diff --git a/src/Configuration/Fee.php b/src/Configuration/Fee.php
deleted file mode 100644
index fe9b6e7..0000000
--- a/src/Configuration/Fee.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace ArkEcosystem\Crypto\Configuration;
-
-use ArkEcosystem\Crypto\Enums\Fees;
-use ArkEcosystem\Crypto\Enums\Types;
-use PHPUnit\Util\Type;
-
-class Fee
-{
-    /**
-     * Custom transaction fees.
-     *
-     * @var array
-     */
-    private static $customFees = [];
-
-    /**
-     * Get the transaction fee for the given type.
-     *
-     * @return string
-     */
-    public static function get(int $type): string
-    {
-        return isset(static::$customFees[$type]) ? static::$customFees[$type] : Types::fromValue($type)->defaultFee();
-    }
-
-    /**
-     * Set the transaction fee for the given type.
-     *
-     * @param int    $type
-     * @param string $fee
-     */
-    public static function set(int $type, string $fee): void
-    {
-        static::$customFees[$type] = $fee;
-    }
-}
diff --git a/src/Enums/Fees.php b/src/Enums/Fees.php
deleted file mode 100644
index 4f2da15..0000000
--- a/src/Enums/Fees.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace ArkEcosystem\Crypto\Enums;
-
-class Fees
-{
-    public const TRANSFER = '10000000';
-
-    public const VALIDATOR_REGISTRATION = '2500000000';
-
-    public const VOTE = '100000000';
-
-    public const MULTI_SIGNATURE_REGISTRATION = '500000000';
-
-    public const MULTI_PAYMENT = '10000000';
-
-    public const VALIDATOR_RESIGNATION = '2500000000';
-
-    public const USERNAME_REGISTRATION = '2500000000';
-
-    public const USERNAME_RESIGNATION = '2500000000';
-
-    public const EVM = '5';
-}
diff --git a/src/Enums/Types.php b/src/Enums/Types.php
index ad1955c..78c3898 100644
--- a/src/Enums/Types.php
+++ b/src/Enums/Types.php
@@ -21,21 +21,6 @@ enum Types: int
     case USERNAME_RESIGNATION         = 9;
     case EVM_CALL                     = 10;
 
-    public function defaultFee(): string
-    {
-        return match ($this) {
-            Types::TRANSFER                     => Fees::TRANSFER,
-            Types::VALIDATOR_REGISTRATION       => Fees::VALIDATOR_REGISTRATION,
-            Types::VOTE                         => Fees::VOTE,
-            // Types::MULTI_SIGNATURE_REGISTRATION => Fees::MULTI_SIGNATURE_REGISTRATION,
-            // Types::MULTI_PAYMENT                => Fees::MULTI_PAYMENT,
-            Types::VALIDATOR_RESIGNATION        => Fees::VALIDATOR_RESIGNATION,
-            // Types::USERNAME_REGISTRATION        => Fees::USERNAME_REGISTRATION,
-            // Types::USERNAME_RESIGNATION         => Fees::USERNAME_RESIGNATION,
-            Types::EVM_CALL                     => Fees::EVM,
-        };
-    }
-
     public static function fromValue(int $value): ?self
     {
         $enum = new ReflectionEnum(self::class);
diff --git a/tests/Unit/Configuration/FeeTest.php b/tests/Unit/Configuration/FeeTest.php
deleted file mode 100644
index 654c833..0000000
--- a/tests/Unit/Configuration/FeeTest.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace ArkEcosystem\Tests\Crypto\Unit\Managers;
-
-use ArkEcosystem\Crypto\Configuration\Fee;
-use ArkEcosystem\Tests\Crypto\TestCase;
-
-/**
- * @covers \ArkEcosystem\Crypto\Configuration\Fee
- */
-class FeeTest extends TestCase
-{
-    /** @test */
-    public function it_should_get_the_fee()
-    {
-        $actual = Fee::get(0);
-
-        $this->assertSame('10000000', $actual);
-    }
-
-    /** @test */
-    public function it_should_set_the_fee()
-    {
-        $actual = Fee::get(0);
-        $this->assertSame('10000000', $actual);
-
-        Fee::set(0, '5');
-
-        $actual = Fee::get(0);
-        $this->assertSame('5', $actual);
-    }
-}