W-2 vs. 1099 — which one are you?

The situation

You pick up some gig work — driving, tutoring, design, whatever — and the money hits your account in full. No taxes taken out. It feels like a raise. Then tax season arrives and so does a bill you didn’t see coming. The difference between a clean year and that surprise comes down to two little form numbers: W-2 and 1099.

The idea

The two forms describe two completely different tax relationships.

W-2 — you’re an employee. Your employer:

• withholds your income tax and FICA from every check,
• pays the matching half of your FICA (that quiet ~7.65% from the FICA lesson),
• sends you a W-2 in January summarizing it all.

1099 — you’re an independent contractor. The payer:

• withholds nothing — you get the full amount,
• pays none of your FICA,
• sends you a 1099 (no withholding info, because there wasn’t any).

That second bullet is the expensive one. As a contractor you owe both halves of FICA yourself — 12.4% Social Security + 2.9% Medicare = 15.3% self-employment tax — because there’s no employer to cover the other half. (Small mercy: you can deduct half of that self-employment tax when you file.)

The rule of thumb: if you’re 1099, a chunk of every payment isn’t really yours — it’s the IRS’s, just not collected yet. Set it aside on arrival.

By the numbers

Put the same $48,000 through both setups:

	W-2 employee	1099 contractor
Your share of FICA	$3,672 (7.65%)	~$6,800 (about 15.3%*)
Employer’s share of FICA	$3,672 (paid for you)	$0 — it’s on you
Income tax withheld for you?	Yes, each check	No — you owe it directly
Pays taxes during the year via	Withholding	Quarterly estimated payments

*Technically, the 15.3% self-employment tax applies to 92.35% of your net earnings, not the full amount — that’s why the real number lands a little under a straight 15.3% of $48,000. The 25–30% set-aside rule below already absorbs this, so you don’t have to do the math yourself.

So the headline: as a contractor on $48,000, the extra employer-share you now cover is about $3,400 — money a W-2 job would have paid invisibly. That’s not a reason to avoid 1099 work; it’s a reason to price it in. Contractors often charge more partly to offset exactly this.

Two forms, two completely different paths for the same work:

flowchart TD
  accTitle: W-2 employee versus 1099 contractor — who handles your taxes
  accDescr: A W-2 employee has income tax and FICA withheld from every check, and the employer pays the matching half of their FICA. A 1099 contractor has nothing withheld and gets paid in full, but owes both halves of FICA as self-employment tax and must set money aside and pay quarterly estimated taxes.
  A["How are you paid?"] --> B["W-2 — employee"]
  A --> C["1099 — independent contractor"]
  B --> D["Taxes withheld from every check"]
  B --> E["Employer pays the matching half of your FICA"]
  C --> F["Nothing withheld — you get the full amount"]
  C --> G["You owe both halves of FICA (self-employment tax)"]
  G --> H["Set money aside on arrival; pay quarterly estimated taxes"]

What to actually do if you’re 1099

Two habits keep contractor work from biting you:

1. Set aside roughly 25–30% of every payment the moment it lands (income tax + the 15.3% self-employment tax, minus your deductions, roughly shakes out here for many first-time contractors). A separate savings account works great.
2. Pay quarterly estimated taxes. Since nobody withholds for you, the IRS expects four payments across the year rather than one lump at filing — paying as you go avoids a giant April bill and underpayment penalties.

Not sure which you are? The payer should tell you, and the IRS page below lays out the difference. When in doubt, assume 1099 means taxes aren’t handled — handle them yourself.