diff --git a/packages/taiko-client/bindings/encoding/protocol_config.go b/packages/taiko-client/bindings/encoding/protocol_config.go
index bc6d45d3916..406d3ea36f6 100644
--- a/packages/taiko-client/bindings/encoding/protocol_config.go
+++ b/packages/taiko-client/bindings/encoding/protocol_config.go
@@ -22,6 +22,7 @@ var (
 		OntakeForkHeight:      2,
 		BaseFeeConfig: bindings.TaikoDataBaseFeeConfig{
 			AdjustmentQuotient:     8,
+			SharingPctg:            75,
 			GasIssuancePerSecond:   5_000_000,
 			MinGasExcess:           1_340_000_000,
 			MaxGasIssuancePerBlock: 600_000_000,
diff --git a/packages/taiko-client/driver/chain_syncer/blob/syncer_test.go b/packages/taiko-client/driver/chain_syncer/blob/syncer_test.go
index 2d5f35b0104..530e1943a7a 100644
--- a/packages/taiko-client/driver/chain_syncer/blob/syncer_test.go
+++ b/packages/taiko-client/driver/chain_syncer/blob/syncer_test.go
@@ -15,11 +15,13 @@ import (
 	"github.com/stretchr/testify/suite"
 
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/bindings"
+	"github.com/taikoxyz/taiko-mono/packages/taiko-client/bindings/encoding"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/bindings/metadata"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/driver/chain_syncer/beaconsync"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/driver/state"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/internal/testutils"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/internal/utils"
+	"github.com/taikoxyz/taiko-mono/packages/taiko-client/pkg/config"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/pkg/jwt"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/pkg/rpc"
 	"github.com/taikoxyz/taiko-mono/packages/taiko-client/proposer"
@@ -153,6 +155,7 @@ func (s *BlobSyncerTestSuite) TestTreasuryIncome() {
 	s.True(balanceAfter.Cmp(balance) > 0)
 
 	var hasNoneAnchorTxs bool
+	chainConfig := config.NewChainConfig(encoding.GetProtocolConfig(s.RPCClient.L2.ChainID.Uint64()))
 	for i := headBefore + 1; i <= headAfter; i++ {
 		block, err := s.RPCClient.L2.BlockByNumber(context.Background(), new(big.Int).SetUint64(i))
 		s.Nil(err)
@@ -169,8 +172,16 @@ func (s *BlobSyncerTestSuite) TestTreasuryIncome() {
 			s.Nil(err)
 
 			fee := new(big.Int).Mul(block.BaseFee(), new(big.Int).SetUint64(receipt.GasUsed))
-
-			balance = new(big.Int).Add(balance, fee)
+			if chainConfig.IsOntake(block.Number()) {
+				feeCoinbase := new(big.Int).Div(
+					new(big.Int).Mul(fee, new(big.Int).SetUint64(uint64(chainConfig.ProtocolConfigs.BaseFeeConfig.SharingPctg))),
+					new(big.Int).SetUint64(100),
+				)
+				feeTreasury := new(big.Int).Sub(fee, feeCoinbase)
+				balance = new(big.Int).Add(balance, feeTreasury)
+			} else {
+				balance = new(big.Int).Add(balance, fee)
+			}
 		}
 	}
 
diff --git a/packages/taiko-client/pkg/rpc/methods.go b/packages/taiko-client/pkg/rpc/methods.go
index e433c04e76a..12ee41ffb80 100644
--- a/packages/taiko-client/pkg/rpc/methods.go
+++ b/packages/taiko-client/pkg/rpc/methods.go
@@ -318,7 +318,7 @@ func (c *Client) CalculateBaseFee(
 			}
 		}
 		baseFeeInfo, err = c.TaikoL2.CalculateBaseFee(
-			&bind.CallOpts{Context: ctx},
+			&bind.CallOpts{BlockNumber: l2Head.Number, Context: ctx},
 			*baseFeeConfig,
 			uint64(time.Now().Unix())-l2Head.Time,
 			parentGasExcess,
@@ -329,7 +329,7 @@ func (c *Client) CalculateBaseFee(
 		}
 	} else {
 		baseFeeInfo, err = c.TaikoL2.GetBasefee(
-			&bind.CallOpts{Context: ctx},
+			&bind.CallOpts{BlockNumber: l2Head.Number, Context: ctx},
 			anchorBlockID.Uint64(),
 			uint32(l2Head.GasUsed), // #nosec G115
 		)