diff --git a/.env b/.env
index 76c46ee..74f1b00 100644
--- a/.env
+++ b/.env
@@ -75,3 +75,5 @@ FEATURE_SANITIZE_UPLOADS=false
 FEATURE_STAMP_INVOICES=false
 
 UPLOAD_REPLACEMENT_FILE=assets/pdf/chicken.pdf
+
+PERSONAL_DATA_CHECK_DEADLINES=04-01,10-01
diff --git a/config/services.yaml b/config/services.yaml
index b7ee4eb..ba4dc97 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -160,12 +160,15 @@ services:
             $datevEmailRecipient: '%env(DATEV_EMAIL_RECIPIENT)%'
             $datevEmailSender: '%env(DATEV_EMAIL_SENDER)%'
 
-    App\Security\RequiredCheck\RequiredTeamerCheckRegistry:
+    App\RequiredTeamerCheck\RequiredTeamerCheckRegistry:
         arguments:
-            $checks: !tagged_iterator app.required_teamer_check
+            $checks:
+                - '@App\RequiredTeamerCheck\DriverLicenseRequiredCheck'
+                - '@App\RequiredTeamerCheck\PersonalDataVerificationRequiredCheck'
 
-    App\Security\RequiredCheck\DriverLicenseRequiredCheck:
-        tags: [ 'app.required_teamer_check' ]
+    App\RequiredTeamerCheck\PersonalDataVerificationRequiredCheck:
+        arguments:
+            $dataVerificationDeadlines: '%env(csv:PERSONAL_DATA_CHECK_DEADLINES)%'
 
     app.upload_namer:
         class: App\Service\Upload\UploadNamer
diff --git a/migrations/Version20260218173855.php b/migrations/Version20260218173855.php
new file mode 100644
index 0000000..a372182
--- /dev/null
+++ b/migrations/Version20260218173855.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260218173855 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql("ALTER TABLE teamer ADD data_verified_at DATETIME DEFAULT NULL COMMENT '(DC2Type:datetime_immutable)'");
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE teamer DROP data_verified_at');
+    }
+}
diff --git a/src/BusProNet/ApiClient.php b/src/BusProNet/ApiClient.php
index c13cbfc..16bcf00 100644
--- a/src/BusProNet/ApiClient.php
+++ b/src/BusProNet/ApiClient.php
@@ -6,6 +6,7 @@ use App\BusProNet\Model\BaseDataResponse;
 use App\BusProNet\Model\CrmAttributesResponse;
 use App\BusProNet\Model\NotificationResponse;
 use App\BusProNet\Model\ProfileResponse;
+use App\BusProNet\Model\ProfileUpdateResponse;
 use App\Entity\User;
 use League\Flysystem\FilesystemException;
 use League\Flysystem\FilesystemOperator;
@@ -60,7 +61,7 @@ class ApiClient
      * @throws ApiClientException
      * @throws ResponseParserException
      */
-    public function updateProfile(User $user, string $password): NotificationResponse|ProfileResponse
+    public function updateProfile(User $user, string $password): NotificationResponse|ProfileUpdateResponse
     {
         if (null === $teamer = $user->getTeamer()) {
             throw new ApiClientException('Invalid argument');
diff --git a/src/BusProNet/Model/ProfileUpdateResponse.php b/src/BusProNet/Model/ProfileUpdateResponse.php
new file mode 100644
index 0000000..7d76df8
--- /dev/null
+++ b/src/BusProNet/Model/ProfileUpdateResponse.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace App\BusProNet\Model;
+
+class ProfileUpdateResponse
+{
+    private ?int $addressId = null;
+    private ?int $personId = null;
+    private bool $updated = false;
+
+    public function getAddressId(): ?int
+    {
+        return $this->addressId;
+    }
+
+    public function setAddressId(?int $addressId): static
+    {
+        $this->addressId = $addressId;
+
+        return $this;
+    }
+
+    public function getPersonId(): ?int
+    {
+        return $this->personId;
+    }
+
+    public function setPersonId(?int $personId): static
+    {
+        $this->personId = $personId;
+
+        return $this;
+    }
+
+    public function isUpdated(): bool
+    {
+        return $this->updated;
+    }
+
+    public function setUpdated(bool $updated): static
+    {
+        $this->updated = $updated;
+
+        return $this;
+    }
+}
diff --git a/src/BusProNet/ResponseParser.php b/src/BusProNet/ResponseParser.php
index 45da370..9a3c9b2 100644
--- a/src/BusProNet/ResponseParser.php
+++ b/src/BusProNet/ResponseParser.php
@@ -13,6 +13,7 @@ use App\BusProNet\Model\Hotel;
 use App\BusProNet\Model\NotificationResponse;
 use App\BusProNet\Model\Pickup;
 use App\BusProNet\Model\ProfileResponse;
+use App\BusProNet\Model\ProfileUpdateResponse;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 class ResponseParser
@@ -45,8 +46,9 @@ class ResponseParser
                 $subType = (string) $xml->art;
                 switch ($subType) {
                     case 'Adressdaten':
-                    case 'Adressdaten_Ändern':
                         return $this->createProfileResponse($xml);
+                    case 'Adressdaten_Ändern':
+                        return $this->createProfileUpdateResponse($xml);
                     case 'SelektionCRM':
                     case 'SelektionCRM_Ändern':
                         return $this->createCrmAttributesResponse($xml);
@@ -138,6 +140,27 @@ class ResponseParser
         return $response;
     }
 
