diff --git a/api-payroll/public/js/registerWorkDays.js b/api-payroll/public/js/registerWorkDays.js
index e2f03b2..5579599 100644
--- a/api-payroll/public/js/registerWorkDays.js
+++ b/api-payroll/public/js/registerWorkDays.js
@@ -195,7 +195,7 @@ function saveNewWorkDay(){
         data: parameters,
         success:function(data){
             $('#modalServerResponseSuccess').modal('show');
-            document.getElementById('serverResponseSuccess').innerHTML = 'The employee ' + data['fullName'] + ' has been updated.';
+            document.getElementById('serverResponseSuccess').innerHTML = data['message'];
         },
         error:function(x,e) {
             let responseText = $.parseJSON(x["responseText"]);
diff --git a/api-payroll/src/application/EmployeeApplication.php b/api-payroll/src/application/EmployeeApplication.php
index 9c2c628..22dcadb 100644
--- a/api-payroll/src/application/EmployeeApplication.php
+++ b/api-payroll/src/application/EmployeeApplication.php
@@ -1,6 +1,7 @@
 <?php
 namespace App\Application;
 
+use Exception;
 use phpDocumentor\Reflection\Types\Integer;
 
 class EmployeeApplication{
@@ -54,6 +55,7 @@ class EmployeeApplication{
      * @param $email string
      * @param $phone string
      * @return integer
+     * @throws Exception
      */
     function saveNewPerson($firstName, $middleName, $lastName, $birthDate, $email, $phone){
         $this->asserts->isNotEmpty($firstName, "The first name can't be empty.");
@@ -87,6 +89,7 @@ class EmployeeApplication{
      * @param $code string
      * @param $contractType string
      * @return mixed
+     * @throws Exception
      */
     function savePersonAsEmployee($idEmployeeType, $idPerson, $code, $contractType){
         $this->asserts->higherThanZero($idEmployeeType, "idEmployeeType must be higher than 0");
@@ -115,6 +118,7 @@ class EmployeeApplication{
     /**
      * @param $requestData object
      * @return array
+     * @throws Exception
      */
     function saveNewEmployee($requestData){
         // Getting and validating the data
@@ -578,8 +582,98 @@ class EmployeeApplication{
         return $matches;
     }
 
