diff --git a/src/components/ModalTags.tsx b/src/components/ModalTags.tsx
index c885d65..5adbf6e 100644
--- a/src/components/ModalTags.tsx
+++ b/src/components/ModalTags.tsx
@@ -2,9 +2,11 @@ import { IAPITag } from "@/pages/profile_tasks.dto";
 import apiClient from "@/services/api";
 import { cn } from "@/utils/class-merge";
 import { BookOpenIcon, CheckIcon, DocumentDuplicateIcon, PlusCircleIcon } from "@heroicons/react/24/outline";
+import { XMarkIcon } from "@heroicons/react/24/solid";
 import { FunctionComponent } from "preact";
 import { Dispatch, StateUpdater, useEffect, useRef, useState } from "preact/hooks";
 import Button from "./ui/Button";
+import Dialog from "./ui/Dialog";
 import ModalWindow, { ModalWindowProps } from "./ui/Modal";
 
 export interface ITags {
@@ -40,6 +42,8 @@ const ModalTags: FunctionComponent<ModalTagsProps> = ({
   const [showSecondTags, setShowSecondTags] = useState(false);
   const [showAddFirstTag, setShowAddFirstTag] = useState(false);
   const [showAddSecondTag, setShowAddSecondTag] = useState(false);
+  const [showErrorDialog, setShowErrorDialog] = useState(false);
+  const [errorMessage, setErrorMessage] = useState<string[]>([]);
   const addFirstTagRef = useRef<HTMLInputElement>(null);
   const addSecondTagRef = useRef<HTMLInputElement>(null);
   useEffect(() => {
@@ -51,6 +55,7 @@ const ModalTags: FunctionComponent<ModalTagsProps> = ({
 
   const handleCreateTag = async () => {
     if (!addFirstTagRef.current?.value && !addSecondTagRef.current?.value) return;
+
     const data: { subject_name?: string; taskType_name?: string } = {};
     if (addFirstTagRef.current && addFirstTagRef.current.value) data.subject_name = addFirstTagRef.current.value;
     if (addSecondTagRef.current && addSecondTagRef.current.value) data.taskType_name = addSecondTagRef.current.value;
@@ -71,139 +76,193 @@ const ModalTags: FunctionComponent<ModalTagsProps> = ({
         setShowAddSecondTag(false);
       }
     }
+    if (addFirstTagRef.current) addFirstTagRef.current.value = "";
+    if (addSecondTagRef.current) addSecondTagRef.current.value = "";
+  };
+
+  const handleDeleteTag = async (id: number) => {
+    const data: { subject_id?: number; taskType_id?: number } = {};
+    if (showFirstTags) data.subject_id = id;
+    if (showSecondTags) data.taskType_id = id;
+    const response = await apiClient<{ error?: string }>(`/api/tags/delete_tag/`, {
+      method: "DELETE",
+      body: JSON.stringify(data),
+    });
+    if (!response.error) {
+      refreshTags();
+    } else {
+      setShowErrorDialog(true);
+      const match = response.error?.match(/\[(.+)\]/);
+      if (match) setErrorMessage(match[1].split(", ").map((s) => s.trim().replace(/'/g, "")));
+    }
   };
 
   return (
-    <ModalWindow
-      isOpen={isOpen}
-      {...rest}
-      setIsOpen={setIsOpen}
-      onClose={() => {
-        onClose!();
-        setShowFirstTags(false);
-        setShowSecondTags(false);
-        setShowAddFirstTag(false);
-        setShowAddSecondTag(false);
-      }}
-      className="relative h-[14rem] justify-between py-4 md:h-[14rem] md:w-[25rem]"
-      zIndex={70}
-    >
-      <p class="text-2xl font-semibold">Теги</p>
-      <div class="flex w-[85%] flex-col gap-2 md:w-full">
-        <Button
-          className="flex w-full flex-row items-center justify-center gap-1 text-[1rem]!"
