diff --git a/vms/platformvm/service_test.go b/vms/platformvm/service_test.go
index ccda2c6c054b..97d7d0466894 100644
--- a/vms/platformvm/service_test.go
+++ b/vms/platformvm/service_test.go
@@ -377,7 +377,7 @@ func TestGetBalance(t *testing.T) {
 
 	feeCalculator, err := state.PickFeeCalculator(&service.vm.Config, service.vm.state)
 	require.NoError(err)
-	createSubnetFee, err := feeCalculator.CalculateFee(&txs.Tx{Unsigned: &txs.CreateSubnetTx{}})
+	createSubnetFee, err := feeCalculator.CalculateFee(&txs.CreateSubnetTx{})
 	require.NoError(err)
 
 	// Ensure GetStake is correct for each of the genesis validators
diff --git a/vms/platformvm/txs/executor/staker_tx_verification.go b/vms/platformvm/txs/executor/staker_tx_verification.go
index 9b9876e3ccca..b84ad9d6e2b1 100644
--- a/vms/platformvm/txs/executor/staker_tx_verification.go
+++ b/vms/platformvm/txs/executor/staker_tx_verification.go
@@ -165,7 +165,7 @@ func verifyAddValidatorTx(
 	}
 
 	// Verify the flowcheck
-	fee, err := feeCalculator.CalculateFee(sTx)
+	fee, err := feeCalculator.CalculateFee(tx)
 	if err != nil {
 		return nil, err
 	}
@@ -258,7 +258,7 @@ func verifyAddSubnetValidatorTx(
 	}
 
 	// Verify the flowcheck
-	fee, err := feeCalculator.CalculateFee(sTx)
+	fee, err := feeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
@@ -338,7 +338,7 @@ func verifyRemoveSubnetValidatorTx(
 	}
 
 	// Verify the flowcheck
-	fee, err := feeCalculator.CalculateFee(sTx)
+	fee, err := feeCalculator.CalculateFee(tx)
 	if err != nil {
 		return nil, false, err
 	}
@@ -458,7 +458,7 @@ func verifyAddDelegatorTx(
 	}
 
 	// Verify the flowcheck
-	fee, err := feeCalculator.CalculateFee(sTx)
+	fee, err := feeCalculator.CalculateFee(tx)
 	if err != nil {
 		return nil, err
 	}
@@ -580,7 +580,7 @@ func verifyAddPermissionlessValidatorTx(
 	copy(outs[len(tx.Outs):], tx.StakeOuts)
 
 	// Verify the flowcheck
-	fee, err := feeCalculator.CalculateFee(sTx)
+	fee, err := feeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
@@ -727,7 +727,7 @@ func verifyAddPermissionlessDelegatorTx(
 	}
 
 	// Verify the flowcheck
-	fee, err := feeCalculator.CalculateFee(sTx)
+	fee, err := feeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
@@ -787,7 +787,7 @@ func verifyTransferSubnetOwnershipTx(
 	}
 
 	// Verify the flowcheck
-	fee, err := feeCalculator.CalculateFee(sTx)
+	fee, err := feeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
diff --git a/vms/platformvm/txs/executor/standard_tx_executor.go b/vms/platformvm/txs/executor/standard_tx_executor.go
index 9ec40e506a1b..58eeb71e1fea 100644
--- a/vms/platformvm/txs/executor/standard_tx_executor.go
+++ b/vms/platformvm/txs/executor/standard_tx_executor.go
@@ -70,7 +70,7 @@ func (e *StandardTxExecutor) CreateChainTx(tx *txs.CreateChainTx) error {
 	}
 
 	// Verify the flowcheck
-	fee, err := e.FeeCalculator.CalculateFee(e.Tx)
+	fee, err := e.FeeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
@@ -119,7 +119,7 @@ func (e *StandardTxExecutor) CreateSubnetTx(tx *txs.CreateSubnetTx) error {
 	}
 
