diff --git a/res/css/views/dialogs/_InviteDialog.scss b/res/css/views/dialogs/_InviteDialog.scss
index a77d0bfbba..b9063f46b9 100644
--- a/res/css/views/dialogs/_InviteDialog.scss
+++ b/res/css/views/dialogs/_InviteDialog.scss
@@ -89,6 +89,13 @@ limitations under the License.
         font-weight: bold;
         text-transform: uppercase;
     }
+
+    .mx_InviteDialog_subname {
+        margin-bottom: 10px;
+        margin-top: -10px; // HACK: Positioning with margins is bad
+        font-size: $font-12px;
+        color: $muted-fg-color;
+    }
 }
 
 .mx_InviteDialog_roomTile {
@@ -226,3 +233,7 @@ limitations under the License.
 .mx_InviteDialog_addressBar {
     margin-right: 45px;
 }
+
+.mx_InviteDialog_helpText .mx_AccessibleButton_kind_link {
+    padding: 0;
+}
diff --git a/src/RoomInvite.js b/src/RoomInvite.js
index 420561ea41..cae4501901 100644
--- a/src/RoomInvite.js
+++ b/src/RoomInvite.js
@@ -24,6 +24,7 @@ import * as sdk from './';
 import { _t } from './languageHandler';
 import {KIND_DM, KIND_INVITE} from "./components/views/dialogs/InviteDialog";
 import CommunityPrototypeInviteDialog from "./components/views/dialogs/CommunityPrototypeInviteDialog";
+import GroupStore from "./stores/GroupStore";
 
 /**
  * Invites multiple addresses to a room
@@ -64,6 +65,24 @@ export function showCommunityRoomInviteDialog(roomId, communityName) {
     );
 }
 
+export function showCommunityInviteDialog(communityId) {
+    const rooms = GroupStore.getGroupRooms(communityId)
+        .map(r => MatrixClientPeg.get().getRoom(r.roomId))
+        .filter(r => !!r);
+    let chat = rooms.find(r => {
+        const idState = r.currentState.getStateEvents("im.vector.general_chat", "");
+        if (!idState || idState.getContent()['groupId'] !== communityId) return false;
+        return true;
+    });
+    if (!chat) chat = rooms[0];
+    if (chat) {
+        const summary = GroupStore.getSummary(communityId);
+        showCommunityRoomInviteDialog(chat.roomId, summary?.profile?.name || communityId);
+    } else {
+        throw new Error("Failed to locate appropriate room to start an invite in");
+    }
+}
+
 /**
  * Checks if the given MatrixEvent is a valid 3rd party user invite.
  * @param {MatrixEvent} event The event to check
diff --git a/src/components/views/dialogs/InviteDialog.js b/src/components/views/dialogs/InviteDialog.js
index 6cd0b22505..934ed12ac1 100644
--- a/src/components/views/dialogs/InviteDialog.js
+++ b/src/components/views/dialogs/InviteDialog.js
@@ -32,11 +32,13 @@ import IdentityAuthClient from "../../../IdentityAuthClient";
 import Modal from "../../../Modal";
 import {humanizeTime} from "../../../utils/humanize";
 import createRoom, {canEncryptToAllUsers, privateShouldBeEncrypted} from "../../../createRoom";
-import {inviteMultipleToRoom} from "../../../RoomInvite";
+import {inviteMultipleToRoom, showCommunityInviteDialog} from "../../../RoomInvite";
 import {Key} from "../../../Keyboard";
 import {Action} from "../../../dispatcher/actions";
 import {DefaultTagID} from "../../../stores/room-list/models";
 import RoomListStore from "../../../stores/room-list/RoomListStore";
+import TagOrderStore from "../../../stores/TagOrderStore";
+import GroupStore from "../../../stores/GroupStore";
 
 // we have a number of types defined from the Matrix spec which can't reasonably be altered here.
 /* eslint-disable camelcase */
@@ -909,12 +911,24 @@ export default class InviteDialog extends React.PureComponent {
         this.props.onFinished();
     };
 
