diff --git a/packages/form-core/src/FormApi.ts b/packages/form-core/src/FormApi.ts
index 2317fb2b9..66ec37b14 100644
--- a/packages/form-core/src/FormApi.ts
+++ b/packages/form-core/src/FormApi.ts
@@ -662,16 +662,18 @@ export type DerivedFormState<
    * The error array for the form itself.
    */
   errors: Array<
-    | UnwrapFormValidateOrFn<TOnMount>
-    | UnwrapFormValidateOrFn<TOnChange>
-    | UnwrapFormAsyncValidateOrFn<TOnChangeAsync>
-    | UnwrapFormValidateOrFn<TOnBlur>
-    | UnwrapFormAsyncValidateOrFn<TOnBlurAsync>
-    | UnwrapFormValidateOrFn<TOnSubmit>
-    | UnwrapFormAsyncValidateOrFn<TOnSubmitAsync>
-    | UnwrapFormValidateOrFn<TOnDynamic>
-    | UnwrapFormAsyncValidateOrFn<TOnDynamicAsync>
-    | UnwrapFormAsyncValidateOrFn<TOnServer>
+    NonNullable<
+      | UnwrapFormValidateOrFn<TOnMount>
+      | UnwrapFormValidateOrFn<TOnChange>
+      | UnwrapFormAsyncValidateOrFn<TOnChangeAsync>
+      | UnwrapFormValidateOrFn<TOnBlur>
+      | UnwrapFormAsyncValidateOrFn<TOnBlurAsync>
+      | UnwrapFormValidateOrFn<TOnSubmit>
+      | UnwrapFormAsyncValidateOrFn<TOnSubmitAsync>
+      | UnwrapFormValidateOrFn<TOnDynamic>
+      | UnwrapFormAsyncValidateOrFn<TOnDynamicAsync>
+      | UnwrapFormAsyncValidateOrFn<TOnServer>
+    >
   >
   /**
    * A boolean indicating if any of the form fields are currently validating.
@@ -1253,14 +1255,16 @@ export class FormApi<
       ) {
         errors = Object.values(currBaseStore.errorMap).reduce<
           Array<
-            | UnwrapFormValidateOrFn<TOnMount>
-            | UnwrapFormValidateOrFn<TOnChange>
-            | UnwrapFormAsyncValidateOrFn<TOnChangeAsync>
-            | UnwrapFormValidateOrFn<TOnBlur>
-            | UnwrapFormAsyncValidateOrFn<TOnBlurAsync>
-            | UnwrapFormValidateOrFn<TOnSubmit>
-            | UnwrapFormAsyncValidateOrFn<TOnSubmitAsync>
-            | UnwrapFormAsyncValidateOrFn<TOnServer>
+            NonNullable<
+              | UnwrapFormValidateOrFn<TOnMount>
+              | UnwrapFormValidateOrFn<TOnChange>
+              | UnwrapFormAsyncValidateOrFn<TOnChangeAsync>
+              | UnwrapFormValidateOrFn<TOnBlur>
+              | UnwrapFormAsyncValidateOrFn<TOnBlurAsync>
+              | UnwrapFormValidateOrFn<TOnSubmit>
+              | UnwrapFormAsyncValidateOrFn<TOnSubmitAsync>
+              | UnwrapFormAsyncValidateOrFn<TOnServer>
+            >
           >
         >((prev, curr) => {
           if (curr === undefined) return prev
@@ -2662,16 +2666,18 @@ export class FormApi<
   getAllErrors = (): {
     form: {
       errors: Array<
-        | UnwrapFormValidateOrFn<TOnMount>
-        | UnwrapFormValidateOrFn<TOnChange>
-        | UnwrapFormAsyncValidateOrFn<TOnChangeAsync>
-        | UnwrapFormValidateOrFn<TOnBlur>
-        | UnwrapFormAsyncValidateOrFn<TOnBlurAsync>
-        | UnwrapFormValidateOrFn<TOnSubmit>
-        | UnwrapFormAsyncValidateOrFn<TOnSubmitAsync>
-        | UnwrapFormValidateOrFn<TOnDynamic>
-        | UnwrapFormAsyncValidateOrFn<TOnDynamicAsync>
-        | UnwrapFormAsyncValidateOrFn<TOnServer>
+        NonNullable<
+          | UnwrapFormValidateOrFn<TOnMount>
+          | UnwrapFormValidateOrFn<TOnChange>
+          | UnwrapFormAsyncValidateOrFn<TOnChangeAsync>
+          | UnwrapFormValidateOrFn<TOnBlur>
+          | UnwrapFormAsyncValidateOrFn<TOnBlurAsync>
+          | UnwrapFormValidateOrFn<TOnSubmit>
+          | UnwrapFormAsyncValidateOrFn<TOnSubmitAsync>
+          | UnwrapFormValidateOrFn<TOnDynamic>
+          | UnwrapFormAsyncValidateOrFn<TOnDynamicAsync>
+          | UnwrapFormAsyncValidateOrFn<TOnServer>
+        >
       >
       errorMap: ValidationErrorMap<
         UnwrapFormValidateOrFn<TOnMount>,
diff --git a/packages/form-core/tests/FieldApi.test-d.ts b/packages/form-core/tests/FieldApi.test-d.ts
index 838b5c4e1..6c98ed538 100644
--- a/packages/form-core/tests/FieldApi.test-d.ts
+++ b/packages/form-core/tests/FieldApi.test-d.ts
@@ -238,7 +238,7 @@ it('should have the correct types returned from form validators in array', () =>
     },
   } as const)
 