+    public function createProfileUpdateResponse(\SimpleXMLElement $xml): ProfileUpdateResponse
+    {
+        $addressId = (int) $xml->idadresse;
+        $personId = (int) $xml->idperson;
+
+        $updated = false;
+        $updatedXml = $xml->xpath('änderung|aenderung');
+        if (0 < count($updatedXml)) {
+            $updated = 'true' === strtolower((string) $updatedXml[0]);
+        }
+
+        $response = new ProfileUpdateResponse();
+        $response
+            ->setAddressId($addressId)
+            ->setPersonId($personId)
+            ->setUpdated($updated)
+        ;
+
+        return $response;
+    }
+
     public function createCrmAttributesResponse(\SimpleXMLElement $xml): CrmAttributesResponse
     {
         $groups = [];
diff --git a/src/Controller/Teamer/Profile/IndexController.php b/src/Controller/Teamer/Profile/IndexController.php
index 8f08e88..5cdccdf 100644
--- a/src/Controller/Teamer/Profile/IndexController.php
+++ b/src/Controller/Teamer/Profile/IndexController.php
@@ -9,6 +9,7 @@ use App\Entity\Upload;
 use App\Entity\User;
 use App\Form\TeamerProfileType;
 use App\Model\UploadSessionDto;
+use App\RequiredTeamerCheck\PersonalDataVerificationRequiredCheck;
 use App\Service\Upload\UploadHandler;
 use Doctrine\ORM\EntityManagerInterface;
 use Psr\Log\LoggerInterface;
@@ -27,6 +28,7 @@ class IndexController extends AbstractController
         private readonly ApiClient $apiClient,
         private readonly UploadHandler $uploadHandler,
         private readonly LoggerInterface $logger,
+        private readonly PersonalDataVerificationRequiredCheck $personalDataVerificationRequiredCheck,
     ) {
     }
 
@@ -53,8 +55,11 @@ class IndexController extends AbstractController
         // Validate teamer data to show missing data right away
         $errors = $this->validator->validate($teamer, null, ['profile_preflight']);
 
+        $verificationMode = false === $this->personalDataVerificationRequiredCheck->isSatisfied($user);
+
         $form = $this->createForm(TeamerProfileType::class, $teamer, [
             'upload_session' => $uploadSession,
+            'verification_mode' => $verificationMode,
         ]);
         $form->handleRequest($request);
 
@@ -66,6 +71,10 @@ class IndexController extends AbstractController
             } catch (ApiClientException $e) {
             }
 
+            if (true === $verificationMode) {
+                $teamer->setDataVerifiedAt(new \DateTimeImmutable());
+            }
+
             $this->entityManager->flush();
 
             $this->addFlash('success', 'Deine Daten wurden aktualisiert');
@@ -81,6 +90,7 @@ class IndexController extends AbstractController
             'form' => $form->createView(),
             'teamer' => $teamer,
             'errors' => $errors,
+            'verification_mode' => $verificationMode,
         ]);
     }
 
diff --git a/src/Entity/Teamer.php b/src/Entity/Teamer.php
index e2a68ce..b3543c6 100644
--- a/src/Entity/Teamer.php
+++ b/src/Entity/Teamer.php
@@ -145,6 +145,9 @@ class Teamer implements TimestampableEntityInterface
     #[ORM\Column]
     private bool $allowOverlappingApplications = false;
 
