diff --git a/app/app.go b/app/app.go
index 7f1e9193..03eb4680 100644
--- a/app/app.go
+++ b/app/app.go
@@ -591,6 +591,7 @@ func NewWasmApp(
 		app.BankKeeper,
 		app.StakingKeeper,
 		distrkeeper.NewQuerier(app.DistrKeeper),
+		app.IBCFeeKeeper, // ISC4 Wrapper: fee IBC middleware
 		app.IBCKeeper.ChannelKeeper,
 		&app.IBCKeeper.PortKeeper,
 		scopedWasmKeeper,
diff --git a/x/wasm/ioutils/ioutil_test.go b/x/wasm/ioutils/ioutil_test.go
index 668c94ae..3cd1b5c2 100644
--- a/x/wasm/ioutils/ioutil_test.go
+++ b/x/wasm/ioutils/ioutil_test.go
@@ -4,11 +4,12 @@ import (
 	"bytes"
 	"compress/gzip"
 	"errors"
-	"github.com/cometbft/cometbft/libs/rand"
 	"io"
 	"os"
 	"testing"
 
+	"github.com/cometbft/cometbft/libs/rand"
+
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
diff --git a/x/wasm/keeper/genesis_test.go b/x/wasm/keeper/genesis_test.go
index d5722fd8..f312af05 100644
--- a/x/wasm/keeper/genesis_test.go
+++ b/x/wasm/keeper/genesis_test.go
@@ -664,6 +664,7 @@ func setupKeeper(t *testing.T) (*Keeper, sdk.Context) {
 		nil,
 		nil,
 		nil,
+		nil,
 		tempDir,
 		wasmConfig,
 		AvailableCapabilities,
diff --git a/x/wasm/keeper/handler_plugin.go b/x/wasm/keeper/handler_plugin.go
index be608ed5..3e38e09f 100644
--- a/x/wasm/keeper/handler_plugin.go
+++ b/x/wasm/keeper/handler_plugin.go
@@ -34,8 +34,10 @@ type SDKMessageHandler struct {
 	encoders msgEncoder
 }
 
+// NewDefaultMessageHandler constructor
 func NewDefaultMessageHandler(
 	router MessageRouter,
+	ics4Wrapper types.ICS4Wrapper,
 	channelKeeper types.ChannelKeeper,
 	capabilityKeeper types.CapabilityKeeper,
 	bankKeeper types.Burner,
@@ -49,7 +51,7 @@ func NewDefaultMessageHandler(
 	}
 	return NewMessageHandlerChain(
 		NewSDKMessageHandler(router, encoders),
-		NewIBCRawPacketHandler(channelKeeper, capabilityKeeper),
+		NewIBCRawPacketHandler(ics4Wrapper, channelKeeper, capabilityKeeper),
 		NewBurnCoinMessageHandler(bankKeeper),
 	)
 }
@@ -142,14 +144,20 @@ func (m MessageHandlerChain) DispatchMsg(ctx sdk.Context, contractAddr sdk.AccAd
 	return nil, nil, errorsmod.Wrap(types.ErrUnknownMsg, "no handler found")
 }
 
-// IBCRawPacketHandler handels IBC.SendPacket messages which are published to an IBC channel.
+// IBCRawPacketHandler handles IBC.SendPacket messages which are published to an IBC channel.
 type IBCRawPacketHandler struct {
+	ics4Wrapper      types.ICS4Wrapper
 	channelKeeper    types.ChannelKeeper
 	capabilityKeeper types.CapabilityKeeper
 }
 
-func NewIBCRawPacketHandler(chk types.ChannelKeeper, cak types.CapabilityKeeper) IBCRawPacketHandler {
-	return IBCRawPacketHandler{channelKeeper: chk, capabilityKeeper: cak}
+// NewIBCRawPacketHandler constructor
+func NewIBCRawPacketHandler(ics4Wrapper types.ICS4Wrapper, channelKeeper types.ChannelKeeper, capabilityKeeper types.CapabilityKeeper) IBCRawPacketHandler {
+	return IBCRawPacketHandler{
+		ics4Wrapper:      ics4Wrapper,
+		channelKeeper:    channelKeeper,
+		capabilityKeeper: capabilityKeeper,
+	}
 }
 
