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
@@ -1,5 +1,7 @@
 import { currency } from '../../components/Common/Ticker';
 import BigNumber from 'bignumber.js';
+import BCHJS from '@psf/bch-js';
+import useBCH from '../useBCH';
 
 describe('Testing functions for upgrading Cashtab', () => {
     it('Replacement currency.dust parameter parsing matches legacy DUST parameter', () => {
@@ -7,4 +9,16 @@
             0.00000546,
         );
     });
+    it('For strings with 8 decimal places, toBaseUnit() outputs a BigNumber equivalent to the toSatoshi() integer output', () => {
+        const BCH = new BCHJS();
+        const testAmount = 0.12345678;
+        const { toSmallestDenomination } = useBCH();
+        const dustLimitInSatoshis = BCH.BitcoinCash.toSatoshi(
+            new BigNumber(testAmount).toFixed(8),
+        );
+        const dustLimitInCashDecimalsDenomination = parseInt(
+            toSmallestDenomination(new BigNumber(testAmount)).toString(),
+        );
+        expect(dustLimitInSatoshis).toBe(dustLimitInCashDecimalsDenomination);
+    });
 });
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
@@ -406,6 +406,18 @@
         return link;
     };
 
+    const toSmallestDenomination = sendAmount => {
+        // 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
+        const conversionFactor = new BigNumber(10 ** currency.cashDecimals);
+        const sendAmountSmallestDenomination = sendAmount.times(
+            conversionFactor,
+        );
+        return sendAmountSmallestDenomination;
+    };
+
     const sendBch = async (
         BCH,
         wallet,
@@ -440,7 +452,7 @@
                 transactionBuilder = new BCH.TransactionBuilder();
             else transactionBuilder = new BCH.TransactionBuilder('testnet');
 
-            const satoshisToSend = BCH.BitcoinCash.toSatoshi(value.toFixed(8));
+            const satoshisToSend = toSmallestDenomination(value);
             let originalAmount = new BigNumber(0);
             let txFee = 0;
             for (let i = 0; i < utxos.length; i++) {
@@ -574,6 +586,7 @@
         getSlpBalancesAndUtxos,
         getTxHistory,
         getRestUrl,
+        toSmallestDenomination,
         sendBch,
         sendToken,
     };