Invoicing

Generate invoices and credit notes from payments and subscriptions.

Invoice Generator

use Frolax\Payment\Services\InvoiceGenerator;
use Frolax\Payment\Models\Payment;

$generator = app(InvoiceGenerator::class);

// From a payment
$payment = Payment::find($id);
$invoice = $generator->fromPayment($payment);

// From a subscription
$invoice = $generator->fromSubscription($subscription);

// Issue a credit note
$creditNote = $generator->issueCreditNote($invoice, 50.00, 'Partial refund');

Tax Calculation

use Frolax\Payment\Services\TaxCalculator;

$calculator = app(TaxCalculator::class);

// Calculate taxes for a region
$taxes = $calculator->calculate(100.00, 'US', 'CA');
// Returns: ['tax_amount' => 7.25, 'rates' => [...]]

Models

Invoice

• markPaid(), markVoid() — state management
• items() — line items relationship
• creditNotes() — issued credit notes
• payment(), subscription() — parent relationships

TaxRate

• calculate($amount) — computes tax for inclusive/exclusive rates
• Scoped by region and active status

Database Tables

• payment_invoices — invoice records with status and totals
• payment_invoice_items — individual line items
• payment_credit_notes — partial and full credit notes
• payment_tax_rates — configurable tax rates by region