diff --git a/src/libs/getPlaidOAuthReceivedRedirectURI/index.native.js b/src/libs/getPlaidOAuthReceivedRedirectURI/index.native.js
deleted file mode 100644
index 461f67a0a4bc..000000000000
--- a/src/libs/getPlaidOAuthReceivedRedirectURI/index.native.js
+++ /dev/null
@@ -1 +0,0 @@
-export default () => null;
diff --git a/src/libs/getPlaidOAuthReceivedRedirectURI/index.native.ts b/src/libs/getPlaidOAuthReceivedRedirectURI/index.native.ts
new file mode 100644
index 000000000000..c435d1799cb8
--- /dev/null
+++ b/src/libs/getPlaidOAuthReceivedRedirectURI/index.native.ts
@@ -0,0 +1,5 @@
+import GetPlaidOAuthReceivedRedirectURI from './types';
+
+const getPlaidOAuthReceivedRedirectURI: GetPlaidOAuthReceivedRedirectURI = () => null;
+
+export default getPlaidOAuthReceivedRedirectURI;
diff --git a/src/libs/getPlaidOAuthReceivedRedirectURI/index.js b/src/libs/getPlaidOAuthReceivedRedirectURI/index.ts
similarity index 77%
rename from src/libs/getPlaidOAuthReceivedRedirectURI/index.js
rename to src/libs/getPlaidOAuthReceivedRedirectURI/index.ts
index 849332a12895..8492a2d9c91e 100644
--- a/src/libs/getPlaidOAuthReceivedRedirectURI/index.js
+++ b/src/libs/getPlaidOAuthReceivedRedirectURI/index.ts
@@ -1,10 +1,11 @@
+import GetPlaidOAuthReceivedRedirectURI from './types';
+
 /**
  * After a user authenticates their bank in the Plaid OAuth flow, Plaid returns us to the redirectURI we
  * gave them along with a stateID param. We hand off the receivedRedirectUri to PlaidLink to finish connecting
  * the user's account.
- * @returns {String | null}
  */
-export default () => {
+const getPlaidOAuthReceivedRedirectURI: GetPlaidOAuthReceivedRedirectURI = () => {
     const receivedRedirectURI = window.location.href;
     const receivedRedirectSearchParams = new URL(window.location.href).searchParams;
     const oauthStateID = receivedRedirectSearchParams.get('oauth_state_id');
@@ -15,3 +16,5 @@ export default () => {
     }
     return receivedRedirectURI;
 };
+
+export default getPlaidOAuthReceivedRedirectURI;
diff --git a/src/libs/getPlaidOAuthReceivedRedirectURI/types.ts b/src/libs/getPlaidOAuthReceivedRedirectURI/types.ts
new file mode 100644
index 000000000000..b89f023e05d3
--- /dev/null
+++ b/src/libs/getPlaidOAuthReceivedRedirectURI/types.ts
@@ -0,0 +1,3 @@
+type GetPlaidOAuthReceivedRedirectURI = () => null | string;
+
+export default GetPlaidOAuthReceivedRedirectURI;