diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64af8aa..5d7630c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [0.6.2.2]
 
 - Added JSON instances for `ZcashNet`
+- Added JSON instances for `Transaction`
 - Added `ValidAddress`
 
 ## [0.6.2.1]
diff --git a/src/ZcashHaskell/Types.hs b/src/ZcashHaskell/Types.hs
index d6bfd2e..9884b7f 100644
--- a/src/ZcashHaskell/Types.hs
+++ b/src/ZcashHaskell/Types.hs
@@ -38,6 +38,7 @@ import Data.Maybe (fromJust, fromMaybe)
 import Data.Structured
 import qualified Data.Text as T
 import qualified Data.Text.Encoding as E
+import qualified Data.Vector as V
 import Data.Word
 import qualified GHC.Generics as GHC
 import qualified Generics.SOP as SOP
@@ -133,6 +134,18 @@ data Transaction = Transaction
   , tx_orchardBundle :: !(Maybe OrchardBundle)
   } deriving (Prelude.Show, Eq, Read)
 
+instance ToJSON Transaction where
+  toJSON (Transaction t h c e tb sb ob) =
+    object
+      [ "txid" .= t
+      , "height" .= h
+      , "confirmations" .= c
+      , "expiry" .= e
+      , "transparent" .= tb
+      , "sapling" .= sb
+      , "orchard" .= ob
+      ]
+
 -- | The transparent portion of a Zcash transaction
 data TransparentBundle = TransparentBundle
   { tb_vin :: ![H.TxIn]
@@ -140,6 +153,10 @@ data TransparentBundle = TransparentBundle
   , tb_coinbase :: !Bool
   } deriving (Eq, Prelude.Show, Read)
 
+instance ToJSON TransparentBundle where
+  toJSON (TransparentBundle vin vout c) =
+    object ["vin" .= vin, "vout" .= vout, "coinbase" .= c]
+
 -- | Read a raw transparent bundle into the Haskell type
 fromRawTBundle :: RawTBundle -> Maybe TransparentBundle
 fromRawTBundle rtb =
@@ -324,6 +341,10 @@ data SaplingBundle = SaplingBundle
   , sbSig :: !HexString
   } deriving stock (Eq, Prelude.Show, GHC.Generic, Read)
 
+instance ToJSON SaplingBundle where
+  toJSON (SaplingBundle s o v sig) =
+    object ["spends" .= s, "outputs" .= o, "value" .= v, "sig" .= sig]
+
 fromRawSBundle :: RawSBundle -> Maybe SaplingBundle
 fromRawSBundle b =
   if zsb_empty b
@@ -355,6 +376,17 @@ data OrchardBundle = OrchardBundle
   , obSig :: !HexString
   } deriving stock (Eq, Prelude.Show, GHC.Generic, Read)
 
+instance ToJSON OrchardBundle where
+  toJSON (OrchardBundle a f v an p s) =
+    object
+      [ "actions" .= a
+      , "flags" .= f
+      , "value" .= v
+      , "anchor" .= an
+      , "proof" .= p
+      , "sig" .= s
+      ]
+
 fromRawOBundle :: RawOBundle -> Maybe OrchardBundle
 fromRawOBundle b =
   if zob_empty b
@@ -377,6 +409,10 @@ data OrchardFlags = OrchardFlags
     deriving anyclass (Data.Structured.Show)
     deriving (BorshSize, ToBorsh, FromBorsh) via AsStruct OrchardFlags
 
+instance ToJSON OrchardFlags where
+  toJSON (OrchardFlags s o) =
+    Data.Aeson.Array $ V.fromList [Data.Aeson.Bool s, Data.Aeson.Bool o]
+
 -- | Type for the response from the `zebrad` RPC method `getinfo`
 data ZebraGetInfo = ZebraGetInfo
   { zgi_build :: !T.Text
@@ -501,6 +537,17 @@ data ShieldedSpend = ShieldedSpend
     deriving anyclass (Data.Structured.Show)
     deriving (BorshSize, ToBorsh, FromBorsh) via AsStruct ShieldedSpend
 
+instance ToJSON ShieldedSpend where
+  toJSON (ShieldedSpend cv a n rk p au) =
+    object
+      [ "cv" .= cv
+      , "anchor" .= a
+      , "nullifier" .= n
+      , "rk" .= rk
+      , "proof" .= p
+      , "spendAuthSig" .= au
+      ]
+
 instance FromJSON ShieldedSpend where
   parseJSON =
     withObject "ShieldedSpend" $ \obj -> do
@@ -525,6 +572,17 @@ data ShieldedOutput = ShieldedOutput
     deriving anyclass (Data.Structured.Show)
     deriving (BorshSize, ToBorsh, FromBorsh) via AsStruct ShieldedOutput
 
+instance ToJSON ShieldedOutput where
+  toJSON (ShieldedOutput c cm e enc o p) =
+    object
+      [ "cv" .= c
+      , "cmu" .= cm
+      , "ephemeralKey" .= e
+      , "encCiphertext" .= enc
+      , "outCiphertext" .= o
+      , "proof" .= p
+      ]
+
 instance FromJSON ShieldedOutput where
   parseJSON =
     withObject "ShieldedOutput" $ \obj -> do
@@ -617,6 +675,19 @@ data OrchardAction = OrchardAction
     deriving anyclass (Data.Structured.Show)
     deriving (BorshSize, ToBorsh, FromBorsh) via AsStruct OrchardAction
 
+instance ToJSON OrchardAction where
+  toJSON (OrchardAction n r c e en o cv a) =
+    object
+      [ "nullifier" .= n
+      , "rk" .= r
+      , "cmx" .= c
+      , "ephemeralKey" .= e
+      , "encCiphertext" .= en
+      , "outCiphertext" .= o
+      , "cv" .= cv
+      , "spendAuthSig" .= a
+      ]
+
 instance FromJSON OrchardAction where
   parseJSON =
     withObject "OrchardAction" $ \obj -> do
diff --git a/zcash-haskell.cabal b/zcash-haskell.cabal
index 436bf5a..33c6140 100644
--- a/zcash-haskell.cabal
+++ b/zcash-haskell.cabal
@@ -59,6 +59,7 @@ library
     , text
     , haskoin-core
     , secp256k1-haskell >= 1.1
+    , vector
     , utf8-string
   build-tool-depends:
     c2hs:c2hs