Quarterly Tax Calculator

Skip the guesswork and avoid costly penalties – calculate your estimated quarterly payment in under 60 seconds

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Student tuition payments are amounts paid for education expenses, such as tuition and required fees, to attend an eligible educational institution. These payments can qualify you for education-related tax credits or deductions, like the American Opportunity Credit or Lifetime Learning Credit, which can reduce your overall tax liability.

Mortgage interest is the interest you pay on a loan secured by your home, which can include a mortgage on your primary residence or a second home. This interest is often deductible on your federal income tax return, potentially lowering your taxable income if you itemize deductions.

Traditional IRA contributions are amounts you can contribute to a retirement account, which may be tax-deductible depending on your income and whether you have a retirement plan at work. The contributions grow tax-deferred, meaning you won't pay taxes on the earnings until you withdraw the money during retirement.

Keeper assumes a standard withholding by your employer's payroll provider. If you know the exact withholding, you can enter it here for an even more accurate tax refund estimate!

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Federal Payments
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State Payments
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Full tax breakdown

Total Income

This is your total gross income for the year including W2 and 1099 wages.

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Business deductions

Itemized business deductions are specific expenses that you can deduct from your 1099 / business income to reduce your taxable income. These can include costs like office supplies, travel expenses, advertising, and professional services, as long as they are ordinary and necessary for your business.

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Self Employment Tax Deduction

You can deduct the employer half of your self employment taxes.

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Adjusted gross income

This is your total income for the year minus certain adjustments, such as contributions to retirement accounts, student loan interest, and self-employment taxes.

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Standard deduction

The standard deduction is a fixed dollar amount that reduces the income you're taxed on, simplifying the tax filing process. It varies based on your filing status (e.g., single, married filing jointly) and is adjusted annually for inflation.

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Other deductions

Common deductions include state and local taxes, mortgage interest, charitable contributions, student loan interest, retirement contributions, and educational expenses. This line also includes the Qualified Business Income (QBI) deduction, which allows a 20% deduction on qualified 1099 / business income.

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Taxable income

Taxable income is the portion of your income that is subject to federal income tax after accounting for deductions and exemptions. It includes wages, salaries, bonuses, and other forms of income, minus any allowable deductions like the standard deduction or itemized deductions.

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Self Employment Tax Liability

Your self-employment tax liability is the total Social Security and Medicare taxes (currently 15.3%) you are responsible for paying on 92.35% of your net business earnings if they exceed $400 in a year. This covers both the employer and employee portions of FICA taxes.

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Federal Taxes Liability

The estimated federal income tax you owe before credits, withholdings, or payments are applied.

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State Tax Liability

The estimated state income tax you owe before credits, withholdings, or payments, based on your state’s tax rules.

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Credits

The most common tax credits people can claim include the Earned Income Tax Credit (EITC), Child Tax Credit, American Opportunity Credit, Lifetime Learning Credit, and the Premium Tax Credit. These credits can reduce the amount of tax you owe or increase your refund.

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Federal taxes withheld

This refers to the amount of federal and state taxes that are taken out of your paycheck by your employer throughout the year. Keeper assumes a standard withholding by default. If you know your employer's exact withholding, you can input it under "Add advanced info".

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State taxes withheld

This refers to the amount of state taxes that are taken out of your paycheck by your employer throughout the year. Keeper estimates this for you!

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Estimated annual federal tax bill
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Estimated annual CA tax bill
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Manage your quarterlies with Keeper

Estimate your bill
Work 1 on 1 with a tax pro to come up with a comprehensive and accurate quarterly estimate based on your unique situation.
Set up automatic payments
We’ll walk you through step by step how to make quarterly payments so you don’t have to worry about making them every 3 months.
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Explore Keeper’s other tools for lowering your tax bill - patented deduction tracking, quarterly strategy calls, and easy tax-filing.
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Over 20,000 reviews

