How much does subscription billing cost to build in a Laravel SaaS?

Subscription billing in Laravel is one of the lower cost components because Laravel Cashier handles most of the heavy lifting for Stripe and Paddle. A standard subscription system (plans, trials, upgrades, downgrades, proration, dunning, invoices) typically adds $4,000 to $12,000 to a build. Complexity grows the cost: usage based or metered billing, multi currency, tax automation through Stripe Tax or Avalara, and complex enterprise contracts can push billing to $15,000 to $30,000. Cashier keeps the baseline affordable; the cost comes from billing logic specific to your pricing model.