diff --git a/apps/scandic-web/components/Blocks/DynamicContent/SAS/LinkedAccounts/index.tsx b/apps/scandic-web/components/Blocks/DynamicContent/SAS/LinkedAccounts/index.tsx
index 89b94426b..77f0781af 100644
--- a/apps/scandic-web/components/Blocks/DynamicContent/SAS/LinkedAccounts/index.tsx
+++ b/apps/scandic-web/components/Blocks/DynamicContent/SAS/LinkedAccounts/index.tsx
@@ -89,7 +89,8 @@ async function MatchedAccountInfo() {
       eurobonusMembership.boostedTier || eurobonusMembership.tier
     ]
   const sasMembershipNumber = eurobonusMembership.membershipNumber
-  const sasTierExpirationDate = eurobonusMembership.tierExpires
+  const sasTierExpirationDate =
+    eurobonusMembership.boostedTierExpires || eurobonusMembership.tierExpires
 
   const scandicLevelName = TIER_TO_FRIEND_MAP[friendsMembership.membershipLevel]
   const scandicExpirationDate = friendsMembership.tierExpirationDate
@@ -302,6 +303,13 @@ async function TierMatchExpiration({
 
   const intl = await getIntl()
 
+  const displayedExpirationDate =
+    matchState === "boostedBySAS" ? scandicExpirationDate : sasExpirationDate
+
+  if (!displayedExpirationDate) {
+    return null
+  }
+
   return (
     <div className={styles.stack}>
       <Label>
@@ -310,11 +318,7 @@ async function TierMatchExpiration({
         })}
       </Label>
       <Typography variant="Body/Paragraph/mdBold">
-        <p>
-          {matchState === "boostedBySAS"
-            ? scandicExpirationDate
-            : sasExpirationDate}
-        </p>
+        <p>{displayedExpirationDate}</p>
       </Typography>
     </div>
   )
diff --git a/apps/scandic-web/server/routers/user/output.ts b/apps/scandic-web/server/routers/user/output.ts
index 7046dc97f..03bc44d9f 100644
--- a/apps/scandic-web/server/routers/user/output.ts
+++ b/apps/scandic-web/server/routers/user/output.ts
@@ -31,8 +31,17 @@ export const sasMembershipSchema = z
     spendablePoints: z.number().nullish(),
     boostedByScandic: z.boolean().nullish(),
     boostedTier: sasEurobonusTier.nullish(),
+    boostedTierExpires: z.string().nullish().default(null),
   })
   .merge(commonMembershipSchema)
+  .transform((response) => {
+    return {
+      ...response,
+      tierExpires:
+        // SAS API returns 1900-01-01 for non-expiring tiers
+        response.tierExpires === "1900-01-01" ? null : response.tierExpires,
+    }
+  })
 
 export const friendsMembershipSchema = z
   .object({