diff --git a/finance-tracker/.gitignore b/finance-tracker/.gitignore
new file mode 100644
index 0000000..40b878d
--- /dev/null
+++ b/finance-tracker/.gitignore
@@ -0,0 +1 @@
+node_modules/
\ No newline at end of file
diff --git a/finance-tracker/.prettierrc b/finance-tracker/.prettierrc
new file mode 100644
index 0000000..1efd31a
--- /dev/null
+++ b/finance-tracker/.prettierrc
@@ -0,0 +1,4 @@
+{
+  "semi": true,
+  "singleQuote": true
+}
diff --git a/finance-tracker/app.js b/finance-tracker/app.js
index 7cfcd07..2d817ae 100644
--- a/finance-tracker/app.js
+++ b/finance-tracker/app.js
@@ -1,3 +1,33 @@
-// This is the entrypoint for your application.
-// node app.js
+import {
+  addTransaction,
+  getLargestExpense,
+  printAllTransactions,
+  printSummary,
+  getTotalTransactions,
+} from './finance.js';
 
+import chalk from 'chalk';
+
+console.log(chalk.bold(' PERSONAL FINANCE TRACKER \n'));
+
+const transaction = {
+  type: 'expense',
+  category: 'Personal Care',
+  amount: 20,
+  description: 'baber shop',
+  date: '2025-01-30',
+};
+
+addTransaction(transaction);
+
+printAllTransactions();
+printSummary();
+
+const largestExpense = getLargestExpense();
+console.log(
+  chalk.bold(
+    `\nLargest Expense: ${largestExpense.category} (€${largestExpense.amount})`,
+  ),
+);
+
+console.log(chalk.bold(`Total Transactions: ${getTotalTransactions()}`));
diff --git a/finance-tracker/data.js b/finance-tracker/data.js
index d7863ff..94fac0b 100644
--- a/finance-tracker/data.js
+++ b/finance-tracker/data.js
@@ -1,2 +1,51 @@
 // Place here the transaction data array. Use it in your application as needed.
-const transactions = [];
\ No newline at end of file
+export const transactions = [
+  {
+    id: 1,
+    type: 'income',
+    category: 'Salary',
+    amount: 3000,
+    description: 'Monthly salary',
+    date: '2025-01-02',
+  },
+  {
+    id: 2,
+    type: 'expense',
+    category: 'Rent',
+    amount: 1200,
+    description: 'Monthly rent',
+    date: '2025-01-05',
+  },
+  {
+    id: 3,
+    type: 'expense',
+    category: 'Groceries',
+    amount: 300,
+    description: 'food',
+    date: '2025-01-12',
+  },
+  {
+    id: 4,
+    type: 'income',
+    category: 'Freelance',
+    amount: 500,
+    description: 'side-income',
+    date: '2025-01-15',
+  },
+  {
+    id: 5,
+    type: 'expense',
+    category: 'Utilities',
+    amount: 150,
+    description: 'bills',
+    date: '2025-01-20',
+  },
+  {
+    id: 6,
+    type: 'income',
+    category: 'Freelance',
+    amount: 150,
+    description: 'side-income',
+    date: '2025-01-25',
+  },
+];
diff --git a/finance-tracker/finance.js b/finance-tracker/finance.js
index ac2118f..eb2ae67 100644
--- a/finance-tracker/finance.js
+++ b/finance-tracker/finance.js
@@ -1,27 +1,104 @@
-function addTransaction(transaction) {
-  // TODO: Implement this function
+import { transactions } from './data.js';
+import chalk from 'chalk';
+
+export function addTransaction(transaction) {
+  if (!transaction.id) {
+    transaction.id = transactions.length + 1;
+  }
+  transactions.push(transaction);
+  return transactions;
+}
+
+export function getTotalIncome() {
+  let totalIncome = 0;
+  for (const transaction of transactions) {
+    if (transaction.type === 'income') {
+      totalIncome += transaction.amount;
+    }
+  }
+  return totalIncome;
 }
 