 	// Verify the flowcheck
-	fee, err := e.FeeCalculator.CalculateFee(e.Tx)
+	fee, err := e.FeeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
@@ -203,7 +203,7 @@ func (e *StandardTxExecutor) ImportTx(tx *txs.ImportTx) error {
 		copy(ins[len(tx.Ins):], tx.ImportedInputs)
 
 		// Verify the flowcheck
-		fee, err := e.FeeCalculator.CalculateFee(e.Tx)
+		fee, err := e.FeeCalculator.CalculateFee(tx)
 		if err != nil {
 			return err
 		}
@@ -263,7 +263,7 @@ func (e *StandardTxExecutor) ExportTx(tx *txs.ExportTx) error {
 	}
 
 	// Verify the flowcheck
-	fee, err := e.FeeCalculator.CalculateFee(e.Tx)
+	fee, err := e.FeeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
@@ -457,7 +457,7 @@ func (e *StandardTxExecutor) TransformSubnetTx(tx *txs.TransformSubnetTx) error
 	}
 
 	// Verify the flowcheck
-	fee, err := e.FeeCalculator.CalculateFee(e.Tx)
+	fee, err := e.FeeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
@@ -588,7 +588,7 @@ func (e *StandardTxExecutor) BaseTx(tx *txs.BaseTx) error {
 	}
 
 	// Verify the flowcheck
-	fee, err := e.FeeCalculator.CalculateFee(e.Tx)
+	fee, err := e.FeeCalculator.CalculateFee(tx)
 	if err != nil {
 		return err
 	}
diff --git a/vms/platformvm/txs/fee/calculator.go b/vms/platformvm/txs/fee/calculator.go
index f33db9c1520f..511bb34ed3c2 100644
--- a/vms/platformvm/txs/fee/calculator.go
+++ b/vms/platformvm/txs/fee/calculator.go
@@ -7,5 +7,5 @@ import "github.com/ava-labs/avalanchego/vms/platformvm/txs"
 
 // Calculator is the interfaces that any fee Calculator must implement
 type Calculator interface {
-	CalculateFee(tx *txs.Tx) (uint64, error)
+	CalculateFee(tx txs.UnsignedTx) (uint64, error)
 }
diff --git a/vms/platformvm/txs/fee/calculator_test.go b/vms/platformvm/txs/fee/calculator_test.go
index 454072e9df8d..656b9ca0889f 100644
--- a/vms/platformvm/txs/fee/calculator_test.go
+++ b/vms/platformvm/txs/fee/calculator_test.go
@@ -187,9 +187,9 @@ func TestTxFees(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			uTx := tt.unsignedTx()
+			tx := tt.unsignedTx()
 			fc := NewStaticCalculator(feeTestsDefaultCfg, upgrades, tt.chainTime)
-			fee, err := fc.CalculateFee(&txs.Tx{Unsigned: uTx})
+			fee, err := fc.CalculateFee(tx)
 			require.NoError(t, err)
 			require.Equal(t, tt.expected, fee)
 		})
diff --git a/vms/platformvm/txs/fee/static_calculator.go b/vms/platformvm/txs/fee/static_calculator.go
index 7bfb5cf799a0..6c1b535202f0 100644
--- a/vms/platformvm/txs/fee/static_calculator.go
+++ b/vms/platformvm/txs/fee/static_calculator.go
@@ -13,7 +13,7 @@ import (
 
 var (
 	_ Calculator  = (*staticCalculator)(nil)
-	_ txs.Visitor = (*staticCalculator)(nil)
+	_ txs.Visitor = (*staticVisitor)(nil)
 )
 
 func NewStaticCalculator(
@@ -22,115 +22,125 @@ func NewStaticCalculator(
 	chainTime time.Time,
 ) Calculator {
 	return &staticCalculator{
-		upgrades:  upgradeTimes,
-		staticCfg: config,
-		time:      chainTime,
+		upgrades: upgradeTimes,
+		config:   config,
+		time:     chainTime,
 	}
 }
 
 type staticCalculator struct {
-	// inputs
-	staticCfg StaticConfig
-	upgrades  upgrade.Config
-	time      time.Time
+	config   StaticConfig
+	upgrades upgrade.Config
+	time     time.Time
+}
 
