Commission Tax Rate 2026: How Commission Is Taxed and How Much to Set Aside

There's no special tax rate for commission. The IRS treats it as supplemental wages, taxed at the same brackets as your salary, and lets employers withhold federal tax on it at a flat 22% under supplemental wage rules. For most sales reps earning over $100,000 in combined income, that 22% is below what they actually owe when April arrives, so set aside an extra 10% of every commission check on top of it.

I spent time in tech sales before becoming a financial planner and I watched this catch people every single year. A rep has a great Q2, the commissions hit, and 22% comes out at the top. By April they owe another $8,000 or $14,000 they were not expecting. The money was there in the commission check. It just got spent before the bill arrived.

How Is Commission Taxed?

Commission gets taxed in three layers, and all three come out of the same check. Federal income tax applies at your marginal bracket, from 10% to 37% depending on your total taxable income for the year. Social Security (6.2% on wages up to $184,500 in 2026) and Medicare (1.45%, plus 0.9% on wages over $200,000) add 7.65% for most reps. Then your state takes its share, anywhere from 0% in Texas and Florida to 13.3% at the top rate in California.

The only thing that's different about commission is the withholding. Your salary gets withheld based on your W-4, spread evenly across the year. Commission usually gets a flat 22% federal withholding on the day it's paid, no matter what bracket you're actually in. When you file, the IRS adds all your wages together, runs them through the brackets once, and compares the result to what was withheld.

What Is the Tax Rate on Commission Income in 2026?

Your commission tax rate is your marginal federal bracket, plus FICA and state tax. Here are the 2026 federal brackets, which apply to taxable income after the standard deduction ($16,100 single, $32,200 married filing jointly):

Commission usually lands on top of your base salary, so it gets taxed at your highest bracket. A single rep with a $100,000 base already has $83,900 of taxable income before a single commission check, which means the next $21,800 of commission sits in the 22% bracket and everything after that lands in the 24% bracket or higher. Every filing status is on the IRS tax rates page.

How Much Does a $10,000 Commission Get Taxed?

For most reps, about $2,965 gets withheld from a $10,000 commission check before state tax, and the real federal bill depends on your bracket. Here's the math for a single rep with no state income tax, under the Social Security wage base:

In the 24% bracket, the 10% reserve covers the gap five times over, and the leftover goes back into your plan after you file. In the 32% bracket, it covers the gap exactly. Add state tax on top in states that have one. For a line-by-line look at a real pay stub, including why some checks show 40% or more withheld, see why is my commission check taxed so much.

How Much Is Commission Taxed by State?

State income tax treats commission exactly like salary: it's all wages, added together and taxed at your state's rates when you file. Some states also set their own supplemental withholding rate for commission checks, the way the IRS uses 22%, so what comes out of the check can land above or below what you'll actually owe the state.

Here are the 2026 rates on wage income for 17 states, with bracket thresholds shown for single filers. The rates come from the Tax Foundation's 2026 state income tax table and each state's revenue department.

State withholding can fall short the same way federal withholding does. A single California rep with more than $72,724 of state taxable income is in the 9.3% bracket, but a commission check paid on its own gets 6.6% withheld, which leaves 2.7 points unpaid on every dollar. On a $10,000 commission that's $270 you'll owe the state in April. Stack it on the $200 federal gap in the 24% bracket and the extra 10% reserve still covers both, with $530 left over.

Is Commission Taxed Higher Than Salary?

No. Commission and salary are both wages on the same W-2, and the IRS runs every dollar through the same brackets when you file. The difference is how your employer withholds on each one.

Say your base is $120,000 and you're paid twice a month. Each $5,000 paycheck gets withheld using your W-4 and the IRS tables, which spread your standard deduction and lower brackets across the year, so federal withholding on it comes to about 15%. Then a $5,000 commission check shows up and the flat 22% comes straight off the top: $1,100, plus $382.50 for Social Security and Medicare. Put the two stubs side by side and the commission looks like it got taxed harder, even though both checks land in the same bracket on your return.

Some employers use the aggregate method instead. They add the commission to your regular paycheck and withhold on the total as if you earned that much every pay period. A $5,000 paycheck plus a $15,000 commission gets withheld like a $480,000 salary, so the commission sees over 30% federal withholding, with the top slice at 35%. If that's more than you owe, it comes back at filing. I walk through a real pay stub in why is my commission taxed so much.