-function getTotalIncome() {
-  // TODO: Implement this function
+export function getTotalExpenses() {
+  let totalExpenses = 0;
+  for (const transaction of transactions) {
+    if (transaction.type === 'expense') {
+      totalExpenses += transaction.amount;
+    }
+  }
+  return totalExpenses;
 }
 
-function getTotalExpenses() {
-  // TODO: Implement this function
+export function getBalance() {
+  return getTotalIncome() - getTotalExpenses();
 }
 
-function getBalance() {
-  // TODO: Implement this function
+export function getTransactionsByCategory(category) {
+  let filteredTransactions = [];
+  for (const transaction of transactions) {
+    if (transaction.category === category) {
+      filteredTransactions.push(transaction);
+    }
+  }
+  return filteredTransactions;
 }
 
-function getTransactionsByCategory(category) {
-  // TODO: Implement this function
+export function getLargestExpense() {
+  let largest = null;
+  for (const transaction of transactions) {
+    if (transaction.type === 'expense') {
+      if (largest === null || transaction.amount > largest.amount) {
+        largest = transaction;
+      }
+    }
+  }
+  return largest;
 }
 
-function getLargestExpense() {
-  // TODO: Implement this function
+export function printAllTransactions() {
+  console.log('All Transactions:');
+  let id = 1;
+  for (const transaction of transactions) {
+    const { type, category, amount, description } = transaction;
+
+    // To determine the income or expense, and to set a proper color for display
+    let amountColor = null;
+    if (transaction.type === 'income') {
+      amountColor = chalk.green(`€${amount}`);
+    } else {
+      amountColor = chalk.red(`€${amount}`);
+    }
+
+    console.log(
+      `${id}. [${type.toUpperCase()}] ${chalk.yellow(category)} - ${amountColor} (${description})`,
+    );
+    id++;
+  }
+
+  console.log('\n');
 }
 
-function printAllTransactions() {
-  // TODO: Implement this function
-}
\ No newline at end of file
+export function printSummary() {
+  console.log(chalk.bold('FINANCIAL SUMMARY'));
+  console.log(chalk.green(`Total Income: €${getTotalIncome()}`));
+  console.log(chalk.red(`Total Expenses: €${getTotalExpenses()}`));
+  if (getBalance() >= 0) {
+    console.log(chalk.cyan(`Current Balance: €${getBalance()}`));
+  } else {
+    console.log(chalk.red(`Current Balance: €${getBalance()}`));
+  }
+}
+
+export function getTransactionsByType(type) {
+  let filteredTransactions = [];
+  for (const transaction of transactions) {
+    if (transaction.type === type) {
+      filteredTransactions.push(transaction);
+    }
+  }
+  return filteredTransactions;
+}
+
+export function getTotalTransactions() {
+  return transactions.length;
+}
diff --git a/finance-tracker/package-lock.json b/finance-tracker/package-lock.json
new file mode 100644
index 0000000..148aad2
--- /dev/null
+++ b/finance-tracker/package-lock.json
@@ -0,0 +1,27 @@
+{
+  "name": "finance-tracker",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "finance-tracker",
+      "version": "1.0.0",
+      "dependencies": {
+        "chalk": "^5.6.2"
+      }
+    },
+    "node_modules/chalk": {
+      "version": "5.6.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.6.2.tgz",
+      "integrity": "sha512-7NzBL0rN6fMUW+f7A6Io4h40qQlG+xGmtMxfbnH/K7TAtt8JQWVQK+6g0UXKMeVJoyV5EkkNsErQ8pVD3bLHbA==",
+      "license": "MIT",
+      "engines": {
+        "node": "^12.17.0 || ^14.13 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/chalk?sponsor=1"
+      }
+    }
+  }
+}
diff --git a/finance-tracker/package.json b/finance-tracker/package.json
new file mode 100644
index 0000000..c552168
--- /dev/null
+++ b/finance-tracker/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "finance-tracker",
+  "version": "1.0.0",
+  "description": "",
+  "main": "app.js",
+  "type": "module",
+  "scripts": {
+    "start": "node ./app.js"
+  },
+  "dependencies": {
+    "chalk": "^5.6.2"
+  }
+}