diff --git a/src/generic/loading-button/LoadingButton.test.jsx b/src/generic/loading-button/LoadingButton.test.jsx
index 2157bb46b6..5a50e82c20 100644
--- a/src/generic/loading-button/LoadingButton.test.jsx
+++ b/src/generic/loading-button/LoadingButton.test.jsx
@@ -48,7 +48,7 @@ describe('<LoadingButton />', () => {
   });
 
   it('renders the spinner correctly even with error', () => {
-    const longFunction = () => new Promise((resolve, reject) => {
+    const longFunction = () => new Promise((_resolve, reject) => {
       setTimeout(reject, 1000);
     });
     const { getByRole, getByText, getByTestId } = render(RootWrapper(longFunction));
diff --git a/src/generic/loading-button/index.jsx b/src/generic/loading-button/index.jsx
index 911951729d..55e88cad97 100644
--- a/src/generic/loading-button/index.jsx
+++ b/src/generic/loading-button/index.jsx
@@ -7,6 +7,14 @@ import {
   Stack,
 } from '@edx/paragon';
 
+/**
+  * A button that shows a loading spinner when clicked.
+  * @param {object} props
+  * @param {React.ReactNode=} props.children
+  * @param {boolean=} props.disabled
+  * @param {function=} props.onClick
+  * @returns {JSX.Element}
+  */
 const LoadingButton = ({
   onClick,
   children,
@@ -48,7 +56,6 @@ LoadingButton.propTypes = {
 
 LoadingButton.defaultProps = {
   ...Button.defaultProps,
-  disabled: null,
 };
 
 export default LoadingButton;
diff --git a/src/taxonomy/import-tags/ImportTagsWizard.jsx b/src/taxonomy/import-tags/ImportTagsWizard.jsx
index ccd313e5bc..0f6308c6eb 100644
--- a/src/taxonomy/import-tags/ImportTagsWizard.jsx
+++ b/src/taxonomy/import-tags/ImportTagsWizard.jsx
@@ -1,3 +1,4 @@
+// @ts-check
 import React, { useState } from 'react';
 import { useIntl } from '@edx/frontend-platform/i18n';
 import {
@@ -209,23 +210,25 @@ const ImportTagsWizard = ({
 
   const [file, setFile] = useState(/** @type {null|File} */ (null));
 
-  const [importPlan, setImportPlan] = useState(null);
+  const [importPlan, setImportPlan] = useState(/** @type {null|string[]} */ (null));
   const [importPlanError, setImportPlanError] = useState(null);
 
   const importTagsMutation = useImportTags();
 
   const generatePlan = async () => {
     try {
-      const plan = await planImportTags(taxonomy.id, file);
-      let planArrayTemp = plan.split('\n');
-      planArrayTemp = planArrayTemp.slice(2); // Removes the first two lines
-      planArrayTemp = planArrayTemp.slice(0, -1); // Removes the last line
-      const planArray = planArrayTemp
-        .filter((line) => !(line.includes('No changes'))) // Removes the "No changes" lines
-        .map((line) => line.split(':')[1].trim()); // Get only the action message
-      setImportPlan(planArray);
-      setImportPlanError(null);
-      setCurrentStep('plan');
+      if (file) {
+        const plan = await planImportTags(taxonomy.id, file);
+        let planArrayTemp = plan.split('\n');
+        planArrayTemp = planArrayTemp.slice(2); // Removes the first two lines
+        planArrayTemp = planArrayTemp.slice(0, -1); // Removes the last line
+        const planArray = planArrayTemp
+          .filter((line) => !(line.includes('No changes'))) // Removes the "No changes" lines
+          .map((line) => line.split(':')[1].trim()); // Get only the action message
+        setImportPlan(planArray);
+        setImportPlanError(null);
+        setCurrentStep('plan');
+      }
     } catch (/** @type {any} */ error) {
       setImportPlanError(error.message);
     }
@@ -233,11 +236,13 @@ const ImportTagsWizard = ({
 