+    #[ORM\Column(type: Types::DATETIME_IMMUTABLE, nullable: true)]
+    private ?\DateTimeImmutable $dataVerifiedAt = null;
+
     #[ORM\Column(nullable: true)]
     private ?bool $driverLicenseDeclaration = null;
 
@@ -922,4 +925,16 @@ class Teamer implements TimestampableEntityInterface
 
         return $this;
     }
+
+    public function getDataVerifiedAt(): ?\DateTimeImmutable
+    {
+        return $this->dataVerifiedAt;
+    }
+
+    public function setDataVerifiedAt(?\DateTimeImmutable $dataVerifiedAt): static
+    {
+        $this->dataVerifiedAt = $dataVerifiedAt;
+
+        return $this;
+    }
 }
diff --git a/src/EventListener/RequiredTeamerCheckSubscriber.php b/src/EventListener/RequiredTeamerCheckSubscriber.php
index 9d594d4..fbd112f 100644
--- a/src/EventListener/RequiredTeamerCheckSubscriber.php
+++ b/src/EventListener/RequiredTeamerCheckSubscriber.php
@@ -3,7 +3,7 @@
 namespace App\EventListener;
 
 use App\Entity\User;
-use App\Security\RequiredCheck\RequiredTeamerCheckRegistry;
+use App\RequiredTeamerCheck\RequiredTeamerCheckRegistry;
 use Symfony\Bundle\SecurityBundle\Security;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\RedirectResponse;
diff --git a/src/Form/TeamerProfileType.php b/src/Form/TeamerProfileType.php
index 6341062..edb8ab4 100644
--- a/src/Form/TeamerProfileType.php
+++ b/src/Form/TeamerProfileType.php
@@ -7,6 +7,7 @@ use App\Model\UploadSessionDto;
 use App\Service\Upload\UploadHandler;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\BirthdayType;
+use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 use Symfony\Component\Form\Extension\Core\Type\CollectionType;
 use Symfony\Component\Form\Extension\Core\Type\TextType;
@@ -14,6 +15,7 @@ use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Form\FormView;
 use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\Validator\Constraints\IsTrue;
 
 class TeamerProfileType extends AbstractType
 {
@@ -94,6 +96,19 @@ class TeamerProfileType extends AbstractType
                 ],
             ])
         ;
+
+        if (true === $options['verification_mode']) {
+            $builder->add('confirmDataVerification', CheckboxType::class, [
+                'label' => 'Ich bestätige, dass meine Daten korrekt und aktuell sind',
+                'mapped' => false,
+                'constraints' => [
+                    new IsTrue([
+                        'message' => 'Deine Bestätigung ist erforderlich',
+                        'groups' => ['profile'],
+                    ]),
+                ],
+            ]);
+        }
     }
 
     public function buildView(FormView $view, FormInterface $form, array $options): void
@@ -114,9 +129,11 @@ class TeamerProfileType extends AbstractType
                     'profile',
                 ],
                 'anti_xss' => true,
+                'verification_mode' => false,
             ])
             ->setRequired(['upload_session'])
             ->setAllowedTypes('upload_session', UploadSessionDto::class)
+            ->setAllowedTypes('verification_mode', 'bool')
         ;
     }
 }
diff --git a/src/Security/RequiredCheck/DriverLicenseRequiredCheck.php b/src/RequiredTeamerCheck/DriverLicenseRequiredCheck.php
similarity index 94%
rename from src/Security/RequiredCheck/DriverLicenseRequiredCheck.php
rename to src/RequiredTeamerCheck/DriverLicenseRequiredCheck.php
index 4d56b0d..6378529 100644
--- a/src/Security/RequiredCheck/DriverLicenseRequiredCheck.php
+++ b/src/RequiredTeamerCheck/DriverLicenseRequiredCheck.php
@@ -1,10 +1,11 @@
 <?php
 
