Updated for 2026 IRS tax rates
Money math, made simple.
Free, private calculators for retirement, paychecks, overtime and debt. Get a clear answer in seconds, with a plain-English guide behind every number.
Based on official IRS data
Nothing you type is saved
Instant results
Retirement
Plan withdrawals and see how long your savings may last.
Paycheck & Taxes
Take-home pay after federal and state taxes.
Overtime & Wages
See what extra hours really add to your paycheck.
Debt & Loans
Find out how fast you can pay off what you owe.
Why people use Bibji
Private by design
Every calculation runs in your browser. No sign-up, and nothing you enter is stored.
Up to date
Built on current IRS tax brackets, limits and tables, and reviewed when the rules change.
Clear visuals
Charts and breakdowns show where every dollar goes, with a simple guide for each tool.