Source: https://clockwage44.com/tools/first-paycheck-calculator/

ClockWage44 is a free hours and pay tracker app for iOS and Android: log shifts across every job and see take-home pay after federal tax, state tax, FICA, overtime and deductions.

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# First Paycheck Calculator

Starting a new job? See when your first paycheck lands, how many hours it covers, and its take-home after 2026 withholding, next to your first full check.

_Interactive tool: open [the web page](https://clockwage44.com/tools/first-paycheck-calculator/) to use it. This Markdown copy has the text only._

A new job's first paycheck can come later and smaller than the ones after it: you may start partway through a pay period, and payday comes days after that period closes. Enter your first day, your pay schedule and your shifts. You'll see the date of your first check, the hours it covers, and what it takes home after 2026 withholding, next to the first full check that follows.

Estimates only, not tax or legal advice. 2026 IRS Pub 15-T withholding and 2026 state schedules.

Withholding is a prepayment: the extra counts toward your 2026 tax when you file, and comes back as part of a refund if you've overpaid.

Estimates only, not tax or legal advice. 2026 IRS Pub 15-T withholding tables; state figures from each state's revenue department or statute.

## How your first payday is set

A paycheck pays for a pay period that has already closed. Payroll totals the period's hours, and payday comes a set number of days after the period ends. That gap is the lag, and it's why your first check comes days or weeks after your first shift.

Take the default example above. A biweekly pay period runs from Sunday, October 25 to Saturday, November 7, 2026, and you start on Monday, November 2, so that period holds 5 of your workdays. Payday is 6 days after the period closes, on Friday, November 13: 11 days after your first shift. If your employer pays one week further behind (a 13-day lag), the period you start in runs November 1 to 14 instead. Your first check is then a full one, but it comes on November 27, 25 days after you start.

Weekly and biweekly paydays always land on the same weekday, so one payday from your offer letter or HR fixes the whole schedule. Semimonthly and monthly periods follow the calendar instead (the 1st to the 15th and the 16th to the end of the month, or the whole month), and a payday that lands on a weekend moves to the Friday before or the Monday after, depending on the employer. On a semimonthly schedule paid 5 days after each period ends, the November 16 to 30 period's payday falls on Saturday, December 5, so an employer that pays the Friday before pays it on Friday, December 4.

Then there's the payroll cutoff. A new hire entered after a period's payroll closes gets paid on the next run. Texas A&M University–Corpus Christi's [payroll FAQ](https://www3.tamucc.edu/payroll/frequently-asked-questions.php) gives an example for its monthly-paid staff: "if you are hired with a start date of 8.26.2025, this would be after the August monthly payroll calculated. You will have missed the August monthly payroll, which pays on 9.03.2025. The 5 days you worked in August would be paid to you when you receive your September paycheck on 10.01.2025."

How soon you must be paid depends on your state. The U.S. Department of Labor keeps a [table of state payday requirements](https://www.dol.gov/agencies/whd/state/payday). California, for example, requires weekly and biweekly wages, and semimonthly wages for periods other than the 1st to the 15th and the 16th to the end of the month, to be paid "within seven calendar days of the end of the payroll period within which the wages were earned" ([California Labor Commissioner](https://www.dir.ca.gov/dlse/FAQ_Paydays.htm)).

## Why the first check is smaller, and why less tax comes out of it

The first check is short because it covers only the days you worked. In the default example you start on day 9 of a 14-day period and work 5 of its 10 weekdays: 40 hours, against 80 on the next check. Start on the Wednesday instead and it's 24 hours. Here are the two checks side by side ($20 an hour, 8 hours Monday to Friday, single, Illinois):

| Line | First check | Next check |
| - | - | - |
| Hours from | Nov 2 – Nov 7 | Nov 8 – Nov 21 |
| Payday | Fri, Nov 13 | Fri, Nov 27 |
| Workdays and hours | 5 days, 40.00 hours | 10 days, 80.00 hours |
| **Gross pay** | **$800.00** | **$1,600.00** |
| Federal income tax withheld | $18.08 | $108.15 |
| Social Security (6.2%) | $49.60 | $99.20 |
| Medicare (1.45%) | $11.60 | $23.20 |
| Illinois income tax | $34.03 | $73.63 |
| **Take-home** | **$686.69** | **$1,295.82** |
| Federal withholding rate | 2.3% | 6.8% |

Half the hours, but about a sixth of the federal withholding. That comes from how payroll works out the tax. Under the percentage method for automated payroll systems in IRS [Publication 15-T](https://www.irs.gov/pub/irs-pdf/p15t.pdf), the employer multiplies the check by the number of paydays in a year and treats the result as your annual pay:

1. $800.00 x 26 biweekly paydays = $20,800 a year.
2. Minus the $8,600 Worksheet 1A adjustment for a single filer = $12,200.
3. The single table withholds 10% of the part over $7,500: ($12,200 − $7,500) x 10% = $470.00 a year.
4. Divided back by 26, that's $18.08 for this check.

