GST Billing App Android Studio

GST Billing App Android Studio – In this tutorial I have explain how develop GST (Goods and Service Tax) android application in Android Studio IDE. Actually GST concept has two category CGST (Central) & SGST (State) Government. So here we see how apply the cost for every products and services like state to state or country to state transactions.

Already we have develop GST billing project in PHP language. Therefore if you are looking for web application then once you visit the site. After that you can easily manage your business via our GST android application portal website.

Create Project

Okay let’s start our project to build gst billing android app in vs code or android studio ide which is your wish. Before starting this app you have knowledge about in goods & service tax area. Then only we identify the tricks to solve user queries as well as accomplish government rules and regulations.

gst billing app android studio

Now its very demand project because everyone bill their products using GST concept. Our government also expect this rules. Some of software companies develop standalone application for GST billing app. Here we see how implement user friendly mobile app in android studio.

Create Modules

This project has four modules individually to make a good app for our end user. In below I have explain list of modules which is used by my project & you can change activity name as your wish.

  1. Register/Login User Activity
  2. Account/User management activity
  3. Bill Details activity
  4. Customer/Shop details activity
  5. File Storage Activity.

Bill Details Android

Bill details module has very important so here I explain how its implemented. Java is little bit hard to understand the code, but flutter dart is very simple & it has own template widget. If you like flutter try our article to learn Flutter Projects.

package com.taneja.ajay.gstbilling;

import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class NewBillCustomerActivity extends AppCompatActivity {

    private EditText customerNameEt;
    private EditText phoneNumberEt;

    public static final String ADD_CUSTOMER_NAME_KEY = "customerName";
    public static final String ADD_CUSTOMER_PHONE_KEY = "phoneNumber";

    protected void onCreate(Bundle savedInstanceState) {

        customerNameEt = (EditText) findViewById(;
        phoneNumberEt = (EditText) findViewById(;


    public void addCustomer(View view){
        String customerName = customerNameEt.getText().toString();
        String phoneNumber = phoneNumberEt.getText().toString();
        if(customerName.length() == 0){
            Toast.makeText(this, getString(R.string.enter_customer_name_error), Toast.LENGTH_SHORT).show();
        if(phoneNumber.length() > 0 && phoneNumber.length() < 10){
            Toast.makeText(this, getString(R.string.invalid_phone_number_error), Toast.LENGTH_SHORT).show();
        }else if(phoneNumber.length() == 0){
            phoneNumber = "NA";

        Intent intent = new Intent(this, NewBillActivity.class);
        intent.putExtra(ADD_CUSTOMER_NAME_KEY, customerName);
        intent.putExtra(ADD_CUSTOMER_PHONE_KEY, phoneNumber);


    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(, menu);
        return true;

    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();

        if(id =={
        return super.onOptionsItemSelected(item);

Nowadays every billing under on GST concepts. So most of companies are separately develop GST based web application and mobile application. Because business owners are need to migrate from normal site to GST billing portal.

GST Billing App Android Studio

I hope above procedure will helps you to understand the topic of android billing. Once you got idea, you restrict rules & launch new benefits for your clients. Designs are very important rather than development. Click below button to get free full source code.

Want to read our other programming Tutorials & Projects?

  1. Android App Development Tutorial for Beginners
  2. Banking Android App

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