Tax Strategies for W-2 and 1099 Workers
Standard deduction, retirement accounts and quarterly estimates. What changes when part of your income comes on a 1099 instead of a W-2.
Tax Strategies for W-2 and 1099 Workers
Two people earn $65,000. One has taxes withheld from every paycheck, the other invoices clients and files a Schedule C. Under 2025 rules, the employee's total federal bill comes to about $10,887. The contractor's comes to about $13,305. Same income, $2,418 more tax — and the contractor gets deductions the employee cannot touch.
That gap is the whole article. It is not a punishment for self-employment, and it is not something to shrug at either. It is a set of rules that reward whoever reads them first.
Two workers, same income
Start with where the money actually goes on each side. Both are single filers, both take the standard deduction, neither contributes to a retirement account.
| Line | W-2 employee | 1099 contractor |
|---|---|---|
| Gross income | $65,000 | $65,000 |
| Social Security and Medicare | $4,973 | $9,184 |
| Deduction for half of that tax | — | $4,592 |
| Standard deduction (2025) | $15,000 | $15,000 |
| QBI deduction | — | $9,082 |
| Taxable income | $50,000 | $36,326 |
| Federal income tax | $5,914 | $4,121 |
| Total federal tax | $10,887 | $13,305 |
The contractor pays $4,211 more in payroll tax and $1,793 less in income tax. Net difference: $2,418.
The two halves of the same income. Self-employment costs more in payroll tax and less in income tax, and the net bill is higher.
Illustrative. 2025 single-filer brackets and standard deduction, no retirement contributions and no other income or deductions.
The self-employment tax is the number to understand, because it is the one people misquote. It is 15.3%, and you pay both halves. But it is charged on 92.35% of net profit, not on all of it, so on $65,000 the bill is $9,184 rather than the $9,945 that a straight 15.3% would give you. Then half of it, $4,592, comes back as an above-the-line deduction whether or not you itemize.
The W-2 playbook
For 2025 the standard deduction is $15,000 for a single filer and $30,000 for a married couple filing jointly. Above that line sit the deductions that matter most, and their value depends entirely on your marginal rate.
| Deduction | 2025 limit | Worth at a 12% marginal rate |
|---|---|---|
| 401(k) elective deferral | $23,500 | $2,820 |
| Traditional IRA | $7,000 | $840 |
| HSA, self-only coverage | $4,300 | $516 |
| Student loan interest | up to $2,500 | $300 |
Two honest caveats about that table. The 401(k) is a deferral, not a discount: you skip the tax now and pay it when you withdraw, which is a good trade only if your rate in retirement is lower than it is today. And the traditional IRA deduction shrinks to nothing once you have a workplace plan and earn above a phase-out range. The HSA is the one line with no catch — it goes in untaxed, grows untaxed and comes out untaxed for medical costs.
Then a move most employees never make. If your itemized deductions come to $13,000 and the standard deduction is $15,000, the first $13,000 of giving and mortgage interest buys you nothing. Bunch two years of charitable donations into one calendar year, through a donor-advised fund if the timing is awkward, and you clear the standard deduction in the first year and take it in the second. It is worth a few hundred dollars and one afternoon.
Check your withholding once, in the fall, with the IRS estimator. A $4,000 refund is not a windfall; it is an interest-free loan you made to the government, and the fix is one line on a new W-4.
The rest of this guide is for members
Navigator members read all 82 guides, including this one, for €9.99/month. The calculators stay free either way.