-namespace App\Security\RequiredCheck;
+namespace App\RequiredTeamerCheck;
 
 use App\Entity\Teamer;
 use App\Entity\Upload;
 use App\Entity\User;
+use App\RequiredTeamerCheck\RequiredTeamerCheckInterface;
 
 class DriverLicenseRequiredCheck implements RequiredTeamerCheckInterface
 {
diff --git a/src/RequiredTeamerCheck/PersonalDataVerificationRequiredCheck.php b/src/RequiredTeamerCheck/PersonalDataVerificationRequiredCheck.php
new file mode 100644
index 0000000..0809ede
--- /dev/null
+++ b/src/RequiredTeamerCheck/PersonalDataVerificationRequiredCheck.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace App\RequiredTeamerCheck;
+
+use App\Entity\User;
+use Carbon\CarbonImmutable;
+
+class PersonalDataVerificationRequiredCheck implements RequiredTeamerCheckInterface
+{
+    public function __construct(
+        private readonly array $dataVerificationDeadlines = ['04-01', '10-01'],
+    ) {
+    }
+
+    public function getCode(): string
+    {
+        return 'personal_data_verification';
+    }
+
+    public function appliesTo(User $user): bool
+    {
+        return true === $user->hasRole('ROLE_TEAMER');
+    }
+
+    public function isSatisfied(User $user): bool
+    {
+        $teamer = $user->getTeamer();
+
+        if (null === $teamer) {
+            return false;
+        }
+
+        return false === $this->isVerificationRequired($teamer->getDataVerifiedAt());
+    }
+
+    public function getRouteName(): string
+    {
+        return 'app_teamer_profile_index';
+    }
+
+    private function isVerificationRequired(?\DateTimeImmutable $dataVerifiedAt): bool
+    {
+        $deadline = $this->getCurrentDeadline(CarbonImmutable::now()->startOfDay());
+
+        if (null === $deadline) {
+            return false;
+        }
+
+        if (null === $dataVerifiedAt) {
+            return true;
+        }
+
+        return CarbonImmutable::instance($dataVerifiedAt) < $deadline;
+    }
+
+    private function getCurrentDeadline(CarbonImmutable $now): ?CarbonImmutable
+    {
+        $deadlines = array_filter(array_map('trim', $this->dataVerificationDeadlines));
+        rsort($deadlines);
+
+        foreach ($deadlines as $date) {
+            $deadline = CarbonImmutable::createFromFormat('Y-m-d', sprintf('%s-%s', $now->format('Y'), $date));
+
+            if (false === $deadline instanceof CarbonImmutable) {
+                continue;
+            }
+
+            $deadline = $deadline->startOfDay();
+
+            if ($deadline <= $now) {
+                return $deadline;
+            }
+        }
+
+        return null;
+    }
+}
diff --git a/src/Security/RequiredCheck/RequiredTeamerCheckInterface.php b/src/RequiredTeamerCheck/RequiredTeamerCheckInterface.php
similarity index 87%
rename from src/Security/RequiredCheck/RequiredTeamerCheckInterface.php
rename to src/RequiredTeamerCheck/RequiredTeamerCheckInterface.php
index a545fe4..7a1895f 100644
--- a/src/Security/RequiredCheck/RequiredTeamerCheckInterface.php
+++ b/src/RequiredTeamerCheck/RequiredTeamerCheckInterface.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App\Security\RequiredCheck;
+namespace App\RequiredTeamerCheck;
 
 use App\Entity\User;
 
diff --git a/src/Security/RequiredCheck/RequiredTeamerCheckRegistry.php b/src/RequiredTeamerCheck/RequiredTeamerCheckRegistry.php
similarity index 86%
rename from src/Security/RequiredCheck/RequiredTeamerCheckRegistry.php
rename to src/RequiredTeamerCheck/RequiredTeamerCheckRegistry.php
index 4949c98..cfb17a1 100644
--- a/src/Security/RequiredCheck/RequiredTeamerCheckRegistry.php
+++ b/src/RequiredTeamerCheck/RequiredTeamerCheckRegistry.php
@@ -1,8 +1,9 @@
 <?php
 
-namespace App\Security\RequiredCheck;
+namespace App\RequiredTeamerCheck;
 
 use App\Entity\User;
+use App\RequiredTeamerCheck\RequiredTeamerCheckInterface;
 
