diff --git a/src/core_io.h b/src/core_io.h
--- a/src/core_io.h
+++ b/src/core_io.h
@@ -17,7 +17,6 @@
 class CMutableTransaction;
 class CScript;
 class CTransaction;
-struct PartiallySignedTransaction;
 class uint256;
 class UniValue;
 
@@ -40,13 +39,6 @@
  */
 bool ParseHashStr(const std::string &strHex, uint256 &result);
 std::vector<uint8_t> ParseHexUV(const UniValue &v, const std::string &strName);
-//! Decode a base64ed PSBT into a PartiallySignedTransaction
-NODISCARD bool DecodeBase64PSBT(PartiallySignedTransaction &decoded_psbt,
-                                const std::string &base64_psbt,
-                                std::string &error);
-//! Decode a raw (binary blob) PSBT into a PartiallySignedTransaction
-NODISCARD bool DecodeRawPSBT(PartiallySignedTransaction &decoded_psbt,
-                             const std::string &raw_psbt, std::string &error);
 SigHashType ParseSighashString(const UniValue &sighash);
 
 // core_write.cpp
diff --git a/src/core_read.cpp b/src/core_read.cpp
--- a/src/core_read.cpp
+++ b/src/core_read.cpp
@@ -230,34 +230,6 @@
     return true;
 }
 
-bool DecodeBase64PSBT(PartiallySignedTransaction &psbt,
-                      const std::string &base64_tx, std::string &error) {
-    bool invalid;
-    std::string tx_data = DecodeBase64(base64_tx, &invalid);
-    if (invalid) {
-        error = "invalid base64";
-        return false;
-    }
-    return DecodeRawPSBT(psbt, tx_data, error);
-}
-
-bool DecodeRawPSBT(PartiallySignedTransaction &psbt, const std::string &tx_data,
-                   std::string &error) {
-    CDataStream ss_data(tx_data.data(), tx_data.data() + tx_data.size(),
-                        SER_NETWORK, PROTOCOL_VERSION);
-    try {
-        ss_data >> psbt;
-        if (!ss_data.empty()) {
-            error = "extra data after PSBT";
-            return false;
-        }
-    } catch (const std::exception &e) {
-        error = e.what();
-        return false;
-    }
-    return true;
-}
-
 bool ParseHashStr(const std::string &strHex, uint256 &result) {
     if ((strHex.size() != 64) || !IsHex(strHex)) {
         return false;
diff --git a/src/psbt.h b/src/psbt.h
--- a/src/psbt.h
+++ b/src/psbt.h
@@ -527,4 +527,12 @@
 CombinePSBTs(PartiallySignedTransaction &out,
              const std::vector<PartiallySignedTransaction> &psbtxs);
 
+//! Decode a base64ed PSBT into a PartiallySignedTransaction
+NODISCARD bool DecodeBase64PSBT(PartiallySignedTransaction &decoded_psbt,
+                                const std::string &base64_psbt,
+                                std::string &error);
+//! Decode a raw (binary blob) PSBT into a PartiallySignedTransaction
+NODISCARD bool DecodeRawPSBT(PartiallySignedTransaction &decoded_psbt,
+                             const std::string &raw_psbt, std::string &error);
+
 #endif // BITCOIN_PSBT_H
diff --git a/src/psbt.cpp b/src/psbt.cpp
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -272,3 +272,31 @@
 
     return TransactionError::OK;
 }
+
+bool DecodeBase64PSBT(PartiallySignedTransaction &psbt,
+                      const std::string &base64_tx, std::string &error) {
+    bool invalid;
+    std::string tx_data = DecodeBase64(base64_tx, &invalid);
+    if (invalid) {
+        error = "invalid base64";
+        return false;
+    }
+    return DecodeRawPSBT(psbt, tx_data, error);
+}
+
+bool DecodeRawPSBT(PartiallySignedTransaction &psbt, const std::string &tx_data,
+                   std::string &error) {
+    CDataStream ss_data(tx_data.data(), tx_data.data() + tx_data.size(),
+                        SER_NETWORK, PROTOCOL_VERSION);
+    try {
+        ss_data >> psbt;
+        if (!ss_data.empty()) {
+            error = "extra data after PSBT";
+            return false;
+        }
+    } catch (const std::exception &e) {
+        error = e.what();
+        return false;
+    }
+    return true;
+}
diff --git a/test/lint/lint-circular-dependencies.sh b/test/lint/lint-circular-dependencies.sh
--- a/test/lint/lint-circular-dependencies.sh
+++ b/test/lint/lint-circular-dependencies.sh
@@ -39,7 +39,6 @@
     "script/scriptcache -> validation -> script/scriptcache"
     "seeder/bitcoin -> seeder/db -> seeder/bitcoin"
     "chainparams -> protocol -> config -> chainparams"
-    "core_io -> psbt -> node/transaction -> validation -> core_io"
 )
 
 EXIT_CODE=0