4.8+ average

The app is very helpful with easy to follow instructions on the tax filing process
Louie
2026-06-03
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I am a freelancer and literally ALWAYS owe in taxes until THIS YEAR. Thank you Kepper <3
Lauren
2026-05-15
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This was so easy! Also, scheduled a tax call with Sabrina, and she was very informative! I think this will be the best way to file from now on
India
2026-04-25
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This is my thrid year filing with Taxkeeper and this year I considered filing for free (because they made it seem so easy and other FREE tax software was offered to me which fit my filing discription) I didnt get very far along in my comparsion between Taxkeeper and the Free filing program before deciding to return to Taxkeeper. Worth every penny of the $49year fee. I mostly appricate the balance of simple design for me as a user/filer, and the answers in their drop down question bubbles. I feel informed every step of the way and recieve prompt and professional responses whenever I reach out.
Brianna Gilge
2026-04-19
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Keeper has made the entire process of filing taxes less stressful and much more streamlined. It's incredible to know that all year Keeper is tracking all your accounts building your year portfolio & has a team of professionals there to review, assist and guide when needed. Highly recommend the service.
Krystal
2026-04-18
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This is the best tax expert I have ever used. It helps me organize my expenses so much. I don't know how i did it without keeper.
Georgia VanNewkirk
2026-04-18
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the best in the game, keeps all my transactions in one place and lets me add stuff easily as well, helpful chat bot, and great experience
Zachariah Rippey
2026-04-16
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Amazinggggg
Jayme Negron
2026-04-16
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Waited till the last minute. Got a little nervous, then I remembered keeper tax. easy peasy donw with a refund! Dont be skeptical. These guys are legit and fantastic
Mark Bonacic
2026-04-16
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As a college student doing contract work on the side, the high amount of taxes being owed was crazy to me considering how I make next to nothing a year (less than 10k). Keeper is able to help me save hundreds of dollars, and as a broke college student, every dollar matters. Last year when I made more money, Keeper brought my federal tax down from $1,200 to $400. This year it got me from $400 to $0. Even though Keeper costs $200 a year, I'm still saving about half of the money owed in the end and that's what matters to me.
Nikki
2026-04-16
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Efficient, Effective, and Intuitive
Ivan
2026-04-16
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It is so simple to use!
Ellen K
2026-04-15
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Easy and Simple The app is the First thing I purchased when I opened my business account 100!
Sedale Jones
2026-04-15
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Keeper always gets me the right deductions and its program is dummy proof so no mistakes or accidents. I've used them for the last 3 years and I dont have one complaint!
Nicole Lohmann
2026-04-15
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fairly easy and quick to file my taxes with keeper.
Proshanjit Das
2026-04-15
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It was the most simple and easy way to file taxes for a W2 and 1099 side hustle musician and it automatically took into account the expenses it usually takes so long to find in bank records.
Gary Tackett
2026-04-14
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Easy process start to finish. I was skeptical because most Instagram ads I see don't have the product to back up the ad spend. Highly recommend for any small business owners.
Alexander Dickerson
2026-04-14
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Keeper tax is THE best! As a contractor it helps me so much on a daily basis with tracking deductions, paying taxes, and staying on top of my finances. It's easy to use, highly intuitive, insightful and efficient! Highly recommend!
Julie Bush
2026-04-14
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This was so much easier than trying to find all the deductions myself and sorting through a bunch of faded receipts.
Sophia Berhane
2026-04-14
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A lot easier then I thought. Keeper really took care of all the work.
Danilo Hernandez
2026-04-13
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Frequently asked questions

When are estimated quarterly taxes due?
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Estimated quarterly taxes are due 4 times per year. For the tax year 2025, estimated payments are due April 15th, June 16th, September 15th, and January 15th. The January payment will occur in 2026.

Who has to pay estimated taxes?
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Self-employed individuals will need to make quarterly estimated tax payments if they expect to owe at least $1,000 in taxes.

Not all freelancers and independent contractors actually have to pay quarterly. If you freelance part-time or as a side hustle, you could be in the clear.

Not sure if that applies to you? Find out if you should even be worrying about estimated payments using our free estimated tax calculator.

What happens if you don’t pay estimated quarterly taxes?
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The IRS expects you to pay by the deadline. If you miss one, make the quarterly tax payment as soon as you can.

Once a due date has passed, the IRS will typically dock 0.5% of the entire amount you owe. For each partial or full month you don’t pay the tax in full, the penalty increases. It's capped at 25%.

Read more here

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