diff --git a/src/components/contacts/ContactFiltersPanel.tsx b/src/components/contacts/ContactFiltersPanel.tsx
new file mode 100644
index 00000000..c4bafc70
--- /dev/null
+++ b/src/components/contacts/ContactFiltersPanel.tsx
@@ -0,0 +1,169 @@
+import React from 'react';
+import { View, Text, TextInput, Pressable, ScrollView, StyleSheet } from 'react-native';
+import { Mail, Phone, Image as ImageIcon, X } from '../icons';
+import { spacing, radius, typography, type ThemePalette } from '../../theme/tokens';
+import { useColors } from '../../theme/colors';
+import { useLocaleStore } from '../../stores/locale-store';
+import {
+  countActiveFilters,
+  cycleTri,
+  EMPTY_CONTACT_FILTERS,
+  type ContactListFilters,
+  type TriState,
+} from '../../lib/contact-list-filters';
+
+interface Props {
+  filters: ContactListFilters;
+  onChange: (filters: ContactListFilters) => void;
+  onClose: () => void;
+}
+
+// The contact list's advanced filters (webmail contact-list.tsx): company,
+// job title, location, email domain, birthday month and has email / phone /
+// photo, each a three-way toggle (off, must have, must not have).
+export function ContactFiltersPanel({ filters, onChange, onClose }: Props) {
+  const c = useColors();
+  const styles = React.useMemo(() => makeStyles(c), [c]);
+  const t = useLocaleStore((s) => s.t);
+  const locale = useLocaleStore((s) => s.locale);
+  const monthNames = React.useMemo(() => {
+    const fmt = new Intl.DateTimeFormat(locale, { month: 'long' });
+    return Array.from({ length: 12 }, (_, i) => fmt.format(new Date(2000, i, 1)));
+  }, [locale]);
+  const set = <K extends keyof ContactListFilters>(key: K, value: ContactListFilters[K]) =>
+    onChange({ ...filters, [key]: value });
+
+  const field = (key: 'organization' | 'jobTitle' | 'location' | 'emailDomain', label: string, placeholder: string) => (
+    <View style={styles.field}>
+      <Text style={styles.label}>{label}</Text>
+      <TextInput
+        value={filters[key]}
+        onChangeText={(v) => set(key, v)}
+        placeholder={placeholder}
+        placeholderTextColor={c.textMuted}
+        accessibilityLabel={label}
+        autoCapitalize="none"
+        autoCorrect={false}
+        style={styles.input}
+      />
+    </View>
+  );
+
+  const toggle = (key: 'hasEmail' | 'hasPhone' | 'hasPhoto', label: string, icon: React.ReactNode) => {
+    const value: TriState = filters[key];
+    return (
+      <Pressable
+        onPress={() => set(key, cycleTri(value))}
+        style={[styles.chip, value === true && styles.chipOn, value === false && styles.chipNot]}
+        accessibilityRole="button"
+        accessibilityState={{ checked: value === null ? false : value === true ? true : 'mixed' }}
+      >
+        {icon}
+        <Text style={[styles.chipText, value === true && styles.chipTextOn, value === false && styles.chipTextNot]}>{label}</Text>
+      </Pressable>
+    );
+  };
+
+  return (
+    <View style={styles.panel}>
+      <View style={styles.header}>
+        <Text style={styles.title}>{t('contacts.filters.title', 'Advanced filters')}</Text>
+        {countActiveFilters(filters) > 0 && (
+          <Pressable onPress={() => onChange(EMPTY_CONTACT_FILTERS)} hitSlop={6} accessibilityRole="button">
+            <Text style={styles.clear}>{t('contacts.filters.clear', 'Clear')}</Text>
+          </Pressable>
+        )}
+        <Pressable onPress={onClose} hitSlop={8} accessibilityRole="button" accessibilityLabel={t('contacts.filters.close', 'Close')}>
+          <X size={16} color={c.textMuted} />
+        </Pressable>
+      </View>
+      <View style={styles.row}>
+        {field('organization', t('contacts.filters.organization', 'Company'), t('contacts.filters.organization_placeholder', 'e.g. Acme Corp'))}
+        {field('jobTitle', t('contacts.filters.job_title', 'Job title'), t('contacts.filters.job_title_placeholder', 'e.g. Designer'))}
+      </View>
+      <View style={styles.row}>
+        {field('location', t('contacts.filters.location', 'Location'), t('contacts.filters.location_placeholder', 'City or country'))}
+        {field('emailDomain', t('contacts.filters.email_domain', 'Email domain'), t('contacts.filters.email_domain_placeholder', 'example.com'))}
+      </View>
+      <Text style={styles.label}>{t('contacts.filters.birthday_month', 'Birthday in')}</Text>
