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diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2caa445
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+taxcalculator2/.idea
+taxcalculator2/target
diff --git a/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculator.java b/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculator.java
new file mode 100755
index 0000000..5561522
--- /dev/null
+++ b/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculator.java
@@ -0,0 +1,29 @@
+package nz.ac.massey.cs.sdc.taxcalculator;
+/**
+ * A simple tax calculator implementing the NZ tax rules accourding to
+ * http://www.ird.govt.nz/how-to/taxrates-codes/itaxsalaryandwage-incometaxrates.html
+ * accessed on 9 August 12
+ * @author jens dietrich
+ */
+public class IncomeTaxCalculator {
+
+ double[] brackets = {0,14000,48000,70000};
+ double[] taxRates = {10.5,17.5,30,33};
+ public double calculateIncomeTax(double income) {
+ // disable the next line to introduce an artificial delay - this will cause test cases with timeouts to fail
+ // try {Thread.sleep(200);} catch (Exception x){}
+ if (income<0) throw new IllegalArgumentException("the income must be positive");
+ double tax = 0.0;
+ for (int i=brackets.length-1;i>=0;i--) {
+ double bracket = brackets[i];
+ double taxRate = taxRates[i];
+ if (income>bracket) {
+ double taxableInThisBracket = income-bracket;
+ income = income - taxableInThisBracket;
+ tax = tax + taxableInThisBracket*taxRate/100;
+ }
+ }
+ return tax;
+ }
+
+}
diff --git a/nz/ac/massey/cs/sdc/taxcalculator/ui/TaxCalculatorUI.java b/nz/ac/massey/cs/sdc/taxcalculator/ui/TaxCalculatorUI.java
new file mode 100755
index 0000000..315fe54
--- /dev/null
+++ b/nz/ac/massey/cs/sdc/taxcalculator/ui/TaxCalculatorUI.java
@@ -0,0 +1,145 @@
+
+package nz.ac.massey.cs.sdc.taxcalculator.ui;
+
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
+import java.text.NumberFormat;
+import java.util.Locale;
+import javax.swing.*;
+import nz.ac.massey.cs.sdc.taxcalculator.IncomeTaxCalculator;
+
+/**
+ * Swing based-user interface for the tax calculator.
+ * This class is executable, i.e. it has a main method.
+ * @author Jens Dietrich
+ * @version 1.2
+ * @since 1.1
+ */
+
+public class TaxCalculatorUI extends JFrame {
+
+ private static final long serialVersionUID = -249195317281900474L;
+ // model
+ private IncomeTaxCalculator taxCalculator = new IncomeTaxCalculator();
+ // components
+ NumberFormat numberFormat = NumberFormat.getInstance(Locale.UK);
+ JFormattedTextField incomeField = new JFormattedTextField(numberFormat);
+ JFormattedTextField taxField = new JFormattedTextField(numberFormat);
+ JLabel incomeLabel = new JLabel("Income:");
+ JLabel taxLabel = new JLabel("Income Tax:");
+ JButton computeButton = new JButton("Compute Income Tax");
+ JButton exitButton = new JButton("Exit Application");
+
+ /**
+ * Main method - launch the UI.
+ */
+ public static void main(String[] args) {
+ TaxCalculatorUI application = new TaxCalculatorUI();
+ application.setSize(500,125);
+ application.setLocation(400,300);
+ application.setResizable(false);
+ application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ application.setVisible(true);
+ }
+
+
+ public IncomeTaxCalculator getTaxCalculator() {
+ return taxCalculator;
+ }
+ public void setTaxCalculator(IncomeTaxCalculator taxCalculator) {
+ this.taxCalculator = taxCalculator;
+ }
+
+ /**
+ * Constructor.
+ */
+ public TaxCalculatorUI() {
+ super("Tax Calculator");
+ init();
+ }
+ /**
+ * Initialize the user interface.
