diff --git a/apps/portal/src/pages/register/[eventSlug].vue b/apps/portal/src/pages/register/[eventSlug].vue
index 8d47ef8b..20612b28 100644
--- a/apps/portal/src/pages/register/[eventSlug].vue
+++ b/apps/portal/src/pages/register/[eventSlug].vue
@@ -1,7 +1,9 @@
 <script setup lang="ts">
+import { watchDebounced } from '@vueuse/core'
 import { useForm } from 'vee-validate'
 import { toTypedSchema } from '@vee-validate/zod'
 import { useDisplay } from 'vuetify'
+import { apiClient } from '@/lib/axios'
 import { useAuthStore } from '@/stores/useAuthStore'
 import { useRegistrationData, useSubmitRegistration } from '@/composables/api/useVolunteerRegistration'
 import { fullRegistrationSchema } from '@/schemas/registrationSchema'
@@ -37,6 +39,21 @@ const submitError = ref<string | null>(null)
 const fieldFormData = ref<Record<string, unknown>>({})
 const fieldErrors = ref<Record<string, string>>({})
 
+const password = ref('')
+const passwordConfirmation = ref('')
+const emailExists = ref<boolean | null>(null)
+const emailChecking = ref(false)
+const lastCheckedEmail = ref('')
+let checkEmailRequestSeq = 0
+
+const showPassword = ref(false)
+const showPasswordConfirmation = ref(false)
+
+const passwordServerError = ref('')
+const passwordConfirmationServerError = ref('')
+const passwordClientError = ref('')
+const passwordConfirmationClientError = ref('')
+
 const { errors, defineField, validateField, setFieldValue, setFieldError } = useForm({
   validationSchema: toTypedSchema(fullRegistrationSchema),
   initialValues: {
@@ -63,6 +80,139 @@ watch(() => authStore.user, user => {
   }
 }, { immediate: true })
 
+function isEmailFormatForCheck(value: string): boolean {
+  return value.includes('@') && value.includes('.')
+}
+
+async function runCheckEmail(rawEmail: string): Promise<void> {
+  if (authStore.isAuthenticated) return
+
+  const trimmed = rawEmail.trim()
+  if (!isEmailFormatForCheck(trimmed)) {
+    emailExists.value = null
+    lastCheckedEmail.value = ''
+    emailChecking.value = false
+
+    return
+  }
+
+  const seq = ++checkEmailRequestSeq
+  emailChecking.value = true
+  try {
+    const { data } = await apiClient.post<{ exists: boolean }>('/public/check-email', { email: trimmed })
+    if (seq !== checkEmailRequestSeq) return
+    emailExists.value = data.exists
+    lastCheckedEmail.value = trimmed
+  }
+  catch {
+    if (seq !== checkEmailRequestSeq) return
+    emailExists.value = null
+  }
+  finally {
+    if (seq === checkEmailRequestSeq)
+      emailChecking.value = false
+  }
+}
+
+function onEmailBlur(): void {
+  if (authStore.isAuthenticated) return
+
+  const trimmed = (email.value ?? '').trim()
+  if (!isEmailFormatForCheck(trimmed)) return
+  if (emailChecking.value) return
+  if (trimmed === lastCheckedEmail.value && emailExists.value !== null) return
+
+  void runCheckEmail(trimmed)
+}
+
+watchDebounced(
+  email,
+  val => {
+    void runCheckEmail(val ?? '')
+  },
+  { debounce: 500 },
+)
+
+watch(email, val => {
+  if (authStore.isAuthenticated) return
+
+  const t = (val ?? '').trim()
+  if (t !== lastCheckedEmail.value) {
+    emailExists.value = null
+    password.value = ''
+    passwordConfirmation.value = ''
+    passwordServerError.value = ''
+    passwordConfirmationServerError.value = ''
+    passwordClientError.value = ''
+    passwordConfirmationClientError.value = ''
+  }
+})
+
+watch(() => authStore.isAuthenticated, authed => {
+  if (!authed) return
+
+  emailExists.value = null
+  emailChecking.value = false
+  lastCheckedEmail.value = ''
+  password.value = ''
+  passwordConfirmation.value = ''
+  passwordServerError.value = ''
+  passwordConfirmationServerError.value = ''
+  passwordClientError.value = ''
+  passwordConfirmationClientError.value = ''
+})
+
+watch(password, () => {
+  passwordServerError.value = ''
+  passwordClientError.value = ''
+})
+
+watch(passwordConfirmation, () => {
+  passwordConfirmationServerError.value = ''
+  passwordConfirmationClientError.value = ''
+})
+
+function validatePasswordsForStep(): boolean {
+  passwordClientError.value = ''
+  passwordConfirmationClientError.value = ''
+
+  if (authStore.isAuthenticated) return true
+  if (emailChecking.value) return false
+
+  const em = (email.value ?? '').trim()
+  if (!isEmailFormatForCheck(em)) return true
+
+  if (emailExists.value === null) return false
+
+  if (emailExists.value === true) {
+    if (!password.value) {
+      passwordClientError.value = 'Verplicht'
+
+      return false
+    }
+
+    return true
+  }
+
+  if (!password.value) {
+    passwordClientError.value = 'Verplicht'
+
+    return false
+  }
+  if (password.value.length < 8) {
+    passwordClientError.value = 'Minimaal 8 tekens'
+
+    return false
+  }
+  if (password.value !== passwordConfirmation.value) {
+    passwordConfirmationClientError.value = 'Wachtwoorden komen niet overeen'
+
+    return false
+  }
+
+  return true
+}
+
 const selectedSectionIds = ref<string[]>([])
 const selectedTimeSlotIds = ref<string[]>([])
 const timeSlotPreferences = ref<Record<string, number>>({})
@@ -287,8 +437,9 @@ async function validateCurrentStep(): Promise<boolean> {
   const k = currentStepKind.value
   if (k === 'personal') {
     const results = await Promise.all(personalFieldKeys.map(f => validateField(f)))
+    if (!results.every(r => r.valid)) return false
 
