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Custom Software DevelopmentFintech

Fintech Solution for Smarter Invoicing

CodeNax case study of a fintech invoice management platform that simplifies invoicing, payment tracking, multi-currency billing, and financial workflows.

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Client

Fintech Client (TBD)

Industry

Fintech

Engagement

Custom Software Development

01

Overview

The client partnered with CodeNax to build a fintech platform to eliminate common billing problems faced by small businesses, freelancers, and agencies. Users had to keep moving between spreadsheets, currency rate converters, and other tools to generate invoices and keep records.

They needed a platform that could track payments, automate financial calculations, and manage client information in a single place. Our solution was designed to be user-friendly and secure. It also gave businesses better visibility of their payment status.

Client Feedback

“The platform has transformed the way our users manage billing. It's easy to use, reliable, and brings the entire invoicing workflow into one place.”

02

The Problem

The client wanted an invoice platform that could do more than just generate bills — one that makes the whole process streamlined. They wanted to build a tool that could help small business owners, freelancers, and agencies manage the billing process all in a single platform centered on simplicity and ease.

Many users still created invoices by hand using generic templates or spreadsheets. Multiple tools were required to manage taxes, apply discounts, track payments, and bill international clients. The businesses had no visibility of whether or not invoices were viewed, paid, or delivered. This made payment tracking difficult and time-consuming.

It was important to simplify invoicing and give businesses greater control of their cash flow, without adding complexity.

03

The Solution

Our fintech platform for invoice management streamlined and standardized the entire billing process, making invoicing more efficient, accurate, and easier to handle.

01

Invoice & Estimate Creation

Create customized invoices with just a couple of clicks.

02

Automated Financial Calculations

Calculate taxes, discounts, and extra charges automatically to reduce manual work and eliminate human errors.

03

Centralized Customer Management

Store and manage all customer information in one location for quicker invoice generation and improved record-keeping.

04

Multi-Currency Support

Bill international clients using multiple currencies, without manual conversions.

05

Invoice Status Tracking

Monitor each invoice, from draft through to payment, with live updates.

06

Flexible Payment Terms

Define payment dates and conditions for different agreements with clients.

07

Estimate-to-Invoice Conversion

Reduce duplication of work and save time by converting approved estimates into bills without re-entering information.

08

PDF Export & Email Delivery

Create professional PDF invoices and email them to clients from within the platform.

The features of this platform combined to simplify financial workflows and reduce administrative work, while giving businesses greater visibility over their billing and payments processes.

04

The Outcome

The finished product gave the client a modern invoicing solution that combined professional billing with practical financial management features.

By reducing manual tasks and bringing the entire invoicing process into one platform, businesses could spend less time on administration and more time serving their customers. The addition of payment tracking, automated calculations, and multi-currency support made the platform suitable for both local and international businesses.

Most importantly, the client achieved their goal of launching a product that felt intuitive for everyday users while providing the financial capabilities expected from a modern invoicing platform.

Tech Stack Used

Frontend

Next.jsTypeScript

Backend

Node.js (NestJS)REST APIs

Database

PostgreSQL

Cloud & Hosting

Vercel — WebAWS — Cloud Infrastructure

CI/CD & DevOps

GitHub Actions — CI/CDDocker

Integrations

PDF Generation — InvoicesExchange Rate API — Multi-CurrencySendGrid — Email Delivery

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