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Overtime Pay Calculator: How Time-and-a-Half Works (With a $22/hr + 45 Hours Example)

·7 min read

Overtime is usually 1.5× your regular rate after 40 hours/week — but bonuses, different rates, and state rules can change it. This guide walks through the exact math with real examples and a quick “estimate your take-home” framework.

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⚠️ Heads Up

This is for informational purposes only. We are not accountants, tax attorneys, or financial advisors. The information in this article is general and may not apply to your specific situation. Tax laws change frequently. Please consult a qualified tax professional before making financial decisions.

Quick Summary

  • In most jobs, overtime is 1.5× your regular rate after 40 hours/week (but some states use daily overtime rules).
  • Example: at $22/hour, working 45 hours pays $1,045 gross ($880 regular + $165 overtime premium).
  • Overtime can feel “taxed more” because withholding increases when your paycheck is bigger — not because overtime has a special tax rate.
  • Fast planning rule: expect roughly 22%–32% of overtime gross to go to federal + FICA, plus any state tax.

If you’ve ever worked a long week and thought, “Where did my overtime money go?” you’re not alone. The math is simple in the common case — but little details (your employer’s “workweek,” bonuses, different pay rates, and state rules) can change the result.

This guide gives you a clean overtime pay calculator you can do on paper in 60 seconds, plus a way to estimate your take-home pay using your state’s paycheck calculator (try Texas and California as two very different baselines).

How overtime pay works (the simple 1.5× formula)

In the most common setup (non-exempt W-2 job, overtime after 40 hours in a workweek):

Step Formula What it means
1) Regular pay regular hours × hourly rate Usually first 40 hours in the week
2) Overtime hours total hours − 40 Hours over 40 (if your rule is weekly overtime)
3) Overtime pay overtime hours × hourly rate × 1.5 “Time-and-a-half” pay for those overtime hours

One important detail: the “workweek” is a fixed 7-day period your employer defines. It might be Monday–Sunday or Saturday–Friday. Overtime is usually calculated inside that workweek, not your paycheck dates.

💡 Action Tip

Ask payroll one question: “What is our defined workweek for overtime?” That one detail can explain a lot of “why didn’t I get overtime?” confusion.

Example: $22/hour and 45 hours in a week

Let’s calculate it step-by-step using the common 40-hour weekly overtime rule.

📊 Key Number

$22/hour × 45 hours = $1,045 gross for the week (with time-and-a-half after 40).

Piece Math Amount
Regular pay (40 hrs) 40 × $22 $880
Overtime pay (5 hrs) 5 × $22 × 1.5 $165
Total gross $880 + $165 $1,045

Notice what’s really happening: overtime isn’t “all at 1.5×.” It’s only the hours over 40. Your first 40 hours still pay at your normal rate.

Example: $30/hour and 52 hours (why overtime jumps fast)

Now a bigger week: 52 hours at $30/hour.

Piece Math Amount
Regular pay (40 hrs) 40 × $30 $1,200
Overtime pay (12 hrs) 12 × $30 × 1.5 $540
Total gross $1,200 + $540 $1,740

That’s why overtime “jumps” in weeks where you’re consistently staying late. The overtime hours stack on top of a full 40-hour base.

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The “regular rate” trap: bonuses and multiple pay rates

Here’s where a lot of people (and sometimes payroll systems) get it wrong: overtime is based on your regular rate of pay, not always your base hourly rate.

Two common situations that can change your overtime rate:

  • Non-discretionary bonuses (production, attendance, commissions). These often must be included when calculating the regular rate for that period.
  • Multiple hourly rates in the same week (example: $20/hr for one role and $26/hr for another). Your overtime may be based on a weighted average “regular rate.”

⚠️ Heads Up

If your pay stub shows a bonus and you worked overtime the same week, it’s worth checking whether payroll added that bonus into the regular rate. That can change your overtime pay by a noticeable amount over time.

Why overtime feels “taxed more” (and what’s actually happening)

Overtime has a reputation for being “taxed at 50%.” The reality is more boring:

  • Your paycheck is larger, so the withholding formulas take out more dollars.
  • Your employer might withhold bonuses using a flat “supplemental wage” method — which can make that paycheck feel especially aggressive.
  • When you file your tax return, your true tax is based on total annual income. If too much was withheld, you get it back as a refund.

📊 Key Number

A fast planning estimate: for many workers, 22%–32% of overtime gross goes to federal income tax + FICA, plus any state tax (varies a lot by state).

If you want a real estimate (not vibes), calculate your overtime gross, then run the full paycheck in your state calculator (examples: Texas, California). Use the same filing status and deductions you actually have.

State rules that can change overtime (CA daily overtime, etc.)

Many states follow the federal baseline (overtime after 40 hours/week for non-exempt workers). But some states add rules that matter in real life.

One famous example is California, which can require overtime based on hours per day (not just per week) for many employees — and it also has a state payroll deduction called SDI that shows up on paychecks.

💡 Action Tip

If you work in a state with special rules, don’t just ask “Do I get overtime?” Ask: “Is overtime calculated daily, weekly, or both in my role?”

How to put this to work (3 steps + a checklist for payroll)

  1. Calculate your overtime gross for the week using the table above (40-hour baseline unless your state/employer uses daily rules).
  2. Estimate take-home by running the total gross in your state calculator, with your real pre-tax deductions and filing status.
  3. Confirm the rules with payroll so your expectations match how your employer actually computes it.

Payroll checklist (copy/paste):

  • What is our defined workweek for overtime?
  • Am I classified as exempt or non-exempt?
  • Do bonuses/commissions count toward my regular rate for overtime calculations?
  • If I work multiple rates, do you use a weighted average regular rate?

📋 Disclaimer

The numbers in this guide are estimates based on 2026-style federal and state tax assumptions for illustrative purposes. Individual tax situations vary based on filing status, deductions, credits, and employer payroll setup. We are not accountants or tax advisors. Please consult a qualified tax professional before making financial decisions.

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