diff --git a/libsovtoken/src/logic/api_internals/add_request_fees.rs b/libsovtoken/src/logic/api_internals/add_request_fees.rs
index 9d9c81525..79ff25c65 100644
--- a/libsovtoken/src/logic/api_internals/add_request_fees.rs
+++ b/libsovtoken/src/logic/api_internals/add_request_fees.rs
@@ -129,7 +129,7 @@ pub fn closure_cb_response(command_handle: i32, cb: JsonCallbackUnwrapped) -> im
     KEEP all public methods above
 */
 
-fn add_fees(wallet_handle: i32, inputs: Inputs, outputs: Outputs, extra: Option<serde_json::Value>, request_json_map: SerdeMap, cb: Box<Fn(Result<SerdeMap, ErrorCode>) + Send + Sync>) -> Result<(), ErrorCode> {
+fn add_fees(wallet_handle: i32, inputs: Inputs, outputs: Outputs, extra: Option<Extra>, request_json_map: SerdeMap, cb: Box<Fn(Result<SerdeMap, ErrorCode>) + Send + Sync>) -> Result<(), ErrorCode> {
     let txn_serialized = serialize_signature(request_json_map.clone().into())?;
     let mut hasher = Sha256::default();
     hasher.input(txn_serialized.as_bytes());
diff --git a/libsovtoken/src/logic/build_payment.rs b/libsovtoken/src/logic/build_payment.rs
index 5a795d921..8a4453cf4 100644
--- a/libsovtoken/src/logic/build_payment.rs
+++ b/libsovtoken/src/logic/build_payment.rs
@@ -52,7 +52,10 @@ pub fn deserialize_inputs(
     debug!("Converted extra pointer to string >>> {:?}", extra);
 
     let extra: Option<Extra> = if let Some(extra_) = extra {
-        serde_json::from_str(&extra_).map_err(map_err_err!()).or(Err(ErrorCode::CommonInvalidStructure))?
+        match serde_json::from_str(&extra_) {
+            Ok(extra_obj) => Some(extra_obj),
+            Err(_) => Some(Extra(serde_json::Value::String(extra_)))
+        }
     } else { None };
     debug!("Deserialized extra >>> {:?}", secret!(&extra));
 
diff --git a/libsovtoken/src/logic/parsers/common.rs b/libsovtoken/src/logic/parsers/common.rs
index 4818cf72e..5d2c94347 100644
--- a/libsovtoken/src/logic/parsers/common.rs
+++ b/libsovtoken/src/logic/parsers/common.rs
@@ -26,7 +26,7 @@ pub enum ResponseOperations {
 
     used by [`ParsePaymentReply`], [`ParseResponseWithFeesReply`]
 */
-#[derive(Serialize, Deserialize, Debug, Eq, PartialEq)]
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
 #[serde(rename_all = "camelCase")]
 pub struct UTXO {
     pub recipient: String,
diff --git a/libsovtoken/src/logic/parsers/parse_payment_response.rs b/libsovtoken/src/logic/parsers/parse_payment_response.rs
index fea6edf55..e571b405e 100644
--- a/libsovtoken/src/logic/parsers/parse_payment_response.rs
+++ b/libsovtoken/src/logic/parsers/parse_payment_response.rs
@@ -10,12 +10,13 @@ use logic::parsers::common::{ResponseOperations,
                              TransactionMetaData,
                              RequireSignature};
 use logic::parsers::error_code_parser;
-use logic::type_aliases::{ProtocolVersion};
+use logic::type_aliases::ProtocolVersion;
+use logic::xfer_payload::Extra;
 
