diff --git a/aio/scripts/_payload-limits.json b/aio/scripts/_payload-limits.json
index a71bad77f8..a6e33d1f10 100755
--- a/aio/scripts/_payload-limits.json
+++ b/aio/scripts/_payload-limits.json
@@ -21,7 +21,7 @@
     "master": {
       "uncompressed": {
         "runtime-es2015": 3097,
-        "main-es2015": 436779,
+        "main-es2015": 439352,
         "polyfills-es2015": 52503
       }
     }
diff --git a/integration/_payload-limits.json b/integration/_payload-limits.json
index 5673a9c161..c2f9b2f006 100644
--- a/integration/_payload-limits.json
+++ b/integration/_payload-limits.json
@@ -3,7 +3,7 @@
     "master": {
       "uncompressed": {
         "runtime-es2015": 1485,
-        "main-es2015": 141575,
+        "main-es2015": 142186,
         "polyfills-es2015": 36808
       }
     }
@@ -21,7 +21,7 @@
     "master": {
       "uncompressed": {
         "runtime-es2015": 1485,
-        "main-es2015": 147719,
+        "main-es2015": 148320,
         "polyfills-es2015": 36808
       }
     }
@@ -49,7 +49,7 @@
     "master": {
       "uncompressed": {
         "runtime-es2015": 2289,
-        "main-es2015": 227998,
+        "main-es2015": 227232,
         "polyfills-es2015": 36808,
         "5-es2015": 779
       }
@@ -60,7 +60,7 @@
       "uncompressed": {
         "bundle": "TODO(i): temporarily increase the payload size limit from 105779 - this is due to a closure issue related to ESM reexports that still needs to be investigated",
         "bundle": "TODO(i): we should define ngDevMode to false in Closure, but --define only works in the global scope.",
-        "bundle": 177447
+        "bundle": 176433
       }
     }
   }
diff --git a/scripts/ci/payload-size.js b/scripts/ci/payload-size.js
index 36193d0707..446519ff69 100644
--- a/scripts/ci/payload-size.js
+++ b/scripts/ci/payload-size.js
@@ -13,6 +13,8 @@ const limitSizes = allLimitSizes[project][branch] || allLimitSizes[project]['mas
 
 // Check current sizes against limits.
 let failed = false;
+const successMessages = [];
+const failureMessages = [];
 for (const compressionType in limitSizes) {
   if (typeof limitSizes[compressionType] === 'object') {
     const limitPerFile = limitSizes[compressionType];
@@ -26,26 +28,37 @@ for (const compressionType in limitSizes) {
         // An expected compression type/file combination is missing. Maybe the file was renamed or
         // removed. Report it as an error, so the user updates the corresponding limit file.
         console.log(
-            `Commit ${commit} ${compressionType} ${filename} meassurement is missing. ` +
+            `ERROR: Commit ${commit} ${compressionType} ${filename} measurement is missing. ` +
             'Maybe the file was renamed or removed.');
-      } else if (Math.abs(actualSize - expectedSize) > expectedSize / 100) {
-        failed = true;
-        // We must also catch when the size is significantly lower than the payload limit, so
-        // we are forced to update the expected payload number when the payload size reduces.
-        // Otherwise, we won't be able to catch future regressions that happen to be below
-        // the artificially inflated limit.
-        const operator = actualSize > expectedSize ? 'exceeded' : 'fell below';
-        console.log(
-            `Commit ${commit} ${compressionType} ${filename} ${operator} expected size by >1% ` +
+      } else {
+        const absoluteSizeDiff = Math.abs(actualSize - expectedSize);
+        // If size diff is larger than 1% or 500 bytes...
+        if (absoluteSizeDiff > 500 || absoluteSizeDiff > expectedSize / 100) {
+          failed = true;
+          // We must also catch when the size is significantly lower than the payload limit, so
+          // we are forced to update the expected payload number when the payload size reduces.
+          // Otherwise, we won't be able to catch future regressions that happen to be below
+          // the artificially inflated limit.
+          const operator = actualSize > expectedSize ? 'exceeded' : 'fell below';
+
+          failureMessages.push(
+            `FAIL: Commit ${commit} ${compressionType} ${filename} ${operator} expected size by 500 bytes or >1% ` +
             `(expected: ${expectedSize}, actual: ${actualSize}).`);
+        } else {
+          successMessages.push(`SUCCESS: Commit ${commit} ${compressionType} ${filename} did NOT cross size threshold of 500 bytes or >1% ` +
+            `(expected: ${expectedSize}, actual: ${actualSize}).`);
+        }
       }
     }
   }
 }
 
+// Group failure messages separately from success messages so they are easier to find.
+successMessages.concat(failureMessages).forEach(message => console.log(message));
+
 if (failed) {
   console.log(`If this is a desired change, please update the size limits in file '${limitFile}'.`);
   process.exit(1);
 } else {
-  console.log('Payload size <1% change check passed.');
+  console.log(`Payload size check passed. All diffs are less than 1% or 500 bytes.`);
 }