diff --git a/src/app/components/inputnumber/inputnumber.ts b/src/app/components/inputnumber/inputnumber.ts
index 015b0c44ed4..f7655748536 100644
--- a/src/app/components/inputnumber/inputnumber.ts
+++ b/src/app/components/inputnumber/inputnumber.ts
@@ -917,6 +917,12 @@ export class InputNumber implements OnInit, AfterContentInit, OnChanges, Control
 
         const newValue = this.parseValue(this.input.nativeElement.value + char);
         const newValueStr = newValue != null ? newValue.toString() : '';
+
+        if (this.maxlength && this.getSelectedText()?.length == this.maxlength) {
+            this.insert(event, char, { isDecimalSign, isMinusSign });
+            return;
+        }
+
         if (this.maxlength && newValueStr.length > this.maxlength) {
             return;
         }
@@ -926,6 +932,15 @@ export class InputNumber implements OnInit, AfterContentInit, OnChanges, Control
         }
     }
 
+    private getSelectedText() {
+        return (
+            window
+                ?.getSelection()
+                ?.toString()
+                .replaceAll(/[^0-9']/g, '') || ''
+        );
+    }
+
     onPaste(event: ClipboardEvent) {
         if (!this.disabled && !this.readonly) {
             event.preventDefault();