-          onClick={() => {
-            setShowFirstTags(!showFirstTags);
-            setShowSecondTags(false);
-            setShowAddFirstTag(false);
-            setShowAddSecondTag(false);
-          }}
-        >
-          <BookOpenIcon class="size-6" />
-          {tagsList?.first?.find((tag) => tag.id === value?.first)?.name || "Предмет"}
-        </Button>
-        <Button
-          className="flex w-full flex-row items-center justify-center gap-1 text-[1rem]! break-words"
-          onClick={() => {
-            setShowSecondTags(!showSecondTags);
-            setShowFirstTags(false);
-            setShowAddFirstTag(false);
-            setShowAddSecondTag(false);
-          }}
-        >
-          <DocumentDuplicateIcon class="size-6" />
-          {tagsList?.second?.find((tag) => tag.id === value?.second)?.name || "Тема"}
-        </Button>
-        {showFirstTags && (
-          <div class="absolute top-full left-0 mt-3 ml-2 flex h-fit w-[18rem] flex-col items-center gap-3 md:top-0 md:left-full md:mt-0 md:ml-5">
-            <div class="flex h-fit max-h-[45vh] w-full flex-col gap-3 overflow-y-auto rounded-[4rem] bg-white px-8 py-4 text-xs">
-              {tagsList?.first.map((tag) => (
-                <div
-                  class="flex cursor-pointer flex-row gap-2"
-                  onClick={() =>
-                    onChange?.((prev) => {
-                      return { ...prev, first: tag.id };
-                    })
-                  }
-                >
+    <>
+      <Dialog
+        isOpen={showErrorDialog}
+        setIsOpen={setShowErrorDialog}
+        title="Ошибка!"
+        confirmation={false}
+        cancelText="Ок"
+      >
+        <div class="flex flex-col items-start gap-1">
+          <p class="mb-6 text-sm sm:text-[1rem]">
+            Данный тег есть в других задачах. Поменяйте теги в них и повторите операцию.
+          </p>
+          <p class="text-sm sm:text-[1rem]">Задачи с этим тегом:</p>
+          <ul class="ms-6 list-disc">
+            {errorMessage.map((s, i) => (
+              <li key={i}>{s}</li>
+            ))}
+          </ul>
+        </div>
+      </Dialog>
+      <ModalWindow
+        isOpen={isOpen}
+        {...rest}
+        setIsOpen={setIsOpen}
+        onClose={() => {
+          onClose!();
+          setShowFirstTags(false);
+          setShowSecondTags(false);
+          setShowAddFirstTag(false);
+          setShowAddSecondTag(false);
+        }}
+        className="relative h-[14rem] justify-between py-4 md:h-[14rem] md:w-[25rem]"
+        zIndex={70}
+      >
+        <p class="text-2xl font-semibold">Теги</p>
+        <div class="flex w-[85%] flex-col gap-2 md:w-full">
+          <Button
+            className="flex w-full flex-row items-center justify-center gap-1 text-[1rem]!"
+            onClick={() => {
+              setShowFirstTags(!showFirstTags);
+              setShowSecondTags(false);
+              setShowAddFirstTag(false);
+              setShowAddSecondTag(false);
+            }}
+          >
+            <BookOpenIcon class="size-6" />
+            {tagsList?.first?.find((tag) => tag.id === value?.first)?.name || "Предмет"}
+          </Button>
+          <Button
+            className="flex w-full flex-row items-center justify-center gap-1 text-[1rem]! break-words"
+            onClick={() => {
+              setShowSecondTags(!showSecondTags);
+              setShowFirstTags(false);
+              setShowAddFirstTag(false);
+              setShowAddSecondTag(false);
+            }}
+          >
+            <DocumentDuplicateIcon class="size-6" />
+            {tagsList?.second?.find((tag) => tag.id === value?.second)?.name || "Тема"}
+          </Button>
+          {showFirstTags && (
+            <div class="absolute top-full left-0 mt-3 ml-2 flex h-fit w-[18rem] flex-col items-center gap-3 md:top-0 md:left-full md:mt-0 md:ml-5">
+              <div class="flex h-fit max-h-[15rem] w-full flex-col gap-3 overflow-y-auto rounded-[4rem] bg-white px-8 py-4 text-xs">
+                {tagsList?.first.map((tag) => (
                   <div
-                    class={cn(
-                      "pointer-events-none flex aspect-square size-4 flex-col items-center justify-center rounded-full border-1 border-black text-white select-none",
-                      {
-                        "bg-black": value?.first === tag.id,
-                      }
-                    )}
+                    class="flex cursor-pointer flex-row items-center gap-2"
+                    onClick={() =>
+                      onChange?.((prev) => {
+                        return { ...prev, first: tag.id };
+                      })
+                    }
                   >
-                    ✓
+                    <div
+                      class={cn(
