How We Built a GST Invoice Generator for Freelancers and Teams

A web SaaS for creating invoices, exporting PDFs, handling GST-oriented line items, and managing Stripe subscriptions from an admin dashboard.

The challenge

Freelancers and small teams often rebuild invoices in spreadsheets. Numbering, tax fields, and PDF delivery are easy to get wrong, and recurring billing is a separate chore.

The objective

Put invoice creation, PDF export, GST-oriented fields, and subscription billing in one web application.

The solution

SR Infotech built Invoice Generator SaaS on Flask. It creates invoices, exports PDFs, supports GST-friendly workflows for Indian businesses, bills plans with Stripe, and includes an admin dashboard.

Key features

Invoice creation
PDF export
GST-oriented invoice fields
Stripe subscriptions
Admin dashboard
Customer records

How it works

01
User
02
Flask web app
03
PostgreSQL
04
PDF generation
05
Stripe
06
Admin dashboard

Technology

Flask
PostgreSQL
Stripe
PDF generation

Before

Invoices rebuilt in spreadsheets
PDFs assembled by hand
Recurring billing tracked separately

After

Invoices created from saved customer records
PDF export from the same record
Stripe subscriptions and an admin dashboard

Result

Automated invoice creation, PDF export, and subscription billing in one SaaS app.

Invoicing, PDF delivery, and subscription billing sit in one SaaS application. This page does not claim a measured time saving or revenue change.

Implementation notes

Customer and invoice records live in PostgreSQL. PDFs are generated from those records. Stripe handles subscription billing, and the admin dashboard is where plans and customers are managed.

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These projects are systems SR Infotech has built. A similar engagement is scoped after we understand your workflow.

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