Key facts at a glance
Self-employment tax rate
15.3%
12.4% Social Security + 2.9% Medicare
$150,000, W-2 net
$113,791/yr
Federal tax + standard FICA
$150,000, 1099 net
$106,615/yr
Same income, self-employment tax
Here's the number before the mechanics: on $150,000 of income, a W-2 employee nets $113,791 after federal tax and standard FICA. A 1099 contractor with the same $150,000 in net profit and no business deductions nets only about $106,615, a gap of roughly $7,176. That gap isn't a fee or a penalty, it's the direct, structural result of self-employment tax charging you both the employee and the employer halves of Social Security and Medicare.
This matters for anyone weighing a W-2 offer against a 1099 contract at what looks like the same headline number, or trying to figure out what to actually charge as a new contractor. The gap is real, but it's also smaller than a naive "just double FICA" calculation would suggest, because half of self-employment tax is deductible from your federal taxable income.
See your W-2 take-home baseline first, then compare against a 1099 offer.
Open the US calculatorWhy 1099 income is taxed differently, step by step
As a W-2 employee, FICA is split 50/50: you pay 6.2% Social Security + 1.45% Medicare (7.65% total) out of your paycheck, and your employer pays a matching 7.65% on top, invisibly, from their own budget. As a 1099 contractor, there's no employer to fund that other half, so self-employment tax charges you the full 15.3% (12.4% Social Security + 2.9% Medicare) directly, calculated on 92.35% of your net business profit (a small built-in adjustment that mirrors the employer-half exclusion W-2 wages get automatically).
The Social Security portion still caps out at the same $184,500 wage base used for W-2 employees, just measured against your 92.35%-adjusted net earnings instead of gross wages. Medicare's 2.9% has no cap, exactly like the W-2 case, and once your adjusted earnings pass $200,000, the same 0.9% Additional Medicare Tax applies on top, with no employer-equivalent half to offset it.
Here's the part that softens the blow: half of what you pay in self-employment tax is deductible from your income before federal income tax is calculated. That deduction exists because a W-2 employer's FICA contribution is never counted as the employee's taxable income in the first place, this deduction puts the 1099 contractor on more equal footing for federal income tax purposes, even though the self-employment tax itself is still higher.
W-2 vs 1099, identical income, three levels
Assumes 1099 net profit equals gross income (no business expense deductions modeled, see disclaimer). Both columns use 2026 federal brackets, single filer.
| Income | W-2 total tax | W-2 net | 1099 total tax | 1099 net | Gap |
|---|---|---|---|---|---|
| $120,000 | $26,750 | $93,250 | $32,660 | $87,340 | −$5,910 |
| $150,000 | $36,209 | $113,791 | $43,385 | $106,615 | −$7,176 |
| $200,000 | $51,073 | $148,927 | $61,580 | $138,420 | −$10,507 |
W-2 figures from the US Salary Calculator (2026 federal + FICA rates). 1099 figures apply 2026 self-employment tax rules to the identical net-profit amount, before any business expense deductions.
This is the gap before business deductions and benefits
The table above deliberately assumes net profit equals gross revenue, no home office deduction, no equipment or software expenses, no solo 401(k) or SEP IRA contribution, specifically to isolate the self-employment-tax structural gap on its own. A real contractor with legitimate business expenses and retirement contributions can shrink this gap meaningfully, sometimes closing most of it, since those deductions reduce net profit (and therefore both income tax and self-employment tax) before any of this math applies.
What this comparison also doesn't include, on the other side of the ledger, is everything a W-2 employee typically gets that a 1099 contractor has to buy separately: employer-subsidized health insurance, paid time off, an employer 401(k) match, and unemployment insurance eligibility. A fair like-for-like comparison has to weigh the tax gap against these missing benefits, not treat the tax number alone as the full story.
What to actually charge as a 1099 contractor
A common rule of thumb in tech contracting is to target 1.25x to 1.5x an equivalent W-2 annual salary as your 1099 rate. That multiplier isn't just covering the self-employment tax gap, it's also meant to cover self-funded health insurance, no PTO, no employer 401(k) match, and the income volatility of contract work versus a stable salary.
