Build SaaS App in Laravel 12 (Multi-Tenant Step-by-Step Guide 2026)

Build SaaS App in Laravel 12: In this step-by-step guide, you will learn how to build a SaaS (Software as a Service) application using Laravel 12 with multi-tenant functionality.

SaaS applications allow multiple users to use the same system while keeping their data separate. This is commonly used in CRM systems, billing platforms, and project management tools.

📌 What You Will Build

• Multi-tenant system
• User authentication system
• Tenant-based data separation
• Simple dashboard

Step 1. Install Laravel

composer create-project laravel/laravel saas-app
cd saas-app

Step 2. Setup Authentication

composer require laravel/breeze --dev
php artisan breeze:install
npm install && npm run build
php artisan migrate

Step 3. Add Tenant Column

$table->string('tenant_id')->nullable();

php artisan migrate

Step 4. Assign Tenant ID

use Illuminate\Support\Str;

$user = User::create([
    'name' => $request->name,
    'email' => $request->email,
    'password' => Hash::make($request->password),
    'tenant_id' => Str::uuid()
]);

Step 5. Create Model & Migration

php artisan make:model Project -m

$table->string('tenant_id');
$table->string('title');
$table->text('description');

php artisan migrate

Step 6. Store Tenant Data

protected static function booted()
{
    static::creating(function ($model) {
        $model->tenant_id = auth()->user()->tenant_id;
    });
}

Step 7. Create Controller

php artisan make:controller ProjectController

use App\Models\Project;

public function index()
{
    $projects = Project::where('tenant_id', auth()->user()->tenant_id)->get();
    return view('dashboard', compact('projects'));
}

public function store(Request $request)
{
    Project::create($request->all());
    return back();
}

Step 8. Blade View

<h2>My Projects</h2>

<form method="POST" action="/projects">
    @csrf
    <input type="text" name="title" placeholder="Title">
    <textarea name="description"></textarea>
    <button>Add</button>
</form>

@foreach($projects as $project)
    <div>
        <h3>{{ $project->title }}</h3>
        <p>{{ $project->description }}</p>
    </div>
@endforeach

🔥 How It Works

• Each user gets a unique tenant ID
• Data is filtered per tenant
• Users only see their own data

✅ Real Use Case

• CRM systems
• Subscription SaaS platforms
• Project management tools

🚀 Conclusion

You have successfully built a basic SaaS application in Laravel 12. This is the foundation of scalable SaaS platforms used in real-world applications.

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(Swapinfoway Founder)

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Haresh Chauhan

(Co-Founder)