+                        "pointer-events-none flex aspect-square size-4 flex-col items-center justify-center rounded-full border-1 border-black text-white select-none",
+                        {
+                          "bg-black": value?.first === tag.id,
+                        }
+                      )}
+                    >
+                      ✓
+                    </div>
+                    <p class="flex-1">{tag.name}</p>
+                    <XMarkIcon
+                      class="size-4 cursor-pointer"
+                      onClick={(e) => {
+                        e.stopPropagation();
+                        handleDeleteTag(tag.id);
+                      }}
+                    />
                   </div>
-                  <p>{tag.name}</p>
-                </div>
-              ))}
-              <button
-                class="mt-2 flex w-full cursor-pointer flex-row items-center gap-2"
-                onClick={() => {
-                  setShowAddFirstTag(!showAddFirstTag);
-                  setTimeout(() => addFirstTagRef.current?.focus(), 100);
-                }}
-              >
-                <PlusCircleIcon class="size-5" />
-                <span>Добавить</span>
-              </button>
-            </div>
-            {showAddFirstTag && (
-              <div class="flex w-full flex-row items-center rounded-[4rem] bg-white px-8 py-4 text-xs">
-                <input placeholder="Введите текст" class="flex-1 outline-0" ref={addFirstTagRef} />
-                <CheckIcon class="size-6 cursor-pointer" onClick={handleCreateTag} />
-              </div>
-            )}
-          </div>
-        )}
-        {showSecondTags && (
-          <div class="absolute top-full left-0 mt-3 ml-2 flex h-fit w-[18rem] flex-col items-center gap-3 md:top-0 md:left-full md:mt-0 md:ml-5">
-            <div class="flex h-fit max-h-[45vh] w-full flex-col gap-3 overflow-y-auto rounded-[4rem] bg-white px-8 py-4 text-xs">
-              {tagsList?.second.map((tag) => (
-                <div
-                  class="flex cursor-pointer flex-row gap-2"
-                  onClick={() =>
-                    onChange?.((prev) => {
-                      return { ...prev, second: tag.id };
-                    })
-                  }
+                ))}
+                <button
+                  class="mt-2 flex w-full cursor-pointer flex-row items-center gap-2"
+                  onClick={() => {
+                    setShowAddFirstTag(!showAddFirstTag);
+                    setTimeout(() => addFirstTagRef.current?.focus(), 100);
+                  }}
                 >
-                  <div
-                    class={cn(
-                      "pointer-events-none flex aspect-square size-4 flex-col items-center justify-center rounded-full border-1 border-black text-white select-none",
-                      {
-                        "bg-black": value?.second === tag.id,
-                      }
-                    )}
-                  >
-                    ✓
-                  </div>
-                  <p>{tag.name}</p>
-                </div>
-              ))}
-              <button
-                class="mt-2 flex w-full cursor-pointer flex-row items-center gap-2"
-                onClick={() => {
-                  setShowAddSecondTag(!showAddSecondTag);
-                  setTimeout(() => addSecondTagRef.current?.focus(), 100);
-                }}
-              >
-                <PlusCircleIcon class="size-5" />
-                <span>Добавить</span>
-              </button>
-            </div>
-            {showAddSecondTag && (
-              <div class="flex w-full flex-row items-center rounded-[4rem] bg-white px-8 py-4 text-xs">
-                <input placeholder="Введите текст" class="flex-1 outline-0" ref={addSecondTagRef} />
-                <CheckIcon class="size-6 cursor-pointer" onClick={handleCreateTag} />
+                  <PlusCircleIcon class="size-5" />
+                  <span>Добавить</span>
+                </button>
               </div>
-            )}
-          </div>
-        )}
-      </div>
-    </ModalWindow>
+              {showAddFirstTag && (
+                <div class="flex w-full flex-row items-center rounded-[4rem] bg-white px-8 py-4 text-xs">
+                  <input placeholder="Введите текст" class="flex-1 outline-0" ref={addFirstTagRef} />
+                  <CheckIcon class="size-6 cursor-pointer" onClick={handleCreateTag} />
+                </div>
+              )}
+            </div>
+          )}
+          {showSecondTags && (
+            <div class="absolute top-full left-0 mt-3 ml-2 flex h-fit w-[18rem] flex-col items-center gap-3 md:top-0 md:left-full md:mt-0 md:ml-5">
+              <div class="flex h-fit max-h-[15rem] w-full flex-col gap-3 overflow-y-auto rounded-[4rem] bg-white px-8 py-4 text-xs">