   const confirmImportTags = async () => {
     try {
-      await importTagsMutation.mutateAsync({
-        taxonomyId: taxonomy.id,
-        file,
-      });
-      close();
+      if (file) {
+        await importTagsMutation.mutateAsync({
+          taxonomyId: taxonomy.id,
+          file,
+        });
+        close();
+      }
       // ToDo: show success toast
     } catch (error) {
       // ToDo: show error message
diff --git a/src/taxonomy/import-tags/data/api.js b/src/taxonomy/import-tags/data/api.js
index 103424a289..f4a063e23f 100644
--- a/src/taxonomy/import-tags/data/api.js
+++ b/src/taxonomy/import-tags/data/api.js
@@ -33,9 +33,10 @@ export const getTagsPlanImportApiUrl = (taxonomyId) => new URL(
  * @param {string} taxonomyName
  * @param {string} taxonomyDescription
  * @param {File} file
- * @returns {Promise<Object>}
+ * @returns {Promise<import(../../taxonomy-detail/data/types).TaxonomyData}
  */
 export async function importNewTaxonomy(taxonomyName, taxonomyDescription, file) {
+  // ToDo: transform this to use react-query like useImportTags
   const formData = new FormData();
   formData.append('taxonomy_name', taxonomyName);
   formData.append('taxonomy_description', taxonomyDescription);
@@ -69,18 +70,18 @@ export const useImportTags = () => {
       const formData = new FormData();
       formData.append('file', file);
 
-      await getAuthenticatedHttpClient().put(
+      const { data } = await getAuthenticatedHttpClient().put(
         getTagsImportApiUrl(taxonomyId),
         formData,
       );
+
+      return camelCaseObject(data);
     },
-    onSuccess: (_data, variables) => {
+    onSuccess: (data, variables) => {
       queryClient.invalidateQueries({
         queryKey: ['tagList', variables.taxonomyId],
       });
-      queryClient.invalidateQueries({
-        queryKey: ['taxonomyDetail', variables.taxonomyId],
-      });
+      queryClient.setQueryData(['taxonomyDetail', variables.taxonomyId], data);
     },
   });
 };
@@ -89,7 +90,7 @@ export const useImportTags = () => {
  * Plan import tags to an existing taxonomy, overwriting existing tags
  * @param {number} taxonomyId
  * @param {File} file
- * @returns {Promise<Object>}
+ * @returns {Promise<string>}
  */
 export async function planImportTags(taxonomyId, file) {
   const formData = new FormData();
@@ -101,13 +102,8 @@ export async function planImportTags(taxonomyId, file) {
       formData,
     );
 
-    return camelCaseObject(data.plan);
-  } catch (err) {
-    // @ts-ignore
-    if (err.response?.data?.error) {
-      // @ts-ignore
-      throw new Error(err.response.data.error);
-    }
-    throw err;
+    return data.plan;
+  } catch (/** @type {any} */ err) {
+    throw new Error(err.response?.data?.error || err.message);
   }
 }
diff --git a/src/taxonomy/import-tags/data/api.test.jsx b/src/taxonomy/import-tags/data/api.test.jsx
index 2170d3b9ec..6461e6808b 100644
--- a/src/taxonomy/import-tags/data/api.test.jsx
+++ b/src/taxonomy/import-tags/data/api.test.jsx
@@ -58,8 +58,10 @@ describe('import taxonomy api calls', () => {
   });
 
   it('should call import tags', async () => {
-    axiosMock.onPut(getTagsImportApiUrl(1)).reply(200);
+    const taxonomy = { id: 1, name: 'taxonomy name' };
+    axiosMock.onPut(getTagsImportApiUrl(1)).reply(200, taxonomy);
     const mockInvalidateQueries = jest.spyOn(queryClient, 'invalidateQueries');
+    const mockSetQueryData = jest.spyOn(queryClient, 'setQueryData');
 
     const { result } = renderHook(() => useImportTags(), { wrapper });
 
@@ -68,9 +70,7 @@ describe('import taxonomy api calls', () => {
     expect(mockInvalidateQueries).toHaveBeenCalledWith({
       queryKey: ['tagList', 1],
     });
-    expect(mockInvalidateQueries).toHaveBeenCalledWith({
-      queryKey: ['taxonomyDetail', 1],
-    });
+    expect(mockSetQueryData).toHaveBeenCalledWith(['taxonomyDetail', 1], taxonomy);
   });
 
   it('should call plan import tags', async () => {
@@ -81,10 +81,8 @@ describe('import taxonomy api calls', () => {
 
   it('should handle errors in plan import tags', async () => {
     axiosMock.onPut(getTagsPlanImportApiUrl(1)).reply(400, { error: 'test error' });
-    const mockInvalidateQueries = jest.spyOn(queryClient, 'invalidateQueries');
 
     expect(planImportTags(1)).rejects.toEqual(Error('test error'));
     expect(axiosMock.history.put[0].url).toEqual(getTagsPlanImportApiUrl(1));
-    expect(mockInvalidateQueries).not.toHaveBeenCalled();
   });
 });