+ */
+ private void init() {
+ JPanel contentPane = new JPanel(new BorderLayout(5,5));
+ this.setContentPane(contentPane);
+
+ taxField.setEditable(false);
+
+ JPanel main = new JPanel();
+ main.setLayout(new GridLayout(2,3,5,5));
+ main.add(incomeLabel);
+ main.add(taxLabel);
+ main.add(incomeField);
+ main.add(taxField);
+ main.setBorder(BorderFactory.createEmptyBorder(5,25,5,25));
+ contentPane.add(main,BorderLayout.CENTER);
+
+ JPanel toolbar = new JPanel(new FlowLayout(FlowLayout.CENTER));
+ toolbar.add(computeButton);
+ computeButton.setMnemonic('c');
+ toolbar.add(exitButton);
+ exitButton.setMnemonic('x');
+ contentPane.add(toolbar,BorderLayout.SOUTH);
+
+ computeButton.addActionListener(
+ new ActionListener() {
+ public void actionPerformed(ActionEvent e) {
+ computeIncomeTax();
+ }
+ }
+ );
+ exitButton.addActionListener(
+ new ActionListener() {
+ public void actionPerformed(ActionEvent e) {
+ dispose();
+ }
+ }
+ );
+ this.incomeField.addKeyListener(
+ new KeyListener() {
+
+ public void keyPressed(KeyEvent e) {
+ taxField.setText("");
+ }
+ public void keyReleased(KeyEvent e) {
+ taxField.setText("");
+ }
+ public void keyTyped(KeyEvent e) {
+ taxField.setText("");
+ }
+ }
+ );
+ }
+ /**
+ * Compute the income tax.
+ */
+ private void computeIncomeTax() {
+ try {
+ String incomeAsText = this.incomeField.getText();
+ double income = Double.valueOf(""+numberFormat.parse(incomeAsText));
+ double tax = this.taxCalculator.calculateIncomeTax(income);
+ this.taxField.setValue(tax);
+ }
+ catch (Exception x) {
+ handleException(x);
+ }
+ }
+ /**
+ * Handle exceptions.
+ * @param x an exception
+ */
+ private void handleException(Throwable x) {
+ x.printStackTrace();
+ JOptionPane.showMessageDialog(this,"<html>An error has occured.<br>Details have been logged</html>","Error",JOptionPane.ERROR_MESSAGE);
+ this.taxField.setText("");
+ }
+
+
+ }
+
+
+
diff --git a/taxcalculator2/pom.xml b/taxcalculator2/pom.xml
new file mode 100644
index 0000000..1f86606
--- /dev/null
+++ b/taxcalculator2/pom.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <groupId>nz.ac.massey.sdc</groupId>
+ <artifactId>taxcalculator</artifactId>
+ <version>1.0-SNAPSHOT</version>
+
+ <dependencies>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>4.11</version>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.json</groupId>
+ <artifactId>json</artifactId>
+ <version>20160810</version>
+ </dependency>
+ <dependency>
+ <groupId>log4j</groupId>
+ <artifactId>log4j</artifactId>
+ <version>1.2.17</version>
+ </dependency>
+ </dependencies>
+
+</project>
\ No newline at end of file
diff --git a/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculator.java b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculator.java
new file mode 100755
index 0000000..097178e
--- /dev/null
+++ b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculator.java
@@ -0,0 +1,25 @@
+package nz.ac.massey.cs.sdc.taxcalculator;
+/**
+ * A simple tax calculator implementing the NZ tax rules accourding to
+ * http://www.ird.govt.nz/how-to/taxrates-codes/itaxsalaryandwage-incometaxrates.html
+ * accessed on 9 August 12
+ * @author jens dietrich
+ */
+public class IncomeTaxCalculator {
+
+ public double calculateIncomeTax(double income) {
+ // disable the next line to introduce an artificial delay - this will cause test cases with timeouts to fail
+ // try {Thread.sleep(200);} catch (Exception x){}
+ if (income<0) throw new IllegalArgumentException("the income must be positive");
+ TaxBracket[] brackets = MasterDataReader.getTaxBrackets();
+ double tax = 0.0;
+ for (TaxBracket bracket:brackets) {
+ if (income>bracket.getStart()) {
+ double taxableInThisBracket = income>bracket.getEnd()?bracket.getEnd()- bracket.getStart():income-bracket.getStart();
+ tax = tax + taxableInThisBracket*bracket.getTaxRate()/100;
+ }
+ }
+ return tax;
+ }
+
+}
diff --git a/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/MasterDataReader.java b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/MasterDataReader.java
new file mode 100644
index 0000000..d691843
--- /dev/null
+++ b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/MasterDataReader.java
@@ -0,0 +1,45 @@
+package nz.ac.massey.cs.sdc.taxcalculator;
+
+import org.apache.log4j.BasicConfigurator;
+import org.apache.log4j.Logger;
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.json.JSONTokener;
+import java.io.File;
+import java.io.FileInputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Utility to read tax brackets.
