diff --git a/packages/admin/src/Resources/Resource.php b/packages/admin/src/Resources/Resource.php
index 7e00ae3ea4..30b5ed6f57 100644
--- a/packages/admin/src/Resources/Resource.php
+++ b/packages/admin/src/Resources/Resource.php
@@ -17,9 +17,14 @@ use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\Route;
 use Illuminate\Support\Str;
 use Illuminate\Support\Stringable;
+use Illuminate\Support\Traits\Macroable;
 
 class Resource
 {
+    use Macroable {
+        __call as dynamicMacroCall;
+    }
+
     protected static ?string $breadcrumb = null;
 
     protected static bool $isGloballySearchable = true;
diff --git a/packages/forms/docs/03-fields.md b/packages/forms/docs/03-fields.md
index d9ba3a749e..ee3d2d2764 100644
--- a/packages/forms/docs/03-fields.md
+++ b/packages/forms/docs/03-fields.md
@@ -316,6 +316,30 @@ TextInput::make('password')
 
 For more complex autocomplete options, text inputs also support [datalists](#datalists).
 
+#### Phone number validation
+
+When using a `tel()` field, the value will be validated using: `/^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\.\/0-9]*$/`.
+
+If you wish to change that, then you can use the `telRegex()` method:
+
+```php
+use Filament\Forms\Components\TextInput;
+
+TextInput::make('phone')
+    ->tel()
+    ->telRegex('/^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\.\/0-9]*$/')
+```
+
+Alternatively, to customize the `telRegex()` across all fields, use a service provider:
+
+```php
+use Filament\Forms\Components\TextInput;
+
+TextInput::configureUsing(function (TextInput $component): void {
+    $component->telRegex('/^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\.\/0-9]*$/');
+});
+```
+
 ### Affixes
 
 You may place text before and after the input using the `prefix()` and `suffix()` methods:
diff --git a/packages/forms/src/Components/TextInput.php b/packages/forms/src/Components/TextInput.php
index 4a61edd7d3..e4465aeb8c 100644
--- a/packages/forms/src/Components/TextInput.php
+++ b/packages/forms/src/Components/TextInput.php
@@ -40,6 +40,8 @@ class TextInput extends Field implements Contracts\CanBeLengthConstrained, CanHa
 
     protected $minValue = null;
 
+    protected string | Closure | null $telRegex = null;
+
     protected string | Closure | null $type = null;
 
     public function currentPassword(bool | Closure $condition = true): static
@@ -129,7 +131,14 @@ class TextInput extends Field implements Contracts\CanBeLengthConstrained, CanHa
     {
         $this->isTel = $condition;
 
-        $this->regex(static fn (TextInput $component) => $component->evaluate($condition) ? '/^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\.\/0-9]*$/' : null);
+        $this->regex(static fn (TextInput $component) => $component->evaluate($condition) ? $component->getTelRegex() : null);
+
+        return $this;
+    }
+
+    public function telRegex(string | Closure | null $regex): static
+    {
+        $this->telRegex = $regex;
 
         return $this;
     }
@@ -206,6 +215,11 @@ class TextInput extends Field implements Contracts\CanBeLengthConstrained, CanHa
         return 'text';
     }
 
+    public function getTelRegex(): string
+    {
+        return $this->evaluate($this->telRegex) ?? '/^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\.\/0-9]*$/';
+    }
+
     public function hasMask(): bool
     {
         return $this->configureMaskUsing !== null;
diff --git a/packages/forms/src/Concerns/InteractsWithForms.php b/packages/forms/src/Concerns/InteractsWithForms.php
index 93ca726ac8..1277e35f5f 100644
--- a/packages/forms/src/Concerns/InteractsWithForms.php
+++ b/packages/forms/src/Concerns/InteractsWithForms.php
@@ -7,6 +7,7 @@ use Filament\Forms\ComponentContainer;
 use Illuminate\Contracts\View\View;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Validation\ValidationException;
+use Livewire\Exceptions\PropertyNotFoundException;
 use Livewire\TemporaryUploadedFile;
 use Livewire\WithFileUploads;
 
@@ -27,15 +28,19 @@ trait InteractsWithForms
 
     public function __get($property)
     {
-        if ((! $this->isCachingForms) && $form = $this->getCachedForm($property)) {
-            return $form;
-        }
+        try {
+            return parent::__get($property);
+        } catch (PropertyNotFoundException $exception) {
+            if ((! $this->isCachingForms) && $form = $this->getCachedForm($property)) {
+                return $form;
+            }
 
-        if ($property === 'modal') {
-            return $this->getModalViewOnce();
-        }
+            if ($property === 'modal') {
+                return $this->getModalViewOnce();
+            }
 
-        return parent::__get($property);
+            throw $exception;
+        }
     }
 
     protected function getModalViewOnce(): ?View
diff --git a/tests/src/Forms/ComputedPropertyTest.php b/tests/src/Forms/ComputedPropertyTest.php
new file mode 100644
index 0000000000..c40f67252f
--- /dev/null
+++ b/tests/src/Forms/ComputedPropertyTest.php
@@ -0,0 +1,37 @@
+<?php
+
+use Filament\Forms\Components\TextInput;
+use Filament\Tests\Forms\Fixtures\Livewire;
+use Filament\Tests\TestCase;
+use Pest\Expectation;
+
+uses(TestCase::class);
+
+test('computed properties used to generate form schema can be accessed before caching forms', function () {
+    expect(ComputedPropertySchema::make())
+        ->getSchema()
+        ->toBeArray()
+        ->sequence(
+            fn (Expectation $expect) => $expect->toBeInstanceOf(TextInput::class)
+        );
+});
+
+class ComputedPropertySchema extends Livewire
+{
+    public function getFormSchema(): array
+    {
+        return $this->schema;
+    }
+
+    public function getSchemaProperty()
+    {
+        return [
+            TextInput::make(''),
+        ];
+    }
+
+    public function getSchema()
+    {
+        return $this->schema;
+    }
+}