diff --git a/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspAATask.kt b/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspAATask.kt
index 2508eff853..bf97755051 100644
--- a/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspAATask.kt
+++ b/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspAATask.kt
@@ -166,16 +166,21 @@ abstract class KspAATask @Inject constructor(
                     cfg.moduleName.value(kotlinCompilation.defaultSourceSet.name)
                     val kotlinOutputDir = KspGradleSubplugin.getKspKotlinOutputDir(project, sourceSetName, target)
                     val javaOutputDir = KspGradleSubplugin.getKspJavaOutputDir(project, sourceSetName, target)
+                    val filteredTasks =
+                        kspExtension.excludedSources.buildDependencies.getDependencies(null).map { it.name }
                     kotlinCompilation.allKotlinSourceSetsObservable.forAll { sourceSet ->
                         val filtered = sourceSet.kotlin.srcDirs.filter {
-                            !kotlinOutputDir.isParentOf(it) && !javaOutputDir.isParentOf(it)
+                            !kotlinOutputDir.isParentOf(it) && !javaOutputDir.isParentOf(it) &&
+                                it !in kspExtension.excludedSources
                         }.map {
                             // @SkipWhenEmpty doesn't work well with File.
                             project.objects.fileTree().from(it)
                         }
                         cfg.sourceRoots.from(filtered)
                         cfg.javaSourceRoots.from(filtered)
-                        kspAATask.dependsOn(sourceSet.kotlin.nonSelfDeps(kspTaskName))
+                        kspAATask.dependsOn(
+                            sourceSet.kotlin.nonSelfDeps(kspTaskName).filter { it.name !in filteredTasks }
+                        )
                     }
                     if (kotlinCompilation is KotlinCommonCompilation) {
                         cfg.commonSourceRoots.from(kotlinCompilation.defaultSourceSet.kotlin)
diff --git a/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspExtension.kt b/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspExtension.kt
index 9beac05d36..495afb31ce 100644
--- a/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspExtension.kt
+++ b/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspExtension.kt
@@ -18,13 +18,18 @@
 package com.google.devtools.ksp.gradle
 
 import org.gradle.api.GradleException
+import org.gradle.api.file.ConfigurableFileCollection
 import org.gradle.process.CommandLineArgumentProvider
 
-open class KspExtension {
+abstract class KspExtension {
     internal val apOptions = mutableMapOf<String, String>()
     internal val commandLineArgumentProviders = mutableListOf<CommandLineArgumentProvider>()
     internal val excludedProcessors = mutableSetOf<String>()
 
+    // Specify sources that should be excluded from KSP.
+    // If you have a task that generates sources, you can call `ksp.excludedSources.from(task)`.
+    abstract val excludedSources: ConfigurableFileCollection
+
     open val arguments: Map<String, String> get() = apOptions.toMap()
 
     open fun arg(k: String, v: String) {
diff --git a/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspSubplugin.kt b/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspSubplugin.kt
index 4a88fe1b16..1fd16c76e3 100644
--- a/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspSubplugin.kt
+++ b/gradle-plugin/src/main/kotlin/com/google/devtools/ksp/gradle/KspSubplugin.kt
@@ -318,13 +318,16 @@ class KspGradleSubplugin @Inject internal constructor(private val registry: Tool
                     )
                 }
             } else {
+                val filteredTasks =
+                    kspExtension.excludedSources.buildDependencies.getDependencies(null).map { it.name }
                 kotlinCompilation.allKotlinSourceSetsObservable.forAll { sourceSet ->
                     kspTask.setSource(
                         sourceSet.kotlin.srcDirs.filter {
-                            !kotlinOutputDir.isParentOf(it) && !javaOutputDir.isParentOf(it)
+                            !kotlinOutputDir.isParentOf(it) && !javaOutputDir.isParentOf(it) &&
+                                it !in kspExtension.excludedSources
                         }
                     )
-                    kspTask.dependsOn(sourceSet.kotlin.nonSelfDeps(kspTaskName))
+                    kspTask.dependsOn(sourceSet.kotlin.nonSelfDeps(kspTaskName).filter { it.name !in filteredTasks })
                 }
             }