diff --git a/cmd/neofs-ir/defaults.go b/cmd/neofs-ir/defaults.go
index 58079e44..cb5f05f5 100644
--- a/cmd/neofs-ir/defaults.go
+++ b/cmd/neofs-ir/defaults.go
@@ -117,4 +117,8 @@ func defaultConfiguration(cfg *viper.Viper) {
 	cfg.SetDefault("indexer.cache_timeout", 15*time.Second)
 
 	cfg.SetDefault("locode.db.path", "")
+
+	// extra fee values for working mode without notary contract
+	cfg.SetDefault("fee.main_chain", 5000_0000)   // 0.5 Fixed8
+	cfg.SetDefault("fee.side_chain", 2_0000_0000) // 2.0 Fixed8
 }
diff --git a/pkg/innerring/config/fee.go b/pkg/innerring/config/fee.go
new file mode 100644
index 00000000..f448f1ba
--- /dev/null
+++ b/pkg/innerring/config/fee.go
@@ -0,0 +1,27 @@
+package config
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
+	"github.com/spf13/viper"
+)
+
+// FeeConfig is an instance that returns extra fee values for contract
+// invocations without notary support.
+type FeeConfig struct {
+	mainchain, sidechain fixedn.Fixed8
+}
+
+func NewFeeConfig(v *viper.Viper) *FeeConfig {
+	return &FeeConfig{
+		mainchain: fixedn.Fixed8(v.GetInt64("fee.main_chain")),
+		sidechain: fixedn.Fixed8(v.GetInt64("fee.side_chain")),
+	}
+}
+
+func (f FeeConfig) MainChainFee() fixedn.Fixed8 {
+	return f.mainchain
+}
+
+func (f FeeConfig) SideChainFee() fixedn.Fixed8 {
+	return f.sidechain
+}