 /**
     for parse_payment_response_handler input resp_json
 */
-#[derive(Serialize, Deserialize, Debug, Eq, PartialEq)]
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
 #[serde(rename_all = "camelCase")]
 pub struct ParsePaymentResponse {
     pub op: ResponseOperations,
@@ -27,7 +28,7 @@ pub struct ParsePaymentResponse {
 /**
     The nested type named "result in ParsePaymentResponse
 */
-#[derive(Serialize, Deserialize, Debug, Eq, PartialEq)]
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
 #[serde(rename_all = "camelCase")]
 pub struct ParsePaymentResponseResult {
     pub txn: Transaction,
@@ -42,7 +43,7 @@ pub struct ParsePaymentResponseResult {
 /**
     the nested type "tnx" in ParsePaymentResponseResult
 */
-#[derive(Serialize, Deserialize, Debug, Eq, PartialEq)]
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
 #[serde(rename_all = "camelCase")]
 pub struct Transaction {
     #[serde(rename = "type")]
@@ -56,10 +57,10 @@ pub struct Transaction {
 /**
    the nested type "data" in Transaction
 */
-#[derive(Serialize, Deserialize, Debug, Eq, PartialEq)]
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
 #[serde(rename_all = "camelCase")]
 pub struct TransactionData {
-    pub extra: Option<String>,
+    pub extra: Option<Extra>,
     pub inputs: Inputs,
     pub outputs: Outputs,
 }
@@ -89,15 +90,16 @@ pub type ParsePaymentReply = Vec<UTXO>;
 pub fn from_response(base: ParsePaymentResponse) -> Result<ParsePaymentReply, ErrorCode> {
     match base.op {
         ResponseOperations::REPLY => {
-            let result = base.result.ok_or(ErrorCode::CommonInvalidStructure)?;
+            let result: ParsePaymentResponseResult = base.result.ok_or(ErrorCode::CommonInvalidStructure)?;
+            let extra = result.txn.data.extra.map(|extra|extra.to_string()).unwrap_or_default();
             let mut utxos: Vec<UTXO> = vec![];
             for unspent_output in result.txn.data.outputs {
                 let address = unspent_output.recipient;
-                let amount  = unspent_output.amount;
+                let amount = unspent_output.amount;
                 let qualified_address: String = add_qualifer_to_address(&address);
                 let seq_no: u64 = result.tnx_meta_data.seq_no;
                 let txo = (TXO { address: qualified_address.to_string(), seq_no }).to_libindy_string()?;
-                let utxo: UTXO = UTXO { recipient: qualified_address, receipt: txo, amount, extra: "".to_string() };
+                let utxo: UTXO = UTXO { recipient: qualified_address, receipt: txo, amount, extra: extra.clone() };
 
                 utxos.push(utxo);
             }
diff --git a/libsovtoken/src/logic/parsers/parse_verify.rs b/libsovtoken/src/logic/parsers/parse_verify.rs
index 064c45b34..7c6bc18e7 100644
--- a/libsovtoken/src/logic/parsers/parse_verify.rs
+++ b/libsovtoken/src/logic/parsers/parse_verify.rs
@@ -4,6 +4,7 @@ use logic::type_aliases::ProtocolVersion;
 use logic::parsers::common::ResponseOperations;
 use logic::output::Outputs;
 use logic::input::Inputs;
+use logic::xfer_payload::Extra;
 use ErrorCode;
 use logic::parsers::common::UTXO;
 use logic::parsers::common::TXO;
@@ -52,7 +53,7 @@ pub struct ParseVerifyResponseResultDataTxn {
 pub struct ParseVerifyResponseResultDataTxnData {
     pub outputs: Option<Outputs>,
     pub inputs: Option<Inputs>,
-    pub extra: Option<String>
+    pub extra: Option<Extra>
 }
 
 #[derive(Serialize, Deserialize, Debug)]
@@ -84,7 +85,8 @@ fn parse_verify(resp: &str) -> Result<VerifyResult, ErrorCode> {
 
     let mut sources: Vec<String> = vec![];
     let mut receipts: Vec<UTXO> = vec![];
-    let extra = data.extra;
+
+    let extra = data.extra.map(|extra|extra.to_string());
 
     if let Some(inputs) = data.inputs {
         for input in inputs {
@@ -100,7 +102,7 @@ fn parse_verify(resp: &str) -> Result<VerifyResult, ErrorCode> {
                 recipient: address.clone(),
                 receipt: TXO { address, seq_no }.to_libindy_string()?,
                 amount: output.amount,
-                extra: extra.as_ref().unwrap_or(&"".to_string()).to_string(),
+                extra: extra.clone().unwrap_or_default(),
             })
         }
     }
@@ -108,7 +110,7 @@ fn parse_verify(resp: &str) -> Result<VerifyResult, ErrorCode> {
     Ok(VerifyResult {
         sources: Some(sources),
         receipts: Some(receipts),
-        extra,
+        extra: extra.clone(),
     })
 }
 
diff --git a/libsovtoken/src/logic/xfer_payload.rs b/libsovtoken/src/logic/xfer_payload.rs
index 52011fef3..f8bd9a2b2 100644
--- a/libsovtoken/src/logic/xfer_payload.rs
+++ b/libsovtoken/src/logic/xfer_payload.rs
@@ -63,7 +63,18 @@ pub struct XferPayload {
     pub signatures: Option<Vec<String>>
 }
 
-pub type Extra = serde_json::Value;
+#[derive(Debug, Deserialize, Serialize, PartialEq, Clone)]
+pub struct Extra(pub serde_json::Value);
+
+impl ::std::string::ToString for Extra{
+    fn to_string(&self) -> String {
+        match self.0 {
+            ::serde_json::Value::Object(ref extra_obj) => json!(extra_obj).to_string(),
+            serde_json::Value::String(ref extra_str) => extra_str.to_string(),
+            _ => String::default()
+        }
+    }
+}
 
 unsafe impl Send for XferPayload {}
 
@@ -116,7 +127,7 @@ impl XferPayload {
 
         debug!("Indicator stripped from inputs");
 