 class RequiredTeamerCheckRegistry
 {
diff --git a/src/Security/BpnAuthenticator.php b/src/Security/BpnAuthenticator.php
index ef36e0b..f01be9a 100644
--- a/src/Security/BpnAuthenticator.php
+++ b/src/Security/BpnAuthenticator.php
@@ -8,7 +8,7 @@ use App\BusProNet\Model\CrmAttributesResponse;
 use App\BusProNet\Model\ProfileResponse;
 use App\BusProNet\UserDataHandler;
 use App\Entity\User;
-use App\Security\RequiredCheck\RequiredTeamerCheckRegistry;
+use App\RequiredTeamerCheck\RequiredTeamerCheckRegistry;
 use Doctrine\ORM\EntityManagerInterface;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\HttpFoundation\RedirectResponse;
diff --git a/templates/teamer/profile/index.html.twig b/templates/teamer/profile/index.html.twig
index f3271dd..de73e63 100644
--- a/templates/teamer/profile/index.html.twig
+++ b/templates/teamer/profile/index.html.twig
@@ -53,6 +53,11 @@
                 <h1 class="text-2xl font-bold pb-8">
                     Mein Profil
                 </h1>
+                {% if verification_mode %}
+                    <div class="border border-blue-500 rounded-md p-4 text-blue-700 bg-blue-50 mb-8">
+                        Bitte überprüfe deine Daten und bestätige sie am Ende des Formulars.
+                    </div>
+                {% endif %}
                 {% if not form.vars.valid %}
                     <div class="border border-red-500 rounded-md p-4 text-red-500 mb-8">
                         {% include '_partials/_form_errors.html.twig' with { 'form': form } %}
@@ -189,8 +194,14 @@
                     } %}
                 </div>
 
+                {% if verification_mode %}
+                    <div class="pb-4">
+                        {{ form_row(form.confirmDataVerification) }}
+                    </div>
+                {% endif %}
+
                 <button type="submit" class="btn" {{ stimulus_target('form-upload-guard', 'submit') }}>
-                    Aktualisieren
+                    {{ verification_mode ? 'Daten bestätigen' : 'Aktualisieren' }}
                 </button>
 
             </div>
diff --git a/tests/BusProNet/ResponseParserTest.php b/tests/BusProNet/ResponseParserTest.php
index fdc1e9b..2fa3922 100644
--- a/tests/BusProNet/ResponseParserTest.php
+++ b/tests/BusProNet/ResponseParserTest.php
@@ -8,6 +8,7 @@ use App\BusProNet\Model\CrmAttributesResponse;
 use App\BusProNet\Model\Hotel;
 use App\BusProNet\Model\Pickup;
 use App\BusProNet\Model\ProfileResponse;
+use App\BusProNet\Model\ProfileUpdateResponse;
 use App\BusProNet\ResponseParser;
 use PHPUnit\Framework\TestCase;
 
@@ -47,6 +48,19 @@ class ResponseParserTest extends TestCase
         $this->assertTrue($response->isTeamer());
     }
 
+    public function testParseSuccessfulProfileUpdateResponseWithoutAddressData(): void
+    {
+        $content = '<?xml version="1.0" encoding="utf-8"?><ergebnis><satz typ="KUNDENKONTO"></satz><art>Adressdaten_Ändern</art><idadresse>141747</idadresse><idperson>224526</idperson><änderung>True</änderung></ergebnis>';
+
+        $parser = $this->getParserInstance();
+        $response = $parser->parseXmlString(ApiClient::TYPE_CUSTOMER_DATA, $content);
+
+        $this->assertInstanceOf(ProfileUpdateResponse::class, $response);
+        $this->assertSame(141747, $response->getAddressId());
+        $this->assertSame(224526, $response->getPersonId());
+        $this->assertTrue($response->isUpdated());
+    }
+
     public function testParseSuccessfulPickupsResponse(): void
     {
         $content = '<?xml version="1.0" encoding="utf-8" ?><zustiege><zustieg id="1" idbuspro="1" code="298"><ort>Karlsruhe</ort><strasse>A5 - Autohof Bruchsal</strasse><art>BUS</art><hausabholung>False</hausabholung><crsbuchbar>True</crsbuchbar><internetbuchbar>True</internetbuchbar></zustieg><zustieg id="2" idbuspro="2" code="2"><ort>Bonn</ort><strasse>Bahnhof</strasse><art>BUS</art><hausabholung>False</hausabholung><crsbuchbar>True</crsbuchbar><internetbuchbar>True</internetbuchbar></zustieg></zustiege>';
@@ -100,4 +114,4 @@ class ResponseParserTest extends TestCase
             'bpn_crm_id_teamer' => 1070,
         ]);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/Security/RequiredCheck/DriverLicenseRequiredCheckTest.php b/tests/Security/RequiredCheck/DriverLicenseRequiredCheckTest.php
index 74ed1d3..d4d5dc8 100644
--- a/tests/Security/RequiredCheck/DriverLicenseRequiredCheckTest.php
+++ b/tests/Security/RequiredCheck/DriverLicenseRequiredCheckTest.php
@@ -7,7 +7,7 @@ namespace App\Tests\Security\RequiredCheck;
 use App\Entity\Teamer;
 use App\Entity\Upload;
 use App\Entity\User;
-use App\Security\RequiredCheck\DriverLicenseRequiredCheck;
+use App\RequiredTeamerCheck\DriverLicenseRequiredCheck;
 use PHPUnit\Framework\TestCase;
 
