diff --git a/COPYING b/COPYING
new file mode 100644
index 00000000..5f866bad
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,38 @@
+Copyright (c) 2020 The Zcash developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+The MIT software license (https://www.opensource.org/licenses/mit-license.php)
+above applies to the code directly included in this source distribution, with
+the exception of certain Autoconf macros. Dependencies downloaded as part of
+the build process may be covered by other open-source licenses. The MIT-licensed
+source code is not considered a derived work of these Autoconf macros or of the
+dependencies. For further details see 'contrib/debian/copyright'.
+
+
+This product includes software developed by the OpenSSL Project for use in the
+OpenSSL Toolkit (https://www.openssl.org/). This product includes cryptographic
+software written by Eric Young (eay@cryptsoft.com).
+
+
+Although almost all of the Zcash code is licensed under "permissive" open source
+licenses, users and distributors should note that when built using the default
+build options, Zcash depends on Oracle Berkeley DB 6.2.x, which is licensed
+under the GNU Affero General Public License.
diff --git a/Makefile b/Makefile
index 0e111ba8..3f01c793 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,10 @@
  #  Description:  Used for local and container dev in CI deployments
  #  Usage: make <target_name>
  #
+ #  Copyright (c) 2020 The Zcash developers
+ #  Distributed under the MIT software license, see the accompanying
+ #  file COPYING or https://www.opensource.org/licenses/mit-license.php .
+ #
  #  Known bugs/missing features:
  #  1. make msan is not stable as of 9/20/2019
  #
diff --git a/cmd/server/main.go b/cmd/server/main.go
index 223c0184..9c780de4 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package main
 
 import (
diff --git a/cmd/server/server_test.go b/cmd/server/server_test.go
index 9213007a..1bc467e8 100644
--- a/cmd/server/server_test.go
+++ b/cmd/server/server_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package main
 
 import (
diff --git a/common/cache.go b/common/cache.go
index f317735d..deaff1dd 100644
--- a/common/cache.go
+++ b/common/cache.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package common
 
 import (
diff --git a/common/cache_test.go b/common/cache_test.go
index 6306f4c3..a70190b8 100644
--- a/common/cache_test.go
+++ b/common/cache_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package common
 
 import (
diff --git a/common/common.go b/common/common.go
index 9c32f7e3..78b9630f 100644
--- a/common/common.go
+++ b/common/common.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package common
 
 import (
diff --git a/common/common_test.go b/common/common_test.go
index d71c3e1e..8028879d 100644
--- a/common/common_test.go
+++ b/common/common_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package common
 
 import (
diff --git a/common/generatecerts.go b/common/generatecerts.go
index 73cea08d..0dddbc99 100644
--- a/common/generatecerts.go
+++ b/common/generatecerts.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package common
 
 import (
diff --git a/frontend/frontend_test.go b/frontend/frontend_test.go
index bad0c307..78616801 100644
--- a/frontend/frontend_test.go
+++ b/frontend/frontend_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package frontend
 
 import (
diff --git a/frontend/rpc_client.go b/frontend/rpc_client.go
index a519cb93..f675af8e 100644
--- a/frontend/rpc_client.go
+++ b/frontend/rpc_client.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package frontend
 
 import (
diff --git a/frontend/service.go b/frontend/service.go
index ba69cb3b..37717ee0 100644
--- a/frontend/service.go
+++ b/frontend/service.go
@@ -1,3 +1,8 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
+
+// Package frontend implements the gRPC handlers called by the wallets.
 package frontend
 
 import (
diff --git a/parser/block.go b/parser/block.go
index 888fed0b..c9a5d107 100644
--- a/parser/block.go
+++ b/parser/block.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package parser
 
 import (
diff --git a/parser/block_header.go b/parser/block_header.go
index 82ff1522..8c42c372 100644
--- a/parser/block_header.go
+++ b/parser/block_header.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package parser
 
 import (
diff --git a/parser/block_header_test.go b/parser/block_header_test.go
index d3832dc8..94866a71 100644
--- a/parser/block_header_test.go
+++ b/parser/block_header_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package parser
 
 import (
diff --git a/parser/block_test.go b/parser/block_test.go
index 30fe40dd..cda80db1 100644
--- a/parser/block_test.go
+++ b/parser/block_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package parser
 
 import (
diff --git a/parser/fuzz.go b/parser/fuzz.go
index b0e9baa3..c6821253 100644
--- a/parser/fuzz.go
+++ b/parser/fuzz.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 // +build gofuzz
 
 package parser
diff --git a/parser/internal/bytestring/bytestring.go b/parser/internal/bytestring/bytestring.go
index 6a016f22..98f75c1a 100644
--- a/parser/internal/bytestring/bytestring.go
+++ b/parser/internal/bytestring/bytestring.go
@@ -1,3 +1,7 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
+
 // Package bytestring provides a cryptobyte-inspired API specialized to the
 // needs of parsing Zcash transactions.
 package bytestring
diff --git a/parser/internal/bytestring/bytestring_test.go b/parser/internal/bytestring/bytestring_test.go
index 7d64afa2..d6b9ab9e 100644
--- a/parser/internal/bytestring/bytestring_test.go
+++ b/parser/internal/bytestring/bytestring_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package bytestring
 
 import (
diff --git a/parser/transaction.go b/parser/transaction.go
index 0a9eb26f..e909d100 100644
--- a/parser/transaction.go
+++ b/parser/transaction.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package parser
 
 import (
diff --git a/parser/transaction_test.go b/parser/transaction_test.go
index 202590f0..2ad2dfbe 100644
--- a/parser/transaction_test.go
+++ b/parser/transaction_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package parser
 
 import (
diff --git a/walletrpc/compact_formats.proto b/walletrpc/compact_formats.proto
index ff920db3..69a404ca 100644
--- a/walletrpc/compact_formats.proto
+++ b/walletrpc/compact_formats.proto
@@ -1,3 +1,7 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
+
 syntax = "proto3";
 package cash.z.wallet.sdk.rpc;
 option go_package = "walletrpc";
diff --git a/walletrpc/generate.go b/walletrpc/generate.go
index 836010f8..e75f7feb 100644
--- a/walletrpc/generate.go
+++ b/walletrpc/generate.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package walletrpc
 
 //go:generate protoc -I . ./compact_formats.proto --go_out=plugins=grpc:.
diff --git a/walletrpc/service.proto b/walletrpc/service.proto
index c87fa55d..7f3d4451 100644
--- a/walletrpc/service.proto
+++ b/walletrpc/service.proto
@@ -1,3 +1,7 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
+
 syntax = "proto3";
 package cash.z.wallet.sdk.rpc;
 option go_package = "walletrpc";
diff --git a/walletrpc/walletrpc_test.go b/walletrpc/walletrpc_test.go
index ebec876b..d44b2231 100644
--- a/walletrpc/walletrpc_test.go
+++ b/walletrpc/walletrpc_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2019-2020 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or https://www.opensource.org/licenses/mit-license.php .
 package walletrpc
 
 import (