-	// outputs of visitor execution
-	fee uint64
+func (c *staticCalculator) CalculateFee(tx txs.UnsignedTx) (uint64, error) {
+	v := staticVisitor{
+		config:   c.config,
+		upgrades: c.upgrades,
+		time:     c.time,
+	}
+	err := tx.Visit(&v)
+	return v.fee, err
 }
 
-func (c *staticCalculator) CalculateFee(tx *txs.Tx) (uint64, error) {
-	c.fee = 0 // zero fee among different calculateFee invocations (unlike gas which gets cumulated)
-	err := tx.Unsigned.Visit(c)
-	return c.fee, err
+type staticVisitor struct {
+	// inputs
+	config   StaticConfig
+	upgrades upgrade.Config
+	time     time.Time
+
+	// outputs
+	fee uint64
 }
 
-func (c *staticCalculator) AddValidatorTx(*txs.AddValidatorTx) error {
-	c.fee = c.staticCfg.AddPrimaryNetworkValidatorFee
+func (c *staticVisitor) AddValidatorTx(*txs.AddValidatorTx) error {
+	c.fee = c.config.AddPrimaryNetworkValidatorFee
 	return nil
 }
 
-func (c *staticCalculator) AddSubnetValidatorTx(*txs.AddSubnetValidatorTx) error {
-	c.fee = c.staticCfg.AddSubnetValidatorFee
+func (c *staticVisitor) AddSubnetValidatorTx(*txs.AddSubnetValidatorTx) error {
+	c.fee = c.config.AddSubnetValidatorFee
 	return nil
 }
 
-func (c *staticCalculator) AddDelegatorTx(*txs.AddDelegatorTx) error {
-	c.fee = c.staticCfg.AddPrimaryNetworkDelegatorFee
+func (c *staticVisitor) AddDelegatorTx(*txs.AddDelegatorTx) error {
+	c.fee = c.config.AddPrimaryNetworkDelegatorFee
 	return nil
 }
 
-func (c *staticCalculator) CreateChainTx(*txs.CreateChainTx) error {
+func (c *staticVisitor) CreateChainTx(*txs.CreateChainTx) error {
 	if c.upgrades.IsApricotPhase3Activated(c.time) {
-		c.fee = c.staticCfg.CreateBlockchainTxFee
+		c.fee = c.config.CreateBlockchainTxFee
 	} else {
-		c.fee = c.staticCfg.CreateAssetTxFee
+		c.fee = c.config.CreateAssetTxFee
 	}
 	return nil
 }
 
-func (c *staticCalculator) CreateSubnetTx(*txs.CreateSubnetTx) error {
+func (c *staticVisitor) CreateSubnetTx(*txs.CreateSubnetTx) error {
 	if c.upgrades.IsApricotPhase3Activated(c.time) {
-		c.fee = c.staticCfg.CreateSubnetTxFee
+		c.fee = c.config.CreateSubnetTxFee
 	} else {
-		c.fee = c.staticCfg.CreateAssetTxFee
+		c.fee = c.config.CreateAssetTxFee
 	}
 	return nil
 }
 
-func (c *staticCalculator) AdvanceTimeTx(*txs.AdvanceTimeTx) error {
+func (c *staticVisitor) AdvanceTimeTx(*txs.AdvanceTimeTx) error {
 	c.fee = 0 // no fees
 	return nil
 }
 
-func (c *staticCalculator) RewardValidatorTx(*txs.RewardValidatorTx) error {
+func (c *staticVisitor) RewardValidatorTx(*txs.RewardValidatorTx) error {
 	c.fee = 0 // no fees
 	return nil
 }
 
-func (c *staticCalculator) RemoveSubnetValidatorTx(*txs.RemoveSubnetValidatorTx) error {
-	c.fee = c.staticCfg.TxFee
+func (c *staticVisitor) RemoveSubnetValidatorTx(*txs.RemoveSubnetValidatorTx) error {
+	c.fee = c.config.TxFee
 	return nil
 }
 
