diff --git a/common/src/error.rs b/common/src/error.rs
new file mode 100644
index 0000000..825eb7e
--- /dev/null
+++ b/common/src/error.rs
@@ -0,0 +1,59 @@
+use serde::Deserialize;
+
+use crate::rpc_primitives::errors::RpcError;
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct SequencerRpcError {
+    pub jsonrpc: String,
+    pub error: RpcError,
+    pub id: u64,
+}
+
+#[derive(thiserror::Error, Debug)]
+pub enum SequencerClientError {
+    #[error("HTTP error")]
+    HTTPError(reqwest::Error),
+    #[error("Serde error")]
+    SerdeError(serde_json::Error),
+    #[error("Internal error")]
+    InternalError(SequencerRpcError),
+}
+
+impl From<reqwest::Error> for SequencerClientError {
+    fn from(value: reqwest::Error) -> Self {
+        SequencerClientError::HTTPError(value)
+    }
+}
+
+impl From<serde_json::Error> for SequencerClientError {
+    fn from(value: serde_json::Error) -> Self {
+        SequencerClientError::SerdeError(value)
+    }
+}
+
+impl From<SequencerRpcError> for SequencerClientError {
+    fn from(value: SequencerRpcError) -> Self {
+        SequencerClientError::InternalError(value)
+    }
+}
+
+#[derive(Debug, thiserror::Error)]
+pub enum ExecutionFailureKind {
+    #[error("Failed to get account data from sequencer")]
+    SequencerError,
+    #[error("Inputs amounts does not match outputs")]
+    AmountMismatchError,
+    #[error("Accounts key not found")]
+    KeyNotFoundError,
+    #[error("Sequencer client error: {0:?}")]
+    SequencerClientError(#[from] SequencerClientError),
+    #[error("Can not pay for operation")]
+    InsufficientFundsError,
+}
+
+#[derive(Debug, thiserror::Error)]
+pub enum TransactionSignatureError {
+    #[error("invalid signature for transaction body")]
+    InvalidSignature,
+}
+
diff --git a/common/src/lib.rs b/common/src/lib.rs
index 5a96dc1..3c02565 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -1,98 +1,10 @@
-use serde::Deserialize;
-
 pub mod block;
 pub mod rpc_primitives;
 pub mod sequencer_client;
 pub mod transaction;
+pub mod error;
 
 //Module for tests utility functions
 pub mod test_utils;
-
-use rpc_primitives::errors::RpcError;
-
 pub type HashType = [u8; 32];
 
-#[derive(Debug, Clone, Deserialize)]
-pub struct SequencerRpcError {
-    pub jsonrpc: String,
-    pub error: RpcError,
-    pub id: u64,
-}
-
-#[derive(thiserror::Error, Debug)]
-pub enum SequencerClientError {
-    #[error("HTTP error")]
-    HTTPError(reqwest::Error),
-    #[error("Serde error")]
-    SerdeError(serde_json::Error),
-    #[error("Internal error")]
-    InternalError(SequencerRpcError),
-}
-
-impl From<reqwest::Error> for SequencerClientError {
-    fn from(value: reqwest::Error) -> Self {
-        SequencerClientError::HTTPError(value)
-    }
-}
-
-impl From<serde_json::Error> for SequencerClientError {
-    fn from(value: serde_json::Error) -> Self {
-        SequencerClientError::SerdeError(value)
-    }
-}
-
-impl From<SequencerRpcError> for SequencerClientError {
-    fn from(value: SequencerRpcError) -> Self {
-        SequencerClientError::InternalError(value)
-    }
-}
-
-#[derive(Debug, thiserror::Error)]
-pub enum ExecutionFailureKind {
-    #[error("Failed to write into builder err: {0:?}")]
-    WriteError(anyhow::Error),
-    #[error("Failed to interact with a db err: {0:?}")]
-    DBError(anyhow::Error),
-    #[error("Failed to build builder err: {0:?}")]
-    BuilderError(anyhow::Error),
-    #[error("Failed prove execution err: {0:?}")]
-    ProveError(anyhow::Error),
-    #[error("Failed to decode data from VM: {0:?}")]
-    DecodeError(String),
-    #[error("Failed to get account data from sequencer")]
-    SequencerError,
-    #[error("Inputs amounts does not match outputs")]
-    AmountMismatchError,
-    #[error("Accounts key not found")]
-    KeyNotFoundError,
-    #[error("Sequencer client error: {0:?}")]
-    SequencerClientError(#[from] SequencerClientError),
-    #[error("Insufficient gas for operation")]
-    InsufficientGasError,
-    #[error("Can not pay for operation")]
-    InsufficientFundsError,
-}
-
-impl ExecutionFailureKind {
-    pub fn write_error(err: anyhow::Error) -> Self {
-        Self::WriteError(err)
-    }
-
-    pub fn builder_error(err: anyhow::Error) -> Self {
-        Self::BuilderError(err)
-    }
-
-    pub fn prove_error(err: anyhow::Error) -> Self {
-        Self::ProveError(err)
-    }
-
-    pub fn db_error(err: anyhow::Error) -> Self {
-        Self::DBError(err)
-    }
-}
-
-#[derive(Debug, thiserror::Error)]
-pub enum TransactionSignatureError {
-    #[error("invalid signature for transaction body")]
-    InvalidSignature,
-}
diff --git a/common/src/sequencer_client/mod.rs b/common/src/sequencer_client/mod.rs
index 1aec903..cbcd077 100644
--- a/common/src/sequencer_client/mod.rs
+++ b/common/src/sequencer_client/mod.rs
@@ -14,7 +14,7 @@ use crate::rpc_primitives::requests::{
 };
 use crate::sequencer_client::json::AccountInitialData;
 use crate::transaction::{EncodedTransaction, NSSATransaction};
-use crate::{SequencerClientError, SequencerRpcError};
+use crate::error::{SequencerClientError, SequencerRpcError};
 
