Role

Planning · Design · Development (solo)

Web app · Automated payroll calculation

Team

Solo development

Platforms

Web

Date

Mar 2026 - Present

Overview

Payroll calculation comes around every month — automated

Every month, small and mid-sized businesses in the Philippines have to calculate statutory deductions like SSS, PhilHealth, Pag-IBIG, and income tax (BIR) one by one when paying their employees. The rate tables change often, and the more employees there are, the more error-prone and time-consuming it becomes to manage in Excel.

Lite Payroll PH handles these repetitive calculations automatically in the cloud, helping small business owners who can’t afford a dedicated accountant reduce the time and mistakes involved in payroll work.

This tool is meant to help with payroll calculation and is not a substitute for professional tax or accounting advice. Responsibility for final filing and payment rests with the user.

What it does for you

• Automatic statutory deduction calculation — It automatically calculates SSS, PhilHealth, Pag-IBIG, and withholding tax based on the rate tables currently in effect. (When rates change, users are advised to verify.)
• Pay Run management — It organizes everything into a flow where you generate each pay period at once, review it, and then finalize.
• Payslips — Download them as PDF or send them directly to employees’ email.
• Government submission forms — It automatically generates the standard submission forms that are used often.
• Employee management — Register and edit employees, bulk-register via CSV, and view individual payroll history.
• Permission separation · reports — Split permissions into owner / admin / viewer, and download monthly and cumulative reports.

What I focused on most while building it

• I focused most on accuracy — In an area where even a single field being off can throw a filing out of line, I put the most effort into the calculation logic and the review flow (generate → review → finalize). The user reviews and finalizes the final figures.
• The reality of small businesses — Built for the scale of 5 to a few dozen people who can’t afford to keep an accountant, I kept it lightweight so it can be used right in the browser without any installation.
• Protecting sensitive information — Sensitive information such as employees’ government IDs is stored encrypted, and access permissions are kept separate.

Stack

• Front: Next.js (App Router), React, TypeScript, Tailwind CSS, Radix UI
• Backend: Supabase (Postgres + authentication + RLS)
• Email: Brevo (sending payslips)
• Documents: PDF generation (@react-pdf/renderer), Excel (xlsx)
• Other: rate limiting (Upstash), forms · validation (react-hook-form, zod)
• Main screens: employee management, Pay Run, payslips, government forms, reports

Now, and what’s next

I’m refining it with the goal of reducing the time small businesses spend on payroll calculation.

To take a look for yourself, head here: t-assist-bfh6.vercel.app