 // DispatchMsg publishes a raw IBC packet onto the channel.
@@ -169,7 +177,7 @@ func (h IBCRawPacketHandler) DispatchMsg(ctx sdk.Context, _ sdk.AccAddress, cont
 	if !ok {
 		return nil, nil, errorsmod.Wrap(channeltypes.ErrChannelCapabilityNotFound, "module does not own channel capability")
 	}
-	seq, err := h.channelKeeper.SendPacket(ctx, channelCap, contractIBCPortID, contractIBCChannelID, ConvertWasmIBCTimeoutHeightToCosmosHeight(msg.IBC.SendPacket.Timeout.Block), msg.IBC.SendPacket.Timeout.Timestamp, msg.IBC.SendPacket.Data)
+	seq, err := h.ics4Wrapper.SendPacket(ctx, channelCap, contractIBCPortID, contractIBCChannelID, ConvertWasmIBCTimeoutHeightToCosmosHeight(msg.IBC.SendPacket.Timeout.Block), msg.IBC.SendPacket.Timeout.Timestamp, msg.IBC.SendPacket.Data)
 	if err != nil {
 		return nil, nil, errorsmod.Wrap(err, "channel")
 	}
diff --git a/x/wasm/keeper/handler_plugin_test.go b/x/wasm/keeper/handler_plugin_test.go
index fbfb13a5..beea6daf 100644
--- a/x/wasm/keeper/handler_plugin_test.go
+++ b/x/wasm/keeper/handler_plugin_test.go
@@ -5,10 +5,10 @@ import (
 	"testing"
 
 	errorsmod "cosmossdk.io/errors"
-	"github.com/cometbft/cometbft/libs/log"
 
 	wasmvm "github.com/CosmWasm/wasmvm"
 	wasmvmtypes "github.com/CosmWasm/wasmvm/types"
+	"github.com/cometbft/cometbft/libs/log"
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
@@ -236,15 +236,7 @@ func TestIBCRawPacketHandler(t *testing.T) {
 	}
 	var capturedPacket *CapturedPacket
 
