diff --git a/src/miner.cpp b/src/miner.cpp
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -194,8 +194,7 @@
     const std::vector<CTxDestination> whitelisted =
         GetMinerFundWhitelist(consensusParams, pindexPrev);
     if (!whitelisted.empty()) {
-        const Amount fund =
-            (MINER_FUND_RATIO * coinbaseTx.vout[0].nValue) / 100;
+        const Amount fund = GetMinerFundAmount(coinbaseTx.vout[0].nValue);
         coinbaseTx.vout[0].nValue -= fund;
         coinbaseTx.vout.emplace_back(fund,
                                      GetScriptForDestination(whitelisted[0]));
diff --git a/src/minerfund.h b/src/minerfund.h
--- a/src/minerfund.h
+++ b/src/minerfund.h
@@ -5,6 +5,7 @@
 #ifndef BITCOIN_MINERFUND_H
 #define BITCOIN_MINERFUND_H
 
+#include <amount.h>
 #include <script/standard.h>
 
 #include <vector>
@@ -15,10 +16,7 @@
 struct Params;
 }
 
-/**
- * Percentage of the block reward to be sent to the fund.
- */
-static constexpr int MINER_FUND_RATIO = 8;
+Amount GetMinerFundAmount(const Amount &coinbaseValue);
 
 std::vector<CTxDestination>
 GetMinerFundWhitelist(const Consensus::Params &params,
diff --git a/src/minerfund.cpp b/src/minerfund.cpp
--- a/src/minerfund.cpp
+++ b/src/minerfund.cpp
@@ -10,6 +10,15 @@
 #include <util/system.h>
 #include <validation.h> // For VersionBitsBlockState
 
+/**
+ * Percentage of the block reward to be sent to the fund.
+ */
+static constexpr int MINER_FUND_RATIO = 8;
+
+Amount GetMinerFundAmount(const Amount &coinbaseValue) {
+    return MINER_FUND_RATIO * coinbaseValue / 100;
+}
+
 static CTxDestination BuildDestination(const std::string &dest) {
     const auto mainNetParams = CreateChainParams(CBaseChainParams::MAIN);
     return DecodeDestination(dest, *mainNetParams);
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -1820,7 +1820,7 @@
     const std::vector<CTxDestination> whitelist =
         GetMinerFundWhitelist(consensusParams, pindex->pprev);
     if (!whitelist.empty()) {
-        const Amount required = (MINER_FUND_RATIO * blockReward) / 100;
+        const Amount required = GetMinerFundAmount(blockReward);
 
         for (auto &o : block.vtx[0]->vout) {
             if (o.nValue < required) {