diff --git a/crates/model/src/order.rs b/crates/model/src/order.rs
index 6aa3e4b78b..89b0857885 100644
--- a/crates/model/src/order.rs
+++ b/crates/model/src/order.rs
@@ -676,8 +676,6 @@ pub struct OrderMetadata {
     #[serde_as(as = "HexOrDecimalU256")]
     pub executed_fee_amount: U256,
     #[serde_as(as = "HexOrDecimalU256")]
-    pub executed_surplus_fee: U256,
-    #[serde_as(as = "HexOrDecimalU256")]
     pub executed_fee: U256,
     pub executed_fee_token: H160,
     pub invalidated: bool,
@@ -1025,7 +1023,6 @@ mod tests {
             "validTo": 4294967295u32,
             "appData": "0x6000000000000000000000000000000000000000000000000000000000000007",
             "feeAmount": "115792089237316195423570985008687907853269984665640564039457584007913129639935",
-            "executedSurplusFee": "1",
             "executedFee": "1",
             "executedFeeToken": "0x000000000000000000000000000000000000000a",
             "fullFeeAmount": "115792089237316195423570985008687907853269984665640564039457584007913129639935",
@@ -1058,7 +1055,6 @@ mod tests {
                 executed_sell_amount: BigUint::from_bytes_be(&[5]),
                 executed_sell_amount_before_fees: 4.into(),
                 executed_fee_amount: 1.into(),
-                executed_surplus_fee: 1.into(),
                 executed_fee: 1.into(),
                 executed_fee_token: H160::from_low_u64_be(10),
                 invalidated: true,
diff --git a/crates/orderbook/openapi.yml b/crates/orderbook/openapi.yml
index aa4c2da3ac..a38353e8dd 100644
--- a/crates/orderbook/openapi.yml
+++ b/crates/orderbook/openapi.yml
@@ -947,11 +947,6 @@ components:
             on-chain. This data can be found in this object.
           allOf:
             - $ref: "#/components/schemas/OnchainOrderData"
-        executedSurplusFee:
-          description: Surplus fee that the limit order was executed with.
-          allOf:
-            - $ref: "#/components/schemas/BigUint"
-          nullable: false
         executedFee:
           description: Total fee charged for execution of the order. Contains network fee and protocol fees.
           allOf:
diff --git a/crates/orderbook/src/database/orders.rs b/crates/orderbook/src/database/orders.rs
index 51bce8a8c6..ca74886d9b 100644
--- a/crates/orderbook/src/database/orders.rs
+++ b/crates/orderbook/src/database/orders.rs
@@ -622,8 +622,6 @@ fn full_order_into_model_order(order: FullOrder) -> Result<Order> {
         )?,
         executed_fee_amount: big_decimal_to_u256(&order.sum_fee)
             .context("executed fee amount is not a valid u256")?,
-        executed_surplus_fee: big_decimal_to_u256(&order.executed_fee)
-            .context("executed fee is not a valid u256")?,
         executed_fee: big_decimal_to_u256(&order.executed_fee)
             .context("executed fee is not a valid u256")?,
         executed_fee_token: H160(order.executed_fee_token.0),
diff --git a/crates/shared/src/db_order_conversions.rs b/crates/shared/src/db_order_conversions.rs
index 44e2ae3320..429e0fedaa 100644
--- a/crates/shared/src/db_order_conversions.rs
+++ b/crates/shared/src/db_order_conversions.rs
@@ -90,8 +90,6 @@ pub fn full_order_into_model_order(order: database::orders::FullOrder) -> Result
         )?,
         executed_fee_amount: big_decimal_to_u256(&order.sum_fee)
             .context("executed fee amount is not a valid u256")?,
-        executed_surplus_fee: big_decimal_to_u256(&order.executed_fee)
-            .context("executed fee is not a valid u256")?,
         executed_fee: big_decimal_to_u256(&order.executed_fee)
             .context("executed fee is not a valid u256")?,
         executed_fee_token: H160(order.executed_fee_token.0),