Why the first paycheck at a new job is short

You start on a Wednesday, payday comes, and the deposit is a fraction of what the offer letter implied. Before you email payroll, check the four things below, in this order. Between them they explain nearly every short first check.

1. You were paid for part of a period

Pay periods are fixed calendar blocks. Your start date almost never lines up with the first day of one.

Take a biweekly period that runs Monday to the Friday of the following week — ten workdays. Start on the Wednesday of week two and you work three of those ten days. At $28.00 an hour and 8-hour days:

• 3 days × 8 hours = 24.00 hours
• 24.00 × $28.00 = $672.00 gross

Against a full period of $2,240.00, that looks like a mistake. It is just arithmetic. Salaried pay works the same way: most payroll systems prorate the period salary by workdays or by hours.

2. Payroll runs behind the work

Most employers pay in arrears: the check you receive on a payday covers a period that ended days earlier. The gap is the payroll lag, and it exists so time can be approved and the payroll processed.

Here is how that plays out with a one-week lag:

Date	What happens
Wed, period A day 8	You start
Fri, period A ends	24 hours worked so far
Fri, one week later	Payday for period A: the $672.00 check
Fri, period B ends	First full period worked
Fri, one week later	Payday for period B: the full check

If your start falls just after a payroll cutoff, your first hours can roll into the next payday entirely. Then the first check is not short — it's missing, and the second check carries two periods' worth. Ask HR which payday your first hours land on; the answer is a date, not a policy.

3. Benefits start, sometimes with a catch-up

Benefit premiums are usually a flat amount per paycheck, not a percentage of pay. A $96.00 health premium is 4.3% of a full $2,240.00 check and 14.3% of a $672.00 one.

Two other patterns hit the first check or two:

• Catch-up deductions. If coverage started on your hire date but enrollment was processed late, the employer may take two periods' premiums from one check.
• Retirement plan auto-enrolment. Many plans enrol new hires automatically at a default rate unless you opt out. Look for a 401(k) or 403(b) line you didn't choose.

Neither is wrong, but both should match what you elected. Check your benefit confirmation against the stub.

4. Withholding without a W-4, or with an old habit

If payroll has no Form W-4 from you, federal rules tell the employer to withhold as if you were single with no adjustments — IRS Publication 15-T describes that default. For many married people or parents that means more withholding than they need.

The fix is a new W-4, not a complaint about the check. The three boxes that matter covers what to fill in. State withholding has its own form in most states that tax wages, and it is easy to forget.

When it is an error

The four causes above have fingerprints. An actual error looks different:

1. Hours on the stub don't match hours worked. Count your days. Compare to the hours column, not the dollars.
2. The rate is wrong. Compare the rate printed on the stub to the offer letter. A rate keyed as the old job's rate, or an hourly figure rounded down, shows here.
3. The period end date is earlier than your last day in that period, and the next stub doesn't pick the days up. That's unpaid time, not lag.
4. A deduction you never elected.

If one of those is true, send payroll the stub, the dates and the hours, in writing. Federal law requires covered non-exempt employees to be paid at least the minimum wage for every hour and overtime for hours over 40 in a workweek; your state labor department handles wage claims if a correction doesn't come. Payroll errors explains how a correction shows up.

Plan for the gap

When you change jobs, the money problem is not the short check. It is the two to four weeks between your last check at the old job and your first full one at the new job. Map it before you start:

• Date of your final paycheck at the old job, and whether it includes any vacation payout.
• Date of the new job's first payday, and which days it covers.
• Date of the first full check.
• Which bills fall due between them.

Write the dates down. Most of the stress in a job change is a calendar problem, and calendars can be solved in advance.