+      <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.months}>
+        <Pressable
+          onPress={() => set('birthdayMonth', null)}
+          style={[styles.chip, filters.birthdayMonth === null && styles.chipOn]}
+          accessibilityRole="radio"
+          accessibilityState={{ selected: filters.birthdayMonth === null }}
+        >
+          <Text style={[styles.chipText, filters.birthdayMonth === null && styles.chipTextOn]}>{t('contacts.filters.any_month', 'Any month')}</Text>
+        </Pressable>
+        {monthNames.map((name, i) => {
+          const active = filters.birthdayMonth === i + 1;
+          return (
+            <Pressable
+              key={name}
+              onPress={() => set('birthdayMonth', i + 1)}
+              style={[styles.chip, active && styles.chipOn]}
+              accessibilityRole="radio"
+              accessibilityState={{ selected: active }}
+            >
+              <Text style={[styles.chipText, active && styles.chipTextOn]}>{name}</Text>
+            </Pressable>
+          );
+        })}
+      </ScrollView>
+      <View style={styles.toggles}>
+        {toggle('hasEmail', t('contacts.filters.has_email', 'Has email'), <Mail size={14} color={c.textMuted} />)}
+        {toggle('hasPhone', t('contacts.filters.has_phone', 'Has phone'), <Phone size={14} color={c.textMuted} />)}
+        {toggle('hasPhoto', t('contacts.filters.has_photo', 'Has photo'), <ImageIcon size={14} color={c.textMuted} />)}
+      </View>
+    </View>
+  );
+}
+
+function makeStyles(c: ThemePalette) {
+  return StyleSheet.create({
+    panel: {
+      marginHorizontal: spacing.lg,
+      marginBottom: spacing.sm,
+      padding: spacing.md,
+      gap: spacing.sm,
+      borderRadius: radius.md,
+      borderWidth: 1,
+      borderColor: c.border,
+      backgroundColor: c.surface,
+    },
+    header: { flexDirection: 'row', alignItems: 'center', gap: spacing.md },
+    title: { ...typography.bodyMedium, color: c.text, flex: 1 },
+    clear: { ...typography.captionMedium, color: c.primary },
+    row: { flexDirection: 'row', gap: spacing.sm },
+    field: { flex: 1, gap: 2 },
+    label: { ...typography.caption, color: c.textMuted },
+    input: {
+      ...typography.body,
+      color: c.text,
+      borderWidth: 1,
+      borderColor: c.border,
+      borderRadius: radius.sm,
+      paddingHorizontal: spacing.sm,
+      paddingVertical: 6,
+      backgroundColor: c.background,
+    },
+    months: { gap: spacing.xs },
+    toggles: { flexDirection: 'row', flexWrap: 'wrap', gap: spacing.xs },
+    chip: {
+      flexDirection: 'row',
+      alignItems: 'center',
+      gap: 4,
+      paddingHorizontal: spacing.sm,
+      paddingVertical: 4,
+      borderRadius: radius.full,
+      borderWidth: 1,
+      borderColor: c.border,
+      backgroundColor: c.background,
+    },
+    chipOn: { backgroundColor: c.primaryBg, borderColor: c.primary },
+    chipNot: { backgroundColor: c.surface },
+    chipText: { ...typography.caption, color: c.textMuted },
+    chipTextOn: { color: c.primary },
+    chipTextNot: { textDecorationLine: 'line-through' },
+  });
+}
diff --git a/src/lib/__tests__/contact-list-filters.test.ts b/src/lib/__tests__/contact-list-filters.test.ts
new file mode 100644
index 00000000..1c426ef4
--- /dev/null
+++ b/src/lib/__tests__/contact-list-filters.test.ts
@@ -0,0 +1,43 @@
+import { describe, expect, it } from 'vitest';
+import type { ContactCard } from '../../api/types';
+import { countActiveFilters, cycleTri, EMPTY_CONTACT_FILTERS, matchesContactFilters } from '../contact-list-filters';
+
+const ana = {
+  id: 'a', name: { full: 'Ana' },
+  emails: { e: { address: 'ana@acme.example' } },
+  organizations: { o: { name: 'Acme Corp', units: [{ name: 'Design' }] } },
+  titles: { t: { name: 'Designer' } },
+  addresses: { h: { components: [{ kind: 'locality', value: 'Berlin' }] } },
+  anniversaries: { b: { kind: 'birth', date: '1990-03-14' } },
+} as unknown as ContactCard;
+const ben = { id: 'b', name: { full: 'Ben' }, phones: { p: { number: '+49 1' } } } as unknown as ContactCard;
+
+const only = (f: Partial<typeof EMPTY_CONTACT_FILTERS>) => [ana, ben]
+  .filter((c) => matchesContactFilters(c, { ...EMPTY_CONTACT_FILTERS, ...f }))
+  .map((c) => c.id);