How Is 1099 Commission Taxed?

If you're paid commission on a 1099 as an independent contractor, nobody withholds anything from it. You owe self-employment tax of 15.3% (12.4% for Social Security and 2.9% for Medicare) on 92.35% of your net earnings, which is your commission minus business expenses. The Social Security part stops once your combined wages and self-employment earnings hit $184,500 in 2026; the Medicare part keeps going. Income tax at your normal bracket goes on top, and you can deduct half of the self-employment tax when you figure your income.

On $10,000 of net 1099 commission, self-employment tax alone is about $1,413 ($10,000 × 92.35% × 15.3%). Since nothing gets withheld, you pay it yourself through quarterly estimated payments due in April, June, September, and January.

W-2 reps don't pay any of this. Your employer covers half of your Social Security and Medicare and withholds the other 7.65% from each check, which is how most SaaS and enterprise reps get paid.

Why Is 22% Withheld From My Commission Check?

The IRS gives employers two options for withholding taxes on supplemental wages -- which includes commissions, bonuses, and overtime. The first is the flat 22% method: apply a fixed 22% withholding rate regardless of the employee's regular salary or total income. The second is the aggregate method: add the commission to the employee's regular pay for that period and apply standard withholding tables to the combined amount.

Most companies use the flat 22% method because it is simpler to administer. The result is a predictable withholding amount that has nothing to do with your actual tax bracket. According to the IRS, the flat 22% rate applies to supplemental wages up to $1 million in a calendar year. Above $1 million, the rate increases to 37%.

That 22% is not a special commission tax rate. It is simply a withholding method -- a way of prepaying your tax obligation throughout the year. Your actual tax liability is calculated on your total income when you file, using the standard marginal brackets. The 22% is a deposit toward that bill.

Is 22% Withholding Enough for Most Sales Reps?

For a rep whose total annual income puts them in or below the 22% federal bracket, the flat withholding rate is roughly accurate. The 22% federal bracket covers single filers earning between $50,401 and $105,700 of taxable income in 2026. If that is your range, 22% withholding comes close to covering your federal obligation on those dollars.

Once your total income -- base salary plus commissions plus any other income -- pushes you into the 24% bracket ($105,701 and above of taxable income for single filers), every commission dollar in that range is being under-withheld by 2 percentage points. That sounds small, but on a $50,000 commission it is $1,000 in underpayment.

At the 32% bracket ($201,776 and above of taxable income for single filers), the gap widens to 10 percentage points. A $100,000 commission check withheld at 22% when you are in the 32% bracket leaves $10,000 in taxes unpaid.

State income taxes compound the problem. California adds up to 13.3%. New York adds up to 10.9%. Even states with moderate income taxes (Pennsylvania is 3.07%, Ohio up to 3.99%) add meaningful dollars to the underpayment.

If you're in Texas, Florida, Washington, or another state with no income tax, you skip that layer. The federal math above is your whole picture, with no state bill stacked on top of it. That does not mean you are off the hook once your income crosses into the 24% or 32% federal bracket -- it just means the gap is smaller than it is for a rep making the same money in California or New York.

A rep in the 24% federal bracket living in a 5% state: true tax rate on commission dollars is 29%. Withheld at 22%. Under-withheld by 7% on every check.

Why Does It Feel Like 40% Is Taken Out of My Commission Check?

Withholding and tax rate are two different things, and a commission check makes the gap between them obvious. Add it up: 22% federal supplemental withholding, plus 7.65% in FICA (6.2% Social Security up to the annual wage base, 1.45% Medicare), plus whatever your state takes. That is already past 30% before state tax even enters the picture. Cross $200,000 in wages for the year and an extra 0.9% Additional Medicare tax kicks in on top of it.

None of that is your income tax rate. FICA is not income tax -- it funds Social Security and Medicare, and you pay it whether you are in the 12% bracket or the 37% bracket. But it comes out of the same check, at the same time, so a rep looking at a $10,000 commission and seeing $4,000 missing understandably assumes they are being taxed at 40%. They are not. They are seeing withholding, not tax rate, and the two numbers only match up once a year: in April.

