diff --git a/Category.php b/Category.php
new file mode 100644
index 0000000..48eeee1
--- /dev/null
+++ b/Category.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Category extends Model
+{
+    public function receipt_items()
+    {
+        return $this->belongsTo('App\Models\ReceiptItem');
+    }
+
+    public function services()
+    {
+        return $this->belongsToMany('App\Models\Service', 'categories_services', 'category_id', 'service_id')->withTimestamps();;
+    }
+
+    protected $hidden = [
+        'pivot'
+    ];
+}
diff --git a/CategoryService.php b/CategoryService.php
new file mode 100644
index 0000000..9b39771
--- /dev/null
+++ b/CategoryService.php
@@ -0,0 +1,10 @@
+<?php
+ 
+namespace App;
+ 
+use Illuminate\Database\Eloquent\Model;
+ 
+class CategoryService extends Model
+{
+     
+}
\ No newline at end of file
diff --git a/Receipt.php b/Receipt.php
new file mode 100644
index 0000000..a465184
--- /dev/null
+++ b/Receipt.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Receipt extends Model
+{
+    protected $fillable = ['id', 'payment_date', 'payment_amount', 'user_id', 'store_id', 'created_at', 'updated_at'];
+
+    public function user()
+    {
+        return $this->belongsTo('App\User');
+    }
+
+    public function store()
+    {
+        return $this->belongsTo('App\User');
+    }
+
+    public function receipt_items()
+    {
+        return $this->hasMany('App\Models\ReceiptItem');
+    }
+}
diff --git a/ReceiptItem.php b/ReceiptItem.php
new file mode 100644
index 0000000..d4780c6
--- /dev/null
+++ b/ReceiptItem.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ReceiptItem extends Model
+{
+    protected $table = 'receipt_items';
+    protected $fillable = ['id', 'name', 'price', 'quantity' , 'receipt_id', 'category_id', 'created_at', 'updated_at'];
+
+    public function receipts()
+    {
+        return $this->belongsTo('App\Models\Receipt');
+    }
+
+    public function categories()
+    {
+        return $this->hasMany('App\Models\Category');
+    }
+}
diff --git a/Service.php b/Service.php
new file mode 100644
index 0000000..14b80fd
--- /dev/null
+++ b/Service.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Notifications\Notifiable;
+use Illuminate\Contracts\Auth\MustVerifyEmail;
+use Illuminate\Foundation\Auth\User as Authenticatable;
+
+class Service extends Authenticatable
+{
+    use Notifiable;
+
+    protected $guard = "service";
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array
+     */
+    protected $fillable = [
+        'id', 'name', 'street', 'city', 'vovivodeship', 'longitude', 'latitude', 'created_at', 'updated_at', 'email', 'password'
+    ];
+
+    /**
+     * The attributes that should be hidden for arrays.
+     *
+     * @var array
+     */
+    protected $hidden = [
+        'password', 'remember_token', 'pivot'
+    ];
+
+    /**
+     * The attributes that should be cast to native types.
+     *
+     * @var array
+     */
+    protected $casts = [
+        'email_verified_at' => 'datetime',
+    ];
+
+    public function users()
+    {
+        return $this->belongsToMany('App\Models\Category', 'categories_services')->withTimestamps();;
+    }
+}