diff --git a/app/Models/Incoming.php b/app/Models/Incoming.php
new file mode 100644
index 0000000..eb4c005
--- /dev/null
+++ b/app/Models/Incoming.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class Incoming extends Model
+{
+    public $timestamps = false;
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = [
+        'supplier_id',
+        'invoice_number',
+        'issue_date',
+        'due_date',
+        'invoice_type_code',
+        'currency_code',
+        'net',
+        'gross',
+        'tax',
+        'pay_date',
+    ];
+
+    /**
+     * Get the supplier of the incoming invoice.
+     */
+    public function supplier(): BelongsTo
+    {
+        return $this->belongsTo(Supplier::class);
+    }
+
+    /**
+     * Get the items (invoice positions) of this incoming invoice.
+     */
+    public function items(): HasMany
+    {
+        return $this->hasMany(Incomingitem::class);
+    }
+
+    /**
+     * Get the tax subtotals for the incoming invoice.
+     */
+    public function taxes(): HasMany
+    {
+        return $this->hasMany(Incomingtax::class);
+    }
+
+}
diff --git a/app/Models/Incomingitem.php b/app/Models/Incomingitem.php
new file mode 100644
index 0000000..6b05f77
--- /dev/null
+++ b/app/Models/Incomingitem.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Incomingitem extends Model
+{
+    public $timestamps = false;
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = [
+        'incoming_id',
+        'name',
+        'article_number',
+        'description',
+        'amount',
+        'discount',
+        'tax',
+        'price',
+        'total',
+    ];
+
+    /**
+     * Get the invoice the item belongs to.
+     */
+    public function incoming(): BelongsTo
+    {
+        return $this->belongsTo(Incoming::class);
+    }
+}
diff --git a/app/Models/Incomingtax.php b/app/Models/Incomingtax.php
new file mode 100644
index 0000000..b104bb7
--- /dev/null
+++ b/app/Models/Incomingtax.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class Incomingtax extends Model
+{
+    public $timestamps = false;
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = [
+        'incoming_id',
+        'taxable_amount',
+        'amount',
+        'percentage',
+        'currency',
+    ];
+
+    /**
+     * Get the incoming invoice this tax belongs to.
+     */
+    public function incoming(): BelongsTo
+    {
+        return $this->belongsTo(Incoming::class);
+    }
+}
diff --git a/app/Models/Supplier.php b/app/Models/Supplier.php
new file mode 100644
index 0000000..d3ff229
--- /dev/null
+++ b/app/Models/Supplier.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Supplier extends Model
+{
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = [
+        'name',
+        'registration_name',
+        'email',
+        'address',
+        'city',
+        'zip',
+        'country_code',
+        'tax_fc',
+        'tax_vat',
+        'contact_name',
+        'contact_phone',
+        'contact_email',
+    ];
+
+    /**
+     * Get the supplier's incoming invoices.
+     */
+    public function invoices(): HasMany
+    {
+        return $this->hasMany(Incoming::class);
+    }
+}
diff --git a/database/migrations/2025_01_18_080700_create_suppliers_table.php b/database/migrations/2025_01_18_080700_create_suppliers_table.php
new file mode 100644
index 0000000..54e9067
--- /dev/null
+++ b/database/migrations/2025_01_18_080700_create_suppliers_table.php
@@ -0,0 +1,41 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('suppliers', function (Blueprint $table) {
+            $table->id();
+
+            $table->string('name');
+            $table->string('registration_name')->nullable();
+            $table->string('email')->nullable();
+            $table->string('address')->nullable();
+            $table->string('city')->nullable();
+            $table->string('zip')->nullable();
+            $table->string('country_code')->default('DE')->nullable();
+            $table->string('tax_fc')->nullable();
+            $table->string('tax_vat')->nullable();
+            $table->string('contact_name')->nullable();
+            $table->string('contact_phone')->nullable();
+            $table->string('contact_email')->nullable();
+
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('suppliers');
+    }
+};
diff --git a/database/migrations/2025_01_18_090301_create_incomings_table.php b/database/migrations/2025_01_18_090301_create_incomings_table.php
new file mode 100644
index 0000000..c1b4c8b
--- /dev/null
+++ b/database/migrations/2025_01_18_090301_create_incomings_table.php
@@ -0,0 +1,38 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('incomings', function (Blueprint $table) {
+            $table->id();
+
+            $table->foreignId('supplier_id')->constrained();
+
+            $table->string('invoice_number');
+            $table->date('issue_date');
+            $table->date('due_date')->nullable();
+            $table->string('invoice_type_code')->default('380');
+            $table->string('currency_code')->default('EUR');
+            $table->decimal('net');
+            $table->decimal('gross');
+            $table->decimal('tax');
+            $table->date('pay_date')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('incomings');
+    }
+};
diff --git a/database/migrations/2025_01_18_090325_create_incomingitems_table.php b/database/migrations/2025_01_18_090325_create_incomingitems_table.php
new file mode 100644
index 0000000..3e822a2
--- /dev/null
+++ b/database/migrations/2025_01_18_090325_create_incomingitems_table.php
@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('incomingitems', function (Blueprint $table) {
+            $table->id();
+
+            $table->foreignId('incoming_id')->constrained();
+
+            $table->string('name');
+            $table->string('article_number')->nullable();
+            $table->text('description')->nullable();
+            $table->decimal('amount', 8, 2);
+            $table->decimal('discount', 8, 2)->nullable();
+            $table->decimal('tax', 8, 2);
+            $table->decimal('price', 8, 2);
+            $table->decimal('total', 8, 2);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('incomingitems');
+    }
+};
diff --git a/database/migrations/2025_01_18_093131_create_incomingtaxes_table.php b/database/migrations/2025_01_18_093131_create_incomingtaxes_table.php
new file mode 100644
index 0000000..8fd7f38
--- /dev/null
+++ b/database/migrations/2025_01_18_093131_create_incomingtaxes_table.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('incomingtaxes', function (Blueprint $table) {
+            $table->id();
+
+            $table->foreignId('incoming_id')->constrained();
+
+            $table->decimal('taxable_amount', 8, 2)->default(0);
+            $table->decimal('amount', 8, 2)->default(0);
+            $table->decimal('percentage', 8, 2)->default(0);
+            $table->string('currency')->default('EUR');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('incomingtaxes');
+    }
+};