Quick Answer
SIT stands for State Income Tax — the amount withheld from your paycheck for state income taxes. For example, if you live in California and earn $60,000, roughly $2,400 (4%) would be withheld annually as SIT, or about $92 per biweekly paycheck.
Best Answer
Sarah Chen, CPA
Best for anyone with a regular paycheck who sees SIT on their pay stub
What does SIT stand for?
SIT stands for State Income Tax — it's the amount your employer withholds from your paycheck to cover your state income tax liability. Just like federal income tax withholding, your employer calculates and sends this money directly to your state tax department throughout the year.
How SIT withholding works
Your employer uses your state's withholding tables (similar to federal Form W-4) to determine how much SIT to withhold. The amount depends on:
Example: SIT withholding calculation
Let's say you're single, live in Virginia, and earn $65,000 annually:
This means $144 comes out of each biweekly paycheck and goes directly to Virginia's Department of Taxation.
State-by-state SIT variations
What affects your SIT withholding
Why your SIT might be wrong
Your SIT withholding might be too high or too low if:
What you should do
1. Check your pay stub: Look for "SIT," "State Tax," or your state's abbreviation ("CA SDI," "NY SIT," etc.)
2. Verify the amount: Use your state's withholding calculator to see if you're on track
3. Adjust if needed: Submit a new state withholding form to HR if your withholding seems off
4. Track for tax time: Keep pay stubs to verify your state tax withholding at year-end
Key takeaway: SIT is State Income Tax withholding — typically 3-8% of your gross pay depending on your state. Check your pay stub to ensure the right amount is being withheld to avoid owing taxes or getting a huge refund.
Key Takeaway: SIT is State Income Tax withholding — typically 3-8% of your gross pay depending on your state and income level.
SIT rates by state type to help estimate your withholding
| State Type | Tax Rate Range | SIT per $3,000 Paycheck | Annual SIT on $65k |
|---|---|---|---|
| No income tax states | 0% | $0 | $0 |
| Low tax states | 3-5% | $90-150 | $1,950-3,250 |
| Moderate tax states | 4-7% | $120-210 | $2,600-4,550 |
| High tax states | 6-13% | $180-390 | $3,900-8,450 |
More Perspectives
Sarah Chen, CPA
Best for new employees who are seeing pay stub abbreviations for the first time
Welcome to your first pay stub!
If this is your first job, seeing "SIT" on your pay stub can be confusing. Don't worry — it's just State Income Tax, and it's completely normal.
The basics for new employees
When you started your job, you filled out tax forms. One was probably a federal Form W-4, and another was likely a state withholding form. These forms told your employer how much to withhold from each paycheck for taxes.
SIT is the state portion of that withholding. Think of it as a forced savings account for your state taxes — instead of owing one big payment next April, your employer spreads it out across all your paychecks.
What to expect as a new worker
For most entry-level positions ($30,000-$45,000), your SIT withholding will probably be:
Don't panic if it seems like a lot
Remember: this money isn't disappearing. It's going toward your state tax bill. If too much is withheld, you'll get a refund when you file your tax return. If too little is withheld, you might owe some money — but that's manageable.
Other abbreviations you might see
While we're here, other common pay stub abbreviations include:
Key takeaway: As a new employee, SIT withholding is normal and expected — it's just your state income tax being collected gradually instead of all at once.
Key Takeaway: As a new employee, SIT withholding is normal and expected — it's just your state income tax being collected gradually instead of all at once.
Marcus Rivera, CFP
Best for parents who want to understand how dependents affect SIT withholding
How children affect your SIT withholding
As a parent, your SIT withholding should be lower than someone with the same income but no kids. Most states offer dependent exemptions or credits that reduce your state income tax liability.
State-specific family benefits
Many states provide tax relief for families:
Example: Family of four in North Carolina
Let's say you're married filing jointly with two kids, earning $80,000:
Making sure your withholding is right
After having a baby or adopting, you should:
1. Update your state withholding form with HR to claim the new dependent
2. Adjust your federal W-4 as well
3. Use your state's withholding calculator to verify the changes
4. Consider the timing — if you had a baby in December, you get the full year's credit
Multi-state families
If you live in one state but work in another, or if you and your spouse work in different states, SIT withholding gets more complex. Some states have reciprocity agreements, others don't. You might need to file returns in multiple states.
Key takeaway: Parents typically have lower SIT withholding due to dependent exemptions and credits — make sure to update your withholding forms after major family changes.
Key Takeaway: Parents typically have lower SIT withholding due to dependent exemptions and credits — make sure to update your withholding forms after major family changes.
Sources
- IRS Publication 15-T — Federal Income Tax Withholding Methods (includes state withholding principles)
Related Questions
Reviewed by Sarah Chen, CPA on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.