diff --git a/uniond/proto/differedack/v1beta1/genesis.proto b/uniond/proto/differedack/v1beta1/genesis.proto
new file mode 100644
index 0000000000..0b00ad3162
--- /dev/null
+++ b/uniond/proto/differedack/v1beta1/genesis.proto
@@ -0,0 +1,14 @@
+syntax = "proto3";
+package differedack.v1beta1;
+
+import "gogoproto/gogo.proto";
+import "differedack/v1beta1/params.proto";
+
+
+option go_package = "union/x/differedack/types";
+
+// GenesisState defines the differedack module's genesis state.
+message GenesisState {
+  // params defines the paramaters of the module.
+  Params params = 1 [ (gogoproto.nullable) = false ];
+}
diff --git a/uniond/proto/differedack/v1beta1/params.proto b/uniond/proto/differedack/v1beta1/params.proto
new file mode 100644
index 0000000000..dbe8a76aea
--- /dev/null
+++ b/uniond/proto/differedack/v1beta1/params.proto
@@ -0,0 +1,16 @@
+syntax = "proto3";
+package differedack.v1beta1;
+
+import "gogoproto/gogo.proto";
+import "amino/amino.proto";
+
+option go_package = "union/x/differedack/types";
+
+// Params defines the parameters for the differedack module.
+message Params {
+  string fee_percentage = 1 [
+    (gogoproto.customtype) = "cosmossdk.io/math.LegacyDec",
+    (gogoproto.nullable)   = false,
+    (amino.dont_omitempty) = true
+  ];
+}
diff --git a/uniond/proto/differedack/v1beta1/query.proto b/uniond/proto/differedack/v1beta1/query.proto
new file mode 100644
index 0000000000..29afe119b3
--- /dev/null
+++ b/uniond/proto/differedack/v1beta1/query.proto
@@ -0,0 +1,26 @@
+syntax = "proto3";
+package differedack.v1beta1;
+
+import "gogoproto/gogo.proto";
+import "google/api/annotations.proto";
+import "differedack/v1beta1/params.proto";
+
+option go_package = "union/x/differedack/types";
+
+// Query defines the gRPC querier service.
+service Query {
+  // Params defines a gRPC query method that returns the differedack module's
+  // parameters.
+  rpc Params(QueryParamsRequest) returns (QueryParamsResponse) {
+    option (google.api.http).get = "/differedack.v1beta1/params";
+  }
+}
+
+// QueryParamsRequest is the request type for the Query/Params RPC method.
+message QueryParamsRequest {}
+
+// QueryParamsResponse is the response type for the Query/Params RPC method.
+message QueryParamsResponse {
+  // params defines the parameters of the module.
+  Params params = 1 [ (gogoproto.nullable) = false ];
+}
diff --git a/uniond/proto/differedack/v1beta1/tx.proto b/uniond/proto/differedack/v1beta1/tx.proto
new file mode 100644
index 0000000000..9118718853
--- /dev/null
+++ b/uniond/proto/differedack/v1beta1/tx.proto
@@ -0,0 +1,41 @@
+syntax = "proto3";
+package differedack.v1beta1;
+
+import "gogoproto/gogo.proto";
+import "cosmos/msg/v1/msg.proto";
+import "ibc/core/channel/v1/channel.proto";
+import "ibc/applications/transfer/v2/packet.proto";
+
+option go_package = "union/x/differedack/types";
+
+// Msg defines the differedack module's gRPC message service.
+service Msg {
+  option (cosmos.msg.v1.service) = true;
+
+  rpc WriteDifferedAck(MsgWriteDifferedAck) returns (MsgWriteDifferedAckResponse);
+}
+
+message MsgWriteDifferedAck {
+  ibc.core.channel.v1.Packet packet = 1;
+  ibc.applications.transfer.v2.FungibleTokenPacketData data = 2;
+  DifferedPacketInfo differedPacketInfo = 3;
+  ibc.core.channel.v1.Acknowledgement ack = 4;
+}
+
+message MsgWriteDifferedAckResponse {
+  
+}
+
+message DifferedPacketInfo {
+  string original_sender_address  = 1;
+  string refund_channel_id        = 2;
+  string refund_port_id           = 3;
+  string packet_src_channel_id    = 4;
+  string packet_src_port_id       = 5;
+  uint64 packet_timeout_timestamp = 6;
+  string packet_timeout_height    = 7;
+  bytes  packet_data              = 8;
+  uint64 refund_sequence          = 9;
+  uint64 timeout                  = 10;
+  bool   nonrefundable            = 11;
+}