diff --git a/web/cashtab/src/utils/cashMethods.js b/web/cashtab/src/utils/cashMethods.js
index af19ef6d7..52723d12b 100644
--- a/web/cashtab/src/utils/cashMethods.js
+++ b/web/cashtab/src/utils/cashMethods.js
@@ -1,37 +1,39 @@
 import { currency } from '@components/Common/Ticker';
 import BigNumber from 'bignumber.js';
 
 export const fromSmallestDenomination = (
     amount,
     cashDecimals = currency.cashDecimals,
 ) => {
     const amountBig = new BigNumber(amount);
     const multiplier = new BigNumber(10 ** (-1 * cashDecimals));
     const amountInBaseUnits = amountBig.times(multiplier);
     return amountInBaseUnits.toNumber();
 };
 
 export const toSmallestDenomination = (
     sendAmount,
     cashDecimals = currency.cashDecimals,
 ) => {
     // Replace the BCH.toSatoshi method with an equivalent function that works for arbitrary decimal places
     // Example, for an 8 decimal place currency like Bitcoin
     // Input: a BigNumber of the amount of Bitcoin to be sent
     // Output: a BigNumber of the amount of satoshis to be sent, or false if input is invalid
 
     // Validate
     // Input should be a BigNumber with no more decimal places than cashDecimals
     const isValidSendAmount =
         BigNumber.isBigNumber(sendAmount) && sendAmount.dp() <= cashDecimals;
     if (!isValidSendAmount) {
         return false;
     }
     const conversionFactor = new BigNumber(10 ** cashDecimals);
     const sendAmountSmallestDenomination = sendAmount.times(conversionFactor);
     return sendAmountSmallestDenomination;
 };
 
 export const formatBalance = x => {
-    return x.toString().replace(/\B(?<!\.\d*)(?=(\d{3})+(?!\d))/g, ',');
+    let balanceInParts = x.toString().split('.');
+    balanceInParts[0] = balanceInParts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+    return balanceInParts.join('.');
 };