-	chanKeeper := &wasmtesting.MockChannelKeeper{
-		GetChannelFn: func(ctx sdk.Context, srcPort, srcChan string) (channeltypes.Channel, bool) {
-			return channeltypes.Channel{
-				Counterparty: channeltypes.NewCounterparty(
-					"other-port",
-					"other-channel-1",
-				),
-			}, true
-		},
+	capturePacketsSenderMock := &wasmtesting.MockIBCPacketSender{
 		SendPacketFn: func(ctx sdk.Context, channelCap *capabilitytypes.Capability, sourcePort string, sourceChannel string, timeoutHeight clienttypes.Height, timeoutTimestamp uint64, data []byte) (uint64, error) {
 			capturedPacket = &CapturedPacket{
 				sourcePort:       sourcePort,
@@ -256,6 +248,16 @@ func TestIBCRawPacketHandler(t *testing.T) {
 			return 1, nil
 		},
 	}
+	chanKeeper := &wasmtesting.MockChannelKeeper{
+		GetChannelFn: func(ctx sdk.Context, srcPort, srcChan string) (channeltypes.Channel, bool) {
+			return channeltypes.Channel{
+				Counterparty: channeltypes.NewCounterparty(
+					"other-port",
+					"other-channel-1",
+				),
+			}, true
+		},
+	}
 	capKeeper := &wasmtesting.MockCapabilityKeeper{
 		GetCapabilityFn: func(ctx sdk.Context, name string) (*capabilitytypes.Capability, bool) {
 			return &capabilitytypes.Capability{}, true
@@ -303,7 +305,7 @@ func TestIBCRawPacketHandler(t *testing.T) {
 		t.Run(name, func(t *testing.T) {
 			capturedPacket = nil
 			// when
-			h := NewIBCRawPacketHandler(spec.chanKeeper, spec.capKeeper)
+			h := NewIBCRawPacketHandler(capturePacketsSenderMock, spec.chanKeeper, spec.capKeeper)
 			evts, data, gotErr := h.DispatchMsg(ctx, RandomAccountAddress(t), ibcPort, wasmvmtypes.CosmosMsg{IBC: &wasmvmtypes.IBCMsg{SendPacket: &spec.srcMsg}})
 			// then
 			require.True(t, spec.expErr.Is(gotErr), "exp %v but got %#+v", spec.expErr, gotErr)
diff --git a/x/wasm/keeper/keeper_cgo.go b/x/wasm/keeper/keeper_cgo.go
index dd402bc1..78d9edde 100644
--- a/x/wasm/keeper/keeper_cgo.go
+++ b/x/wasm/keeper/keeper_cgo.go
@@ -22,6 +22,7 @@ func NewKeeper(
 	bankKeeper types.BankKeeper,
 	stakingKeeper types.StakingKeeper,
 	distrKeeper types.DistributionKeeper,
+	ics4Wrapper types.ICS4Wrapper,
 	channelKeeper types.ChannelKeeper,
 	portKeeper types.PortKeeper,
 	capabilityKeeper types.CapabilityKeeper,
@@ -48,7 +49,7 @@ func NewKeeper(
 		accountPruner:        NewVestingCoinBurner(bankKeeper),
 		portKeeper:           portKeeper,
 		capabilityKeeper:     capabilityKeeper,
-		messenger:            NewDefaultMessageHandler(router, channelKeeper, capabilityKeeper, bankKeeper, cdc, portSource),
+		messenger:            NewDefaultMessageHandler(router, ics4Wrapper, channelKeeper, capabilityKeeper, bankKeeper, cdc, portSource),
 		queryGasLimit:        wasmConfig.SmartQueryGasLimit,
 		gasRegister:          NewDefaultWasmGasRegister(),
 		maxQueryStackSize:    types.DefaultMaxQueryStackSize,
diff --git a/x/wasm/keeper/keeper_no_cgo.go b/x/wasm/keeper/keeper_no_cgo.go
index 30d06c01..4a5db265 100644
--- a/x/wasm/keeper/keeper_no_cgo.go
+++ b/x/wasm/keeper/keeper_no_cgo.go
@@ -18,6 +18,7 @@ func NewKeeper(
 	bankKeeper types.BankKeeper,
 	stakingKeeper types.StakingKeeper,
 	distrKeeper types.DistributionKeeper,
+	ics4Wrapper types.ICS4Wrapper,
 	channelKeeper types.ChannelKeeper,
 	portKeeper types.PortKeeper,
 	capabilityKeeper types.CapabilityKeeper,
diff --git a/x/wasm/keeper/keeper_test.go b/x/wasm/keeper/keeper_test.go
index 9211e74c..c0825d38 100644
--- a/x/wasm/keeper/keeper_test.go
+++ b/x/wasm/keeper/keeper_test.go
@@ -752,7 +752,7 @@ func TestInstantiateWithContractFactoryChildQueriesParent(t *testing.T) {
 	router := baseapp.NewMsgServiceRouter()
 	router.SetInterfaceRegistry(keepers.EncodingConfig.InterfaceRegistry)
 	types.RegisterMsgServer(router, NewMsgServerImpl(keeper))
-	keeper.messenger = NewDefaultMessageHandler(router, nil, nil, nil, keepers.EncodingConfig.Marshaler, nil)
+	keeper.messenger = NewDefaultMessageHandler(router, nil, nil, nil, nil, keepers.EncodingConfig.Marshaler, nil)
 	// overwrite wasmvm in response handler
 	keeper.wasmVMResponseHandler = NewDefaultWasmVMContractResponseHandler(NewMessageDispatcher(keeper.messenger, keeper))
 