-        let (extra, taa_acceptance) = extract_taa_acceptance_from_extra(self.extra.clone())?;
+        let (extra, taa_acceptance) = extract_taa_acceptance_from_extra(self.extra)?;
         self.extra = extra;
 
         XferPayload::sign_inputs(crypto_api, wallet_handle, &self.inputs.clone(), &self.outputs.clone(), txn_digest, &self.extra.clone(), &taa_acceptance.clone(), Box::new(move |signatures| {
diff --git a/libsovtoken/src/utils/txn_author_agreement.rs b/libsovtoken/src/utils/txn_author_agreement.rs
index 5a80dd1cc..b5ad3ed22 100644
--- a/libsovtoken/src/utils/txn_author_agreement.rs
+++ b/libsovtoken/src/utils/txn_author_agreement.rs
@@ -1,15 +1,16 @@
 use serde_json;
 use ErrorCode;
+use logic::xfer_payload::Extra;
 
 pub type TaaAcceptance = serde_json::Value;
 
 const META_FIELD_NAME: &str = "taaAcceptance";
 
-pub fn extract_taa_acceptance_from_extra(extra: Option<serde_json::Value>) -> Result<(Option<serde_json::Value>, Option<TaaAcceptance>), ErrorCode> {
+pub fn extract_taa_acceptance_from_extra(extra: Option<Extra>) -> Result<(Option<Extra>, Option<TaaAcceptance>), ErrorCode> {
     match extra {
-        Some(serde_json::Value::Object(mut extra)) => {
+        Some(Extra(serde_json::Value::Object(mut extra))) => {
             let meta = extra.remove(META_FIELD_NAME);
-            let extra = if extra.is_empty() { None } else { Some(json!(extra)) };
+            let extra = if extra.is_empty() { None } else { Some(Extra(json!(extra))) };
             Ok((extra, meta))
         }
         Some(extra) => {
@@ -31,9 +32,9 @@ mod test {
             "time": 123456789,
         });
 
-        let extra = json!({
+        let extra = Extra(json!({
             "taaAcceptance": taa_acceptance.clone()
-        });
+        }));
 
         let expected_taa = taa_acceptance.clone();
 
@@ -50,12 +51,12 @@ mod test {
             "time": 123456789,
         });
 
-        let extra = json!({
+        let extra = Extra(json!({
             "data": "some data",
             "taaAcceptance": taa_acceptance.clone()
-        });
+        }));
 
-        let expected_extra = json!({"data": "some data"});
+        let expected_extra = Extra(json!({"data": "some data"}));
         let expected_taa = taa_acceptance.clone();
 
         let (extra, taa_acceptance) = extract_taa_acceptance_from_extra(Some(extra)).unwrap();
@@ -65,11 +66,11 @@ mod test {
 
     #[test]
     pub fn extract_taa_acceptance_from_extra_works_for_no_taa_acceptance() {
-        let extra = json!({
+        let extra = Extra(json!({
             "data": "some data",
-        });
+        }));
 
-        let expected_extra = json!({"data": "some data"});
+        let expected_extra = Extra(json!({"data": "some data"}));
 
         let (extra, taa_acceptance) = extract_taa_acceptance_from_extra(Some(extra)).unwrap();
         assert_eq!(expected_extra, extra.unwrap());
diff --git a/libsovtoken/tests/build_payment_req_handler_test.rs b/libsovtoken/tests/build_payment_req_handler_test.rs
index 971f29775..5744827db 100644
--- a/libsovtoken/tests/build_payment_req_handler_test.rs
+++ b/libsovtoken/tests/build_payment_req_handler_test.rs
@@ -90,8 +90,8 @@ fn generate_payment_addresses(wallet: &Wallet) -> (Vec<String>, Vec<String>) {
 }
 
 fn get_resp_for_payment_req(pool_handle: i32, wallet_handle: i32, did: &str,
-                            inputs: &str, outputs: &str) -> Result<String, ErrorCode> {
-    let req = build_payment_req(wallet_handle, did, inputs, outputs, None).unwrap();
+                            inputs: &str, outputs: &str, extra: Option<String>) -> Result<String, ErrorCode> {
+    let req = build_payment_req(wallet_handle, did, inputs, outputs, extra).unwrap();
     let res = indy::ledger::submit_request(pool_handle, &req).wait().unwrap();
     parse_payment_response(&res)
 }
@@ -316,7 +316,7 @@ pub fn build_and_submit_payment_req() {
             "amount": 10
         }
     ]).to_string();
-    let res = get_resp_for_payment_req(pool_handle, wallet.handle, dids[0], &inputs, &outputs).unwrap();
+    let res = get_resp_for_payment_req(pool_handle, wallet.handle, dids[0], &inputs, &outputs, None).unwrap();
 
