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FBR E-Invoicing SaaS

Aierpify

Helping Pakistani businesses create, manage, and submit compliant digital invoices — from invoice creation to FBR integration, subscriptions, and admin controls.

Pakistani businesses and taxpayersLive production platformVisit Live Site
Aierpify — FBR E-Invoicing SaaS

Aierpify is a cloud-based FBR e-invoicing platform built for Pakistani businesses that need a simpler way to generate tax invoices, manage billing records, and submit invoice data digitally. Bridge Homies designed and developed Aierpify as a complete SaaS product — from invoice creation and customer management to FBR integration, subscriptions, reporting, and administrative controls.

The
Challenge.

Many Pakistani businesses still manage invoices manually through paper records, spreadsheets, or disconnected billing tools. The goal was to build a practical digital invoicing platform that could simplify daily billing while supporting Pakistan's evolving FBR e-invoicing requirements.

01Slow invoice preparation
02Repeated data entry
03Tax calculation errors
04Difficulty maintaining customer and product records
05Limited visibility into billing activity
06Complex FBR submission workflows
07No central system for managing invoices and business data
The Approach

The Solution.

Bridge Homies developed Aierpify as an end-to-end digital invoicing SaaS platform, designed for simplicity, accuracy, and repeatable business workflows so users can manage invoices without depending on technical expertise.

Create professional digital and tax invoices
Manage customers and buyer information
Maintain product and HS-code records
Apply relevant tax fields and invoice details
Submit invoice data to FBR systems
Generate printable invoice documents
Track invoice references and validation responses
Manage subscriptions and account access

Core
Features.

01

Digital Invoice Generation

Create invoices by entering seller, buyer, product, pricing, tax, and transaction details, with structured tax-invoice data for digital submission.

02

FBR Integration

Connects with FBR invoice validation and submission endpoints — payload preparation, submission responses, reference numbers, and validation statuses.

03

Product & HS-Code Management

Maintain product records with relevant HS codes and tax info, including similarity-based HS-code assistance for classification.

04

Customer Management

Save and manage buyer information instead of re-entering customer details on every invoice.

05

Invoice Records & Tracking

Track invoice dates, references, statuses, and submission results across every invoice.

06

Printable Invoices

Generate professional invoice documents with tax details, QR data, and reference information.

07

Subscription-Based SaaS

Businesses access features according to their selected subscription plan.

08

Administrative Dashboard

Monitor total users, invoices, revenue, active subscriptions, and monthly growth.

Technical Implementation
FrontendTanstack Start, React, TypeScript, Tailwind CSS
Backend servicesFastAPI
DatabasePostgreSQL (via Server)
Hosting & deploymentGoogle Cloud Platform
External integrationFBR invoice submission & validation APIs
AuthenticationSecure user authentication & account management
Document generationDynamic invoices with QR and reference data
Under the Hood

Engineering
Challenges.

The hard problems that shaped how Aierpify was actually built.

Handling FBR Data Requirements

FBR invoices require structured fields not normally present in a basic invoice system — seller/buyer info, HS codes, units, quantities, tax values, sale types, SRO details, schedules, and invoice scenarios.

Managing API Validation Responses

FBR responses may include validation errors, rejected invoices, or temporary service issues. Aierpify stores and presents these in a way users can understand and act on.

Simplifying a Complex Workflow

The interface converts a complex tax-compliance submission process into a guided, small-business-friendly invoice-generation workflow.

Maintaining Accurate Invoice Records

The platform preserves invoice details, submission references, tax calculations, and generated documents for reliable billing records.

The
Result.

Aierpify became a production-oriented FBR digital invoicing platform bringing invoice generation, customer handling, product records, tax information, FBR submission, and subscription management into one system.

Complex business rulesGovernment API integrationTax and invoice data structuresSubscription managementRole-based administrationDynamic document generationProduction deployment and ongoing updates
Why It Matters

Business Value.

Faster invoice preparation
Centralized customer and product records
Reduced repetitive data entry
Structured FBR invoice submission
Better visibility into invoice activity
Easier access to printable invoice documents
A scalable foundation for future financial tools

Project
Summary.

ProductAierpify
CategoryFBR E-Invoicing SaaS
Target UsersPakistani businesses and taxpayers
Primary FunctionDigital invoice creation and FBR submission
PlatformWeb-based SaaS
FrontendTanstack Start, React, TypeScript
Backend & DatabaseFastAPI, PostgreSQL
DeploymentGoogle Cloud Platform
Key IntegrationFBR invoice submission & validation APIs
StatusLive production platform

Final
Outcome.

Bridge Homies transformed a complex FBR invoicing requirement into a user-focused SaaS platform that businesses can use to create, manage, validate, and track digital invoices from one place — demonstrating our ability to build serious business software including compliance systems, SaaS platforms, API integrations, dashboards, and billing workflows.