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How An Estimated Tax Calculator Can Help Calculate Quarterly Taxes?

last updated-

March 7, 2025
You might think paying self-employment taxes is an annual occurrence, but it might actually happen more frequently than you think. If you’re new to the world of self-employment, it’s a good idea to familiarize yourself with how to calculate quarterly taxes and how to pay estimated taxes. You can estimate taxes by yourself or you can use an estimated tax calculator. You just need to enter a few details about your tax situation, and an estimated tax payments calculator can easily find your owed tax liability. 1099 employees have to calculate estimated tax every year as they may need to make this payment every quarter if they think their income will result in a tax amount over $1,000. Figuring out how much estimated tax to pay with a calculator will make tax season much easier to navigate.
Key takeaways:
  • Self-employed individuals have to pay estimated taxes every quarter if they owe more than $1,000.
  • A quarterly tax calculator is a handy tool that can find your estimated tax payments 2024.
  • Failing to pay quarterly taxes on time will result in an underpayment penalty from the IRS.
Most Asked Questions to a FlyFin CPA

Who pays estimated tax?

Self-employed individuals, freelancers, and independent contractors who expect to owe at least $1,000 in taxes for the year generally need to pay estimated tax.

How to file estimated tax?

Estimated tax is typically filed using Form 1040-ES. You can fill out the form and submit it either electronically or by mail.

What percentage should I pay estimated tax?

The percentage you should pay for estimated tax varies depending on your income, deductions, and tax bracket. Generally, the IRS recommends paying the lower of either 100% of your previous year’s taxes or 90% of your current estimated taxes.

Is there a penalty for not paying estimated tax?

If you do not pay enough in estimated tax or make late payments, you may get hit with late penalties and/or underpayment penalty fees from the IRS.

Are there any online platforms that help with estimated tax payments?

Yes, there are online platforms that help with estimated tax payments. Some popular platforms include the Electronic Federal Tax Payment System (EFTPS), IRS Direct Pay, and various tax software providers that offer payment features integrated into their platforms.

How do I amend my estimated tax payments if my income changes?

If your income changes significantly during the year, you can adjust your estimated tax payments for future quarterly payments. You can use Form 1040-ES to recalculate the estimated tax amounts or contact the IRS directly.

How to calculate estimated tax payments for 2023?

You can use an estimated taxes calculator for the self-employed to check whether you need to make estimated quarterly tax payments.

How do I know if I have to pay estimated tax for self-employed income?

If you expect to owe at least $1,000 in taxes after subtracting any withholding, tax deductions and tax credits, you are required to pay estimated tax. You can use an estimated taxes calculator for the self-employed to check this.

What is the minimum estimated tax payment?

The minimum estimated tax payment is generally either 90% of the tax liability for the current year or 100% of the tax liability from the previous year (whichever is lower).

How to track my estimated tax payments?

You can track your estimated tax payments by keeping detailed records of the receipts, bank statements and previous 1040-ES forms. Additionally, you can use certain tax software or a spreadsheet to maintain an online record of your payments.

Is there a specific IRS form to use for making estimated tax payments?

Yes, the specific IRS form used for making estimated tax payments is Form 1040-ES. It helps you calculate and report your estimated tax liability for each quarter.

Who pays estimated tax?

Self-employed individuals, freelancers, and independent contractors who expect to owe at least $1,000 in taxes for the year generally need to pay estimated tax.

How to file estimated tax?

Estimated tax is typically filed using Form 1040-ES. You can fill out the form and submit it either electronically or by mail.

What percentage should I pay estimated tax?

The percentage you should pay for estimated tax varies depending on your income, deductions, and tax bracket. Generally, the IRS recommends paying the lower of either 100% of your previous year’s taxes or 90% of your current estimated taxes.

Is there a penalty for not paying estimated tax?

If you do not pay enough in estimated tax or make late payments, you may get hit with late penalties and/or underpayment penalty fees from the IRS.

Table of contents

Who has to pay estimated taxes?...Read more

How to calculate quarterly taxes?...Read more

How to use an estimated tax calculator?...Read more

When is the deadline to pay quarterly taxes?...Read more

How to make estimated quarterly tax payments?...Read more

Who has to pay estimated taxes?

