diff --git a/cli/paramcontext/context.go b/cli/paramcontext/context.go
index 361af66fe..5ebfe9efc 100644
--- a/cli/paramcontext/context.go
+++ b/cli/paramcontext/context.go
@@ -12,14 +12,9 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
 )
 
-// validUntilBlockIncrement is the number of extra blocks to add to an exported transaction.
-const validUntilBlockIncrement = 50
-
 // InitAndSave creates an incompletely signed transaction which can be used
 // as an input to `multisig sign`.
 func InitAndSave(net netmode.Magic, tx *transaction.Transaction, acc *wallet.Account, filename string) error {
-	// avoid fast transaction expiration
-	tx.ValidUntilBlock += validUntilBlockIncrement
 	priv := acc.PrivateKey()
 	pub := priv.PublicKey()
 	sign := priv.SignHashable(uint32(net), tx)
diff --git a/cli/smartcontract/smart_contract.go b/cli/smartcontract/smart_contract.go
index f6f038418..e571f6630 100644
--- a/cli/smartcontract/smart_contract.go
+++ b/cli/smartcontract/smart_contract.go
@@ -743,6 +743,8 @@ func invokeWithArgs(ctx *cli.Context, acc *wallet.Account, wall *wallet.Wallet,
 		}
 		tx.NetworkFee += int64(gas)
 		if out != "" {
+			// Make a long-lived transaction, it's to be signed manually.
+			tx.ValidUntilBlock += (ver.Protocol.MaxValidUntilBlockIncrement - uint32(ver.Protocol.ValidatorsCount)) - 2
 			m := act.GetNetwork()
 			if err := paramcontext.InitAndSave(m, tx, acc, out); err != nil {
 				return sender, cli.NewExitError(err, 1)
diff --git a/cli/wallet/nep11.go b/cli/wallet/nep11.go
index 0631e8bc8..e910966b8 100644
--- a/cli/wallet/nep11.go
+++ b/cli/wallet/nep11.go
@@ -275,6 +275,12 @@ func signAndSendNEP11Transfer(ctx *cli.Context, c *rpcclient.Client, acc *wallet
 	tx.SystemFee += int64(sysgas)
 
 	if outFile := ctx.String("out"); outFile != "" {
+		ver, err := c.GetVersion()
+		if err != nil {
+			return cli.NewExitError(fmt.Errorf("RPC failure: %w", err), 1)
+		}
+		// Make a long-lived transaction, it's to be signed manually.
+		tx.ValidUntilBlock += (ver.Protocol.MaxValidUntilBlockIncrement - uint32(ver.Protocol.ValidatorsCount)) - 2
 		m, err := c.GetNetwork()
 		if err != nil {
 			return cli.NewExitError(fmt.Errorf("failed to save tx: %w", err), 1)
diff --git a/cli/wallet/nep17.go b/cli/wallet/nep17.go
index 0999df7e5..1591f980f 100644
--- a/cli/wallet/nep17.go
+++ b/cli/wallet/nep17.go
@@ -647,6 +647,12 @@ func signAndSendNEP17Transfer(ctx *cli.Context, c *rpcclient.Client, acc *wallet
 	tx.SystemFee += int64(sysgas)
 
 	if outFile := ctx.String("out"); outFile != "" {
+		ver, err := c.GetVersion()
+		if err != nil {
+			return cli.NewExitError(fmt.Errorf("RPC failure: %w", err), 1)
+		}
+		// Make a long-lived transaction, it's to be signed manually.
+		tx.ValidUntilBlock += (ver.Protocol.MaxValidUntilBlockIncrement - uint32(ver.Protocol.ValidatorsCount)) - 2
 		m, err := c.GetNetwork()
 		if err != nil {
 			return cli.NewExitError(fmt.Errorf("failed to save tx: %w", err), 1)