Treat that multiplier as a starting point for negotiation, not a formula. Your actual number should reflect your real business expenses, how much you're setting aside for retirement, and how much income stability you're giving up, all of which vary enough between contractors that no single multiplier fits everyone.
Start from your W-2 baseline
Run a target salary through the calculator to see your W-2 take-home, then use this article's gap figures to estimate an equivalent 1099 rate.
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Frequently asked questions
Why does a 1099 contractor pay more tax than a W-2 employee at the same income?
Because self-employment tax charges you both halves of Social Security and Medicare, the employee half and the half your employer would otherwise pay silently on your behalf. As a W-2 employee, you only see 7.65% of your wages go to FICA (6.2% Social Security + 1.45% Medicare); your employer pays a matching 7.65% that never shows up on your pay stub. As a 1099 contractor, there's no employer to pay that other half, so self-employment tax charges you the full 15.3% (12.4% + 2.9%) instead. On $150,000 of income, that structural difference is most of the roughly $7,176 gap between W-2 and 1099 net take-home shown in this article.
Is self-employment tax calculated on my full 1099 income?
Almost, but not quite: it's calculated on 92.35% of your net profit, not the full amount. This 92.35% adjustment exists because it approximates what your net profit would be if you (as the 'employer' side) had already deducted your own 7.65% share, mirroring how a W-2 employer's FICA contribution isn't itself taxed as employee income. It's a small adjustment, roughly 7.65% off the top, but it's a real and often-missed detail in back-of-envelope 1099 tax math.
What is the 'half of self-employment tax' deduction?
It's a genuine, meaningful offset: half of what you pay in self-employment tax is deductible from your income before federal income tax is calculated, mirroring the fact that a W-2 employer's FICA contribution is never taxed as the employee's income in the first place. On $150,000 of 1099 net profit, this deduction is worth over $10,000 off your taxable income, which is why the 1099 vs W-2 gap, while real, isn't as large as simply doubling FICA would suggest.
Does the Social Security wage base cap still apply to 1099 contractors?
Yes, in the same way it applies to W-2 employees, just calculated on your 92.35%-adjusted net self-employment earnings rather than gross wages. Once those adjusted earnings cross the $184,500 wage base for 2026, the 12.4% Social Security portion of self-employment tax stops; only the 2.9% Medicare portion (and, above $200,000, the 0.9% Additional Medicare Tax) continues on income above that line.
Do 1099 contractors have any tax advantages that offset the higher SE tax?
Often, yes, and this article deliberately doesn't model them because they vary enormously by individual situation. A 1099 contractor operating as a genuine business can typically deduct legitimate business expenses (home office, equipment, software, a portion of health insurance premiums, retirement plan contributions through a solo 401(k) or SEP IRA with much higher limits than a W-2 employee's 401(k)) directly against gross revenue before any tax is calculated. A contractor with real, substantial business expenses can end up with a smaller tax gap, or even a smaller total tax bill, than the identical-net-profit comparison in this article suggests. This article assumes net profit equals gross revenue (no deductions) specifically to isolate the SE-tax-versus-FICA structural difference, not to represent every contractor's real numbers.
Should a contractor charge more per hour than an equivalent W-2 salary implies?
Generally, yes, and the self-employment tax gap is one of several reasons why (alongside no employer-paid health insurance, no PTO, no 401(k) match, and inconsistent income). A common rule of thumb in tech contracting is to target somewhere between 1.25x and 1.5x an equivalent W-2 annual salary as your 1099 rate, specifically to cover the extra SE tax, benefits you're now buying yourself, and the income volatility that comes with contract work. That multiplier is a general guideline, not a precise formula, since real business expenses and benefit costs vary by person.
Is this comparison different for a single-member LLC taxed as an S-corp?
Yes, meaningfully, and it's outside the scope of this article. Electing S-corp tax treatment lets an owner split income between a 'reasonable salary' (subject to FICA/payroll tax, similar to W-2) and distributions (not subject to self-employment tax at all), which can reduce the SE-tax gap shown here for contractors with sufficiently high, stable income. That election carries its own compliance costs (payroll administration, reasonable-salary requirements, additional filings) that only make sense above a certain income threshold, and is worth discussing with a tax professional rather than assuming it applies to your situation by default.