diff --git a/src/components/_common/headers/sharedHeaderUtils.ts b/src/components/_common/headers/sharedHeaderUtils.ts
index 27e60c98a..d503e510b 100644
--- a/src/components/_common/headers/sharedHeaderUtils.ts
+++ b/src/components/_common/headers/sharedHeaderUtils.ts
@@ -24,7 +24,7 @@ export const getContentTagline = (content: GetContentTaglineProps, currentLangua
         return (selectedAudience && situationTaglines(selectedAudience)) ?? '';
     }
 
-    if (taxonomy.length > 0 || customCategory) {
+    if ((taxonomy && taxonomy.length > 0) || customCategory) {
         const taxonomyStrings = getTranslatedTaxonomies(taxonomy, language);
 
         if (customCategory && taxonomyStrings.length === 0) {
diff --git a/src/components/_common/overview-filters/taxonomy-filter/OverviewTaxonomyFilter.tsx b/src/components/_common/overview-filters/taxonomy-filter/OverviewTaxonomyFilter.tsx
index 276132d91..31405b8c2 100644
--- a/src/components/_common/overview-filters/taxonomy-filter/OverviewTaxonomyFilter.tsx
+++ b/src/components/_common/overview-filters/taxonomy-filter/OverviewTaxonomyFilter.tsx
@@ -54,7 +54,7 @@ export const OverviewTaxonomyFilter = ({ items }: Props) => {
     };
 
     const taxonomiesPresent = orderedTaxonomies.filter((taxonomy) =>
-        items.some((item) => item.taxonomy.some((itemTaxonomy) => itemTaxonomy === taxonomy))
+        items.some((item) => item.taxonomy?.some((itemTaxonomy) => itemTaxonomy === taxonomy))
     );
 
     const listHasGuidePage = items.some((product) => product.type === 'no.nav.navno:guide-page');
diff --git a/src/components/pages/office-page/office-details/officeInformation/OfficeInformation.tsx b/src/components/pages/office-page/office-details/officeInformation/OfficeInformation.tsx
index 2397cee1a..dbf3ebc97 100644
--- a/src/components/pages/office-page/office-details/officeInformation/OfficeInformation.tsx
+++ b/src/components/pages/office-page/office-details/officeInformation/OfficeInformation.tsx
@@ -54,7 +54,7 @@ export const OfficeInformation = ({ officeData }: OfficeInformationProps) => {
                         <Heading level="3" size="small" spacing>
                             {getOfficeTranslations('location')}
                         </Heading>
-                        {beliggenhet.adresseTilleggsnavn && (
+                        {beliggenhet?.adresseTilleggsnavn && (
                             <BodyShort>{beliggenhet.adresseTilleggsnavn}</BodyShort>
                         )}
                         <BodyShort>{visitingAddress}</BodyShort>
diff --git a/src/store/hooks/useOverviewFilters.ts b/src/store/hooks/useOverviewFilters.ts
index 1bbe5925d..5dfea71c6 100644
--- a/src/store/hooks/useOverviewFilters.ts
+++ b/src/store/hooks/useOverviewFilters.ts
@@ -16,7 +16,7 @@ import type Fuse from 'fuse.js';
 
 export type OverviewFilterableItem = {
     area: Area[];
-    taxonomy: ProductTaxonomy[];
+    taxonomy?: ProductTaxonomy[];
     type?: ContentType;
 };
 
@@ -43,7 +43,7 @@ const _getFilteredList = async <ItemType extends OverviewFilterableItem>({
 
     const isTaxonomyMatching = (item: ItemType) =>
         taxonomyFilter === ProductTaxonomy.ALL ||
-        item.taxonomy.includes(taxonomyFilter) ||
+        item.taxonomy?.includes(taxonomyFilter) ||
         (taxonomyFilter === ProductTaxonomy.OTHER && item.type === 'no.nav.navno:guide-page');
 
     const itemsMatchingToggleFilters = filterableItems.filter(