For a line-by-line breakdown of a real commission check, including why some employers withhold 40% or more, see why is my commission check taxed so much.

How Do I Calculate My Actual Tax Liability on Commission Income?

Five steps:

1. Add up all projected income for the year: base salary, commissions year-to-date plus an estimate of what is left, any bonus, investment income, spouse income if filing jointly.
2. Look up your federal marginal bracket for that total based on your filing status. The IRS publishes updated brackets annually.
3. Use the IRS tax bracket tables to calculate your estimated federal tax. Use the actual bracket-by-bracket calculation, since only your top dollars hit your marginal rate. For a single filer in 2026, the first $12,400 of taxable income is taxed at 10%, the next tranche at 12%, and so on up to your marginal rate.
4. Subtract your year-to-date federal withholding. Your W-2 and pay stubs show this number.
5. Add your estimated state income tax.

The IRS offers a free Tax Withholding Estimator tool at IRS.gov that does this calculation for you. It takes about 10 minutes and gives you a precise additional withholding amount you can enter on your W-4.

If the gap is significant, do not wait until January to adjust. Update your W-4 now.

How Should I Adjust My W-4 for Commission Income?

The W-4 has a line specifically for additional withholding: Step 4(c). You enter a dollar amount and your employer withholds that additional amount from every paycheck.

To calculate the right number:

1. Determine your total estimated tax gap for the year (what you will owe minus what is being withheld).
2. Divide by the number of remaining pay periods in the year.
3. Enter that amount in Step 4(c).

Example: You estimate you will under-withhold by $12,000 for the year and you have 20 pay periods remaining. Add $600 per pay period in additional withholding.

Alternatively: use the percentage approach. If you know your marginal rate is 32% and your employer withholds at 22%, add 10% of your base pay per period as additional withholding. Adjust when commissions land.

You can update your W-4 at any time -- there is no limit on how often you change it. The new withholding applies to the next payroll cycle after you submit it. You can find instructions and the current form at IRS.gov.

Should W-2 Sales Reps Make Quarterly Estimated Tax Payments?

Generally, W-2 employees do not need to make quarterly estimated tax payments because withholding covers them throughout the year. But there are situations where quarterly estimates become relevant for sales reps:

You have significant income outside of your W-2 withholding. Equity comp sold, rental income, freelance work, investment gains -- none of these are covered by your paycheck withholding. If these add up to meaningful dollars, quarterly estimates may be required.

You are significantly under-withheld and cannot fully close the gap through W-4 adjustments alone. Some commission structures make it difficult to cover a large year-end liability through paycheck withholding. In that case, making quarterly payments directly to the IRS is an alternative.

The safe harbor rule: you avoid underpayment penalties if your total withholding and estimated payments equal at least 90% of your current year tax liability, or 100% of last year's tax liability (110% if last year's AGI exceeded $150,000). Staying within safe harbor means no penalty even if you owe at filing.

What Are the Most Expensive Tax Mistakes Sales Reps Make?

Assuming 22% is enough and spending the rest

This is the most common one. The gap feels small per check but adds up to thousands by April.

Not accounting for state taxes

If you live in a high-tax state, federal withholding alone never covers your full bill. California, New York, and New Jersey reps especially need to factor state taxes into their set-aside percentage.

Not adjusting withholding after a comp change

You get promoted to a higher plan, switch companies, or hit a significant accelerator. Your total income changes but your W-4 stays the same. Revisit your withholding any time your comp structure changes.

Treating the tax savings account as accessible money

The 10% tax reserve is not yours. The only time it gets touched is to pay estimated taxes or the April balance. Everything else in that account is going to the IRS.

Forgetting about equity comp at sale

RSUs vest and are reported on your W-2. But if you sold shares mid-year and the gain is large, that can push you into a higher bracket than your withholding anticipated.

Chris Brindle

Financial Planner -- Valor Investments and Planning

Chris Brindle is a financial planner who works specifically with sales professionals on commission, bonus, and equity income. Before becoming a financial planner, he spent time in tech sales -- so he has dealt with variable income, big commission months, and the question of where it all went. He works with clients through Valor Investments and Planning in Easton, PA.

Book a free 30-minute call →