilder;

// Create invoice item
$item = (new InvoiceItemBuilder())
    ->setHsCode('0101.2100')
    ->setProductDescription('Test Product')
    ->setRate('18%')
    ->setUom('Numbers, pieces, units')
    ->setQuantity(1.0)
    ->setValueSalesExcludingST(1000.0)
    ->setSalesTaxApplicable(180.0)
    ->setSaleType('Goods at standard rate (default)')
    ->build();

// Create invoice
$invoice = (new InvoiceBuilder())
    ->setInvoiceType('Sale Invoice')
    ->setInvoiceDate('2025-08-04')
    ->setSeller('0786909', 'My Company', 'Sindh', 'Karachi')
    ->setBuyer('1000000000000', 'Customer Ltd', 'Punjab', 'Lahore', 'Registered')
    ->setScenarioId('SN001') // Only for sandbox
    ->addItem($item)
    ->build();

// Submit to FBR
$response = FbrDigitalInvoicing::postInvoiceData($invoice);

if ($response->isValid()) {
    echo "Invoice submitted successfully!";
    echo "FBR Invoice Number: " . $response->invoiceNumber;
} else {
    echo "Submission failed: " . implode(', ', $response->getErrors());
}

Validation Before Submission

// First validate the invoice
$validationResponse = FbrDigitalInvoicing::validateInvoiceData($invoice);

if ($validationResponse->isValid()) {
    // Now submit
    $submitResponse = FbrDigitalInvoicing::postInvoiceData($invoice);
    
    if ($submitResponse->isValid()) {
        echo "Invoice submitted successfully!";
    }
}

Using Database Models

use Fbr\DigitalInvoicing\Models\Invoice;
use Fbr\DigitalInvoicing\Jobs\SubmitInvoiceJob;

// Save invoice to database
$invoice = Invoice::createFromInvoiceData($invoiceData);

// Submit via background job
SubmitInvoiceJob::dispatch($invoice)->onQueue('fbr-invoices');

// Check status later
if ($invoice->isValid()) {
    echo "Invoice processed successfully!";
    echo "FBR Number: " . $invoice->getFbrInvoiceNumber();
}

Supported Scenarios

The package supports all 28 official FBR sandbox testing scenarios based on "DI Scenarios Description for Sandbox Testing" v1.11:

Manufacturing & Standard Sales (SN001-SN009)

SN001: Sale of Standard Rate Goods to Registered Buyers

Sale of goods subject to the standard sales tax rate made to sales tax registered buyers
Buyers can usually claim input tax credits
Rate: 18% | Buyer: Registered | Example: General manufacturing sales

SN002: Sale of Standard Rate Goods to Unregistered Buyers

Standard rate goods sold to buyers who are not registered for sales tax (B2C sales)
Rate: 18% | Buyer: Unregistered | Example: Retail sales to consumers

SN003: Sale of Steel (Melted and Re-Rolled) - Billets, Ingots and Long Bars

Steel sector governed by strict traceability and sector-specific rules
Rate: 18% | Buyer: Unregistered | Example: Steel manufacturing

SN004: Sale of Steel Scrap by Ship Breakers

Ship breakers dismantle old ships and recover scrap steel with special tax treatment
Rate: 18% | Buyer: Unregistered | Example: Ship breaking industry

SN005: Sales of Reduced Rate Goods (Eighth Schedule)

Goods taxed at reduced sales tax rate to encourage affordability
Rate: 1% | Buyer: Unregistered | Example: Essential commodities, basic food items

SN006: Sale of Exempt Goods (Sixth Schedule)

Goods listed in the Sixth Schedule are exempt from sales tax
Rate: Exempt | Buyer: Registered | Example: Agricultural products, medicines

SN007: Sale Of Zero-Rated Goods (Fifth Schedule)

Zero-rated goods charged at 0% but seller can claim input tax credits
Rate: 0% | Buyer: Unregistered | Example: Exported goods

SN008: Sale of 3rd Schedule Goods

Items subject to sales tax based on printed retail price rather than transaction value
Rate: 18% | Buyer: Unregistered | Example: Branded consumer products

SN009: Purchase From Registered Cotton Ginners

Purchases from registered cotton ginners, subject to specific cotton trade taxation rules
Rate: 18% | Buyer: Registered | Example: Cotton industry trade

Services & Specialized Industries (SN010-SN019)

SN010: Sale Of Telecom Services by Mobile Operators

Mobile operators providing telecom services (calls, data, SMS)
Rate: 17% | Buyer: Unregistered | Example: Telecom services

SN011: Sale of Steel through Toll Manufacturing - Billets, Ingots and Long Bars

Third-party processing raw steel into finished products
Rate: 18% | Buyer: Unregistered | Example: Steel toll manufacturing

SN012: Sale Of Petroleum Products

Petroleum products with distinct sales tax rates or federal excise duties
Rate: 1.43% | Buyer: Unregistered | Example: Petrol, diesel, lubricants