 pub mod json;
 
diff --git a/wallet/src/lib.rs b/wallet/src/lib.rs
index 0e8b1cb..079e47d 100644
--- a/wallet/src/lib.rs
+++ b/wallet/src/lib.rs
@@ -2,7 +2,7 @@ use std::{fs::File, io::Write, path::PathBuf, str::FromStr, sync::Arc};
 
 use base64::{Engine, engine::general_purpose::STANDARD as BASE64};
 use common::{
-    ExecutionFailureKind,
+    error::ExecutionFailureKind,
     sequencer_client::{SequencerClient, json::SendTxResponse},
     transaction::{EncodedTransaction, NSSATransaction},
 };
diff --git a/wallet/src/token_transfers/deshielded.rs b/wallet/src/token_transfers/deshielded.rs
index 6bc812b..d270728 100644
--- a/wallet/src/token_transfers/deshielded.rs
+++ b/wallet/src/token_transfers/deshielded.rs
@@ -1,4 +1,4 @@
-use common::{ExecutionFailureKind, sequencer_client::json::SendTxResponse};
+use common::{error::ExecutionFailureKind, sequencer_client::json::SendTxResponse};
 use key_protocol::key_management::ephemeral_key_holder::EphemeralKeyHolder;
 use nssa::{
     Address, PrivacyPreservingTransaction,
diff --git a/wallet/src/token_transfers/private.rs b/wallet/src/token_transfers/private.rs
index 5253acd..0673d17 100644
--- a/wallet/src/token_transfers/private.rs
+++ b/wallet/src/token_transfers/private.rs
@@ -1,4 +1,4 @@
-use common::{ExecutionFailureKind, sequencer_client::json::SendTxResponse};
+use common::{error::ExecutionFailureKind, sequencer_client::json::SendTxResponse};
 use key_protocol::key_management::ephemeral_key_holder::EphemeralKeyHolder;
 use nssa::{
     Address, PrivacyPreservingTransaction,
diff --git a/wallet/src/token_transfers/public.rs b/wallet/src/token_transfers/public.rs
index 22d50eb..86651e8 100644
--- a/wallet/src/token_transfers/public.rs
+++ b/wallet/src/token_transfers/public.rs
@@ -1,4 +1,4 @@
-use common::{ExecutionFailureKind, sequencer_client::json::SendTxResponse};
+use common::{error::ExecutionFailureKind, sequencer_client::json::SendTxResponse};
 use nssa::{
     Address, PublicTransaction,
     program::Program,
diff --git a/wallet/src/token_transfers/shielded.rs b/wallet/src/token_transfers/shielded.rs
index 1cf1cb7..6435bfe 100644
--- a/wallet/src/token_transfers/shielded.rs
+++ b/wallet/src/token_transfers/shielded.rs
@@ -1,4 +1,4 @@
-use common::{ExecutionFailureKind, sequencer_client::json::SendTxResponse};
+use common::{error::ExecutionFailureKind, sequencer_client::json::SendTxResponse};
 use key_protocol::key_management::ephemeral_key_holder::EphemeralKeyHolder;
 use nssa::{
     Account, Address, PrivacyPreservingTransaction,