diff --git a/src/init.cpp b/src/init.cpp
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1896,8 +1896,9 @@
         Amount n = Amount::zero();
         auto parsed = ParseMoney(gArgs.GetArg("-excessutxocharge", ""), n);
         if (!parsed || Amount::zero() > n) {
-            return InitError(AmountErrMsg(
-                "excessutxocharge", gArgs.GetArg("-excessutxocharge", "")));
+            return InitError(AmountErrMsg("excessutxocharge",
+                                          gArgs.GetArg("-excessutxocharge", ""))
+                                 .translated);
         }
         config.SetExcessUTXOCharge(n);
     } else {
@@ -1909,7 +1910,8 @@
         auto parsed = ParseMoney(gArgs.GetArg("-minrelaytxfee", ""), n);
         if (!parsed || n == Amount::zero()) {
             return InitError(AmountErrMsg("minrelaytxfee",
-                                          gArgs.GetArg("-minrelaytxfee", "")));
+                                          gArgs.GetArg("-minrelaytxfee", ""))
+                                 .translated);
         }
         // High fee check is done afterward in WalletParameterInteraction()
         ::minRelayTxFee = CFeeRate(n);
@@ -1922,7 +1924,8 @@
         Amount n = Amount::zero();
         if (!ParseMoney(gArgs.GetArg("-blockmintxfee", ""), n)) {
             return InitError(AmountErrMsg("blockmintxfee",
-                                          gArgs.GetArg("-blockmintxfee", "")));
+                                          gArgs.GetArg("-blockmintxfee", ""))
+                                 .translated);
         }
     }
 
@@ -1932,8 +1935,9 @@
         Amount n = Amount::zero();
         auto parsed = ParseMoney(gArgs.GetArg("-dustrelayfee", ""), n);
         if (!parsed || Amount::zero() == n) {
-            return InitError(AmountErrMsg("dustrelayfee",
-                                          gArgs.GetArg("-dustrelayfee", "")));
+            return InitError(
+                AmountErrMsg("dustrelayfee", gArgs.GetArg("-dustrelayfee", ""))
+                    .translated);
         }
         dustRelayFee = CFeeRate(n);
     }
diff --git a/src/util/error.h b/src/util/error.h
--- a/src/util/error.h
+++ b/src/util/error.h
@@ -17,6 +17,8 @@
 
 #include <string>
 
+struct bilingual_str;
+
 enum class TransactionError {
     OK, //!< No error
 
@@ -33,9 +35,9 @@
 
 std::string TransactionErrorString(TransactionError error);
 
-std::string AmountHighWarn(const std::string &optname);
+bilingual_str AmountHighWarn(const std::string &optname);
 
-std::string AmountErrMsg(const std::string &optname,
-                         const std::string &strValue);
+bilingual_str AmountErrMsg(const std::string &optname,
+                           const std::string &strValue);
 
 #endif // BITCOIN_UTIL_ERROR_H
diff --git a/src/util/error.cpp b/src/util/error.cpp
--- a/src/util/error.cpp
+++ b/src/util/error.cpp
@@ -35,12 +35,12 @@
     assert(false);
 }
 
-std::string AmountHighWarn(const std::string &optname) {
-    return strprintf(_("%s is set very high!").translated, optname);
+bilingual_str AmountHighWarn(const std::string &optname) {
+    return strprintf(_("%s is set very high!"), optname);
 }
 
-std::string AmountErrMsg(const std::string &optname,
-                         const std::string &strValue) {
-    return strprintf(_("Invalid amount for -%s=<amount>: '%s'").translated,
-                     optname, strValue);
+bilingual_str AmountErrMsg(const std::string &optname,
+                           const std::string &strValue) {
+    return strprintf(_("Invalid amount for -%s=<amount>: '%s'"), optname,
+                     strValue);
 }
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -4884,12 +4884,13 @@
         if (!ParseMoney(gArgs.GetArg("-mintxfee", ""), n) ||
             n == Amount::zero()) {
             chain.initError(
-                AmountErrMsg("mintxfee", gArgs.GetArg("-mintxfee", "")));
+                AmountErrMsg("mintxfee", gArgs.GetArg("-mintxfee", ""))
+                    .translated);
             return nullptr;
         }
         if (n > HIGH_TX_FEE_PER_KB) {
             chain.initWarning(
-                AmountHighWarn("-mintxfee") + " " +
+                AmountHighWarn("-mintxfee").translated + " " +
                 _("This is the minimum transaction fee you pay on "
                   "every transaction.")
                     .translated);
@@ -4907,7 +4908,7 @@
         }
         if (nFeePerK > HIGH_TX_FEE_PER_KB) {
             chain.initWarning(
-                AmountHighWarn("-fallbackfee") + " " +
+                AmountHighWarn("-fallbackfee").translated + " " +
                 _("This is the transaction fee you may pay when fee "
                   "estimates are not available.")
                     .translated);
@@ -4921,12 +4922,13 @@
         Amount nFeePerK = Amount::zero();
         if (!ParseMoney(gArgs.GetArg("-paytxfee", ""), nFeePerK)) {
             chain.initError(
-                AmountErrMsg("paytxfee", gArgs.GetArg("-paytxfee", "")));
+                AmountErrMsg("paytxfee", gArgs.GetArg("-paytxfee", ""))
+                    .translated);
             return nullptr;
         }
         if (nFeePerK > HIGH_TX_FEE_PER_KB) {
             chain.initWarning(
-                AmountHighWarn("-paytxfee") + " " +
+                AmountHighWarn("-paytxfee").translated + " " +
                 _("This is the transaction fee you will pay if you "
                   "send a transaction.")
                     .translated);
@@ -4946,7 +4948,8 @@
         Amount nMaxFee = Amount::zero();
         if (!ParseMoney(gArgs.GetArg("-maxtxfee", ""), nMaxFee)) {
             chain.initError(
-                AmountErrMsg("maxtxfee", gArgs.GetArg("-maxtxfee", "")));
+                AmountErrMsg("maxtxfee", gArgs.GetArg("-maxtxfee", ""))
+                    .translated);
             return nullptr;
         }
         if (nMaxFee > HIGH_MAX_TX_FEE) {
@@ -4967,7 +4970,7 @@
 
     if (chain.relayMinFee().GetFeePerK() > HIGH_TX_FEE_PER_KB) {
         chain.initWarning(
-            AmountHighWarn("-minrelaytxfee") + " " +
+            AmountHighWarn("-minrelaytxfee").translated + " " +
             _("The wallet will avoid paying less than the minimum relay fee.")
                 .translated);
     }