SN013: Sale Of Electricity to Retailers

Selling electricity to retailers who distribute to end consumers
Rate: 5% | Buyer: Unregistered | Example: Power distribution

SN014: Sale of Gas to CNG Stations

Natural gas sold to CNG filling stations with special tax treatment
Rate: 18% | Buyer: Unregistered | Example: CNG supply

SN015: Sale of Mobile Phones

Sales of mobile handsets with additional duties or regulatory charges
Rate: 18% | Buyer: Unregistered | Example: Mobile phone sales

SN016: Processing / Conversion of Goods

Services where raw materials are converted into finished products
Rate: 5% | Buyer: Unregistered | Example: Manufacturing services

SN017: Sale of Goods Where FED Is Charged in ST Mode

Federal Excise Duty collected through the sales tax system
Rate: 8% | Buyer: Unregistered | Example: FED-applicable goods

SN018: Sale Of Services Where FED Is Charged in ST Mode

Services (advertisement, franchise, insurance) liable to FED via sales tax framework
Rate: 8% | Buyer: Unregistered | Example: Advertisement services

SN019: Sale of Services (as per ICT Ordinance)

IT services taxed under ICT ordinance with variations in rates or exemptions
Rate: 5% | Buyer: Unregistered | Example: Software development, IT consultancy

Specialized Products & Retail (SN020-SN028)

SN020: Sale of Electric Vehicles

Electric vehicles incentivized through reduced sales tax rates
Rate: 1% | Buyer: Unregistered | Example: EV sales

SN021: Sale of Cement /Concrete Block

Cement and concrete blocks with strict regulation due to environmental impact
Rate: Rs.3 per unit | Buyer: Unregistered | Example: Construction materials

SN022: Sale of Potassium Chlorate

Sensitive chemical subject to fixed tax per kilogram rather than value
Rate: 18% + Rs.60 per kg | Buyer: Unregistered | Example: Chemical manufacturing

SN023: Sale of CNG

Compressed Natural Gas with regulated pricing and specific tax treatments
Rate: Rs.200 per unit | Buyer: Unregistered | Example: CNG stations

SN024: Sale Of Goods Listed in SRO 297(1)/2023

Specific goods subject to reduced, conditional, or fixed-rate taxation
Rate: 25% | Buyer: Unregistered | Example: Solar equipment, medical devices

SN025: Drugs Sold at Fixed ST Rate Under Serial 81 Of Eighth Schedule Table 1

Pharmaceutical products at fixed sales tax rate to make medicines affordable
Rate: 0% | Buyer: Unregistered | Example: Essential medicines

SN026: Sale Of Goods at Standard Rate to End Consumers by Retailers

Retailers selling taxable goods directly to end consumers
Rate: 18% | Buyer: Registered | Example: Retail sales

SN027: Sale Of 3rd Schedule Goods to End Consumers by Retailers

Retailers selling 3rd Schedule goods based on maximum retail price (MRP)
Rate: 18% | Buyer: Registered | Example: FMCG retail

SN028: Sale of Goods at Reduced Rate to End Consumers by Retailers

Essential goods at reduced tax rate to keep vital products affordable
Rate: 1% | Buyer: Registered | Example: Baby milk, books

Using Scenarios in Code

use Fbr\DigitalInvoicing\Constants\Scenarios;

// Get scenario details
$scenario = Scenarios::getScenario('SN001');
echo $scenario['description'];

// Generate invoice for specific scenario
$invoice = Scenarios::generateScenarioInvoice('SN001');

// Get scenarios by business type
$manufacturerScenarios = Scenarios::getScenariosByBusinessType('manufacturer');
$retailerScenarios = Scenarios::getScenariosByBusinessType('retailer');
$serviceScenarios = Scenarios::getScenariosByBusinessType('service_provider');

// Get sample data for testing
$sampleData = Scenarios::getScenarioSampleData('SN001');

Reference Data APIs

Access FBR reference data easily:

// Get provinces
$provinces = FbrDigitalInvoicing::getProvinces();

// Get UOM codes  
$uoms = FbrDigitalInvoicing::getUomCodes();

// Get HS codes
$hsCodes = FbrDigitalInvoicing::getItemDescCodes();

// Get SRO items
$sroItems = FbrDigitalInvoicing::getSroItemCodes();

// Check STATL registration
$statlStatus = FbrDigitalInvoicing::checkStatl('0786909', '2025-08-04');

// Get registration type
$regType = FbrDigitalInvoicing::getRegistrationType('0786909');

Artisan Commands

Sync Reference Data

# Sync all reference data
php artisan fbr:sync

# Sync specific data types
php artisan fbr:sync --type=provinces
php artisan fbr:sync --type=uom
php artisan fbr:sync --type=hscodes

# Force refresh cached data
php artisan fbr:sync --force

# Submit pending invoices
php artisan fbr:sync --submit-pending

Available sync types:

provinces - Province codes
uom - Unit of measurement codes
doctypes - Document type codes
hscodes - Harmonized system codes
sroitems - SRO item codes
transtypes - Transaction type codes
all - All reference data (default)