+
+describe('contact list filters', () => {
+  it('keeps every contact without filters', () => {
+    expect(only({})).toEqual(['a', 'b']);
+  });
+
+  it('filters by company or unit, job title, location, email domain and birthday month', () => {
+    expect(only({ organization: 'design' })).toEqual(['a']);
+    expect(only({ jobTitle: 'design' })).toEqual(['a']);
+    expect(only({ location: 'berl' })).toEqual(['a']);
+    expect(only({ emailDomain: '@acme' })).toEqual(['a']);
+    expect(only({ birthdayMonth: 3 })).toEqual(['a']);
+    expect(only({ birthdayMonth: 4 })).toEqual([]);
+  });
+
+  it('filters by having, or not having, an email or a phone', () => {
+    expect(only({ hasEmail: true })).toEqual(['a']);
+    expect(only({ hasEmail: false })).toEqual(['b']);
+    expect(only({ hasPhone: true })).toEqual(['b']);
+  });
+
+  it('counts the filters that are set and cycles a toggle off, on, inverted', () => {
+    expect(countActiveFilters({ ...EMPTY_CONTACT_FILTERS, location: 'x', hasPhoto: false })).toBe(2);
+    expect([cycleTri(null), cycleTri(true), cycleTri(false)]).toEqual([true, false, null]);
+  });
+});
diff --git a/src/lib/contact-list-filters.ts b/src/lib/contact-list-filters.ts
new file mode 100644
index 00000000..2f214b83
--- /dev/null
+++ b/src/lib/contact-list-filters.ts
@@ -0,0 +1,115 @@
+import type { AnniversaryDate, ContactCard } from '../api/types';
+import { hasContactPhoto } from './contact-utils';
+
+// The contact list's advanced filters (webmail components/contacts/contact-list.tsx).
+
+export type TriState = boolean | null;
+
+export interface ContactListFilters {
+  organization: string;
+  jobTitle: string;
+  location: string;
+  emailDomain: string;
+  birthdayMonth: number | null;
+  hasEmail: TriState;
+  hasPhone: TriState;
+  hasPhoto: TriState;
+}
+
+export const EMPTY_CONTACT_FILTERS: ContactListFilters = {
+  organization: '',
+  jobTitle: '',
+  location: '',
+  emailDomain: '',
+  birthdayMonth: null,
+  hasEmail: null,
+  hasPhone: null,
+  hasPhoto: null,
+};
+
+/** Off, then "must have", then "must not have". */
+export function cycleTri(v: TriState): TriState {
+  return v === null ? true : v === true ? false : null;
+}
+
+export function countActiveFilters(f: ContactListFilters): number {
+  let n = 0;
+  if (f.organization.trim()) n++;
+  if (f.jobTitle.trim()) n++;
+  if (f.location.trim()) n++;
+  if (f.emailDomain.trim()) n++;
+  if (f.birthdayMonth !== null) n++;
+  if (f.hasEmail !== null) n++;
+  if (f.hasPhone !== null) n++;
+  if (f.hasPhoto !== null) n++;
+  return n;
+}
+
+function matchTri(actual: boolean, filter: TriState): boolean {
+  return filter === null || actual === filter;
+}
+
+function anniversaryMonth(date: AnniversaryDate): number | null {
+  if (typeof date === 'string') {
+    const iso = date.match(/^(\d{4})-(\d{2})/);
+    if (iso) return parseInt(iso[2], 10);
+    const partial = date.match(/^--(\d{2})/);
+    if (partial) return parseInt(partial[1], 10);
+    return null;
+  }
+  if ('month' in date && date.month) return date.month;
+  if ('utc' in date && date.utc) {
+    const d = new Date(date.utc);
+    return isNaN(d.getTime()) ? null : d.getMonth() + 1;
+  }
+  return null;
+}
+
+/** Whether `contact` passes every filter that is set. */
+export function matchesContactFilters(contact: ContactCard, filters: ContactListFilters): boolean {
+  const emails = contact.emails ? Object.values(contact.emails) : [];
+  const phones = contact.phones ? Object.values(contact.phones) : [];
+  if (!matchTri(emails.length > 0, filters.hasEmail)) return false;
+  if (!matchTri(phones.length > 0, filters.hasPhone)) return false;
+  if (!matchTri(hasContactPhoto(contact), filters.hasPhoto)) return false;
+
+  const org = filters.organization.trim().toLowerCase();
+  if (org) {
+    const orgs = contact.organizations ? Object.values(contact.organizations) : [];
+    if (!orgs.some((o) => o.name?.toLowerCase().includes(org) || o.units?.some((u) => u.name?.toLowerCase().includes(org)))) {
+      return false;
+    }
+  }
+
+  const job = filters.jobTitle.trim().toLowerCase();
+  if (job) {
+    const titles = contact.titles ? Object.values(contact.titles) : [];
+    if (!titles.some((ti) => ti.name?.toLowerCase().includes(job))) return false;
+  }
+
+  const loc = filters.location.trim().toLowerCase();