-    return results.every(r => r.valid)
+    return validatePasswordsForStep()
   }
   if (k === 'dynamic')
     return validateDynamicFields()
@@ -390,14 +541,30 @@ function applyServerValidationErrors(serverErrors: Record<string, string[]>) {
 
       continue
     }
+    if (key === 'password') {
+      passwordServerError.value = msgs[0] ?? 'Ongeldige waarde.'
+
+      continue
+    }
+    if (key === 'password_confirmation') {
+      passwordConfirmationServerError.value = msgs[0] ?? 'Ongeldige waarde.'
+
+      continue
+    }
     if (isPersonalFieldKey(key))
       setFieldError(key, msgs[0] ?? 'Ongeldige waarde.')
   }
 }
 
+function isRegistrationStepOneServerErrorKey(key: string): boolean {
+  return isPersonalFieldKey(key) || key === 'password' || key === 'password_confirmation'
+}
+
 async function onSubmit() {
   submitError.value = null
   fieldErrors.value = {}
+  passwordServerError.value = ''
+  passwordConfirmationServerError.value = ''
 
   const rPersonal = await Promise.all(personalFieldKeys.map(f => validateField(f)))
   if (!rPersonal.every(x => x.valid)) {
@@ -405,6 +572,11 @@ async function onSubmit() {
 
     return
   }
+  if (!validatePasswordsForStep()) {
+    currentStep.value = 0
+
+    return
+  }
   if (!validateDynamicFields()) {
     currentStep.value = 1
 
@@ -437,6 +609,12 @@ async function onSubmit() {
     availabilities,
   }
 
+  if (!authStore.isAuthenticated) {
+    payload.password = password.value
+    if (emailExists.value === false)
+      payload.password_confirmation = passwordConfirmation.value
+  }
+
   if (field_values) payload.field_values = field_values
   if (section_preferences?.length) payload.section_preferences = section_preferences
 
@@ -464,7 +642,7 @@ async function onSubmit() {
       if (serverErrors) {
         applyServerValidationErrors(serverErrors)
         const keys = Object.keys(serverErrors)
-        if (keys.some(k => isPersonalFieldKey(k))) {
+        if (keys.some(k => isRegistrationStepOneServerErrorKey(k))) {
           currentStep.value = 0
 
           return
@@ -894,7 +1072,32 @@ async function onSubmit() {
                       :disabled="authStore.isAuthenticated"
                       density="comfortable"
                       hide-details="auto"
-                    />
+                      @blur="onEmailBlur"
+                    >
+                      <template
+                        v-if="!authStore.isAuthenticated && emailChecking"
+                        #append-inner
+                      >
+                        <VProgressCircular
+                          indeterminate
+                          color="primary"
+                          size="20"
+                          width="2"
+                        />
+                      </template>
+                    </VTextField>
+                    <p
+                      v-if="!authStore.isAuthenticated && emailExists === true"
+                      class="text-body-2 text-success mt-2 mb-0"
+                    >
+                      ✓ We herkennen dit emailadres! Vul je wachtwoord in om verder te gaan.
+                    </p>
+                    <p
+                      v-else-if="!authStore.isAuthenticated && emailExists === false"
+                      class="text-caption text-medium-emphasis mt-2 mb-0"
+                    >
+                      Je maakt een nieuw account aan
+                    </p>
                   </VCol>
 