Run the full $1,600.00 check the same way and it annualizes to $41,600, or $33,000 after the adjustment, which reaches the 12% row: $1,240 + ($33,000 − $19,900) x 12% = $2,812.00 a year, or $108.15 a check. A $480.00 Wednesday-start check annualizes to $12,480, which leaves $3,880 after the adjustment, under the $7,500 where withholding starts, so nothing comes out at all.

A lower rate on the first check doesn't mean you owe less tax. Withholding is a prepayment. Your real tax is worked out on your return, where all of the year's checks count together (IRS [Publication 505](https://www.irs.gov/publications/p505)). Social Security and Medicare don't annualize at all: they're a flat 6.2% and 1.45% of every check, short or full, so they shrink only with your gross.

## Missed the cutoff? The later, bigger first check

If your start is entered after payroll closes, the hours from your first period wait for the next payday and arrive together with the next period's. In the default example, nothing comes on November 13. On November 27 you get one check for 120 hours: $2,400.00 gross.

Payroll withholds on that check as if it were one period's pay. IRS [Publication 15](https://www.irs.gov/pub/irs-pdf/p15.pdf) says that when supplemental wages are paid with regular wages and the two amounts aren't specified, the employer withholds "as if the total were a single payment for a regular payroll period." The flat 22% option for pay that is identified separately is open only to an employer that withheld from your regular wages in the current or the previous calendar year, and a new employer hasn't. Either way, the whole check is annualized: $2,400 x 26 = $62,400.

That puts $204.15 of federal income tax on the combined check. On time, the two checks would have had $18.08 and $108.15 withheld, $126.23 in all, so combining adds $77.92 of federal withholding, plus $5.57 of Illinois tax: $83.49 in all. Start on the Wednesday and miss the cutoff, and the extra federal withholding is $57.60. Like any over-withholding, the extra counts toward your 2026 tax and comes back in a refund if you've paid too much.

The bigger cost is the wait. In that example 25 days pass between your first shift and your first money, against 11 if you'd made the cutoff. If you can, ask HR which payroll your start date makes, and plan your first month around the later date.

## What this estimate leaves out

The calculator sticks to timing and partial-period pay. It leaves out benefit and 401(k) deductions: if yours start after a waiting period, your first checks may have fewer deductions than later ones. Federal withholding covers a W-4 with only a filing status, so Steps 2 to 4 (multiple jobs, dependents, other income and extra withholding) aren't in it. The [W-4 withholding calculator](https://clockwage44.com/tools/w4-withholding-calculator/) covers those. State tax is an estimate from each state's 2026 schedule, not its withholding formula, and local income taxes, SDI and paid-leave contributions aren't included. Holidays aren't modeled, and neither is an off-cycle check for missed hours.

To watch your real first check take shape, log each shift on the [ClockWage44](https://clockwage44.com/#download) week grid from your first day. The paycheck editor opens on the current pay period and shows the take-home live as the hours add up, with the state, filing status and pay period from your Tax Profile.

## Frequently Asked Questions

Common questions about first paycheck calculator

### When will I get my first paycheck at a new job?

On the payday for the pay period you start in, which comes after that period closes. Two things set the date: when the period ends, and how many days payroll takes after that (the lag). Say you start Monday, November 2, 2026 on a biweekly schedule. The period ends Saturday, November 7, payday is the following Friday, and your first check comes Friday, November 13, 11 days after you start. If each Friday payday instead covers the period that ended 13 days earlier, your first check is a full one but comes November 27, 25 days after you start. Ask HR for one payday and the lag, and the calculator does the rest. To map every payday after that, use the [pay period calculator](https://clockwage44.com/tools/pay-period-calculator/).

### Why is my first paycheck smaller than my regular ones?

Because it can cover only part of a pay period. In the November 2 example, you work 5 of the period's 10 workdays, so the first check is 40 hours ($800.00 gross at $20 an hour) against 80 hours on the next one. After withholding it takes home $686.69, against $1,295.82. Start on the Wednesday instead and it's 24 hours and $425.09. The first full check comes on the next payday. If a check comes in low for some other reason, see[why your paycheck is lower than expected](https://clockwage44.com/blog/why-is-my-paycheck-lower-than-expected/).

