Freelance Quarterly Tax Calculator

How quarterly taxes work for freelancers

The U.S. tax system is pay-as-you-go. W-2 employees have taxes withheld from every paycheck, but as a freelancer or 1099 contractor, no one withholds for you — so the IRS asks you to pay in four installments across the year.

You generally need to make quarterly estimated payments if you expect to owe at least $1,000 in tax for the year after subtracting any withholding and refundable credits. Most full-time freelancers cross that threshold quickly, because self-employment tax alone runs 15.3% before income tax even enters the picture.

Each payment covers both your income tax and your self-employment tax (Social Security and Medicare). The safest approach is to set aside a percentage of every invoice — this calculator shows you roughly what that percentage should be via your effective rate.

2026 quarterly tax due dates

For the 2026 tax year, your estimated payments are due on these dates:

If a due date falls on a weekend or federal holiday, it shifts to the next business day. Miss a payment and the IRS charges an underpayment penalty plus interest, calculated for each day the payment is late — even if you get a refund at year-end. Paying on time, or at least paying the IRS "safe harbor" amount, avoids these charges.

No Tax on Tips: what freelancers need to know

The No Tax on Tips provision became law on July 4, 2025 as part of the One Big Beautiful Bill Act. For tax years 2025 through 2028, you can deduct up to $25,000 of qualified tip income from your federal income tax.

There's an income phase-out: the deduction begins shrinking once your modified adjusted gross income exceeds $150,000 ($300,000 for married filing jointly), reduced by $100 for every $1,000 above the threshold.

The most important catch — and the one most calculators miss — is that this is a deduction against income tax only. Your tips are still fully subject to self-employment tax (the 12.4% Social Security and 2.9% Medicare portions). On top of that, most states have not adopted the federal tip deduction, so your tips usually remain taxable at the state level. For 2026 and later, tips must be reported on a W-2, 1099-NEC, 1099-MISC, or 1099-K to qualify. This calculator applies the deduction correctly: it removes qualifying tips from your federal taxable income while keeping them in your self-employment tax base.

Have a W-2 job too? How it changes your freelance taxes

Plenty of freelancers also have a regular salaried job — a full-time role with a side hustle, or part of a year on payroll before going independent. If that's you, check "I also have a W-2 job" and enter your gross salary. It matters more than most people expect.

Your freelance income is taxed "on top" of your salary

The U.S. uses progressive tax brackets applied to your total income. Your freelance dollars don't get their own fresh set of low brackets — they stack on top of your wages. So if your salary already fills the 10%, 12%, and part of the 22% brackets, your first freelance dollar is taxed at 22% or higher, not 10%. Enter the W-2 salary and the calculator taxes your freelance income at those correct, higher marginal rates. Leave it out and the estimate will be too low — sometimes dramatically so.

What the quarterly number means with a W-2

We assume your employer already withholds federal and state tax on your salary, so we don't tax your W-2 wages again. The quarterly amounts shown are the additional tax you owe on your freelance income — the part no one is withholding for you. Your salary also uses up your standard deduction, which is why your freelance income is taxed from the first dollar.

Two ways to actually pay it

You can send these amounts to the IRS (and your state) as quarterly estimated payments. Alternatively, many people with a W-2 job simply increase the withholding on their paycheck via a new Form W-4 to cover the freelance tax — that avoids quarterly filing entirely. Either way, this estimate tells you how much extra to set aside. One note: we assume your existing paycheck withholding is roughly correct for your salary; if it's significantly off, your actual balance due will differ.

How this calculator works

We follow standard IRS methodology, step by step:

1. Net self-employment income = gross 1099 income − business expenses.
2. SE tax base = net income × 92.35% (the IRS adjustment for the employer-equivalent portion).
3. Social Security tax = 12.4% of the base, capped at the wage base ($176,100 for 2025, $184,500 for 2026).
4. Medicare tax = 2.9% of the base, with an extra 0.9% on earnings above $200,000 ($250,000 MFJ).
5. Half your SE tax is deducted before figuring income tax.
6. Income tax applies progressive federal brackets and your state's rates to taxable income, after the standard deduction and any tip deduction.
7. Credits like the Child Tax Credit ($2,200 per qualifying child under 17, phased out above $200k / $400k MFJ) reduce your federal income tax directly.
8. Total tax ÷ 4 gives your quarterly payment.

Results are estimates for planning purposes and don't constitute tax advice. State tax uses filing-status-specific brackets for all 50 states and DC plus each state's standard deduction and personal & dependent exemptions (data from the Tax Foundation, 2025 & 2026). Local (city/county) income tax is now included for the states that levy it — NYC & Yonkers, all Maryland and Indiana counties, Philadelphia, major Ohio/Michigan cities, Louisville/Lexington, Kansas City/St. Louis, and the Portland metro — via the locality picker that appears when you select one of those states. Local figures use current-year rates and approximate the local taxable base; small municipalities not listed should use the "Other …" option. For the three states that allow it — Alabama, Missouri, and Oregon — your federal income tax is deducted from state taxable income. Head-of-Household and Married-Filing-Separately use single-filer brackets as an approximation, and the Child Tax Credit is treated as nonrefundable. For filing, consult a qualified tax professional or the IRS.

Common freelancer tax deductions

Every legitimate business expense you deduct lowers both your income tax and your self-employment tax. The interactive section above lets you test the impact of the most common ones:

Home office

The simplified method gives $5 per square foot of dedicated office space, up to 300 sq ft ($1,500 maximum). The space must be used regularly and exclusively for business.

Health insurance premiums

Self-employed individuals can generally deduct premiums paid for medical, dental, and qualifying long-term care coverage for themselves and their families.

Retirement contributions

A SEP IRA or Solo 401(k) lets you shelter a significant share of net earnings from income tax while building retirement savings.

Internet, phone & software

Deduct the business-use portion of your internet and phone, and the full cost of software and subscriptions you use for work.

Vehicle & mileage

The standard mileage rate covers business driving — 70¢ per mile for 2025 and 72.5¢ per mile for 2026.