+ * @author jens dietrich
+ */
+public class MasterDataReader {
+ public static TaxBracket[] getTaxBrackets() {
+ BasicConfigurator.configure();
+ Logger logger = Logger.getLogger(MasterDataReader.class);
+
+ String taxbracketDefs = "taxbrackets.json";
+ try {
+ List<TaxBracket> brackets = new ArrayList<TaxBracket>();
+ logger.info("importing tax brackets from " + new File(taxbracketDefs).getAbsolutePath());
+ FileInputStream in = new FileInputStream(taxbracketDefs);
+ JSONTokener tokener = new JSONTokener(in);
+ JSONArray jsonArray = new JSONArray(tokener);
+ for (int i=0;i<jsonArray.length();i++) {
+ JSONObject jsonObj = jsonArray.getJSONObject(i);
+ TaxBracket bracket = new TaxBracket(
+ jsonObj.getDouble("start"),
+ jsonObj.getDouble("end")==-1?Double.MAX_VALUE:jsonObj.getDouble("end"),
+ jsonObj.getDouble("rate")
+ );
+ brackets.add(bracket);
+ }
+ return brackets.toArray(new TaxBracket[jsonArray.length()]);
+ }
+ catch (Exception x) {
+ logger.error("exception importing tax brackets from " + new File(taxbracketDefs).getAbsolutePath(),x);
+ throw new IllegalStateException("Cannot initialise data needed");
+ }
+ }
+}
diff --git a/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/TaxBracket.java b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/TaxBracket.java
new file mode 100644
index 0000000..54f0878
--- /dev/null
+++ b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/TaxBracket.java
@@ -0,0 +1,69 @@
+package nz.ac.massey.cs.sdc.taxcalculator;
+
+/**
+ * Class representing a tax bracket.
+ * @author jens dietrich
+ */
+
+
+public class TaxBracket {
+ private double start = 0;
+ private double end = 0;
+ private double taxRate = 0;
+
+ public TaxBracket(double start, double end, double taxRate) {
+ this.start = start;
+ this.end = end;
+ this.taxRate = taxRate;
+ }
+
+ public double getStart() {
+ return start;
+ }
+
+ public void setStart(double start) {
+ this.start = start;
+ }
+
+ public double getEnd() {
+ return end;
+ }
+
+ public void setEnd(double end) {
+ this.end = end;
+ }
+
+ public double getTaxRate() {
+ return taxRate;
+ }
+
+ public void setTaxRate(double taxRate) {
+ this.taxRate = taxRate;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) return true;
+ if (o == null || getClass() != o.getClass()) return false;
+
+ TaxBracket that = (TaxBracket) o;
+
+ if (Double.compare(that.start, start) != 0) return false;
+ if (Double.compare(that.end, end) != 0) return false;
+ return Double.compare(that.taxRate, taxRate) == 0;
+
+ }
+
+ @Override
+ public int hashCode() {
+ int result;
+ long temp;
+ temp = Double.doubleToLongBits(start);
+ result = (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(end);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(taxRate);
+ result = 31 * result + (int) (temp ^ (temp >>> 32));
+ return result;
+ }
+}
diff --git a/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/ui/TaxCalculatorUI.java b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/ui/TaxCalculatorUI.java
new file mode 100755
index 0000000..315fe54
--- /dev/null
+++ b/taxcalculator2/src/main/java/nz/ac/massey/cs/sdc/taxcalculator/ui/TaxCalculatorUI.java
@@ -0,0 +1,145 @@
+
+package nz.ac.massey.cs.sdc.taxcalculator.ui;
+
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
+import java.text.NumberFormat;
+import java.util.Locale;
+import javax.swing.*;
+import nz.ac.massey.cs.sdc.taxcalculator.IncomeTaxCalculator;
+
+/**
+ * Swing based-user interface for the tax calculator.
+ * This class is executable, i.e. it has a main method.
+ * @author Jens Dietrich
+ * @version 1.2
+ * @since 1.1
+ */
+
+public class TaxCalculatorUI extends JFrame {
+
+ private static final long serialVersionUID = -249195317281900474L;
+ // model
+ private IncomeTaxCalculator taxCalculator = new IncomeTaxCalculator();
+ // components
+ NumberFormat numberFormat = NumberFormat.getInstance(Locale.UK);
+ JFormattedTextField incomeField = new JFormattedTextField(numberFormat);
+ JFormattedTextField taxField = new JFormattedTextField(numberFormat);
+ JLabel incomeLabel = new JLabel("Income:");
+ JLabel taxLabel = new JLabel("Income Tax:");
+ JButton computeButton = new JButton("Compute Income Tax");
+ JButton exitButton = new JButton("Exit Application");
+
+ /**
+ * Main method - launch the UI.
