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CalcHandy

Guides

Calculators give you a number. These guides explain where the number comes from: the rules, the exceptions and the mistakes to avoid. Each guide links to the calculator it supports, cites official sources and shows the date it was last checked.

No Tax on Overtime: What Counts and What You Actually Keep
What the federal overtime deduction covers, who qualifies, the limits and how to claim it, with worked examples.
No Tax on Tips: Who Qualifies and How to Claim It
How the federal tips deduction works: who qualifies, what counts as a qualified tip, how much it saves and how to claim it on your return.
How Overtime Pay Is Calculated: Regular Rate, Salary and Daily Rules
How overtime pay is calculated under federal law, with examples for hourly pay, bonuses, salaried workers and daily overtime rules.

How we write our guides

Every guide starts with the questions people actually ask, then answers them with the official rule, a worked example and the exceptions that change the answer. We link to the source we used, such as IRS guidance, Department of Labor rules or a platform's own fee page, and we show when we last checked it. When a rule changes, we update the guide and record material corrections on our How We Calculate page.

What to expect

Suggest a guide

Is there a rule or a number you find confusing? Tell us on the contact page and we will consider it for the next guide.