### Is my first paycheck taxed more?

A short first check is withheld at a _lower_ rate. Under the percentage method the IRS gives employers with automated payroll systems (Pub 15-T), payroll multiplies the check by the number of paydays in a year, so a half check is treated as a half-size salary. That $800.00 biweekly check has $18.08 of federal income tax withheld, 2.3% of gross. The full $1,600.00 check has $108.15 withheld, 6.8%. Start mid-week and the $480.00 first check has none withheld at all. The exception is a missed payroll cutoff (next question). Social Security (6.2%) and Medicare (1.45%) take the same share of every check.

### What happens if I start after the payroll cutoff?

Your first period's hours wait for the next payday and arrive together with the next period's. In the example, nothing comes on November 13. Then on November 27, 25 days after you start, one check pays both periods: 120 hours and $2,400.00 gross. Payroll withholds on that as if one period had paid $2,400 (IRS Pub 15), so $204.15 of federal income tax comes out. That's $77.92 more than the two separate checks would have had withheld. Withholding is a prepayment, so the extra counts toward your year's tax when you file.

### Can my employer hold back my first paycheck?

Waiting for the regular payday is normal. Skipping it isn't. Under federal law, covered non-exempt employees must get the minimum wage and any overtime "on the regularly scheduled pay day for the workweek in question" (U.S. Department of Labor, [Fact Sheet #70](https://www.dol.gov/agencies/whd/fact-sheets/70-flsa-furloughs)). How often and how soon you're paid is set by state law. California, for example, requires weekly, biweekly or semimonthly wages for periods other than the 1st–15th and 16th–end to be paid "within seven calendar days of the end of the payroll period within which the wages were earned." The Department of Labor's [state payday table](https://www.dol.gov/agencies/whd/state/payday) lists each state's required pay frequencies.

### What if I haven't turned in my W-4 yet?

Payroll still has to withhold. The IRS tells employers to treat a new employee who doesn't give them a completed Form W-4 as if they had checked "Single or Married filing separately" and left Steps 2 through 4 blank (Pub 15, 2026). That's also the calculator's default. If you're married filing jointly or head of household, a W-4 saying so lowers the withholding: in the example, the $1,600.00 check drops from $108.15 withheld to $36.15 (MFJ) or $67.12 (head of household). To check a new W-4 against your whole year's tax, use the [W-4 withholding calculator](https://clockwage44.com/tools/w4-withholding-calculator/).

### Does my first paycheck include overtime?

It does if you work more than 40 hours in a workweek before the period closes. Federal rules require overtime earned in a workweek to be paid "on the regular pay day for the period in which such workweek ends" (29 CFR 778.106). At $25 an hour and 10-hour days on a weekly schedule, starting on a Thursday, the first check has 20 hours and no overtime ($500.00). The next week's 50 hours include 10 overtime hours at $37.50, for $1,375.00 gross. The [overtime pay calculator](https://clockwage44.com/tools/overtime-calculator/) breaks down any week's overtime.

### How does a semimonthly or monthly first paycheck work?

The periods are fixed calendar dates: the 1st to the 15th and the 16th to the end of the month, or the whole month. Payday is a set number of days after the period ends. A payday that lands on a weekend moves to the Friday before or the Monday after, and you pick which in the calculator. Start Monday, November 9 on a semimonthly schedule paid 5 days after each period ends: the first check covers 5 workdays ($800.00) and lands Friday, November 20. The next covers 11 workdays ($1,760.00), and its payday falls on Saturday, December 5, so it moves to Friday, December 4.

## Related Tools

- [Back Pay Calculator](https://clockwage44.com/tools/back-pay-calculator/): Add up unpaid hours, missed overtime, and rate shortfalls across pay periods to see the gross back pay you are owed and your estimated take-home.
- [Final Paycheck Calculator](https://clockwage44.com/tools/final-paycheck-calculator/): Add up unpaid hours, overtime, and unused PTO to see the gross final pay and estimated take-home you're owed when you quit or get let go.
- [Freelance Hourly Rate Calculator](https://clockwage44.com/tools/freelance-hourly-rate-calculator/): Work backward from the take-home pay you want to the hourly rate you must bill, covering self-employment tax, income tax, expenses, and non-billable time.
- [Gig Worker Net Hourly Rate Calculator](https://clockwage44.com/tools/gig-net-hourly-rate-calculator/): Turn your gross gig earnings into your real take-home hourly rate after mileage, expenses, and self-employment tax for DoorDash, Uber, and Instacart drivers.