+  if (loc) {
+    const addresses = contact.addresses ? Object.values(contact.addresses) : [];
+    const match = addresses.some((a) => {
+      const parts = [a.full, a.fullAddress, a.locality, a.region, a.country, a.postcode, a.street,
+        ...(a.components ?? []).map((comp) => comp.value)];
+      return parts.some((p) => !!p && p.toLowerCase().includes(loc));
+    });
+    if (!match) return false;
+  }
+
+  const domain = filters.emailDomain.trim().toLowerCase().replace(/^@/, '');
+  if (domain) {
+    const match = emails.some((e) => {
+      const at = e.address?.toLowerCase().split('@');
+      return !!at && at.length > 1 && at[1].includes(domain);
+    });
+    if (!match) return false;
+  }
+
+  if (filters.birthdayMonth !== null) {
+    const anniversaries = contact.anniversaries ? Object.values(contact.anniversaries) : [];
+    if (!anniversaries.some((a) => a.kind === 'birth' && anniversaryMonth(a.date) === filters.birthdayMonth)) return false;
+  }
+  return true;
+}
diff --git a/src/screens/ContactsScreen.tsx b/src/screens/ContactsScreen.tsx
index f43e2be0..dc33e4a1 100644
--- a/src/screens/ContactsScreen.tsx
+++ b/src/screens/ContactsScreen.tsx
@@ -20,8 +20,12 @@ import { useBackWhileFocused } from '../lib/use-back-while-focused';
 import { listBackStep } from '../lib/list-back';
 import type { NativeStackNavigationProp } from '@react-navigation/native-stack';
 import {
-  Search, Plus, UserCircle, X, Menu, Trash2, Tag, FolderInput, Upload, CheckSquare, Share2,
+  Search, Plus, UserCircle, X, Menu, Trash2, Tag, FolderInput, Upload, CheckSquare, Share2, Filter,
 } from '../components/icons';
+import { ContactFiltersPanel } from '../components/contacts/ContactFiltersPanel';
+import {
+  countActiveFilters, EMPTY_CONTACT_FILTERS, matchesContactFilters, type ContactListFilters,
+} from '../lib/contact-list-filters';
 import type { RootStackParamList } from '../navigation/types';
 import type { ContactCard } from '../api/types';
 import {
@@ -137,6 +141,9 @@ export default function ContactsScreen({ onOpenContact, activeContactId = null }
   const sortByLastName = useSettingsStore((s) => s.sortContactsByLastName);
 
   const [searchQuery, setSearchQuery] = React.useState('');
+  const [filtersOpen, setFiltersOpen] = React.useState(false);
+  const [filters, setFilters] = React.useState<ContactListFilters>(EMPTY_CONTACT_FILTERS);
+  const activeFilterCount = countActiveFilters(filters);
   // The company directory shows in place of the list (#1253). Not a stored
   // category: it is the server's list, not the user's contacts.
   const [showDirectory, setShowDirectory] = React.useState(false);
@@ -201,9 +208,11 @@ export default function ContactsScreen({ onOpenContact, activeContactId = null }
   );
 
   const visible = React.useMemo(() => {
-    if (!searchQuery) return sorted;
-    return sorted.filter((c) => matchesContactSearch(c, searchQuery));
-  }, [sorted, searchQuery]);
+    // The filters sit under the search field and apply while it is open.
+    const filtered = searchActive && activeFilterCount > 0 ? sorted.filter((c) => matchesContactFilters(c, filters)) : sorted;
+    if (!searchQuery) return filtered;
+    return filtered.filter((c) => matchesContactSearch(c, searchQuery));
+  }, [sorted, searchQuery, filters, activeFilterCount, searchActive]);
 
   const sections = React.useMemo<Section[]>(() => {
     if (groupByLetter) return groupContacts(visible, sortByLastName);
@@ -538,8 +547,20 @@ export default function ContactsScreen({ onOpenContact, activeContactId = null }
               <X size={16} color={c.textMuted} />
             </Pressable>
           )}
+          <Pressable
+            onPress={() => setFiltersOpen((v) => !v)}
+            hitSlop={8}
+            accessibilityRole="button"
+            accessibilityLabel={t('contacts.filters.toggle', 'Filters')}
+            accessibilityState={{ expanded: filtersOpen }}
+          >
+            <Filter size={16} color={activeFilterCount > 0 ? c.primary : c.textMuted} />
+          </Pressable>
         </View>
       )}
+      {searchActive && filtersOpen && (
+        <ContactFiltersPanel filters={filters} onChange={setFilters} onClose={() => setFiltersOpen(false)} />
+      )}
 
       {!selectionMode && (
         <ScrollView