diff --git a/client/accounting.go b/client/accounting.go
index 9165a1d4..da8b974b 100644
--- a/client/accounting.go
+++ b/client/accounting.go
@@ -41,7 +41,6 @@ func (x *PrmBalanceGet) SetAccount(id user.ID) {
 //
 // Return errors:
 //   - [ErrMissingAccount]
-//   - [ErrMissingSigner]
 func (c *Client) BalanceGet(ctx context.Context, prm PrmBalanceGet) (accounting.Decimal, error) {
 	var err error
 	defer func() {
@@ -54,11 +53,6 @@ func (c *Client) BalanceGet(ctx context.Context, prm PrmBalanceGet) (accounting.
 		return accounting.Decimal{}, err
 	}
 
-	if c.prm.signer == nil {
-		err = ErrMissingSigner
-		return accounting.Decimal{}, err
-	}
-
 	// form request body
 	var accountV2 refs.OwnerID
 	prm.account.WriteToV2(&accountV2)
diff --git a/client/netmap.go b/client/netmap.go
index c55f2b2a..8c822d30 100644
--- a/client/netmap.go
+++ b/client/netmap.go
@@ -52,20 +52,12 @@ func (x ResEndpointInfo) NodeInfo() netmap.NodeInfo {
 //
 // Exactly one return value is non-nil. Server status return is returned in ResEndpointInfo.
 // Reflects all internal errors in second return value (transport problems, response processing, etc.).
-//
-// Returns errors:
-//   - [ErrMissingSigner]
 func (c *Client) EndpointInfo(ctx context.Context, prm PrmEndpointInfo) (*ResEndpointInfo, error) {
 	var err error
 	defer func() {
 		c.sendStatistic(stat.MethodEndpointInfo, err)()
 	}()
 
-	if c.prm.signer == nil {
-		err = ErrMissingSigner
-		return nil, err
-	}
-
 	// form request
 	var req v2netmap.LocalNodeInfoRequest
 
@@ -199,19 +191,12 @@ type PrmNetMapSnapshot struct {
 // Context is required and MUST NOT be nil. It is used for network communication.
 //
 // Reflects all internal errors in second return value (transport problems, response processing, etc.).
-//
-// Returns errors:
-//   - [ErrMissingSigner]
 func (c *Client) NetMapSnapshot(ctx context.Context, _ PrmNetMapSnapshot) (netmap.NetMap, error) {
 	var err error
 	defer func() {
 		c.sendStatistic(stat.MethodNetMapSnapshot, err)()
 	}()
 
-	if c.prm.signer == nil {
-		err = ErrMissingSigner
-		return netmap.NetMap{}, err
-	}
 	// form request body
 	var body v2netmap.SnapshotRequestBody
 
diff --git a/client/reputation.go b/client/reputation.go
index 99300b69..a0e70e3b 100644
--- a/client/reputation.go
+++ b/client/reputation.go
@@ -31,7 +31,6 @@ type PrmAnnounceLocalTrust struct {
 // Return errors:
 //   - [ErrZeroEpoch]
 //   - [ErrMissingTrusts]
-//   - [ErrMissingSigner]
 //
 // Parameter epoch must not be zero.
 // Parameter trusts must not be empty.
@@ -51,11 +50,6 @@ func (c *Client) AnnounceLocalTrust(ctx context.Context, epoch uint64, trusts []
 		return err
 	}
 
-	if c.prm.signer == nil {
-		err = ErrMissingSigner
-		return err
-	}
-
 	// form request body
 	reqBody := new(v2reputation.AnnounceLocalTrustRequestBody)
 	reqBody.SetEpoch(epoch)
@@ -118,7 +112,6 @@ func (x *PrmAnnounceIntermediateTrust) SetIteration(iter uint32) {
 //
 // Return errors:
 //   - [ErrZeroEpoch]
-//   - [ErrMissingSigner]
 //
 // Parameter epoch must not be zero.
 func (c *Client) AnnounceIntermediateTrust(ctx context.Context, epoch uint64, trust reputation.PeerToPeerTrust, prm PrmAnnounceIntermediateTrust) error {
@@ -132,11 +125,6 @@ func (c *Client) AnnounceIntermediateTrust(ctx context.Context, epoch uint64, tr
 		return err
 	}
 
-	if c.prm.signer == nil {
-		err = ErrMissingSigner
-		return err
-	}
-
 	var v2Trust v2reputation.PeerToPeerTrust
 	trust.WriteToV2(&v2Trust)