 class DriverLicenseRequiredCheckTest extends TestCase
diff --git a/tests/Security/RequiredCheck/PersonalDataVerificationRequiredCheckTest.php b/tests/Security/RequiredCheck/PersonalDataVerificationRequiredCheckTest.php
new file mode 100644
index 0000000..e782647
--- /dev/null
+++ b/tests/Security/RequiredCheck/PersonalDataVerificationRequiredCheckTest.php
@@ -0,0 +1,96 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Security\RequiredCheck;
+
+use App\Entity\Teamer;
+use App\Entity\User;
+use App\RequiredTeamerCheck\PersonalDataVerificationRequiredCheck;
+use Carbon\CarbonImmutable;
+use PHPUnit\Framework\TestCase;
+
+class PersonalDataVerificationRequiredCheckTest extends TestCase
+{
+    protected function setUp(): void
+    {
+        CarbonImmutable::setTestNow();
+    }
+
+    protected function tearDown(): void
+    {
+        CarbonImmutable::setTestNow();
+    }
+
+    public function testAppliesToTeamerUsers(): void
+    {
+        $check = new PersonalDataVerificationRequiredCheck();
+        $user = (new User())->setRoles(['ROLE_TEAMER']);
+
+        $this->assertTrue($check->appliesTo($user));
+    }
+
+    public function testIsNotSatisfiedWhenTeamerIsMissing(): void
+    {
+        $check = new PersonalDataVerificationRequiredCheck();
+        $user = (new User())->setRoles(['ROLE_TEAMER']);
+
+        $this->assertFalse($check->isSatisfied($user));
+    }
+
+    public function testIsSatisfiedBeforeFirstDeadlineEvenWithoutVerification(): void
+    {
+        CarbonImmutable::setTestNow('2026-01-10 12:00:00');
+        $check = new PersonalDataVerificationRequiredCheck(['01-15', '07-15']);
+
+        $teamer = new Teamer();
+        $user = (new User())
+            ->setRoles(['ROLE_TEAMER'])
+            ->setTeamer($teamer)
+        ;
+
+        $this->assertTrue($check->isSatisfied($user));
+    }
+
+    public function testIsNotSatisfiedAfterFirstDeadlineWhenNeverVerified(): void
+    {
+        CarbonImmutable::setTestNow('2026-01-20 12:00:00');
+        $check = new PersonalDataVerificationRequiredCheck(['01-15', '07-15']);
+
+        $teamer = new Teamer();
+        $user = (new User())
+            ->setRoles(['ROLE_TEAMER'])
+            ->setTeamer($teamer)
+        ;
+
+        $this->assertFalse($check->isSatisfied($user));
+    }
+
+    public function testIsSatisfiedWhenVerifiedAfterCurrentDeadline(): void
+    {
+        CarbonImmutable::setTestNow('2026-05-20 12:00:00');
+        $check = new PersonalDataVerificationRequiredCheck(['01-15', '07-15']);
+
+        $teamer = (new Teamer())->setDataVerifiedAt(new \DateTimeImmutable('2026-01-16 10:00:00'));
+        $user = (new User())
+            ->setRoles(['ROLE_TEAMER'])
+            ->setTeamer($teamer)
+        ;
+
+        $this->assertTrue($check->isSatisfied($user));
+    }
+
+    public function testIsNotSatisfiedWhenVerificationIsOutdated(): void
+    {
+        CarbonImmutable::setTestNow('2026-07-20 12:00:00');
+        $check = new PersonalDataVerificationRequiredCheck(['01-15', '07-15']);
+
+        $teamer = (new Teamer())->setDataVerifiedAt(new \DateTimeImmutable('2026-02-01 10:00:00'));
+        $user = (new User())
+            ->setRoles(['ROLE_TEAMER'])
+            ->setTeamer($teamer)
+        ;
+
+        $this->assertFalse($check->isSatisfied($user));
+    }
+}