Tips are taxable income — whether they’re cash, credit card, or pooled. But depending on how much you earn, how you’re paid, and how your employer reports it, the tax impact can look very different from person to person. This calculator helps you estimate how tips affect your taxes so you’re not blindsided at filing time — especially if you’ve ever owed unexpectedly or under-withheld during the year.

Electronic Filing: Finding Your Tracking Number & EFIN in the IRS e-File Application Summary

How to apply for your EFIN with the IRS