Queue Configuration

For background processing, configure your queues:

// config/queue.php
'connections' => [
    'database' => [
        // ... other config
        'queue' => 'fbr-invoices', // Dedicated queue for FBR jobs
    ],
],

Run queue worker:

php artisan queue:work --queue=fbr-invoices

QR Code Generation

Generate QR codes as per FBR requirements:

use Fbr\DigitalInvoicing\Helpers\QrCodeHelper;

// Generate QR data from invoice model
$qrData = QrCodeHelper::generateQrDataString($invoice);

// Generate QR data from response
$qrData = QrCodeHelper::generateQrDataFromResponse($response, $sellerNtn, $buyerNtn, $totalAmount);

// Get QR specifications
$specs = QrCodeHelper::getQrSpecifications();
// Returns: ['version' => '2.0', 'size' => '25x25', 'dimensions' => '1.0x1.0 Inch']

// Validate and decode QR data
if (QrCodeHelper::validateQrData($qrData)) {
    $decoded = QrCodeHelper::decodeQrData($qrData);
}

Error Handling

The package provides comprehensive error handling:

use Fbr\DigitalInvoicing\Exceptions\FbrDigitalInvoicingException;

try {
    $response = FbrDigitalInvoicing::postInvoiceData($invoice);
} catch (FbrDigitalInvoicingException $e) {
    // FBR API specific errors
    echo "FBR Error: " . $e->getMessage();
    echo "HTTP Status: " . $e->getCode();
} catch (\Exception $e) {
    // General errors
    echo "Error: " . $e->getMessage();
}

// Check response for validation errors
if (!$response->isValid()) {
    foreach ($response->getErrors() as $error) {
        echo "Error: " . $error;
    }
}

Database Models

Invoice Model

$invoice = Invoice::find(1);

// Check status
$invoice->isPending();    // Check if pending
$invoice->isSubmitted();  // Check if submitted  
$invoice->isValid();      // Check if valid
$invoice->isFailed();     // Check if failed

// Get FBR details
$invoice->getFbrInvoiceNumber();
$invoice->getValidationErrors();

// Convert to DTO
$invoiceData = $invoice->toInvoiceData();

// Relationships
$invoice->items;  // Get invoice items

InvoiceItem Model

$item = InvoiceItem::find(1);

// Check status
$item->isValid();
$item->isPending();
$item->isInvalid();

// Calculate amounts
$item->getTotalAmount();  // Total including all taxes
$item->getNetAmount();    // Net after withholding

// Get FBR details
$item->getFbrItemInvoiceNumber();

// Relationships
$item->invoice;  // Get parent invoice

Testing

The package includes comprehensive tests:

composer test

Example Integration

See the examples/basic-usage.php file for comprehensive usage examples covering:

Basic invoice creation and submission
Validation before submission
Using database models and background jobs
Fetching reference data
Creating scenario-based invoices
Checking registration status

Error Codes

The package handles all FBR error codes as documented in the API specification:

Sales Error Codes (0001-0300, 0401-0402)

Purchase Error Codes (0156-0177)

Common error codes:

0001 - Seller not registered for sales tax
0002 - Invalid Buyer Registration No or NTN
0005 - Invalid date format
0052 - Invalid HS Code
0401 - Unauthorized seller access
0402 - Unauthorized buyer access

API Rate Limiting

The package includes built-in retry logic with exponential backoff:

Timeout: 30 seconds (configurable)
Retry Attempts: 3 (configurable)
Backoff: Progressive delay between retries
Server Errors: Automatically retried
Client Errors: Not retried (4xx status codes)

Logging

All API interactions are logged when enabled:

// Check logs for detailed API interactions
tail -f storage/logs/laravel.log

Log entries include:

Request/response details
Error information
Performance metrics
Retry attempts

Production Considerations

Environment Configuration:

FBR_SANDBOX=false  # Switch to production

Queue Workers: Set up supervised queue workers
Monitoring: Monitor queue jobs and failed jobs
Caching: Reference data is cached for 30 days by default
Logging: Review logs regularly for errors
Rate Limiting: Respect FBR API rate limits

Security

Never commit your bearer token to version control
Use environment variables for all sensitive configuration
Regularly rotate your bearer token (5-year validity)
Monitor API usage and unauthorized access attempts
Follow Laravel security best practices

Contributing

Please see CONTRIBUTING for details.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

Changelog

Please see CHANGELOG for more information on what has changed recently.

Credits

License

The MIT License (MIT). Please see License File for more information.

Support

📧 Email: inayatullahkks@gmail.com
📖 Documentation: Full Documentation
🐛 Issues: GitHub Issues
💬 Discussions: GitHub Discussions

Disclaimer: This package is not officially affiliated with FBR Pakistan. It is a third-party integration built according to the official FBR Digital Invoicing API specification v1.12.

fbr/digital-invoicing

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