diff --git a/lib/services/coins/namecoin/namecoin_wallet.dart b/lib/services/coins/namecoin/namecoin_wallet.dart
index 44a16c802..a51ecd808 100644
--- a/lib/services/coins/namecoin/namecoin_wallet.dart
+++ b/lib/services/coins/namecoin/namecoin_wallet.dart
@@ -2329,9 +2329,9 @@ class NamecoinWallet extends CoinServiceAPI
     }
   }
 
-  int estimateTxFee({required int vSize, required int feeRatePerKB}) {
-    return vSize * (feeRatePerKB / 1000).ceil();
-  }
+  // int estimateTxFee({required int vSize, required int feeRatePerKB}) {
+  //   return vSize * (feeRatePerKB / 1000).ceil();
+  // }
 
   /// The coinselection algorithm decides whether or not the user is eligible to make the transaction
   /// with [satoshiAmountToSend] and [selectedTxFeeRate]. If so, it will call buildTrasaction() and return
@@ -3405,14 +3405,14 @@ class NamecoinWallet extends CoinServiceAPI
   }
 
   // TODO: Check if this is the correct formula for namecoin
-  Amount roughFeeEstimate(int inputCount, int outputCount, int feeRatePerKB) {
-    return Amount(
-      rawValue: BigInt.from(
-          ((42 + (272 * inputCount) + (128 * outputCount)) / 4).ceil() *
-              (feeRatePerKB / 1000).ceil()),
-      fractionDigits: coin.decimals,
-    );
-  }
+  // Amount roughFeeEstimate(int inputCount, int outputCount, int feeRatePerKB) {
+  //   return Amount(
+  //     rawValue: BigInt.from(
+  //         ((42 + (272 * inputCount) + (128 * outputCount)) / 4).ceil() *
+  //             (feeRatePerKB / 1000).ceil()),
+  //     fractionDigits: coin.decimals,
+  //   );
+  // }
 
   Future<Amount> sweepAllEstimate(int feeRate) async {
     int available = 0;
diff --git a/lib/wallets/wallet/impl/namecoin_wallet.dart b/lib/wallets/wallet/impl/namecoin_wallet.dart
index 7ee1d233f..5bc2410b3 100644
--- a/lib/wallets/wallet/impl/namecoin_wallet.dart
+++ b/lib/wallets/wallet/impl/namecoin_wallet.dart
@@ -53,14 +53,18 @@ class NamecoinWallet extends Bip39HDWallet
 
   @override
   int estimateTxFee({required int vSize, required int feeRatePerKB}) {
-    // TODO: implement estimateTxFee
-    throw UnimplementedError();
+    return vSize * (feeRatePerKB / 1000).ceil();
   }
 
+  // TODO: [prio=low] Check if this is the correct formula for namecoin. ECF
   @override
   Amount roughFeeEstimate(int inputCount, int outputCount, int feeRatePerKB) {
-    // TODO: implement roughFeeEstimate
-    throw UnimplementedError();
+    return Amount(
+      rawValue: BigInt.from(
+          ((42 + (272 * inputCount) + (128 * outputCount)) / 4).ceil() *
+              (feeRatePerKB / 1000).ceil()),
+      fractionDigits: cryptoCurrency.fractionDigits,
+    );
   }
 
   @override