Self-employment tax (or SECA tax) needs to be paid by every 1099 employee who makes over $400 in income every year. The SECA tax is set at a rate of 15.3%, with 12.4% towards Social Security, and 2.9% for Medicare. However, SECA tax isn’t paid once a year like the federal income tax. The IRS taxes this income as it is earned, so this isn’t a problem for W-2 employees. Self-employed individuals are in charge of paying their own taxes, so they have to make these tax payments themselves. The IRS knows that self-employed income isn’t always the same every year. That’s why they allow taxpayers to make estimated payments every quarter. These payments will only have to be made if the tax owed crosses $1,000. This is also why freelancers, small business owners, gig workers and independent contractors use an estimated taxes calculator to find their earned income for the year rather than try to calculate it themselves.
Infographic entitled Why Use an Estimated Tax Payments Calculator featuring five key benefits of estimated taxes calculators.

How to calculate quarterly taxes?

So you know that estimated taxes have to be paid if the tax amount is over $1,000. But you might be wondering, “How much are estimated quarterly taxes?”, and if there’s a limit to how much tax you’ll have to pay. Unfortunately, there is not. If your income is over the threshold limit, you’ll have to pay SECA tax. And if you think you’ll make enough to owe over $1,000, you have to make the estimated tax payments. Apart from just calculating your owed tax, an estimated tax calculator can also find deductions you can claim. To calculate estimated tax, you’ll need to either enter the number of business expenses you’re writing off or choose what you are eligible to write off from a list of deductions.
A 1099 quarterly tax calculator can find deductions like health insurance premiums, advertising costs and internet expenses. To make the most of your tax savings, it's crucial to know which deductions apply to you as a 1099 employee. Explore a detailed breakdown below of deductible expenses across key categories such as Home Office Deductions, Medical Deductions, and Mortgage Deductions to ensure you're not leaving any money on the table.
Top Deductions for 1099 Employees
Infographic entitled Mortgage Deductions outlining eligible tax write-offs for mortgage expenses for 1099 employees.
Mortgage interest
Mortgage interest
Loan fees
Loan fees
Private Mortgage Insurance
Private Mortgage Insurance
Infographic entitled Home Office Deductions showcasing deductible expenses for 1099 taxpayers in the home office category.
Furniture
Furniture
Insurance
Insurance
Repair and maintenance
Repair and maintenance
Infographic entitled Medical Deductions highlighting key deductions for self-employed individuals in the medical category.
Special diets
Special diets
Medical conference
Medical conference
Rehab treatment
Rehab treatment
Infographic entitled Mortgage Deductions outlining eligible tax write-offs for mortgage expenses for 1099 employees.
Mortgage interest
Mortgage interest
Loan fees
Loan fees
Private Mortgage Insurance
Private Mortgage Insurance
Infographic entitled Home Office Deductions showcasing deductible expenses for 1099 taxpayers in the home office category.
Furniture
Furniture
Insurance
Insurance
Repair and maintenance
Repair and maintenance
For example, you’re a part-time photographer who earned $8,000 in the months of January to April 2024, and expect to earn this amount each quarter throughout the year. You also spent $2,500 on travel expenses, equipment and vehicle mileage. This means your taxable income is $5,500 for the first quarter of 2024. You decide to use an estimated taxes calculator and find that your income for the whole year is approximately $27,500. Your total owed tax for 2024 is $4,208, or so you have to make estimated tax payments of $1,052 for 2024. Using your tax deductions has saved you $778. That’s the power of a quarterly tax calculator!

Tax Tip of the Week :

If you're unsure about any aspect of your tax calculations, seeking advice from a certified tax professional can provide clarity and peace of mind.
Infographic entitled How an Estimated Quarterly Tax Calculator Identifies Nine Tax-Deductible Business Expenses to Reduce Quarterly Taxes.

How to use an estimated tax calculator?

A quarterly tax calculator only needs a few pieces of information from you to estimate your tax amount. Think tax info like the state you live in, your filing status, your job, all the business expenses you want to write off and your income for the year. Certain estimated tax calculators (like FlyFin) can even find your tax deductions for you (like retirement contributions), making that step so much easier. If you live in New Jersey all year but are moving to another state at the end of the year, you should still enter your state as New Jersey because that is where all your income comes from. If you’re a full-time 1099 employee, you’ll need to total all your income sources to get your gross income. This means any money earned from gig work, freelancing, operating as a small business or an independent contractor. So, how do you find your estimated tax payments 2024? Use a quarterly tax calculator, enter all the basic tax information required and get a tax breakdown of your total liability and quarterly payments. Then, you just fill out Form 1040-ES and make your payments. If you’re paying estimated taxes online, you don’t need to file this form.
Infographic entitled Components of a Quarterly Tax Calculator displaying six tax data points necessary to calculate estimated taxes.

