diff --git a/app/soapbox/components/ui/toast/toast.tsx b/app/soapbox/components/ui/toast/toast.tsx
index 38bda317e..ce6847ced 100644
--- a/app/soapbox/components/ui/toast/toast.tsx
+++ b/app/soapbox/components/ui/toast/toast.tsx
@@ -8,6 +8,8 @@ import { ToastText, ToastType } from 'soapbox/toast';
 
 import HStack from '../hstack/hstack';
 import Icon from '../icon/icon';
+import Stack from '../stack/stack';
+import Text from '../text/text';
 
 const renderText = (text: ToastText) => {
   if (typeof text === 'string') {
@@ -24,13 +26,14 @@ interface IToast {
   action?(): void
   actionLink?: string
   actionLabel?: ToastText
+  summary?: string
 }
 
 /**
  * Customizable Toasts for in-app notifications.
  */
 const Toast = (props: IToast) => {
-  const { t, message, type, action, actionLink, actionLabel } = props;
+  const { t, message, type, action, actionLink, actionLabel, summary } = props;
 
   const dismissToast = () => toast.dismiss(t.id);
 
@@ -109,35 +112,46 @@ const Toast = (props: IToast) => {
         })
       }
     >
-      <HStack space={4} alignItems='start'>
-        <HStack space={3} justifyContent='between' alignItems='start' className='w-0 flex-1'>
-          <HStack space={3} alignItems='start' className='w-0 flex-1'>
-            <div className='shrink-0'>
-              {renderIcon()}
-            </div>
-
-            <p className='pt-0.5 text-sm text-gray-900 dark:text-gray-100' data-testid='toast-message'>
-              {renderText(message)}
-            </p>
+      <Stack space={2}>
+        <HStack space={4} alignItems='start'>
+          <HStack space={3} justifyContent='between' alignItems='start' className='w-0 flex-1'>
+            <HStack space={3} alignItems='start' className='w-0 flex-1'>
+              <div className='shrink-0'>
+                {renderIcon()}
+              </div>
+
+              <Text
+                size='sm'
+                data-testid='toast-message'
+                className='pt-0.5'
+                weight={typeof summary === 'undefined' ? 'normal' : 'medium'}
+              >
+                {renderText(message)}
+              </Text>
+            </HStack>
+
+            {/* Action */}
+            {renderAction()}
           </HStack>
 
-          {/* Action */}
-          {renderAction()}
+          {/* Dismiss Button */}
+          <div className='flex shrink-0 pt-0.5'>
+            <button
+              type='button'
+              className='inline-flex rounded-md text-gray-600 hover:text-gray-700 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 dark:text-gray-600 dark:hover:text-gray-500'
+              onClick={dismissToast}
+              data-testid='toast-dismiss'
+            >
+              <span className='sr-only'>Close</span>
+              <Icon src={require('@tabler/icons/x.svg')} className='h-5 w-5' />
+            </button>
+          </div>
         </HStack>
 
-        {/* Dismiss Button */}
-        <div className='flex shrink-0 pt-0.5'>
-          <button
-            type='button'
-            className='inline-flex rounded-md text-gray-600 hover:text-gray-700 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 dark:text-gray-600 dark:hover:text-gray-500'
-            onClick={dismissToast}
-            data-testid='toast-dismiss'
-          >
-            <span className='sr-only'>Close</span>
-            <Icon src={require('@tabler/icons/x.svg')} className='h-5 w-5' />
-          </button>
-        </div>
-      </HStack>
+        {summary ? (
+          <Text theme='muted' size='sm'>{summary}</Text>
+        ) : null}
+      </Stack>
     </div>
   );
 };
diff --git a/app/soapbox/features/group/components/group-member-list-item.tsx b/app/soapbox/features/group/components/group-member-list-item.tsx
index 4fa3ccb7a..c88f4e58d 100644
--- a/app/soapbox/features/group/components/group-member-list-item.tsx
+++ b/app/soapbox/features/group/components/group-member-list-item.tsx
@@ -15,10 +15,14 @@ import { useAccount, useBlockGroupMember, useDemoteGroupMember, usePromoteGroupM
 import { GroupRoles } from 'soapbox/schemas/group-member';
 import toast from 'soapbox/toast';
 
+import { MAX_ADMIN_COUNT } from '../group-members';
+
 import type { Menu as IMenu } from 'soapbox/components/dropdown-menu';
 import type { Group, GroupMember } from 'soapbox/types/entities';
 
 const messages = defineMessages({
+  adminLimitTitle: { id: 'group.member.admin.limit.title', defaultMessage: 'Admin limit reached' },
+  adminLimitSummary: { id: 'group.member.admin.limit.summary', defaultMessage: 'You can assign up to {count} admins for the group at this time.' },
   blockConfirm: { id: 'confirmations.block_from_group.confirm', defaultMessage: 'Ban' },
   blockFromGroupHeading: { id: 'confirmations.block_from_group.heading', defaultMessage: 'Ban From Group' },
   blockFromGroupMessage: { id: 'confirmations.block_from_group.message', defaultMessage: 'Are you sure you want to ban @{name} from the group?' },
@@ -39,10 +43,11 @@ const messages = defineMessages({
 interface IGroupMemberListItem {
   member: GroupMember
   group: Group
+  canPromoteToAdmin: boolean
 }
 
 const GroupMemberListItem = (props: IGroupMemberListItem) => {
-  const { member, group } = props;
+  const { canPromoteToAdmin, member, group } = props;
 