+    _onCommunityInviteClick = (e) => {
+        this.props.onFinished();
+        showCommunityInviteDialog(TagOrderStore.getSelectedPrototypeTag());
+    };
+
     _renderSection(kind: "recents"|"suggestions") {
         let sourceMembers = kind === 'recents' ? this.state.recents : this.state.suggestions;
         let showNum = kind === 'recents' ? this.state.numRecentsShown : this.state.numSuggestionsShown;
         const showMoreFn = kind === 'recents' ? this._showMoreRecents.bind(this) : this._showMoreSuggestions.bind(this);
         const lastActive = (m) => kind === 'recents' ? m.lastActive : null;
         let sectionName = kind === 'recents' ? _t("Recent Conversations") : _t("Suggestions");
+        let sectionSubname = null;
+
+        if (kind === 'suggestions' && TagOrderStore.getSelectedPrototypeTag()) {
+            const summary = GroupStore.getSummary(TagOrderStore.getSelectedPrototypeTag());
+            const communityName = summary?.profile?.name || TagOrderStore.getSelectedPrototypeTag();
+            sectionSubname = _t("May include members not in %(communityName)s", {communityName});
+        }
 
         if (this.props.kind === KIND_INVITE) {
             sectionName = kind === 'recents' ? _t("Recently Direct Messaged") : _t("Suggestions");
@@ -993,6 +1007,7 @@ export default class InviteDialog extends React.PureComponent {
         return (
             <div className='mx_InviteDialog_section'>
                 <h3>{sectionName}</h3>
+                {sectionSubname ? <p className="mx_InviteDialog_subname">{sectionSubname}</p> : null}
                 {tiles}
                 {showMore}
             </div>
@@ -1083,6 +1098,34 @@ export default class InviteDialog extends React.PureComponent {
                     return <a href={makeUserPermalink(userId)} rel="noreferrer noopener" target="_blank">{userId}</a>;
                 }},
             );
+            if (TagOrderStore.getSelectedPrototypeTag()) {
+                const communityId = TagOrderStore.getSelectedPrototypeTag();
+                const communityName = GroupStore.getSummary(communityId)?.profile?.name || communityId;
+                helpText = _t(
+                    "Start a conversation with someone using their name, username (like <userId/>) or email address. " +
+                    "This won't invite them to %(communityName)s. To invite someone to %(communityName)s, click " +
+                    "<a>here</a>.",
+                    {communityName}, {
+                        userId: () => {
+                            return (
+                                <a
+                                    href={makeUserPermalink(userId)}
+                                    rel="noreferrer noopener"
+                                    target="_blank"
+                                >{userId}</a>
+                            );
+                        },
+                        a: (sub) => {
+                            return (
+                                <AccessibleButton
+                                    kind="link"
+                                    onClick={this._onCommunityInviteClick}
+                                >{sub}</AccessibleButton>
+                            );
+                        },
+                    },
+                );
+            }
             buttonText = _t("Go");
             goButtonFn = this._startDm;
         } else { // KIND_INVITE
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index 02382d4ff7..18ffd96bec 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -1706,9 +1706,11 @@
     "The following users might not exist or are invalid, and cannot be invited: %(csvNames)s": "The following users might not exist or are invalid, and cannot be invited: %(csvNames)s",
     "Recent Conversations": "Recent Conversations",
     "Suggestions": "Suggestions",
+    "May include members not in %(communityName)s": "May include members not in %(communityName)s",
     "Recently Direct Messaged": "Recently Direct Messaged",
     "Direct Messages": "Direct Messages",
     "Start a conversation with someone using their name, username (like <userId/>) or email address.": "Start a conversation with someone using their name, username (like <userId/>) or email address.",
+    "Start a conversation with someone using their name, username (like <userId/>) or email address. This won't invite them to %(communityName)s. To invite someone to %(communityName)s, click <a>here</a>.": "Start a conversation with someone using their name, username (like <userId/>) or email address. This won't invite them to %(communityName)s. To invite someone to %(communityName)s, click <a>here</a>.",
     "Go": "Go",
     "Invite someone using their name, username (like <userId/>), email address or <a>share this room</a>.": "Invite someone using their name, username (like <userId/>), email address or <a>share this room</a>.",
     "a new master key signature": "a new master key signature",