+                {tagsList?.second.map((tag) => (
+                  <div
+                    class="flex cursor-pointer flex-row gap-2"
+                    onClick={() =>
+                      onChange?.((prev) => {
+                        return { ...prev, second: tag.id };
+                      })
+                    }
+                  >
+                    <div
+                      class={cn(
+                        "pointer-events-none flex aspect-square size-4 flex-col items-center justify-center rounded-full border-1 border-black text-white select-none",
+                        {
+                          "bg-black": value?.second === tag.id,
+                        }
+                      )}
+                    >
+                      ✓
+                    </div>
+                    <p class="flex-1">{tag.name}</p>
+                    <XMarkIcon
+                      class="size-4 cursor-pointer"
+                      onClick={(e) => {
+                        e.stopPropagation();
+                        handleDeleteTag(tag.id);
+                      }}
+                    />
+                  </div>
+                ))}
+                <button
+                  class="mt-2 flex w-full cursor-pointer flex-row items-center gap-2"
+                  onClick={() => {
+                    setShowAddSecondTag(!showAddSecondTag);
+                    setTimeout(() => addSecondTagRef.current?.focus(), 100);
+                  }}
+                >
+                  <PlusCircleIcon class="size-5" />
+                  <span>Добавить</span>
+                </button>
+              </div>
+              {showAddSecondTag && (
+                <div class="flex w-full flex-row items-center rounded-[4rem] bg-white px-8 py-4 text-xs">
+                  <input placeholder="Введите текст" class="flex-1 outline-0" ref={addSecondTagRef} />
+                  <CheckIcon class="size-6 cursor-pointer" onClick={handleCreateTag} />
+                </div>
+              )}
+            </div>
+          )}
+        </div>
+      </ModalWindow>
+    </>
   );
 };
 
diff --git a/src/components/ui/Dialog.tsx b/src/components/ui/Dialog.tsx
index a6090a6..ac4a0ee 100644
--- a/src/components/ui/Dialog.tsx
+++ b/src/components/ui/Dialog.tsx
@@ -5,20 +5,21 @@ interface DialogProps {
   isOpen: boolean;
   setIsOpen: (isOpen: boolean) => void;
   title: string;
-  content: string;
-  onConfirm: () => void;
+  onConfirm?: () => void;
   confirmText?: string;
   cancelText?: string;
+  confirmation?: boolean;
 }
 
 const Dialog: FunctionComponent<DialogProps> = ({
   isOpen,
   setIsOpen,
   title,
-  content,
-  onConfirm,
+  children,
+  onConfirm = () => {},
   confirmText = "Подтвердить",
   cancelText = "Отмена",
+  confirmation = true,
 }) => {
   if (!isOpen) return null;
 
@@ -26,20 +27,28 @@ const Dialog: FunctionComponent<DialogProps> = ({
     <div class="fixed inset-0 z-150 flex items-center justify-center bg-black/50">
       <div class="w-full max-w-md rounded-[4rem] bg-white p-6 shadow-lg">
         <h2 class="mb-4 text-xl font-semibold">{title}</h2>
-        <p class="mb-6 text-sm sm:text-[1rem]">{content}</p>
+        {children}
         <div class="flex justify-end gap-4">
-          <Button onClick={() => setIsOpen(false)} className="bg-gray-200 text-gray-800 hover:bg-gray-300">
-            {cancelText}
-          </Button>
-          <Button
-            onClick={() => {
-              onConfirm();
-              setIsOpen(false);
-            }}
-            color="red"
-          >
-            {confirmText}
-          </Button>
+          {confirmation ? (
+            <>
+              <Button onClick={() => setIsOpen(false)} className="bg-gray-200 text-gray-800 hover:bg-gray-300">
+                {cancelText}
+              </Button>
+              <Button
+                onClick={() => {
+                  onConfirm();
+                  setIsOpen(false);
+                }}
+                color="red"
+              >
+                {confirmText}
+              </Button>
+            </>
+          ) : (
+            <Button onClick={() => setIsOpen(false)} className="bg-gray-200 text-gray-800 hover:bg-gray-300">
+              {cancelText}
+            </Button>
+          )}
         </div>
       </div>
     </div>
diff --git a/src/pages/profile_calendar.tsx b/src/pages/profile_calendar.tsx
index a179943..45a1350 100644
--- a/src/pages/profile_calendar.tsx
+++ b/src/pages/profile_calendar.tsx
@@ -538,11 +538,12 @@ const ProfileCalendar: FunctionComponent = () => {
             isOpen={showDeleteDialog}
             setIsOpen={setShowDeleteDialog}
             title="Удаление задачи"
-            content="Вы уверены, что хотите удалить эту задачу?"