-  expectTypeOf(form.state.errors).toEqualTypeOf<Array<'123' | undefined>>()
+  expectTypeOf(form.state.errors).toEqualTypeOf<Array<'123'>>()
 })
 
 it('should handle "fields" return types added to the field\'s errorMap itself', () => {
diff --git a/packages/form-core/tests/FormApi.test-d.ts b/packages/form-core/tests/FormApi.test-d.ts
index 1d2554a6e..ebf6813ad 100644
--- a/packages/form-core/tests/FormApi.test-d.ts
+++ b/packages/form-core/tests/FormApi.test-d.ts
@@ -48,7 +48,6 @@ it('should return all errors matching the right type from getAllErrors', () => {
       | 'onSubmitAsync'
       | { onBlur: true; onBlurNumber: number }
       | 'onBlurAsync'
-      | undefined
     )[]
   >()
 
@@ -365,14 +364,7 @@ it('should extract the form error type from a global form error', () => {
   >()
 
   expectTypeOf(form.state.errors).toEqualTypeOf<
-    (
-      | 'onMount'
-      | 'onChange'
-      | 'onChangeAsync'
-      | 'onBlur'
-      | 'onBlurAsync'
-      | undefined
-    )[]
+    ('onMount' | 'onChange' | 'onChangeAsync' | 'onBlur' | 'onBlurAsync')[]
   >
 })
 
diff --git a/packages/form-core/tests/formOptions.test-d.ts b/packages/form-core/tests/formOptions.test-d.ts
index eb7b39a45..fd8089549 100644
--- a/packages/form-core/tests/formOptions.test-d.ts
+++ b/packages/form-core/tests/formOptions.test-d.ts
@@ -286,9 +286,7 @@ describe('formOptions', () => {
 
     const form = new FormApi(formOpts)
 
-    expectTypeOf(form.state.errors).toEqualTypeOf<
-      ('I just need an error' | undefined)[]
-    >()
+    expectTypeOf(form.state.errors).toEqualTypeOf<'I just need an error'[]>()
 
     const form2 = new FormApi({
       ...formOpts,
@@ -302,9 +300,7 @@ describe('formOptions', () => {
       },
     })
 
-    expectTypeOf(form2.state.errors).toEqualTypeOf<
-      (undefined | 'Too short!')[]
-    >()
+    expectTypeOf(form2.state.errors).toEqualTypeOf<'Too short!'[]>()
 
     const form3 = new FormApi({
       ...formOpts,
@@ -320,7 +316,7 @@ describe('formOptions', () => {
     })
 
     expectTypeOf(form3.state.errors).toEqualTypeOf<
-      (undefined | 'Too short!' | 'I just need an error')[]
+      ('Too short!' | 'I just need an error')[]
     >()
   })
 })