diff --git a/src/app-simplefin/app-simplefin.js b/src/app-simplefin/app-simplefin.js
index a1729b1c..7c123166 100644
--- a/src/app-simplefin/app-simplefin.js
+++ b/src/app-simplefin/app-simplefin.js
@@ -48,7 +48,7 @@ app.post(
     }
 
     try {
-      const accounts = await getAccounts(accessKey, null, null, true);
+      const accounts = await getAccounts(accessKey, null, null, null, true);
 
       res.send({
         status: 'ok',
@@ -91,7 +91,11 @@ app.post(
       : startDate;
     let results;
     try {
-      results = await getTransactions(accessKey, new Date(earliestStartDate));
+      results = await getTransactions(
+        accessKey,
+        Array.isArray(accountId) ? accountId : [accountId],
+        new Date(earliestStartDate),
+      );
     } catch (e) {
       if (e.message === 'Forbidden') {
         invalidToken(res);
@@ -293,12 +297,12 @@ async function getAccessKey(base64Token) {
   });
 }
 
-async function getTransactions(accessKey, startDate, endDate) {
+async function getTransactions(accessKey, accounts, startDate, endDate) {
   const now = new Date();
   startDate = startDate || new Date(now.getFullYear(), now.getMonth(), 1);
   endDate = endDate || new Date(now.getFullYear(), now.getMonth() + 1, 1);
   console.log(`${getDate(startDate)} - ${getDate(endDate)}`);
-  return await getAccounts(accessKey, startDate, endDate);
+  return await getAccounts(accessKey, accounts, startDate, endDate);
 }
 
 function getDate(date) {
@@ -311,6 +315,7 @@ function normalizeDate(date) {
 
 async function getAccounts(
   accessKey,
+  accounts,
   startDate,
   endDate,
   noTransactions = false,
@@ -337,6 +342,12 @@ async function getAccounts(
     params.push(`balances-only=1`);
   }
 
+  if (accounts) {
+    accounts.forEach((id) => {
+      params.push(`account=${encodeURIComponent(id)}`);
+    });
+  }
+
   let queryString = '';
   if (params.length > 0) {
     queryString += '?' + params.join('&');
diff --git a/upcoming-release-notes/483.md b/upcoming-release-notes/483.md
new file mode 100644
index 00000000..d21ec941
--- /dev/null
+++ b/upcoming-release-notes/483.md
@@ -0,0 +1,6 @@
+---
+category: Enhancements
+authors: [psybers]
+---
+
+SimpleFIN: when sync'ing a single account, only pull transactions for that account.