+ */
+ public static void main(String[] args) {
+ TaxCalculatorUI application = new TaxCalculatorUI();
+ application.setSize(500,125);
+ application.setLocation(400,300);
+ application.setResizable(false);
+ application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ application.setVisible(true);
+ }
+
+
+ public IncomeTaxCalculator getTaxCalculator() {
+ return taxCalculator;
+ }
+ public void setTaxCalculator(IncomeTaxCalculator taxCalculator) {
+ this.taxCalculator = taxCalculator;
+ }
+
+ /**
+ * Constructor.
+ */
+ public TaxCalculatorUI() {
+ super("Tax Calculator");
+ init();
+ }
+ /**
+ * Initialize the user interface.
+ */
+ private void init() {
+ JPanel contentPane = new JPanel(new BorderLayout(5,5));
+ this.setContentPane(contentPane);
+
+ taxField.setEditable(false);
+
+ JPanel main = new JPanel();
+ main.setLayout(new GridLayout(2,3,5,5));
+ main.add(incomeLabel);
+ main.add(taxLabel);
+ main.add(incomeField);
+ main.add(taxField);
+ main.setBorder(BorderFactory.createEmptyBorder(5,25,5,25));
+ contentPane.add(main,BorderLayout.CENTER);
+
+ JPanel toolbar = new JPanel(new FlowLayout(FlowLayout.CENTER));
+ toolbar.add(computeButton);
+ computeButton.setMnemonic('c');
+ toolbar.add(exitButton);
+ exitButton.setMnemonic('x');
+ contentPane.add(toolbar,BorderLayout.SOUTH);
+
+ computeButton.addActionListener(
+ new ActionListener() {
+ public void actionPerformed(ActionEvent e) {
+ computeIncomeTax();
+ }
+ }
+ );
+ exitButton.addActionListener(
+ new ActionListener() {
+ public void actionPerformed(ActionEvent e) {
+ dispose();
+ }
+ }
+ );
+ this.incomeField.addKeyListener(
+ new KeyListener() {
+
+ public void keyPressed(KeyEvent e) {
+ taxField.setText("");
+ }
+ public void keyReleased(KeyEvent e) {
+ taxField.setText("");
+ }
+ public void keyTyped(KeyEvent e) {
+ taxField.setText("");
+ }
+ }
+ );
+ }
+ /**
+ * Compute the income tax.
+ */
+ private void computeIncomeTax() {
+ try {
+ String incomeAsText = this.incomeField.getText();
+ double income = Double.valueOf(""+numberFormat.parse(incomeAsText));
+ double tax = this.taxCalculator.calculateIncomeTax(income);
+ this.taxField.setValue(tax);
+ }
+ catch (Exception x) {
+ handleException(x);
+ }
+ }
+ /**
+ * Handle exceptions.
+ * @param x an exception
+ */
+ private void handleException(Throwable x) {
+ x.printStackTrace();
+ JOptionPane.showMessageDialog(this,"<html>An error has occured.<br>Details have been logged</html>","Error",JOptionPane.ERROR_MESSAGE);
+ this.taxField.setText("");
+ }
+
+
+ }
+
+
+
diff --git a/taxcalculator2/src/test/java/test/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculatorBatchTest.java b/taxcalculator2/src/test/java/test/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculatorBatchTest.java
new file mode 100755
index 0000000..90104f7
--- /dev/null
+++ b/taxcalculator2/src/test/java/test/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculatorBatchTest.java
@@ -0,0 +1,66 @@
+package test.nz.ac.massey.cs.sdc.taxcalculator;
+
+import java.util.Arrays;
+import java.util.Collection;
+import static org.junit.Assert.*;
+import nz.ac.massey.cs.sdc.taxcalculator.IncomeTaxCalculator;
+import org.junit.*;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+/**
+ * Use parameterised tests to create tests quickly from data table.
