diff --git a/examples/expense.json b/examples/expense.json
index 2d7e1ee..223a7ef 100644
--- a/examples/expense.json
+++ b/examples/expense.json
@@ -3,6 +3,7 @@
   "description": "Dedicated server: andromeda.kosmos.org, April 2020",
   "currency": "EUR",
   "amount": 39.00,
+  "amountSats": 422966,
   "date": "2020-05-06",
   "url": "https://wiki.kosmos.org/Infrastructure#Hetzner",
   "tags": ["infrastructure", "server", "hetzner"]
diff --git a/schemas/expense.js b/schemas/expense.js
index b40df11..e4157e2 100644
--- a/schemas/expense.js
+++ b/schemas/expense.js
@@ -60,6 +60,15 @@ module.exports = {
         42.0
       ]
     },
+    "amountSats": {
+      "type": "number",
+      "title": "Amount in sats",
+      "description": "Amount in BTC satoshis",
+      "default": 0,
+      "examples": [
+        21000
+      ]
+    },
     "date": {
       "type": "string",
       "format": "date",