   const dispatch = useAppDispatch();
   const features = useFeatures();
@@ -90,6 +95,13 @@ const GroupMemberListItem = (props: IGroupMemberListItem) => {
   };
 
   const handleAdminAssignment = () => {
+    if (!canPromoteToAdmin) {
+      toast.error(intl.formatMessage(messages.adminLimitTitle), {
+        summary: intl.formatMessage(messages.adminLimitSummary, { count: MAX_ADMIN_COUNT }),
+      });
+      return;
+    }
+
     dispatch(openModal('CONFIRM', {
       heading: intl.formatMessage(messages.promoteConfirm),
       message: intl.formatMessage(messages.promoteConfirmMessage, { name: account?.username }),
diff --git a/app/soapbox/features/group/group-members.tsx b/app/soapbox/features/group/group-members.tsx
index 2facf912f..a3a790a62 100644
--- a/app/soapbox/features/group/group-members.tsx
+++ b/app/soapbox/features/group/group-members.tsx
@@ -3,6 +3,7 @@ import React, { useMemo } from 'react';
 
 import { PendingItemsRow } from 'soapbox/components/pending-items-row';
 import ScrollableList from 'soapbox/components/scrollable-list';
+import { useFeatures } from 'soapbox/hooks';
 import { useGroup } from 'soapbox/hooks/api';
 import { useGroupMembershipRequests } from 'soapbox/hooks/api/groups/useGroupMembershipRequests';
 import { useGroupMembers } from 'soapbox/hooks/api/useGroupMembers';
@@ -18,9 +19,13 @@ interface IGroupMembers {
   params: { id: string }
 }
 
+export const MAX_ADMIN_COUNT = 5;
+
 const GroupMembers: React.FC<IGroupMembers> = (props) => {
   const groupId = props.params.id;
 
+  const features = useFeatures();
+
   const { group, isFetching: isFetchingGroup } = useGroup(groupId);
   const { groupMembers: owners, isFetching: isFetchingOwners } = useGroupMembers(groupId, GroupRoles.OWNER);
   const { groupMembers: admins, isFetching: isFetchingAdmins } = useGroupMembers(groupId, GroupRoles.ADMIN);
@@ -35,6 +40,10 @@ const GroupMembers: React.FC<IGroupMembers> = (props) => {
     ...users,
   ], [owners, admins, users]);
 
+  const canPromoteToAdmin = features.groupsAdminMax
+    ? members.filter((member) => member.role === GroupRoles.ADMIN).length < MAX_ADMIN_COUNT
+    : true;
+
   return (
     <>
       <ScrollableList
@@ -58,6 +67,7 @@ const GroupMembers: React.FC<IGroupMembers> = (props) => {
             group={group as Group}
             member={member}
             key={member.account.id}
+            canPromoteToAdmin={canPromoteToAdmin}
           />
         ))}
       </ScrollableList>
diff --git a/app/soapbox/hooks/api/useGroupMembers.ts b/app/soapbox/hooks/api/useGroupMembers.ts
index 669f1c082..3a1c99af5 100644
--- a/app/soapbox/hooks/api/useGroupMembers.ts
+++ b/app/soapbox/hooks/api/useGroupMembers.ts
@@ -1,10 +1,11 @@
 import { Entities } from 'soapbox/entity-store/entities';
 import { useEntities } from 'soapbox/entity-store/hooks';
 import { GroupMember, groupMemberSchema } from 'soapbox/schemas';
+import { GroupRoles } from 'soapbox/schemas/group-member';
 
 import { useApi } from '../useApi';
 
-function useGroupMembers(groupId: string, role: string) {
+function useGroupMembers(groupId: string, role: GroupRoles) {
   const api = useApi();
 
   const { entities, ...result } = useEntities<GroupMember>(
diff --git a/app/soapbox/locales/en.json b/app/soapbox/locales/en.json
index af5a058c6..145b26e49 100644
--- a/app/soapbox/locales/en.json
+++ b/app/soapbox/locales/en.json
@@ -789,6 +789,8 @@
   "group.leave.label": "Leave",
   "group.leave.success": "Left the group",
   "group.manage": "Manage Group",
+  "group.member.admin.limit.summary": "You can assign up to {count} admins for the group at this time.",
+  "group.member.admin.limit.title": "Admin limit reached",
   "group.popover.action": "View Group",
   "group.popover.summary": "You must be a member of the group in order to reply to this status.",
   "group.popover.title": "Membership required",
diff --git a/app/soapbox/toast.tsx b/app/soapbox/toast.tsx
index 6095737f4..820b68b86 100644
--- a/app/soapbox/toast.tsx
+++ b/app/soapbox/toast.tsx
@@ -14,6 +14,7 @@ interface IToastOptions {
   actionLink?: string
   actionLabel?: ToastText
   duration?: number
+  summary?: string
 }
 
 const DEFAULT_DURATION = 4000;
diff --git a/app/soapbox/utils/features.ts b/app/soapbox/utils/features.ts
index 8558e3b9d..afbece3b4 100644
--- a/app/soapbox/utils/features.ts
+++ b/app/soapbox/utils/features.ts
@@ -529,6 +529,11 @@ const getInstanceFeatures = (instance: Instance) => {
      */
     groups: v.build === UNRELEASED,
 
+    /**
+     * Cap # of Group Admins to 5
+     */
+    groupsAdminMax: v.software === TRUTHSOCIAL,
+
     /**
      * Can see trending/suggested Groups.
      */