diff --git a/x/wasm/keeper/options_test.go b/x/wasm/keeper/options_test.go
index 29557c3c..e6d055e9 100644
--- a/x/wasm/keeper/options_test.go
+++ b/x/wasm/keeper/options_test.go
@@ -113,7 +113,7 @@ func TestConstructorOptions(t *testing.T) {
 	}
 	for name, spec := range specs {
 		t.Run(name, func(t *testing.T) {
-			k := NewKeeper(nil, nil, authkeeper.AccountKeeper{}, &bankkeeper.BaseKeeper{}, stakingkeeper.Keeper{}, nil, nil, nil, nil, nil, nil, nil, "tempDir", types.DefaultWasmConfig(), AvailableCapabilities, "", spec.srcOpt)
+			k := NewKeeper(nil, nil, authkeeper.AccountKeeper{}, &bankkeeper.BaseKeeper{}, stakingkeeper.Keeper{}, nil, nil, nil, nil, nil, nil, nil, nil, "tempDir", types.DefaultWasmConfig(), AvailableCapabilities, "", spec.srcOpt)
 			spec.verify(t, k)
 		})
 	}
diff --git a/x/wasm/keeper/test_common.go b/x/wasm/keeper/test_common.go
index d5cd2233..7f2d8cd0 100644
--- a/x/wasm/keeper/test_common.go
+++ b/x/wasm/keeper/test_common.go
@@ -425,6 +425,7 @@ func createTestInput(
 		bankKeeper,
 		stakingKeeper,
 		distributionkeeper.NewQuerier(distKeeper),
+		ibcKeeper.ChannelKeeper, // ICS4Wrapper
 		ibcKeeper.ChannelKeeper,
 		&ibcKeeper.PortKeeper,
 		scopedWasmKeeper,
diff --git a/x/wasm/keeper/wasmtesting/mock_keepers.go b/x/wasm/keeper/wasmtesting/mock_keepers.go
index edf9df09..b5e68869 100644
--- a/x/wasm/keeper/wasmtesting/mock_keepers.go
+++ b/x/wasm/keeper/wasmtesting/mock_keepers.go
@@ -10,12 +10,12 @@ import (
 )
 
 type MockChannelKeeper struct {
-	GetChannelFn      func(ctx sdk.Context, srcPort, srcChan string) (channel channeltypes.Channel, found bool)
-	SendPacketFn      func(ctx sdk.Context, channelCap *capabilitytypes.Capability, sourcePort string, sourceChannel string, timeoutHeight clienttypes.Height, timeoutTimestamp uint64, data []byte) (uint64, error)
-	ChanCloseInitFn   func(ctx sdk.Context, portID, channelID string, chanCap *capabilitytypes.Capability) error
-	GetAllChannelsFn  func(ctx sdk.Context) []channeltypes.IdentifiedChannel
-	IterateChannelsFn func(ctx sdk.Context, cb func(channeltypes.IdentifiedChannel) bool)
-	SetChannelFn      func(ctx sdk.Context, portID, channelID string, channel channeltypes.Channel)
+	GetChannelFn          func(ctx sdk.Context, srcPort, srcChan string) (channel channeltypes.Channel, found bool)
+	GetNextSequenceSendFn func(ctx sdk.Context, portID, channelID string) (uint64, bool)
+	ChanCloseInitFn       func(ctx sdk.Context, portID, channelID string, chanCap *capabilitytypes.Capability) error
+	GetAllChannelsFn      func(ctx sdk.Context) []channeltypes.IdentifiedChannel
+	IterateChannelsFn     func(ctx sdk.Context, cb func(channeltypes.IdentifiedChannel) bool)
+	SetChannelFn          func(ctx sdk.Context, portID, channelID string, channel channeltypes.Channel)
 }
 
 func (m *MockChannelKeeper) GetChannel(ctx sdk.Context, srcPort, srcChan string) (channel channeltypes.Channel, found bool) {
@@ -32,11 +32,11 @@ func (m *MockChannelKeeper) GetAllChannels(ctx sdk.Context) []channeltypes.Ident
 	return m.GetAllChannelsFn(ctx)
 }
 
-func (m *MockChannelKeeper) SendPacket(ctx sdk.Context, channelCap *capabilitytypes.Capability, sourcePort string, sourceChannel string, timeoutHeight clienttypes.Height, timeoutTimestamp uint64, data []byte) (uint64, error) {
-	if m.SendPacketFn == nil {
+func (m *MockChannelKeeper) GetNextSequenceSend(ctx sdk.Context, portID, channelID string) (uint64, bool) {
+	if m.GetNextSequenceSendFn == nil {
 		panic("not supposed to be called!")
 	}
-	return m.SendPacketFn(ctx, channelCap, sourcePort, sourceChannel, timeoutHeight, timeoutTimestamp, data)
+	return m.GetNextSequenceSendFn(ctx, portID, channelID)
 }
 
 func (m *MockChannelKeeper) ChanCloseInit(ctx sdk.Context, portID, channelID string, chanCap *capabilitytypes.Capability) error {
@@ -60,6 +60,17 @@ func (m *MockChannelKeeper) SetChannel(ctx sdk.Context, portID, channelID string
 	m.SetChannelFn(ctx, portID, channelID, channel)
 }
 
