diff --git a/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/index.tsx b/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/index.tsx
index a590ba254..0952a3e21 100644
--- a/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/index.tsx
+++ b/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/index.tsx
@@ -80,7 +80,7 @@ export const PayWithCryptoTab = ({ skipOnCloseCallback, isSwitchingChainRef }: P
     onSuccessChecker
   } = selectPaymentSettings
 
-  const isFree = Number(price) == 0
+  const isFree = BigInt(price) === 0n
 
   const network = findSupportedNetwork(chain)
   const chainId = network?.chainId || 137
@@ -204,16 +204,16 @@ export const PayWithCryptoTab = ({ skipOnCloseCallback, isSwitchingChainRef }: P
     compareAddress(balance.contractAddress, selectedCurrency.address)
   )
 
-  const isInsufficientBalance =
-    tokenBalance === undefined ||
-    (tokenBalance?.balance && tokenBalance.balance !== '' && BigInt(tokenBalance.balance) < BigInt(selectedCurrencyPrice))
+  const userBalance = BigInt(tokenBalance?.balance || '0')
+  const requiredBalance = BigInt(selectedCurrencyPrice)
+  const isInsufficientBalance = !isFree && userBalance < requiredBalance
 
   useInitialBalanceCheck({
     userAddress: userAddress || '',
     buyCurrencyAddress,
     price,
     chainId,
-    isInsufficientBalance: isInsufficientBalance as boolean,
+    isInsufficientBalance,
     tokenBalancesIsLoading
   })
 
diff --git a/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/useInitialBalanceCheck.tsx b/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/useInitialBalanceCheck.tsx
index 792d8cde1..321635db2 100644
--- a/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/useInitialBalanceCheck.tsx
+++ b/packages/checkout/src/views/Checkout/PaymentMethodSelect/PayWithCrypto/useInitialBalanceCheck.tsx
@@ -26,6 +26,7 @@ export const useInitialBalanceCheck = ({
   isInsufficientBalance,
   tokenBalancesIsLoading
 }: UseInitialBalanceCheckArgs) => {
+  const isFree = BigInt(price) === 0n
   const { navigation, setNavigation } = useNavigationCheckout()
 
   const isInitialBalanceChecked = (navigation.params as PaymentMethodSelectionParams).isInitialBalanceChecked
@@ -42,7 +43,7 @@ export const useInitialBalanceCheck = ({
       chainId: chainId
     },
     {
-      disabled: isInitialBalanceChecked || !isInsufficientBalance
+      disabled: isInitialBalanceChecked || !isInsufficientBalance || isFree
     }
   )
 
@@ -65,7 +66,7 @@ export const useInitialBalanceCheck = ({
       omitMetadata: true
     },
     {
-      disabled: isInitialBalanceChecked || !isInsufficientBalance || swapRoutesIsLoading
+      disabled: isInitialBalanceChecked || !isInsufficientBalance || swapRoutesIsLoading || isFree
     }
   )