     let res_parsed: serde_json::Value = serde_json::from_str(&res).unwrap();
     let utxos = res_parsed.as_array().unwrap();
@@ -373,7 +373,7 @@ pub fn build_and_submit_payment_req_incorrect_funds() {
         }
     ]).to_string();
     let res = get_resp_for_payment_req(pool_handle, wallet.handle, dids[0],
-                                       &inputs, &outputs_1).unwrap_err();
+                                       &inputs, &outputs_1, None).unwrap_err();
     assert_eq!(res, ErrorCode::PaymentInsufficientFundsError);
 
     let outputs_2 = json!([
@@ -387,7 +387,7 @@ pub fn build_and_submit_payment_req_incorrect_funds() {
         }
     ]).to_string();
     let res = get_resp_for_payment_req(pool_handle, wallet.handle, dids[0],
-                                       &inputs, &outputs_2).unwrap_err();
+                                       &inputs, &outputs_2, None).unwrap_err();
     assert_eq!(res, ErrorCode::PaymentExtraFundsError);
 }
 
@@ -415,7 +415,7 @@ pub fn build_and_submit_payment_req_with_spent_utxo() {
             "amount": 10
         }
     ]).to_string();
-    get_resp_for_payment_req(pool_handle, wallet.handle, dids[0], &inputs, &outputs).unwrap();
+    get_resp_for_payment_req(pool_handle, wallet.handle, dids[0], &inputs, &outputs, None).unwrap();
 
     //lets try to spend spent utxo while there are enough funds on the unspent one
     let inputs = json!([utxo_2, utxo]).to_string();
@@ -423,7 +423,7 @@ pub fn build_and_submit_payment_req_with_spent_utxo() {
         "recipient": addresses[2],
         "amount": 20
     }]).to_string();
-    let err = get_resp_for_payment_req(pool_handle, wallet.handle, dids[0], &inputs, &outputs).unwrap_err();
+    let err = get_resp_for_payment_req(pool_handle, wallet.handle, dids[0], &inputs, &outputs, None).unwrap_err();
     assert_eq!(err, ErrorCode::PaymentSourceDoesNotExistError);
 
     //utxo should stay unspent!
@@ -614,4 +614,48 @@ pub fn build_payment_req_with_taa_acceptance_and_additional_extra() {
     assert_eq!(req_parsed["taaAcceptance"], taa_acceptance);
 
     assert_eq!(expected_operation, req_parsed["operation"]);
+}
+
+#[test]
+pub fn build_and_submit_payment_req_for_extra() {
+    let wallet = Wallet::new();
+    let setup = Setup::new(&wallet, SetupConfig {
+        num_addresses: 1,
+        num_trustees: 4,
+        num_users: 0,
+        mint_tokens: Some(vec![20]),
+        fees: None,
+    });
+    let payment_addresses = &setup.addresses;
+    let pool_handle = setup.pool_handle;
+    let dids = setup.trustees.dids();
+
+    for extra in ["some extra_json data as string", r#"{"data":"some extra data as string"}"#].iter()
+    {
+        let utxo = utils::payment::get_utxo::get_first_utxo_txo_for_payment_address(&wallet, pool_handle, dids[0], &payment_addresses[0]);
+
+        let inputs = json!([utxo]).to_string();
+        let outputs = json!([
+        {
+            "recipient": payment_addresses[0],
+            "amount": 20
+        }
+        ]).to_string();
+
+        let res = get_resp_for_payment_req(pool_handle, wallet.handle, dids[0], &inputs, &outputs, Some(extra.to_string())).unwrap();
+        let res_parsed: serde_json::Value = serde_json::from_str(&res).unwrap();
+        let utxos = res_parsed.as_array().unwrap();
+        assert_eq!(utxos.len(), 1);
+        assert_eq!(*extra, utxos[0].clone()["extra"].as_str().unwrap());
+
+        let value = utxos.get(0).unwrap().as_object().unwrap();
+        let r_1 = value.get("receipt").unwrap().as_str().unwrap();
+        assert_eq!(value.get("amount").unwrap().as_i64().unwrap(), 20);
+
+        let (req, _) = indy::payments::build_verify_payment_req(wallet.handle, None, &r_1).wait().unwrap();
+        let res = indy::ledger::submit_request(pool_handle, &req).wait().unwrap();
+        let res = indy::payments::parse_verify_payment_response("sov", &res).wait().unwrap();
+        let res_parsed: serde_json::Value = serde_json::from_str(&res).unwrap();
+        assert_eq!(*extra, res_parsed["extra"].as_str().unwrap());
+    }
 }
\ No newline at end of file