+type MockIBCPacketSender struct {
+	SendPacketFn func(ctx sdk.Context, channelCap *capabilitytypes.Capability, sourcePort string, sourceChannel string, timeoutHeight clienttypes.Height, timeoutTimestamp uint64, data []byte) (uint64, error)
+}
+
+func (m *MockIBCPacketSender) SendPacket(ctx sdk.Context, channelCap *capabilitytypes.Capability, sourcePort string, sourceChannel string, timeoutHeight clienttypes.Height, timeoutTimestamp uint64, data []byte) (uint64, error) {
+	if m.SendPacketFn == nil {
+		panic("not supposed to be called!")
+	}
+	return m.SendPacketFn(ctx, channelCap, sourcePort, sourceChannel, timeoutHeight, timeoutTimestamp, data)
+}
+
 func MockChannelKeeperIterator(s []channeltypes.IdentifiedChannel) func(ctx sdk.Context, cb func(channeltypes.IdentifiedChannel) bool) {
 	return func(ctx sdk.Context, cb func(channeltypes.IdentifiedChannel) bool) {
 		for _, channel := range s {
diff --git a/x/wasm/types/expected_keepers.go b/x/wasm/types/expected_keepers.go
index e9b52273..9f4595f4 100644
--- a/x/wasm/types/expected_keepers.go
+++ b/x/wasm/types/expected_keepers.go
@@ -3,12 +3,13 @@ package types
 import (
 	"context"
 
+	clienttypes "github.com/cosmos/ibc-go/v7/modules/core/02-client/types"
+
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
 	capabilitytypes "github.com/cosmos/cosmos-sdk/x/capability/types"
 	distrtypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
 	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
-	clienttypes "github.com/cosmos/ibc-go/v7/modules/core/02-client/types"
 	connectiontypes "github.com/cosmos/ibc-go/v7/modules/core/03-connection/types"
 	channeltypes "github.com/cosmos/ibc-go/v7/modules/core/04-channel/types"
 	ibcexported "github.com/cosmos/ibc-go/v7/modules/core/exported"
@@ -72,7 +73,21 @@ type StakingKeeper interface {
 // ChannelKeeper defines the expected IBC channel keeper
 type ChannelKeeper interface {
 	GetChannel(ctx sdk.Context, srcPort, srcChan string) (channel channeltypes.Channel, found bool)
+	GetNextSequenceSend(ctx sdk.Context, portID, channelID string) (uint64, bool)
+	ChanCloseInit(ctx sdk.Context, portID, channelID string, chanCap *capabilitytypes.Capability) error
+	GetAllChannels(ctx sdk.Context) (channels []channeltypes.IdentifiedChannel)
+	IterateChannels(ctx sdk.Context, cb func(channeltypes.IdentifiedChannel) bool)
+	SetChannel(ctx sdk.Context, portID, channelID string, channel channeltypes.Channel)
+}
 
+// ICS4Wrapper defines the method for an IBC data package to be submitted.
+// The interface is implemented by the channel keeper on the lowest level in ibc-go. Middlewares or other abstractions
+// can add functionality on top of it. See ics4Wrapper in ibc-go.
+// It is important to choose the right implementation that is configured for any middleware used in the ibc-stack of wasm.
+//
+// For example, when ics-29 fee middleware is set up for the wasm ibc-stack, then the IBCFeeKeeper should be used, so
+// that they are in sync.
+type ICS4Wrapper interface {
 	// SendPacket is called by a module in order to send an IBC packet on a channel.
 	// The packet sequence generated for the packet to be sent is returned. An error
 	// is returned if one occurs.
@@ -85,10 +100,6 @@ type ChannelKeeper interface {
 		timeoutTimestamp uint64,
 		data []byte,
 	) (uint64, error)
-	ChanCloseInit(ctx sdk.Context, portID, channelID string, chanCap *capabilitytypes.Capability) error
-	GetAllChannels(ctx sdk.Context) (channels []channeltypes.IdentifiedChannel)
-	IterateChannels(ctx sdk.Context, cb func(channeltypes.IdentifiedChannel) bool)
-	SetChannel(ctx sdk.Context, portID, channelID string, channel channeltypes.Channel)
 }
 
 // ClientKeeper defines the expected IBC client keeper