diff --git a/frame/ethereum/src/tests/eip1559.rs b/frame/ethereum/src/tests/eip1559.rs
index 03edf8414b..073ceb79fd 100644
--- a/frame/ethereum/src/tests/eip1559.rs
+++ b/frame/ethereum/src/tests/eip1559.rs
@@ -19,7 +19,7 @@
 
 use super::*;
 use evm::{ExitReason, ExitRevert, ExitSucceed};
-use fp_ethereum::ValidatedTransaction;
+use fp_ethereum::{TransactionData, ValidatedTransaction};
 use frame_support::{dispatch::DispatchClass, traits::Get, weights::Weight};
 use pallet_evm::{AddressMapping, GasWeightMapping};
 
@@ -585,3 +585,39 @@ fn proof_size_weight_limit_validation_works() {
 		);
 	});
 }
+
+#[test]
+fn proof_size_base_cost_should_keep_the_same_in_execution_and_estimate() {
+	let (pairs, mut ext) = new_test_ext(1);
+	let alice = &pairs[0];
+
+	ext.execute_with(|| {
+		let raw_tx = EIP1559UnsignedTransaction {
+			nonce: U256::zero(),
+			max_priority_fee_per_gas: U256::zero(),
+			max_fee_per_gas: U256::zero(),
+			gas_limit: U256::from(21_000),
+			action: ethereum::TransactionAction::Create,
+			value: U256::from(100),
+			input: vec![9; 100],
+		};
+
+		let tx_data: TransactionData = (&raw_tx.sign(&alice.private_key, Some(100))).into();
+		let estimate_tx_data = TransactionData::new(
+			raw_tx.action,
+			raw_tx.input,
+			raw_tx.nonce,
+			raw_tx.gas_limit,
+			None,
+			Some(raw_tx.max_fee_per_gas),
+			Some(raw_tx.max_priority_fee_per_gas),
+			raw_tx.value,
+			Some(100),
+			vec![],
+		);
+		assert_eq!(
+			estimate_tx_data.proof_size_base_cost(),
+			tx_data.proof_size_base_cost()
+		);
+	});
+}
diff --git a/frame/ethereum/src/tests/eip2930.rs b/frame/ethereum/src/tests/eip2930.rs
index 772823a878..7eb800bda1 100644
--- a/frame/ethereum/src/tests/eip2930.rs
+++ b/frame/ethereum/src/tests/eip2930.rs
@@ -19,7 +19,7 @@
 
 use super::*;
 use evm::{ExitReason, ExitRevert, ExitSucceed};
-use fp_ethereum::ValidatedTransaction;
+use fp_ethereum::{TransactionData, ValidatedTransaction};
 use frame_support::{
 	dispatch::{DispatchClass, GetDispatchInfo},
 	weights::Weight,
@@ -511,3 +511,38 @@ fn proof_size_weight_limit_validation_works() {
 		);
 	});
 }
+
+#[test]
+fn proof_size_base_cost_should_keep_the_same_in_execution_and_estimate() {
+	let (pairs, mut ext) = new_test_ext(1);
+	let alice = &pairs[0];
+
+	ext.execute_with(|| {
+		let raw_tx = EIP2930UnsignedTransaction {
+			nonce: U256::zero(),
+			gas_price: U256::zero(),
+			gas_limit: U256::from(21_000),
+			action: ethereum::TransactionAction::Create,
+			value: U256::from(100),
+			input: vec![9; 100],
+		};
+
+		let tx_data: TransactionData = (&raw_tx.sign(&alice.private_key, Some(100))).into();
+		let estimate_tx_data = TransactionData::new(
+			raw_tx.action,
+			raw_tx.input,
+			raw_tx.nonce,
+			raw_tx.gas_limit,
+			Some(raw_tx.gas_price),
+			None,
+			None,
+			raw_tx.value,
+			Some(100),
+			vec![],
+		);
+		assert_eq!(
+			estimate_tx_data.proof_size_base_cost(),
+			tx_data.proof_size_base_cost()
+		);
+	});
+}
diff --git a/frame/ethereum/src/tests/legacy.rs b/frame/ethereum/src/tests/legacy.rs
index 48532a33b0..4b630e78d3 100644
--- a/frame/ethereum/src/tests/legacy.rs
+++ b/frame/ethereum/src/tests/legacy.rs
@@ -19,7 +19,7 @@
 
 use super::*;
 use evm::{ExitReason, ExitRevert, ExitSucceed};
-use fp_ethereum::ValidatedTransaction;
+use fp_ethereum::{TransactionData, ValidatedTransaction};
 use frame_support::{
 	dispatch::{DispatchClass, GetDispatchInfo},
 	weights::Weight,
@@ -511,3 +511,38 @@ fn proof_size_weight_limit_validation_works() {
 		);
 	});
 }
+
+#[test]
+fn proof_size_base_cost_should_keep_the_same_in_execution_and_estimate() {
+	let (pairs, mut ext) = new_test_ext(1);
+	let alice = &pairs[0];
+
+	ext.execute_with(|| {
+		let raw_tx = LegacyUnsignedTransaction {
+			nonce: U256::zero(),
+			gas_price: U256::zero(),
+			gas_limit: U256::from(21_000),
+			action: ethereum::TransactionAction::Create,
+			value: U256::from(100),
+			input: vec![9; 100],
+		};
+
+		let tx_data: TransactionData = (&raw_tx.sign(&alice.private_key)).into();
+		let estimate_tx_data = TransactionData::new(
+			raw_tx.action,
+			raw_tx.input,
+			raw_tx.nonce,
+			raw_tx.gas_limit,
+			Some(raw_tx.gas_price),
+			None,
+			None,
+			raw_tx.value,
+			Some(100),
+			vec![],
+		);
+		assert_eq!(
+			estimate_tx_data.proof_size_base_cost(),
+			tx_data.proof_size_base_cost()
+		);
+	});
+}