diff --git a/src/miner.h b/src/miner.h
--- a/src/miner.h
+++ b/src/miner.h
@@ -28,17 +28,11 @@
 
 struct CBlockTemplateEntry {
     CTransactionRef tx;
-    //!< Total real fees paid by the transaction and cached to avoid parent
-    //!< lookup
-    Amount txFee;
-    //!< Cached total size of the transaction to avoid reserializing transaction
-    size_t txSize;
-    //!< Cached total number of SigOps
-    uint64_t txSigOps;
-
-    CBlockTemplateEntry(CTransactionRef _tx, Amount _fees, uint64_t _size,
-                        int64_t _sigOps)
-        : tx(_tx), txFee(_fees), txSize(_size), txSigOps(_sigOps) {}
+    Amount fees;
+    int64_t sigOpCount;
+
+    CBlockTemplateEntry(CTransactionRef _tx, Amount _fees, int64_t _sigOpCount)
+        : tx(_tx), fees(_fees), sigOpCount(_sigOpCount){};
 };
 
 struct CBlockTemplate {
diff --git a/src/miner.cpp b/src/miner.cpp
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -128,7 +128,7 @@
     pblock = &pblocktemplate->block;
 
     // Add dummy coinbase tx as first transaction.  It is updated at the end.
-    pblocktemplate->entries.emplace_back(CTransactionRef(), -SATOSHI, 0, -1);
+    pblocktemplate->entries.emplace_back(CTransactionRef(), -SATOSHI, -1);
 
     LOCK2(cs_main, mempool->cs);
     CBlockIndex *pindexPrev = chainActive.Tip();
@@ -187,11 +187,7 @@
     }
 
     pblocktemplate->entries[0].tx = MakeTransactionRef(coinbaseTx);
-    // Note: For the Coinbase, the template entry fields aside from the `tx` are
-    // not used anywhere at the time of writing.  The mining rpc throws out the
-    // entire transaction in fact. The tx itself is only used during regtest
-    // mode.
-    pblocktemplate->entries[0].txFee = -1 * nFees;
+    pblocktemplate->entries[0].fees = -1 * nFees;
 
     uint64_t nSerializeSize = GetSerializeSize(*pblock, PROTOCOL_VERSION);
 
@@ -204,7 +200,7 @@
     pblock->nBits =
         GetNextWorkRequired(pindexPrev, pblock, chainparams.GetConsensus());
     pblock->nNonce = 0;
-    pblocktemplate->entries[0].txSigOps = GetSigOpCountWithoutP2SH(
+    pblocktemplate->entries[0].sigOpCount = GetSigOpCountWithoutP2SH(
         *pblocktemplate->entries[0].tx, STANDARD_SCRIPT_VERIFY_FLAGS);
 
     // Copy all the transactions into the block
@@ -291,7 +287,6 @@
 
 void BlockAssembler::AddToBlock(CTxMemPool::txiter iter) {
     pblocktemplate->entries.emplace_back(iter->GetSharedTx(), iter->GetFee(),
-                                         iter->GetTxSize(),
                                          iter->GetSigOpCount());
     nBlockSize += iter->GetTxSize();
     ++nBlockTx;
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -614,9 +614,10 @@
         entry.pushKV("data", EncodeHexTx(tx));
         entry.pushKV("txid", txId.GetHex());
         entry.pushKV("hash", tx.GetHash().GetHex());
-        entry.pushKV("fee", pblocktemplate->entries[index_in_template].txFee /
-                                SATOSHI);
-        int64_t nTxSigOps = pblocktemplate->entries[index_in_template].txSigOps;
+        entry.pushKV("fee",
+                     pblocktemplate->entries[index_in_template].fees / SATOSHI);
+        int64_t nTxSigOps =
+            pblocktemplate->entries[index_in_template].sigOpCount;
         entry.pushKV("sigops", nTxSigOps);
 
         transactions.push_back(entry);
diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp
--- a/src/test/miner_tests.cpp
+++ b/src/test/miner_tests.cpp
@@ -777,11 +777,10 @@
 BOOST_AUTO_TEST_CASE(TestCBlockTemplateEntry) {
     const CTransaction tx;
     CTransactionRef txRef = MakeTransactionRef(tx);
-    CBlockTemplateEntry txEntry(txRef, 1 * SATOSHI, 200, 10);
+    CBlockTemplateEntry txEntry(txRef, 1 * SATOSHI, 10);
     BOOST_CHECK_MESSAGE(txEntry.tx == txRef, "Transactions did not match");
-    BOOST_CHECK_EQUAL(txEntry.txFee, 1 * SATOSHI);
-    BOOST_CHECK_EQUAL(txEntry.txSize, 200);
-    BOOST_CHECK_EQUAL(txEntry.txSigOps, 10);
+    BOOST_CHECK_EQUAL(txEntry.fees, 1 * SATOSHI);
+    BOOST_CHECK_EQUAL(txEntry.sigOpCount, 10);
 }
 
 BOOST_AUTO_TEST_SUITE_END()