diff --git a/web/cashtab/src/utils/__mocks__/mockECPair.js b/web/cashtab/src/utils/__mocks__/mockECPair.js
new file mode 100644
--- /dev/null
+++ b/web/cashtab/src/utils/__mocks__/mockECPair.js
@@ -0,0 +1,56 @@
+export const mockWif = 'L2mHRHSThu7JajH1V4vDDw56nWVCFckLVpJHzgp2dDknWfPJFr1w';
+
+// Note that the ECPair `mockECPair` does not include BigInteger type information or undefined fields
+export const mockECPair = {
+    d: {
+        0: 58579411,
+        1: 33017197,
+        2: 12049976,
+        3: 61298434,
+        4: 15265756,
+        5: 29527710,
+        6: 19761499,
+        7: 46297331,
+        8: 18590431,
+        9: 2710394,
+        10: 0,
+        t: 10,
+        s: 0,
+    },
+    compressed: true,
+    network: {
+        hashGenesisBlock:
+            '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f',
+        port: 8333,
+        portRpc: 8332,
+        protocol: { magic: 3652501241 },
+        seedsDns: [
+            'seed.bitcoinabc.org',
+            'seed-abc.bitcoinforks.org',
+            'btccash-seeder.bitcoinunlimited.info',
+            'seed.bitprim.org',
+            'seed.deadalnix.me',
+            'seeder.criptolayer.net',
+        ],
+        versions: {
+            bip32: { private: 76066276, public: 76067358 },
+            bip44: 145,
+            private: 128,
+            public: 0,
+            scripthash: 5,
+            messagePrefix: '\u0018BitcoinCash Signed Message:\n',
+        },
+        name: 'BitcoinCash',
+        per1: 100000000,
+        unit: 'BCH',
+        testnet: false,
+        messagePrefix: '\u0018BitcoinCash Signed Message:\n',
+        bip32: { public: 76067358, private: 76066276 },
+        pubKeyHash: 0,
+        scriptHash: 5,
+        wif: 128,
+        dustThreshold: null,
+    },
+};
+
+export const mockStringifiedECPair = JSON.stringify(mockECPair);
diff --git a/web/cashtab/src/utils/__tests__/cashMethods.test.js b/web/cashtab/src/utils/__tests__/cashMethods.test.js
--- a/web/cashtab/src/utils/__tests__/cashMethods.test.js
+++ b/web/cashtab/src/utils/__tests__/cashMethods.test.js
@@ -33,6 +33,7 @@
     generateGenesisOpReturn,
     generateSendOpReturn,
     generateBurnOpReturn,
+    getECPairFromWIF,
 } from 'utils/cashMethods';
 import { currency } from 'components/Common/Ticker';
 import {
@@ -118,6 +119,7 @@
 } from '../__mocks__/mockTxBuilderData';
 import createTokenMock from '../../hooks/__mocks__/createToken';
 import TransactionBuilder from 'utils/txBuilder';
+import { mockWif, mockStringifiedECPair } from '../__mocks__/mockECPair';
 
 it(`generateSendOpReturn() returns correct script object for valid tokenUtxo and send quantity`, () => {
     const BCH = new BCHJS();
@@ -1770,4 +1772,9 @@
         const utxosMock = [{}, {}];
         expect(calcFee(utxosMock, 2, 1.01)).toBe(378);
     });
+    it(`Gets correct EC Pair from WIF`, () => {
+        expect(JSON.stringify(getECPairFromWIF(mockWif))).toBe(
+            mockStringifiedECPair,
+        );
+    });
 });
diff --git a/web/cashtab/src/utils/cashMethods.js b/web/cashtab/src/utils/cashMethods.js
--- a/web/cashtab/src/utils/cashMethods.js
+++ b/web/cashtab/src/utils/cashMethods.js
@@ -9,6 +9,8 @@
 import cashaddr from 'ecashaddrjs';
 import bs58 from 'bs58';
 import * as slpMdm from 'slp-mdm';
+import Bitcoin from '@psf/bitcoincashjs-lib';
+import coininfo from 'utils/coininfo';
 
 // function is based on BCH-JS' generateBurnOpReturn() however it's been trimmed down for Cashtab use
 // Reference: https://github.com/Permissionless-Software-Foundation/bch-js/blob/62e56c832b35731880fe448269818b853c76dd80/src/slp/tokentype1.js#L217
@@ -141,14 +143,38 @@
     return wif;
 };
 
+// Reference https://github.com/Permissionless-Software-Foundation/bch-js/blob/master/src/ecpair.js#L24
+// Modified for mainnet only
+export const getECPairFromWIF = wif => {
+    let xec = coininfo.bitcoincash.main;
+    const xecBitcoinJSLib = xec.toBitcoinJS();
+
+    return Bitcoin.ECPair.fromWIF(wif, xecBitcoinJSLib);
+};
+
 export const signUtxosByAddress = (BCH, inputUtxos, wallet, txBuilder) => {
     for (let i = 0; i < inputUtxos.length; i++) {
         const utxo = inputUtxos[i];
         const accounts = [wallet.Path245, wallet.Path145, wallet.Path1899];
-        const utxoEcPair = BCH.ECPair.fromWIF(
-            accounts.filter(acc => acc.cashAddress === utxo.address).pop()
-                .fundingWif,
-        );
+
+        const wif = accounts
+            .filter(acc => acc.cashAddress === utxo.address)
+            .pop().fundingWif;
+
+        console.log(`wif`, wif);
+
+        const utxoEcPair = BCH.ECPair.fromWIF(wif);
+
+        const localUtxoEcPair = getECPairFromWIF(wif);
+
+        console.log(`utxoEcPair`, utxoEcPair);
+        console.log(`localUtxoEcPair`, localUtxoEcPair);
+
+        console.log(`stringified`, JSON.stringify(utxoEcPair));
+
+        if (JSON.stringify(utxoEcPair) === JSON.stringify(localUtxoEcPair)) {
+            console.log(`local method matches legacy method`);
+        }
 
         txBuilder.sign(
             i,