Every W-2 paycheck has federal income tax taken out before you see it. How much is taken out is not decided by the IRS or by your employer. It is decided by a form you filled out, probably on your first day, and probably without much thought: the W-4. If you owed money last April, or got back far more than you expected, this form is where that came from.
What the form does now
The current W-4 no longer uses allowances. Instead it walks through five steps. Step 1 is your name, address and filing status. Step 2 handles multiple jobs or a working spouse. Step 3 accounts for dependents. Step 4 lets you add other income, deductions or an extra flat amount per paycheck. Step 5 is your signature. Most people fill out steps 1 and 5 and skip the rest, and for a single person with one job and no dependents that works fine.
It stops working the moment your situation has more than one moving part.
The situations that cause a bill
- Two jobs, or a married couple where both spouses work. Each employer withholds as if that paycheck were your only income, so the combined withholding comes up short. Step 2 exists for exactly this.
- A 1099 side income with no withholding at all. Contract work in the oilfield, weekend hauling, a small business on the side: none of it has tax taken out, and it all lands on the same return as your W-2.
- A raise or a bonus late in the year that pushes you into a higher bracket than the withholding tables assumed.
- Claiming dependents in step 3 who no longer qualify, because they aged out or moved out.
- Unemployment or retirement income where you elected not to withhold.
The other side: refunds that are too big
A large refund feels like a win. It is really a year of overpaying, returned without interest. If you get several thousand dollars back every spring and your situation is stable, you can raise your take-home pay every two weeks by adjusting the W-4 instead. Some people prefer the forced savings, and that is a legitimate choice. Just make it on purpose.
How to fix it
- 01Pull your most recent pay stub and last year's return. The stub shows what has been withheld so far this year; the return shows what your tax actually was.
- 02Use the IRS Tax Withholding Estimator online, or bring both documents to us and we will run it.
- 03Fill out a new W-4 with the result. For side income, the simplest fix is usually an extra flat dollar amount in step 4(c) each paycheck.
- 04Hand it to your employer. You can submit a new W-4 at any time, as often as you need, and it takes effect on the next payroll cycle or two.
- 05Check a stub a month later to confirm the change went through.
If you run a small business with employees, the same form matters from the other side. An employee's W-4 tells your payroll how much to withhold, and you are required to use what they submit. You cannot adjust it for them.
Frequently asked questions
Can I claim exempt on my W-4?
Only if you had no tax liability last year and expect none this year. Claiming exempt when that is not true leads to a bill plus a penalty, and the exemption has to be renewed every year.
I changed my W-4 and my paycheck barely moved. Why?
The change applies only to the paychecks after your employer processes it, and it does not go back and fix withholding from earlier in the year. If you are correcting a shortfall mid-year, you may need a larger extra amount for the remaining months.
Does Texas have a state W-4?
No. Texas has no state income tax, so there is nothing to withhold at the state level. The federal W-4 is the only one.
Bring a pay stub
A withholding check takes a few minutes and it is the cheapest fix in tax. Call (432) 257-7547 or come by 700 C Andrews Hwy in Midland. English and Spanish.
Related services