How does automatic categorization work?

A rule-based engine first tries to match merchant names to known categories. An ML classifier handles unknowns. Users can override any categorization, and the system learns from corrections.

How does net worth tracking work?

Users add accounts for assets (savings, investments, property) and liabilities (mortgage, credit card, loans). The net worth tracker aggregates balances daily and shows a trend chart over time.

How does tax deduction tagging work?

Freelancers and self-employed users can tag transactions as tax-deductible with a business expense category. At year end, the tagged transactions are summarized in a Schedule C export format.

Finance & Banking

Build a Personal & Business Expense Tracker with AI - in Hours

ProjectCode generates a complete, production-ready Personal & Business Expense Tracker from a single natural language prompt. In hours instead of months, you get a React frontend, NestJS REST API, PostgreSQL database, and authentication - fully integrated, live-previewed, and deployed to a URL you own.

Estimated build time: 2–4 hours

Build my Expense Tracking now View pricing

Free to start · No credit card required

The Challenge

Why building a Expense Tracking from scratch is hard

Building a Personal & Business Expense Tracker from scratch requires months of development time and significant engineering resources. Teams struggle to coordinate frontend, backend, database, and authentication while managing expense tracking-specific business logic, integrations, and role-based access rules.

What's Included

Everything your Expense Tracking needs

ProjectCode generates a production-ready Expense Tracking with all the modules your team needs from day one.

Bank account and card transaction import via Plaid or CSV

Automated transaction categorization with ML

Budget setting per category with overspend alerts

Receipt attachment to transactions

Monthly and annual spending reports

Net worth tracking with asset and liability accounts

Multi-user household or business account sharing

Tax deduction tagging for self-employed users

Architecture

How it's built

The generated Expense Tracking follows production-grade architecture patterns.

React 18 + TypeScript frontend with role-based dashboards tailored for expense tracking workflows

NestJS REST API with dedicated expense tracking modules, DTOs, validators, and service layer

PostgreSQL relational schema with normalized tables for all expense tracking entities

JWT + Google OAuth authentication with granular permission gates per role

Real-time Socket.IO events for live expense tracking status updates and notifications

Managed hosting with one-click deploy, custom domain, and auto-SSL

Database

PostgreSQL schema designed for Expense Tracking

ProjectCode generates a normalized, indexed PostgreSQL schema with the right tables and relationships for your use case. You own the schema and can evolve it freely.

accounts (id, user_id, name, type, institution, balance, currency, last_synced_at)
transactions (id, account_id, date, amount, merchant, category, subcategory, notes, receipt_url, is_reviewed, tags jsonb)
budgets (id, user_id, period, category, allocated, spent, alert_threshold_pct)
net_worth_snapshots (id, user_id, date, assets jsonb, liabilities jsonb, net_worth)

schema.sql (preview)

-- Generated by ProjectCode
-- Personal & Business Expense Tracker schema

CREATE TABLE accounts__id (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
  -- ... auto-generated columns
);

CREATE TABLE transactions__id (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
  -- ... auto-generated columns
);

CREATE TABLE budgets__id (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
  -- ... auto-generated columns
);

CREATE TABLE net_worth_snapshots__id (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
  -- ... auto-generated columns
);

Tech Stack

Production-ready from day one

Every generated app uses a battle-tested stack you can deploy anywhere and own completely.

Frontend

React 18 + TypeScript + Tailwind CSS

Backend

NestJS 10 + Node.js + TypeScript

Database

PostgreSQL (managed or Supabase)

Auth

Email OTP · Google OAuth · GitHub OAuth

Deployment

Managed hosting · Custom domain · Auto-SSL

AI Models

Claude Sonnet · Claude Opus · Kimi

Try It Now

Example prompt to get started

Copy this prompt into ProjectCode and get a working app in minutes.

ProjectCode prompt

Build a personal and small-business expense tracking app. Include bank account and credit card import via Plaid, ML-based transaction categorization with override capability, monthly category budgets with overspend alerts, receipt photo attachment, shared accounts for couples or business partners, net worth tracking with investment and liability accounts, tax deduction tagging for freelancers, and annual spending summary reports.

Build this now - it's free

Deployment

Deploy your Expense Tracking anywhere

Managed hosting

One-click deploy to a live URL managed by ProjectCode.

Custom domain

Connect your own domain with auto-provisioned SSL via Cloudflare.

GitHub export

Push to your GitHub repo and self-host or deploy via Vercel, Railway, or AWS.

Docker ready

Export a Dockerfile and docker-compose for any containerized environment.

Pricing

Start free, scale as you grow

No per-seat fees. No vendor lock-in. Token-based pricing that scales with your usage.

Free

Start building your first app. Live preview, managed hosting, and full code export included.

Token Packs

From $5

Purchase token packs that roll over every month. Build more, pay only for what you use.

Enterprise

Custom

Custom models, SLA, SSO, and private cloud deployment for large teams.

See full pricing details

FAQ

Common questions about building a Expense Tracking

The app connects to bank accounts via Plaid (US and Canada) or Open Banking APIs (UK/EU). Transactions sync automatically. Users can also import CSV exports from their bank.

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Build your Expense Tracking in hours, not months

Start free. No credit card. Your first app is live in minutes.

Get started free