+    /**
+     * @param $idEmployee integer
+     * @param $date date
+     * @param $baseAmount double
+     * @param $bonusTime double
+     * @param $deliveries double
+     * @return integer
+     * @throws Exception
+     */
+    function saveWorkedDay($idEmployee, $date, $baseAmount, $bonusTime, $deliveries){
+        $this->asserts->isNotEmpty($idEmployee, "The idEmployee can't be empty.");
+        $this->asserts->isNotEmpty($date, "The date can't be empty.");
+        $this->asserts->isNotEmpty($baseAmount, "The base payment per day can't be empty.");
+        $this->asserts->isNotEmpty($bonusTime, "The bonus per worked hours can't be empty.");
+        $this->asserts->isNotEmpty($deliveries, "The payment for deliveries can't be empty.");
+
+        try {
+            $stmt = $this->pdo->prepare("INSERT INTO paymentsPerEmployeePerDay 
+                                          (idEmployee, date, baseAmount, bonusTime, deliveries) 
+                                          VALUES (:idEmployee, :date, :baseAmount, :bonusTime, :deliveries)");
+            $this->pdo->beginTransaction();
+            $stmt->execute(array(':idEmployee' => $idEmployee, ':date' => $date, ':baseAmount' => $baseAmount,
+                ':bonusTime' => $bonusTime, ':deliveries' => $deliveries));
+            $id = $this->pdo->lastInsertId();
+            $this->pdo->commit();
+
+            return $id;
+
+            $stmt = null;
+        } catch( PDOExecption $e ) {
+            $this->pdo->rollback();
+            throw new Exception('There was an error while trying to save the worked day.');
+        }
+    }
+
+    /**
+     * Takes the data from the front end for the new worked day for a
+     * employee and saves it
+     *
+     * @param $requestData object
+     * @return array
+     * @throws Exception
+     */
     function SaveNewWorkDay($requestData){
-        return array('status' => 'success', 'message' => 'Saved...', 'data' => $requestData);
+        $code = $requestData['code'];
+        $this->asserts->isNotEmpty($code, "The code can't be empty.");
+
+        $idEmployee = $this->getIdEmployeeByCode($code);
+        $this->asserts->higherThanZero($idEmployee, "idEmployee must be higher than 0");
+
+        $idEmployeeType = $this->getIdEmployeeTypeByCode($code);
+        $this->asserts->higherThanZero($idEmployeeType, "idEmployeeType must be higher than 0");
+
+        $idEmployeeTypePerformed = $requestData['idEmployeeTypePerformed'];
+        $this->asserts->isNotEmpty($idEmployeeTypePerformed, "The performed rol must be provided.");
+        $this->asserts->higherThanZero($idEmployeeTypePerformed, "idEmployeeTypePerformed must be higher than 0");
+
+        $deliveries = $requestData['deliveries'];
+        $this->asserts->isNotEmpty($deliveries, "The number of deliveries cannot be empty.");
+
+        $date = $requestData['date'];
+        $this->asserts->isNotEmpty($date, "The worked date cannot be empty-.");
+
+        // The emplpoyee can't take that rol
+        if($idEmployeeType != 3 and $idEmployeeType != $idEmployeeTypePerformed){
+            throw new Exception("The performed rol can't be done by this type of employee.");
+        }
+
+        // If we're working on a different month
+        $this->asserts->datesHaveSameMonth($date, date('Y-m-d'), "Work days can only be registered within the same month.");
+
+        $baseAmountPaid = $this->settings['hoursPerWorkDay'] * $this->settings['paymentPerHour'];
+
+        // Getting setting data based on employee type that was performed
+        switch ($idEmployeeTypePerformed) {
+            case 1:
+                $perHourBonus = $this->settings['perHourBonusDriver'];
+                break;
+            case 2:
+                $perHourBonus = $this->settings['perHourBonusLoader'];
+                break;
+            case 3:
+                $perHourBonus = $this->settings['perHourBonusAux'];
+                break;
+        }
+
+        $bonusTime = $perHourBonus * $this->settings['hoursPerWorkDay'];
+        $bonusDeliveries = $deliveries * $this->settings['bonusPerDelivery'];
+
+        $this->saveWorkedDay($idEmployee, $date, $baseAmountPaid, $bonusTime, $bonusDeliveries);
+
+        return array('status' => 'success', 'message' => 'The worked day has been saved.', 'data' => $requestData);
     }
 }
 ?>
\ No newline at end of file
diff --git a/api-payroll/src/service/Asserts.php b/api-payroll/src/service/Asserts.php
index d627334..ce3db51 100644
--- a/api-payroll/src/service/Asserts.php
+++ b/api-payroll/src/service/Asserts.php
@@ -81,5 +81,19 @@ class Asserts{
             throw new Exception($errorMessage);
         }
     }
+
+    /**
+     * Compares two dates to dertermine if they have the same month
+     *
+     * @param $firstDate date
+     * @param $secondDate date
+     * @param $errorMessage string
+     * @throws Exception
+     */
+    function datesHaveSameMonth($firstDate, $secondDate, $errorMessage){
+        if (date("m",strtotime($firstDate)) != date("m",strtotime($secondDate))){
+            throw new Exception($errorMessage);
+        }
+    }
 }
 ?>
diff --git a/api-payroll/src/settings.php b/api-payroll/src/settings.php
index 23e7d09..0e84984 100644
--- a/api-payroll/src/settings.php
+++ b/api-payroll/src/settings.php
@@ -47,7 +47,7 @@ return [
             'codeLength' => '3',
             'contractTypes' => array('INTERNO', 'EXTERNO'),
             'hoursPerWorkDay' => 8,
-            'paymentperHour' => 30,
+            'paymentPerHour' => 30,
             'bonusPerDelivery' => 5,
             'perHourBonusDriver' => 10,
             'perHourBonusLoader' => 5,
diff --git a/database/database.sql b/database/database.sql
index b6466e0..232ae18 100644
--- a/database/database.sql
+++ b/database/database.sql
@@ -82,12 +82,10 @@ CREATE TABLE IF NOT EXISTS `paymentsPerEmployeePerDay` (
   `baseAmount` DOUBLE(10,2) NOT NULL DEFAULT 0.0 comment 'Amount paid for the hours worked',
   `bonusTime` DOUBLE(10,2) NOT NULL DEFAULT 0.0 comment 'Bonus paid for the hours worked',
   `deliveries` DOUBLE(10,2) NOT NULL DEFAULT 0.0 comment 'Bonus for the number of deliveries',
-  `taxes` DOUBLE(10,2) NOT NULL DEFAULT 0.0 comment 'Substracted amout for taxes',
-  `vouchers` DOUBLE(10,2) NOT NULL DEFAULT 0.0 comment 'Amout given in vouchers',
   `status` ENUM('ACTIVE', 'INACTIVE') NOT NULL DEFAULT 'ACTIVE',
   `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP comment 'The date on which the registry was created',
   `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP comment 'The date of the last time the row was modified',
   PRIMARY KEY  (`id`),
   FOREIGN KEY (idEmployee) REFERENCES employees(id),
-  UNIQUE (`idEmployee`, `date`)
+  UNIQUE (`idEmployee`, `date`, `status`)
 );