Free Financial Tools for Nigerians
Calculate your taxes, check your thresholds, and understand your money — no signup required. Built by Erin.
All Tools
🧾 Tax Calculators
💰 Personal Finance
Savings Goal Calculator
Find out how long it will take to reach your savings target.
Coming SoonSubscription Cost Calculator
Add up all your subscriptions and see the true annual cost.
Coming Soon💼 Business Tools
Invoice Generator
Create professional invoices in seconds. Download as PDF.
Coming Soon👥 Payroll
Payroll Calculator
Calculate employee salaries, PAYE, pension, and net pay.
Coming SoonWhy are these tools free?
We built Erin to help Nigerians understand their money. These tools are a small part of that mission.
Use them as much as you want — no signup, no catch.
If you want these calculations done automatically, with real-time tracking and smart alerts, that's what Erin does. But no pressure.
Want all this — automated?
Erin tracks your income, calculates your taxes, and shows you your Safe to Spend — in real time. No spreadsheets. No manual calculations.
Or keep using the free tools. We're happy either way.