How Overtime Pay Is Calculated: Rules, Rates, and What You're Owed

The basic overtime formula everyone should know

Overtime pay under the Fair Labor Standards Act (FLSA) follows a straightforward formula:

Overtime rate = Regular hourly rate × 1.5

If you're paid $25 per hour and work 48 hours in a week, here's the breakdown:

Run your own hours and rate through our overtime calculator to see your exact weekly, biweekly, or monthly overtime earnings.

Weekly vs daily overtime: which rules apply to you?

Federal law is simple: overtime applies after 40 hours in a workweek. Period. If you work four 10-hour days and have Friday off, you've worked 40 hours. No federal overtime, even though each day exceeded 8 hours.

But some states add their own daily overtime rules on top of the federal standard:

• California: Overtime after 8 hours in a day and double time after 12 hours in a day. Also overtime for the first 8 hours on the 7th consecutive workday, and double time after 8 hours on the 7th day.
• Colorado: Overtime after 12 hours in a day or 40 hours in a week, whichever triggers first.
• Alaska: Overtime after 8 hours in a day for most workers.

If your state has daily overtime rules, you get whichever calculation produces higher pay. Check the Department of Labor's state-by-state overtime guide for your specific location.

Who actually qualifies? The exempt vs non-exempt question

Not everyone gets overtime. The FLSA divides workers into two categories:

Non-exempt: you get overtime

Most hourly workers are non-exempt by default. You track your hours, you get paid for every hour including overtime. Many salaried workers are also non-exempt — being paid a salary doesn't automatically make you exempt from overtime.

Exempt: no overtime required

To be classified as exempt, you generally must meet two tests:

1. Salary test: You earn at least the DOL salary threshold (set at $58,656/year as of the 2025 rulemaking, though this figure has faced legal challenges and may be revised).
2. Duties test: Your primary duties fall under one of the exempt categories — executive, administrative, professional, computer, or outside sales. The duties must involve independent judgment, management, or specialized knowledge.

Here's where misclassification gets common. A worker given the title "manager" but who spends 90% of their time on the same tasks as non-exempt coworkers may not actually qualify as exempt under the duties test. Job title alone doesn't determine classification — the actual work you do matters.

If you're salaried and wonder whether you should be getting overtime, convert your salary to an hourly equivalent with our salary to hourly tool and compare it to what you'd earn with overtime on a per-hour basis.

How overtime affects your paycheck (it's not taxed differently)

A common complaint: "I worked 10 hours of overtime but the extra pay barely showed up after taxes." People hear this and assume overtime gets taxed at some special penalty rate. It doesn't.

Here's what's actually happening. Your payroll system sees a bigger-than-usual paycheck and annualizes it. If your normal biweekly pay is $2,000 and overtime bumps it to $2,600, the system calculates withholding as though you earn $67,600 annually ($2,600 × 26) instead of $52,000 ($2,000 × 26). That higher annualized figure pushes withholding into a higher bracket — even though your actual annual income hasn't changed.

The real tax you owe stays the same. It's only the withholding that's temporarily off. Any over-withholding comes back as a refund when you file. This is the exact same mechanic that makes bonus checks feel smaller — we break it down fully in our bonus tax guide.

To see the real after-tax impact of overtime on your paycheck, use our paycheck calculator. And for a broader look at how your total compensation stacks up, check the step-by-step take-home pay guide.

Four situations where overtime rules trip people up

Working two jobs for the same employer

If you work 30 hours at one location and 15 hours at another location for the same company, that's 45 hours for one employer. You're owed 5 hours of overtime. Some employers try to treat separate locations or departments as independent — that's not how the FLSA works. One employer, one 40-hour threshold.

Comp time instead of overtime pay

Private sector employers generally cannot offer compensatory time off instead of overtime pay. If you worked 45 hours this week, your employer can't say "take Friday off next week and we'll call it even." That's a violation of the FLSA for private employers. Government employees have different rules — comp time is allowed in the public sector under certain conditions.

Unauthorized overtime

You stayed late to finish a project your boss didn't ask you to stay for. Your employer is still required to pay overtime for those hours. The FLSA is clear: if the employer "suffers or permits" the work, they must pay for it. They can discipline you for working unapproved hours, but they cannot refuse to pay.

Averaging hours across two weeks

Some employers try to average hours across a two-week pay period. If you worked 50 hours in week one and 30 hours in week two, they might claim the average is 40 — no overtime. This is wrong. The FLSA calculates overtime on a per-week basis. You're owed 10 hours of overtime for week one, regardless of week two.

How to track overtime and protect yourself

Keep your own records. Don't rely solely on your employer's timekeeping system. A simple spreadsheet or notes app entry each day with your start time, end time, and breaks taken is enough.

• Record your hours daily — memory isn't reliable after a few weeks
• Screenshot pay stubs showing hours worked and overtime paid
• Note any instructions from management about not clocking overtime, working off the clock, or adjusting timecards — these are red flags for FLSA violations
• If you believe you've been denied overtime pay, you can file a complaint with the DOL Wage and Hour Division — there's no cost, and retaliation is illegal

Understanding your rights isn't just about getting paid correctly this week. Back pay claims for overtime violations can cover up to two years of unpaid wages (three years for willful violations). That adds up.

Check how overtime stacks up against your regular earnings with our salary vs hourly pay comparison guide.