diff --git a/src/extract.js b/src/extract.js
new file mode 100644
index 0000000..f4602ba
--- /dev/null
+++ b/src/extract.js
@@ -0,0 +1,44 @@
+const stripStoryPointsAndTaskToken = function (name) {
+  return name
+    .replace(/^(\s*\(\d+\))?\s*/, "") // story points, e.g. (3)
+    .replace(/\s*#\w+\s*$/, ""); // task token, e.g. #orga_5417
+};
+
+const extractProjectFromLabels = function (labels) {
+  const projectLabels = labels
+    .map((label) => label.name.match(/(?<=#)[a-z0-9]+$/)?.[0])
+    .filter((prefix) => prefix !== undefined);
+  if (projectLabels.length === 0) {
+    throw new Error("Card has no valid project labels.");
+  }
+  if (projectLabels.length > 1) {
+    throw new Error("Card has multiple project labels.");
+  }
+  return projectLabels[0];
+};
+
+const extractTaskFromLabels = function (labels) {
+  const tasks = labels
+    .map((label) => label.name.match(/(?<=!)\w+$/)?.[0])
+    .filter((prefix) => prefix !== undefined);
+  if (tasks.length === 0) {
+    return null;
+  }
+  if (tasks.length > 1) {
+    throw new Error("Card has multiple tasks labels.");
+  }
+  return tasks[0];
+};
+
+export const extractTrackingData = async function (t) {
+  const card = await t.card("name", "labels", "idShort", "shortLink");
+  const project = extractProjectFromLabels(card.labels);
+
+  return {
+    project,
+    task:
+      extractTaskFromLabels(card.labels) ??
+      `${project}_${card.idShort}_${card.shortLink}`,
+    description: stripStoryPointsAndTaskToken(card.name),
+  };
+};
diff --git a/src/trello.js b/src/trello.js
index 5732538..b7a5878 100644
--- a/src/trello.js
+++ b/src/trello.js
@@ -1,4 +1,5 @@
 import { TogglGateway, TogglService } from "./toggl.js";
+import { extractTrackingData } from "./extract.js";
 
 const withErrorMessage = async function (t, fnc) {
   try {
@@ -9,33 +10,6 @@ const withErrorMessage = async function (t, fnc) {
   }
 };
 
-const stripStoryPointsAndTaskToken = function (name) {
-  return name
-    .replace(/^(\s*\(\d+\))?\s*/, "") // story points, e.g. (3)
-    .replace(/\s*#\w+\s*$/, ""); // task token, e.g. #orga_5417
-};
-
-const extractTrackingData = async function (t) {
-  const card = await t.card("name", "labels", "idShort", "shortLink");
-
-  const projectLabels = card.labels
-    .map((label) => label.name.match(/(?<=#)[a-z0-9]+$/)?.[0])
-    .filter((prefix) => prefix !== undefined);
-  if (projectLabels.length === 0) {
-    throw new Error("Card has no valid project labels.");
-  }
-  if (projectLabels.length > 1) {
-    throw new Error("Card has multiple project labels.");
-  }
-  const project = projectLabels[0];
-
-  return {
-    project,
-    task: `${project}_${card.idShort}_${card.shortLink}`,
-    description: stripStoryPointsAndTaskToken(card.name),
-  };
-};
-
 const setTrackingData = async function (t, tracking) {
   await t.set("card", "shared", "tracking", tracking);
 };