diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70fa9cb..4b363f6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@
 - Added `begin-at-new-page` option for `task` and `subtask`
 - Added `skip` option for `task` and `subtask`
 - Added `bonus-style` option for `task`
+- Added `theorem-counter-reset` option for `task` and `subtask`
 
 ## [0.4.0] - 2025-11-22
 
diff --git a/examples/task-config.typ b/examples/task-config.typ
index 10816f8..ef89d12 100644
--- a/examples/task-config.typ
+++ b/examples/task-config.typ
@@ -1,4 +1,4 @@
-#import "@preview/sheetstorm:0.4.0": assignment, subtask, task
+#import "@preview/sheetstorm:0.4.0": assignment, subtask, task, theorem
 
 #show: assignment.with(
   title: "Task Configuration Example",
@@ -10,6 +10,7 @@
 // You can customize the task/subtask functions like so:
 #let task = task.with(
   todo-show: false,
+  theorem-counter-reset: true,
 )
 #let subtask = subtask.with(
   numbering: ("a.", "i."),
@@ -33,8 +34,14 @@
 
 #task(counter-show: false, name: "Name")[
   You can disable the task number in the title.
+
+  #theorem[First theorem of the task.]
 ]
 
-#task(hidden: true, counter: 7)[This task is hidden in the score box.]
+#task(hidden: true, counter: 7)[
+  This task is hidden in the score box.
+
+  #theorem[Also the theorem counter was automatically reset.]
+]
 
 #task(skip: 1)[This would be task 8 but now it is task 9.]
diff --git a/src/task.typ b/src/task.typ
index b92e3cb..d7057bd 100644
--- a/src/task.typ
+++ b/src/task.typ
@@ -104,6 +104,8 @@
   bonus-style: t => [#t (#context i18n.translate("Bonus"))],
   /// Whether the task is hidden in the score box. -> bool
   hidden: false,
+  /// Whether to reset the theorem counter at the start of the task. -> bool
+  theorem-counter-reset: false,
   /// Padding above the task. -> auto | length
   space-above: auto,
   /// Padding below the task. -> auto | length
@@ -147,6 +149,10 @@
     c("sheetstorm-todo").step()
   }
 
+  if theorem-counter-reset {
+    c("sheetstorm-theorem-count").update(1)
+  }
+
   let maybe-todo = context {
     let curr-task = query(selector(<sheetstorm-task>).before(here()))
       .last()
@@ -294,6 +300,8 @@
   ///
   /// -> bool
   numbering-cycle: false,
+  /// Whether to reset the theorem counter at the start of the subtask. -> bool
+  theorem-counter-reset: false,
   /// The minimum indent of the subtask body.
   ///
   /// The indent of the subtask body is the maximum of this value and the width of the marker.
@@ -316,6 +324,8 @@
   /// -> content..
   ..body-args,
 ) = {
+  let c = std.counter
+
   assert(body-args.named().len() == 0, message: "Unexpected named argument.")
   assert(
     body-args.pos().len() == 1 or body-args.pos().len() == 2,
@@ -348,6 +358,10 @@
     })
   }
 
+  if theorem-counter-reset {
+    c("sheetstorm-theorem-count").update(1)
+  }
+
   let marker = if marker != auto { marker } else {
     context {
       let depth = state("sheetstorm-subtask").get().len() - 1
diff --git a/tests/examples/task-config/ref/1.png b/tests/examples/task-config/ref/1.png
index f285948..994c8fe 100644
Binary files a/tests/examples/task-config/ref/1.png and b/tests/examples/task-config/ref/1.png differ
diff --git a/tests/examples/task-config/test.typ b/tests/examples/task-config/test.typ
index 8b07012..bc66bac 100644
--- a/tests/examples/task-config/test.typ
+++ b/tests/examples/task-config/test.typ
@@ -1,4 +1,4 @@
-#import "@local/sheetstorm:0.4.0": assignment, subtask, task
+#import "@local/sheetstorm:0.4.0": assignment, subtask, task, theorem
 
 #show: assignment.with(
   title: "Task Configuration Example",
@@ -10,6 +10,7 @@
 // You can customize the task/subtask functions like so:
 #let task = task.with(
   todo-show: false,
+  theorem-counter-reset: true,
 )
 #let subtask = subtask.with(
   numbering: ("a.", "i."),
@@ -33,8 +34,14 @@
 
 #task(counter-show: false, name: "Name")[
   You can disable the task number in the title.
+
+  #theorem[First theorem of the task.]
 ]
 
-#task(hidden: true, counter: 7)[This task is hidden in the score box.]
+#task(hidden: true, counter: 7)[
+  This task is hidden in the score box.
+
+  #theorem[Also the theorem counter was automatically reset.]
+]
 
 #task(skip: 1)[This would be task 8 but now it is task 9.]