diff --git a/api/src/repositories/taxonomy-repository.ts b/api/src/repositories/taxonomy-repository.ts
index 617d2438..c055ffe9 100644
--- a/api/src/repositories/taxonomy-repository.ts
+++ b/api/src/repositories/taxonomy-repository.ts
@@ -3,6 +3,7 @@ import { z } from 'zod';
 import { getKnex } from '../database/db';
 import { getLogger } from '../utils/logger';
 import { BaseRepository } from './base-repository';
+import { ApiExecuteSQLError } from '../errors/api-error';
 
 const defaultLog = getLogger('repositories/taxonomy-repository');
 
@@ -64,7 +65,7 @@ export class TaxonomyRepository extends BaseRepository {
     commonName: string | null,
     itisData: Record<string, unknown>,
     itisUpdateDate: string
-  ): Promise<void> {
+  ): Promise<TaxonRecord> {
     defaultLog.debug({ label: 'addItisTaxonRecord', itisTsn });
 
     const sqlStatement = SQL`
@@ -98,7 +99,16 @@ export class TaxonomyRepository extends BaseRepository {
         taxon.record_end_date IS null;
     `;
 
-    await this.connection.sql(sqlStatement, TaxonRecord);
+    const response = await this.connection.sql(sqlStatement, TaxonRecord);
+
+    if (response.rowCount !== 1) {
+      throw new ApiExecuteSQLError('Failed to insert new taxon record', [
+        'TaxonomyRepository->addItisTaxonRecord',
+        'rowCount was null or undefined, expected rowCount = 1'
+      ]);
+    }
+
+    return response.rows[0];
   }
 
   /**
diff --git a/api/src/services/taxonomy-service.ts b/api/src/services/taxonomy-service.ts
index f6eb6463..5b24e759 100644
--- a/api/src/services/taxonomy-service.ts
+++ b/api/src/services/taxonomy-service.ts
@@ -40,17 +40,19 @@ export class TaxonomyService {
 
     const missingTsnIds = tsnIds.filter((tsnId) => !existingTsnIds.includes(tsnId));
 
+    let patchedTaxonRecords: TaxonRecord[] = [];
+
     if (missingTsnIds.length) {
       // If the local database does not contain a record for all of the requested ids, search ITIS for the missing
       // taxon records, patching the missing records in the local database in the process
       const itisService = new ItisService();
       const itisResponse = await itisService.searchItisByTSN(missingTsnIds);
 
-      await Promise.all(itisResponse.map(async (item) => this.addItisTaxonRecord(item)));
+      patchedTaxonRecords = await Promise.all(itisResponse.map(async (item) => this.addItisTaxonRecord(item)));
     }
 
     // Missing ids patched, return taxon records for all requested ids
-    return this._sanitizeTaxonRecordsData(await this.taxonRepository.getTaxonByTsnIds(tsnIds));
+    return this._sanitizeTaxonRecordsData(existingTaxonRecords.concat(patchedTaxonRecords));
   }
 
   _sanitizeTaxonRecordsData(taxonRecords: TaxonRecord[]): TaxonSearchResult[] {
@@ -70,7 +72,7 @@ export class TaxonomyService {
    * @return {*}  {Promise<TaxonRecord>}
    * @memberof TaxonomyService
    */
-  async addItisTaxonRecord(itisSolrResponse: ItisSolrSearchResponse): Promise<void> {
+  async addItisTaxonRecord(itisSolrResponse: ItisSolrSearchResponse): Promise<TaxonRecord> {
     let commonName = null;
     if (itisSolrResponse.commonNames) {
       commonName = itisSolrResponse.commonNames[0].split('$')[1];