diff --git a/src/lrt/config.ts b/src/lrt/config.ts
index b983d81..2eb27ba 100644
--- a/src/lrt/config.ts
+++ b/src/lrt/config.ts
@@ -10,6 +10,8 @@ const primeLaunchDate = new Date('2024-02-05 12:00 PM PST')
 
 const eth = (val: bigint) => val * 1_000000000_000000000n
 
+export const xpEndTimestamp = 1724785200000 // 2024-08-27 12:00 PM PST
+
 export interface PointCondition {
   name: string
   // The multiplier the point condition will apply.
diff --git a/src/lrt/logic/points.ts b/src/lrt/logic/points.ts
index 43672d6..431c415 100644
--- a/src/lrt/logic/points.ts
+++ b/src/lrt/logic/points.ts
@@ -1,5 +1,6 @@
 import { LRTPointRecipientHistory, LRTSummary } from '../../model'
 import { Block, Context } from '../../processor'
+import { xpEndTimestamp } from '../config'
 import { getLastSummary, state } from '../state'
 import { campaigns } from './campaigns'
 import { updateEigenPoints } from './eigen-points'
@@ -61,6 +62,17 @@ const createSummary = async (ctx: Context, block: Block) => {
     points: totalPoints,
     elPoints: lastSummary?.elPoints ?? 0n,
   })
+  if (
+    lastSummary &&
+    block.header.timestamp >= xpEndTimestamp &&
+    lastSummary?.timestamp.valueOf() >= xpEndTimestamp &&
+    summary.points > lastSummary?.points
+  ) {
+    throw new Error(
+      `Points should no longer be accruing after ${xpEndTimestamp}`,
+    )
+  }
+
   state.summaries.set(summary.id, summary)
 
   return { summary, recipients }
diff --git a/src/lrt/logic/prime-points.ts b/src/lrt/logic/prime-points.ts
index 25d50c8..65eb38c 100644
--- a/src/lrt/logic/prime-points.ts
+++ b/src/lrt/logic/prime-points.ts
@@ -8,6 +8,7 @@ import {
   pointConditions,
   pointInterval,
   referralConditions,
+  xpEndTimestamp,
 } from '../config'
 import { state } from '../state'
 import { encodeAddress } from '../utils/encoding'
@@ -39,6 +40,9 @@ export const updateRecipientsPoints = async (
     }
   >(), // Who have we already calculated in this self-referencing function?
 ) => {
+  if (timestamp >= xpEndTimestamp) {
+    return { totalReferralPoints: [], count: memo.size }
+  }
   const totalReferralPoints: ReferralPointData[] = []
   for (const recipient of recipients) {
     if (memo.has(recipient.id)) {
diff --git a/src/lrt/state.ts b/src/lrt/state.ts
index cdd31ef..6a3f4e0 100644
--- a/src/lrt/state.ts
+++ b/src/lrt/state.ts
@@ -141,7 +141,7 @@ export const getLastSummary = async (ctxOrEm: Context | EntityManager) => {
   return await find(ctxOrEm, LRTSummary, {
     take: 1,
     order: { id: 'desc' },
-  }).then((r) => r[0])
+  }).then((r) => r[0] as LRTSummary | undefined)
 }
 
 export const getSummary = async (
@@ -156,9 +156,9 @@ export const getSummary = async (
       id,
       timestamp: new Date(block.header.timestamp),
       blockNumber: block.header.height,
-      balance: lastSummary.balance ?? 0n,
-      points: lastSummary.points ?? 0n,
-      elPoints: lastSummary.elPoints ?? 0n,
+      balance: lastSummary?.balance ?? 0n,
+      points: lastSummary?.points ?? 0n,
+      elPoints: lastSummary?.elPoints ?? 0n,
     })
   }
   return summary