diff --git a/pkg/morph/client/balance/balanceOf.go b/pkg/morph/client/balance/balanceOf.go
index a5fb8e82a..dbb245d34 100644
--- a/pkg/morph/client/balance/balanceOf.go
+++ b/pkg/morph/client/balance/balanceOf.go
@@ -11,14 +11,9 @@ import (
 // BalanceOf receives the amount of funds in the client's account
 // through the Balance contract call, and returns it.
 func (c *Client) BalanceOf(id user.ID) (*big.Int, error) {
-	h, err := id.ScriptHash()
-	if err != nil {
-		return nil, err
-	}
-
 	invokePrm := client.TestInvokePrm{}
 	invokePrm.SetMethod(balanceOfMethod)
-	invokePrm.SetArgs(h)
+	invokePrm.SetArgs(id.ScriptHash())
 
 	prms, err := c.client.TestInvoke(invokePrm)
 	if err != nil {
diff --git a/pkg/morph/client/balance/transfer.go b/pkg/morph/client/balance/transfer.go
index 52d69dccb..bac1f642d 100644
--- a/pkg/morph/client/balance/transfer.go
+++ b/pkg/morph/client/balance/transfer.go
@@ -22,22 +22,12 @@ type TransferPrm struct {
 // TransferX transfers p.Amount of GASe-12 from p.From to p.To
 // with details p.Details through direct smart contract call.
 func (c *Client) TransferX(ctx context.Context, p TransferPrm) error {
-	from, err := p.From.ScriptHash()
-	if err != nil {
-		return err
-	}
-
-	to, err := p.To.ScriptHash()
-	if err != nil {
-		return err
-	}
-
 	prm := client.InvokePrm{}
 	prm.SetMethod(transferXMethod)
-	prm.SetArgs(from, to, p.Amount, p.Details)
+	prm.SetArgs(p.From.ScriptHash(), p.To.ScriptHash(), p.Amount, p.Details)
 	prm.InvokePrmOptional = p.InvokePrmOptional
 
-	_, err = c.client.Invoke(ctx, prm)
+	_, err := c.client.Invoke(ctx, prm)
 	if err != nil {
 		return fmt.Errorf("invoke method (%s): %w", transferXMethod, err)
 	}