-func (c *staticCalculator) TransformSubnetTx(*txs.TransformSubnetTx) error {
-	c.fee = c.staticCfg.TransformSubnetTxFee
+func (c *staticVisitor) TransformSubnetTx(*txs.TransformSubnetTx) error {
+	c.fee = c.config.TransformSubnetTxFee
 	return nil
 }
 
-func (c *staticCalculator) TransferSubnetOwnershipTx(*txs.TransferSubnetOwnershipTx) error {
-	c.fee = c.staticCfg.TxFee
+func (c *staticVisitor) TransferSubnetOwnershipTx(*txs.TransferSubnetOwnershipTx) error {
+	c.fee = c.config.TxFee
 	return nil
 }
 
-func (c *staticCalculator) AddPermissionlessValidatorTx(tx *txs.AddPermissionlessValidatorTx) error {
+func (c *staticVisitor) AddPermissionlessValidatorTx(tx *txs.AddPermissionlessValidatorTx) error {
 	if tx.Subnet != constants.PrimaryNetworkID {
-		c.fee = c.staticCfg.AddSubnetValidatorFee
+		c.fee = c.config.AddSubnetValidatorFee
 	} else {
-		c.fee = c.staticCfg.AddPrimaryNetworkValidatorFee
+		c.fee = c.config.AddPrimaryNetworkValidatorFee
 	}
 	return nil
 }
 
-func (c *staticCalculator) AddPermissionlessDelegatorTx(tx *txs.AddPermissionlessDelegatorTx) error {
+func (c *staticVisitor) AddPermissionlessDelegatorTx(tx *txs.AddPermissionlessDelegatorTx) error {
 	if tx.Subnet != constants.PrimaryNetworkID {
-		c.fee = c.staticCfg.AddSubnetDelegatorFee
+		c.fee = c.config.AddSubnetDelegatorFee
 	} else {
-		c.fee = c.staticCfg.AddPrimaryNetworkDelegatorFee
+		c.fee = c.config.AddPrimaryNetworkDelegatorFee
 	}
 	return nil
 }
 
-func (c *staticCalculator) BaseTx(*txs.BaseTx) error {
-	c.fee = c.staticCfg.TxFee
+func (c *staticVisitor) BaseTx(*txs.BaseTx) error {
+	c.fee = c.config.TxFee
 	return nil
 }
 
-func (c *staticCalculator) ImportTx(*txs.ImportTx) error {
-	c.fee = c.staticCfg.TxFee
+func (c *staticVisitor) ImportTx(*txs.ImportTx) error {
+	c.fee = c.config.TxFee
 	return nil
 }
 
-func (c *staticCalculator) ExportTx(*txs.ExportTx) error {
-	c.fee = c.staticCfg.TxFee
+func (c *staticVisitor) ExportTx(*txs.ExportTx) error {
+	c.fee = c.config.TxFee
 	return nil
 }
diff --git a/vms/platformvm/txs/txstest/context.go b/vms/platformvm/txs/txstest/context.go
index fb8181f7e39c..80507c1a267d 100644
--- a/vms/platformvm/txs/txstest/context.go
+++ b/vms/platformvm/txs/txstest/context.go
@@ -20,8 +20,8 @@ func newContext(
 ) *builder.Context {
 	var (
 		feeCalculator      = fee.NewStaticCalculator(cfg.StaticFeeConfig, cfg.UpgradeConfig, timestamp)
-		createSubnetFee, _ = feeCalculator.CalculateFee(&txs.Tx{Unsigned: &txs.CreateSubnetTx{}})
-		createChainFee, _  = feeCalculator.CalculateFee(&txs.Tx{Unsigned: &txs.CreateChainTx{}})
+		createSubnetFee, _ = feeCalculator.CalculateFee(&txs.CreateSubnetTx{})
+		createChainFee, _  = feeCalculator.CalculateFee(&txs.CreateChainTx{})
 	)
 
 	return &builder.Context{