                   <VCol cols="12">
@@ -916,6 +1119,82 @@ async function onSubmit() {
                     />
                   </VCol>
                 </VRow>
+
+                <template v-if="!authStore.isAuthenticated && emailExists !== null">
+                  <VRow v-if="emailExists === false">
+                    <VCol cols="12">
+                      <label
+                        class="text-body-2 d-block mb-1 text-high-emphasis"
+                        for="volunteer-reg-password"
+                      >
+                        Wachtwoord <span class="text-error">*</span>
+                      </label>
+                      <VTextField
+                        id="volunteer-reg-password"
+                        v-model="password"
+                        variant="outlined"
+                        :type="showPassword ? 'text' : 'password'"
+                        density="comfortable"
+                        hide-details="auto"
+                        :append-inner-icon="showPassword ? 'mdi-eye-off' : 'mdi-eye'"
+                        :rules="[(v: string) => !!v || 'Verplicht', (v: string) => v.length >= 8 || 'Minimaal 8 tekens']"
+                        :error-messages="passwordServerError || passwordClientError ? [passwordServerError || passwordClientError] : undefined"
+                        @click:append-inner="showPassword = !showPassword"
+                      />
+                    </VCol>
+                    <VCol cols="12">
+                      <label
+                        class="text-body-2 d-block mb-1 text-high-emphasis"
+                        for="volunteer-reg-password-confirm"
+                      >
+                        Bevestig wachtwoord <span class="text-error">*</span>
+                      </label>
+                      <VTextField
+                        id="volunteer-reg-password-confirm"
+                        v-model="passwordConfirmation"
+                        variant="outlined"
+                        :type="showPasswordConfirmation ? 'text' : 'password'"
+                        density="comfortable"
+                        hide-details="auto"
+                        :append-inner-icon="showPasswordConfirmation ? 'mdi-eye-off' : 'mdi-eye'"
+                        :rules="[(v: string) => v === password || 'Wachtwoorden komen niet overeen']"
+                        :error-messages="passwordConfirmationServerError || passwordConfirmationClientError ? [passwordConfirmationServerError || passwordConfirmationClientError] : undefined"
+                        @click:append-inner="showPasswordConfirmation = !showPasswordConfirmation"
+                      />
+                    </VCol>
+                  </VRow>
+
+                  <VRow v-else-if="emailExists === true">
+                    <VCol cols="12">
+                      <label
+                        class="text-body-2 d-block mb-1 text-high-emphasis"
+                        for="volunteer-reg-password-existing"
+                      >
+                        Wachtwoord <span class="text-error">*</span>
+                      </label>
+                      <VTextField
+                        id="volunteer-reg-password-existing"
+                        v-model="password"
+                        variant="outlined"
+                        :type="showPassword ? 'text' : 'password'"
+                        density="comfortable"
+                        hide-details="auto"
+                        hint="Voer je bestaande wachtwoord in"
+                        persistent-hint
+                        :append-inner-icon="showPassword ? 'mdi-eye-off' : 'mdi-eye'"
+                        :rules="[(v: string) => !!v || 'Verplicht']"
+                        :error-messages="passwordServerError || passwordClientError ? [passwordServerError || passwordClientError] : undefined"
+                        @click:append-inner="showPassword = !showPassword"
+                      />
+                      <RouterLink
+                        to="/wachtwoord-vergeten"
+                        class="text-caption d-inline-block mt-1"
+                      >
+                        Wachtwoord vergeten?
+                      </RouterLink>
+                    </VCol>
+                  </VRow>
+                </template>
               </div>
 
               <!-- Step 1: Extra informatie (dynamic registration_fields) -->
diff --git a/apps/portal/src/types/registration.ts b/apps/portal/src/types/registration.ts
index 9f50b526..76212d3c 100644
--- a/apps/portal/src/types/registration.ts
+++ b/apps/portal/src/types/registration.ts
@@ -79,6 +79,8 @@ export interface VolunteerRegistrationForm {
   date_of_birth: string
   email: string
   phone: string
+  password?: string
+  password_confirmation?: string
   field_values?: Record<string, unknown>
   section_preferences?: SectionPreference[]
   availabilities: VolunteerAvailability[]