diff --git a/web/cashtab/src/hooks/__tests__/migrations.test.js b/web/cashtab/src/hooks/__tests__/migrations.test.js
--- a/web/cashtab/src/hooks/__tests__/migrations.test.js
+++ b/web/cashtab/src/hooks/__tests__/migrations.test.js
@@ -9,6 +9,22 @@
             0.00000546,
         );
     });
+    it('Replicate 8-decimal return value from instance of toSatoshi in TransactionBuilder with toSmallestDenomination', () => {
+        const BCH = new BCHJS();
+        const { toSmallestDenomination } = useBCH();
+        const testSendAmount = '0.12345678';
+        expect(
+            parseInt(toSmallestDenomination(new BigNumber(testSendAmount), 8)),
+        ).toBe(BCH.BitcoinCash.toSatoshi(Number(testSendAmount).toFixed(8)));
+    });
+    it('Replicate 2-decimal return value from instance of toSatoshi in TransactionBuilder with toSmallestDenomination', () => {
+        const BCH = new BCHJS();
+        const { toSmallestDenomination } = useBCH();
+        const testSendAmount = '0.12';
+        expect(
+            parseInt(toSmallestDenomination(new BigNumber(testSendAmount), 8)),
+        ).toBe(BCH.BitcoinCash.toSatoshi(Number(testSendAmount).toFixed(8)));
+    });
     it('toSmallestDenomination() returns false if input is not a BigNumber', () => {
         const { toSmallestDenomination } = useBCH();
         const testInput = 132.12345678;
diff --git a/web/cashtab/src/hooks/useBCH.js b/web/cashtab/src/hooks/useBCH.js
--- a/web/cashtab/src/hooks/useBCH.js
+++ b/web/cashtab/src/hooks/useBCH.js
@@ -510,7 +510,7 @@
 
             transactionBuilder.addOutput(
                 BCH.Address.toCashAddress(destinationAddress),
-                BCH.BitcoinCash.toSatoshi(Number(sendAmount).toFixed(8)),
+                parseInt(toSmallestDenomination(value)),
             );
 
             if (