             onConfirm={handleDeleteTask}
             confirmText="Удалить"
             cancelText="Отмена"
-          />
+          >
+            <p class="mb-6 text-sm sm:text-[1rem]">"Вы уверены, что хотите удалить эту задачу?"</p>
+          </Dialog>
           <Calendar
             value={currentDate}
             onChange={(e) => setCurrentDate(e ? e.value! : new Date())}
diff --git a/src/pages/profile_tasks.tsx b/src/pages/profile_tasks.tsx
index 52b7e8f..b9398a9 100644
--- a/src/pages/profile_tasks.tsx
+++ b/src/pages/profile_tasks.tsx
@@ -154,7 +154,6 @@ const ProfileTasks: FunctionComponent = () => {
     }
     if ((!editContent?.subject.id || !editContent.taskType.id) && (!tags.first || !tags.second)) {
       setError("subject", { message: "Выберите теги" });
-      setError("taskType", { message: "Выберите теги" });
       return;
     }
 
@@ -631,11 +630,12 @@ const ProfileTasks: FunctionComponent = () => {
         isOpen={showDeleteDialog}
         setIsOpen={setShowDeleteDialog}
         title="Удаление задачи"
-        content="Вы уверены, что хотите удалить эту задачу?"
         onConfirm={handleDeleteTask}
         confirmText="Удалить"
         cancelText="Отмена"
-      />
+      >
+        <p class="mb-6 text-sm sm:text-[1rem]">"Вы уверены, что хотите удалить эту задачу?"</p>
+      </Dialog>
       {!searchQuery && !filterTags.first && !filterTags.second && !filterTags.overdue ? (
         filteredTasks.length > 0 ? (
           <>
@@ -892,7 +892,7 @@ const ProfileTasks: FunctionComponent = () => {
                   <span>{subjectChoices.find((s) => s.id === filterTags.first)?.name || "Предмет"}</span>
                 </div>
                 {openFirstList && (
-                  <div class="absolute top-full right-0 z-50 w-64 rounded-lg bg-white p-2 shadow-lg md:top-0 md:right-full md:mr-2">
+                  <div class="absolute top-full right-0 z-50 max-h-[15rem] w-64 overflow-y-auto rounded-lg bg-white p-2 shadow-lg md:top-0 md:right-full md:mr-2">
                     {example_tags.first.map((tag) => {
                       return (
                         <div
@@ -936,7 +936,7 @@ const ProfileTasks: FunctionComponent = () => {
                   <span>{taskTypeChoices.find((s) => s.id === filterTags.second)?.name || "Задача"}</span>
                 </div>
                 {openSecondList && (
-                  <div class="absolute top-full right-0 z-50 w-64 rounded-lg bg-white p-2 shadow-lg md:top-0 md:right-full md:mr-2">
+                  <div class="absolute top-full right-0 z-50 max-h-[15rem] w-64 overflow-y-auto rounded-lg bg-white p-2 shadow-lg md:top-0 md:right-full md:mr-2">
                     {example_tags.second.map((tag) => (
                       <div
                         key={`taskType_${tag.id}`}