Published 2026-08-23

W-2 or 1099: What Changes When Nobody Withholds Your Taxes

The headline difference is 7.65%: as an employee your employer pays half your Social Security and Medicare tax, and as a contractor you pay both halves yourself. The larger difference is that nothing is withheld, and the bill arrives four times a year.

By Victor Gil Vazquez

5 min read

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Key takeaways

Self-employment tax is 15.3% — 12.4% Social Security plus 2.9% Medicare — and a contractor pays all of it.
Half of the self-employment tax is deductible in figuring adjusted gross income.
Nothing is withheld from a 1099 payment, so quarterly estimated payments become your responsibility.
Whether you are an employee is a legal test about control, not a matter of what the contract says.

The short answer

As an employee, your employer withholds income tax from every payslip and pays half of your Social Security and Medicare contributions. You see the other half come out as FICA.

As an independent contractor, you receive the gross amount and owe the whole thing yourself: income tax plus both halves of Social Security and Medicare, which together are called self-employment tax.

The rate is 15.3% — 12.4% for Social Security and 2.9% for Medicare. The Social Security portion applies up to an annual wage base, which is $184,500 for 2026; the Medicare portion has no ceiling.

Where the money actually differs

A contractor rate that matches an employee salary is a pay cut, and this table is why.

Employee and independent contractor compared
	W-2 employee	1099 contractor
Social Security and Medicare	7.65% from you, 7.65% from the employer	15.3% from you, half of it deductible
Income tax	Withheld from each payslip	Your responsibility, usually quarterly
Business expenses	Generally not deductible for federal income tax	Deductible against business income on Schedule C
Unemployment insurance	Covered by employer contributions	Generally not covered
Workers' compensation, health cover, retirement match	Often provided	Yours to arrange and to fund
Paid leave and notice	Depends on employer and state law	None, unless the contract says so

Employee and independent contractor compared

The quarterly payments nobody warns you about

The United States runs a pay-as-you-go tax system. An employee satisfies that through withholding; a contractor satisfies it through estimated tax payments, generally four times a year.

Miss them and you can owe an underpayment penalty even if you pay the full amount by the April deadline. The first year is where this bites, because the money arrived, felt like income, and was spent.

The practical fix is mechanical: open a separate savings account, move a fixed percentage of every payment into it the day it lands, and pay the estimates from there. Working out the right percentage is a job for a tax professional or for the IRS worksheet, because it depends on your bracket, your state and your deductions.

The account that keeps the tax money separateAn insured savings account earning something while it waits. The money is not yours, and keeping it visibly apart is what stops it being spent.

Which one you are is not up to the contract

Worker classification is decided by the substance of the relationship, not by what either side calls it. The IRS looks at three categories of evidence.

Behavioural control: who decides when, where and how the work is done, and whether the worker is trained and directed.
Financial control: who supplies the tools, whether the worker can incur a loss, whether they are free to seek other clients, and how payment is structured.
Type of relationship: written contracts, benefits, permanence, and whether the work is a core part of the business.
No single factor decides it, and a contract calling someone a contractor does not settle the question.

The IRS's own explanation of the three testsBehavioural control, financial control and the type of relationship, with the factors the IRS actually weighs in each.

If you think you are misclassified

Misclassification is common in some industries and it costs the worker real money: the extra 7.65%, plus the unemployment and workers' compensation cover that never existed.

You can ask the IRS to determine your status by filing Form SS-8, which requests an official ruling on the relationship. It is not fast, and it does put the question formally on the record.

State law is a separate track and is sometimes stricter than the federal test. Your state labour department is the place to ask about that half, and it is often the faster of the two routes.

Form SS-8 — determination of worker statusThe IRS form for requesting an official determination of whether you are an employee or an independent contractor.

What contracting is genuinely good for

This is not an argument that employment is better. Contracting has real advantages, and they are financial as well as practical.

Business expenses reduce taxable income in a way an employee's costs generally no longer do.
Retirement accounts available to the self-employed allow considerably higher contributions than a personal IRA.
Several clients is a more diversified income than one employer, and it can be less fragile.
Rate-setting is yours. The rule of thumb is to price meaningfully above the equivalent salary, because you are funding both halves of the payroll tax and every benefit yourself.

The retirement accounts on each side of this lineAn employee's match is free money. A contractor's higher contribution limits are the compensation for not having one.

Frequently asked questions

How much extra should a contractor charge?

Enough to cover the extra 7.65% of payroll tax, plus health cover, retirement saving, paid time off and unpaid gaps between contracts. The common rule of thumb is a substantial premium over the equivalent salary rather than a small one.

Can I be both in the same year?

Yes, and it is common. You file a W-2 from the employment and Schedule C for the contracting, and the self-employment tax applies only to the self-employed net earnings.

Is there an extra Medicare tax?

Yes. An Additional Medicare Tax of 0.9% applies to income above $200,000 for a single filer and $250,000 filing jointly. It applies to employees and to the self-employed.

Do I need an accountant?

For a first year of self-employment, almost certainly. The cost is deductible, the quarterly schedule and the deduction rules are where the expensive mistakes live, and none of this article is tax advice for your situation.

Run the numbers

This guide explains the concept. These put your own figures on it.

Free and no sign-up, on financeinyourpocket.com — our sister site.

Terms used in this guide

Contribution limit: The most the IRS lets you put into a retirement account in one tax year. It is a combined ceiling across your Traditional and Roth IRAs, not one limit each, and it changes most years.
Traditional vs Roth: Two ways of getting the tax break. A Traditional IRA may cut your taxable income the year you pay in, and you are taxed when you take it out. A Roth is paid in with money already taxed, and qualified withdrawals come out untaxed.

Sources

Internal Revenue Service — Self-employment tax — Social Security and Medicare taxes
Internal Revenue Service — Independent contractor, self-employed or employee?
Social Security Administration — Contribution and benefit base — the Social Security wage base by year

The content provided on this site is for educational and informational purposes only and does not constitute financial, legal, or tax advice.