+ * @author jens dietrich
+ */
+
+@RunWith(value = Parameterized.class)
+public class IncomeTaxCalculatorBatchTest {
+
+ private IncomeTaxCalculator calculator = null;
+
+ private double income = 0.0;
+ private double expectedIncomeTax = 0.0;
+
+ public IncomeTaxCalculatorBatchTest(double income, double expectedIncomeTax) {
+ super();
+ this.income = income;
+ this.expectedIncomeTax = expectedIncomeTax;
+ }
+
+ @Parameters
+ public static Collection<Object[]> data() {
+ Object[][] data = new Object[][] {
+ { 0,0},
+ { 10000,1050.0 } ,
+ { 20000,2520.0 } ,
+ { 30000,4270.0 } ,
+ { 40000,6020.0 } ,
+ { 50000,8020.0 } ,
+ { 60000,11020.0 } ,
+ { 70000,14020.0 } ,
+ { 80000,17320.0 } ,
+ { 90000,20620.0 } ,
+ { 100000,23920.0 }
+
+ };
+ return Arrays.asList(data);
+ }
+
+
+ @Before
+ public void setup() {
+ calculator = new IncomeTaxCalculator();
+ }
+ @After
+ public void tearDown() {
+ calculator = null;
+ }
+
+ @Test
+ public void test() {
+ double tax = calculator.calculateIncomeTax(this.income);
+ assertEquals(this.expectedIncomeTax,tax,0.01);
+ }
+
+}
diff --git a/taxcalculator2/src/test/java/test/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculatorTest.java b/taxcalculator2/src/test/java/test/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculatorTest.java
new file mode 100755
index 0000000..6435d58
--- /dev/null
+++ b/taxcalculator2/src/test/java/test/nz/ac/massey/cs/sdc/taxcalculator/IncomeTaxCalculatorTest.java
@@ -0,0 +1,91 @@
+package test.nz.ac.massey.cs.sdc.taxcalculator;
+
+import nz.ac.massey.cs.sdc.taxcalculator.IncomeTaxCalculator;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Tests cases for the income tax calculator based on the examples on the IRD web site:
+ * http://www.ird.govt.nz/how-to/taxrates-codes/itaxsalaryandwage-incometaxrates.html
+ * accessed on 9 August 12.
+ * @author jens dietrich
+ */
+public class IncomeTaxCalculatorTest {
+
+ private IncomeTaxCalculator calculator = null;
+
+ @Before
+ public void setup() {
+ calculator = new IncomeTaxCalculator();
+ }
+ @After
+ public void tearDown() {
+ calculator = null;
+ }
+
+ @Test
+ public void test1() {
+ double tax = calculator.calculateIncomeTax(65238);
+ assertEquals(12591.40,tax,0.01);
+ }
+
+ @Test
+ public void test2() {
+ double tax = calculator.calculateIncomeTax(45000);
+ assertEquals(6895.0,tax,0.01);
+ }
+
+ // boundary tests
+ @Test
+ public void testZero() {
+ double tax = calculator.calculateIncomeTax(0);
+ assertEquals(0,tax,0.01);
+ }
+
+ @Test
+ public void testSmallIncome() {
+ double tax = calculator.calculateIncomeTax(10);
+ assertEquals(1.05,tax,0.01);
+ }
+
+ @Test
+ public void testLargeIncome() {
+ double tax = calculator.calculateIncomeTax(Integer.MAX_VALUE);
+ // should be very close to the max tax rate
+ assertEquals(0.33*Integer.MAX_VALUE,tax,Integer.MAX_VALUE*0.001);
+ }
+
+ @Test
+ public void testNegativeIncome1() {
+ try {
+ @SuppressWarnings("unused")
+ double tax = calculator.calculateIncomeTax(-42);
+ assertTrue(false);
+ }
+ catch (IllegalArgumentException x) {
+ assertTrue(true);
+ }
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testNegativeIncome2() {
+ calculator.calculateIncomeTax(-42);
+ }
+
+ @Test(timeout=100)
+ public void test1InclPerformance() {
+ double tax = calculator.calculateIncomeTax(65238);
+ assertEquals(12591.40,tax,0.01);
+ }
+
+ @Test(timeout=100)
+ public void test2InclPerformance() {
+ double tax = calculator.calculateIncomeTax(45000);
+ assertEquals(6895.0,tax,0.01);
+ }
+
+}
diff --git a/taxcalculator2/taxbrackets.json b/taxcalculator2/taxbrackets.json
new file mode 100644
index 0000000..89fac84
--- /dev/null
+++ b/taxcalculator2/taxbrackets.json
@@ -0,0 +1,22 @@
+[
+ {
+ "start": 0,
+ "end":14000,
+ "rate":10.5
+ },
+ {
+ "start": 14000,
+ "end":48000,
+ "rate":17.5
+ },
+ {
+ "start": 48000,
+ "end":70000,
+ "rate":30
+ },
+ {
+ "start": 70000,
+ "end":-1,
+ "rate":33
+ }
+]

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