When is the deadline to pay quarterly taxes?

Usually, estimated taxes are paid on a quarterly basis. The payment deadline for each quarter falls on the 15th of the month (or the next working day). If you can't pay your taxes by the deadline, you will be fined by the IRS. You can face two types of penalties: the late penalty and/or the underpayment penalty. It’s pretty easy to avoid the late penalty fees. All you need to do is just pay your taxes on time. To avoid the underpayment penalty, you can do a couple of things. The first option is to use a quarterly tax calculator to pay 100% of the tax you owed last year. This is an easy way to avoid penalty fees, especially useful if your income does not fluctuate as often. The second option is to pay at least 90% of your tax liability for this year if you think you’ll make less than you did last year. As this is an estimated payment, you can pay a little over 90% as a safety net to avoid an underpayment penalty. This is known as the “safe harbor” rule. If your AGI (adjusted gross income) was over $75,000 as a single filer, you’d need to pay 110% of last year’s tax liability to fulfill the safe harbor rule. The last option is to pay 100% of your current year’s tax liability if you think your income is going to be more than what you made last year. A tax penalty calculator is a good tool to check whether you owe the IRS any penalties. You can also use this to calculate IRS payment plans. The penalties usually get higher the longer you put off paying your tax liability, so it’s a good idea to pay them off as soon as you can.
Imagine the case of Liam, an independent consultant who failed to meet the deadline to file his returns and neglected to make the necessary quarterly payments on time. Over the subsequent months, Liam encountered escalating penalties and interest fees. Recognizing the financial impact of these delays is crucial to avoid similar situations. Below is a detailed table showcasing the penalties incurred at different intervals after failing to file and pay taxes on time.
Penalty on Unpaid Taxes of $3,000
Time Since Deadline
Failure to File Penalty
Failure to Pay Penalty
Total Penalties
Interest (~0.667% monthly)
Total Amount Due
1 Months
$135(4.5%)
$15(0.5%)
$150
$20.01
$3,170.01
3 Months
$405(13.5%)
$45(1.5%)
$450
$60.43
$3,510.43
6 Months
$750(25%max)
$90(3%)
$840
$122.08
$3,962.08
12 Months
$750(25%max)
$180(6%)
$930
$249.13
$4,179.13
Infographic entitled 2024 Schedule for Quarterly Tax Payments illustrating the deadlines for paying quarterly taxes via an estimated taxes calculator.

How to make estimated quarterly tax payments?

So you now know how to use an estimated tax calculator to make estimated tax payments 2024. Now let’s talk about how to pay estimated taxes. The easiest way to do this is to pay directly on the website. You can also use the IRS app, in both Spanish and English, IRS2Go to make your estimated tax payment. Another way to use the information you got from a quarterly tax calculator is to pay using the EFTPS. Also known as the “Electronic Federal Tax Payment System,” this method allows you to view all your previous tax payments and tax returns. You’ll need to make an account to register (don’t worry, it’s free), and you can start making your payments. If you’re looking to make these payments the old-fashioned way, you can still send the IRS checks. All you have to do is attach them to Form 1040-ES, which you’ll use to make these quarterly payments. Make sure to add your social security number or tax ID, mention the year of payment on the check and send it in without stapling it to the form. If you’re really old school, you can even call in and pay the IRS over the phone. You’ll need an EFTPS account to do this, and you’ll also have to pay them a small fee. If you don’t have an EFTPS account, you can still pay over the phone, but you’ll have to call a third-party provider. The last way to pay the IRS after calculating quarterly taxes is to increase your W-2 withholding amount. Now obviously, this will require you to already have W-2 income. So, W-2 employees have their income tax withheld from their employer. You can ask to have this amount increased to cover your quarterly tax payments with the help of Form W-4.
Infographic entitled Payment Methods for Quarterly Taxes After Estimating Tax Liability with a Tax Calculator.

Content Reviewed By

content-reviewed-by-cpa

FlyFin CPA Team

With a combined 150 years of experience, FlyFin's CPA tax team includes tax CPAs, IRS Enrolled Agents and other tax professionals, offering users the most comprehensive tax advice and preparation.

FAQs

Should I pay self-employment taxes quarterly or yearly?

Who has to pay quarterly taxes?

How much is quarterly taxes?

When are quarterly taxes due in 2024?

How to calculate quarterly taxes?

What do I need to calculate estimated tax?

What tax deductions can a self-employed tax calculator find?

How to calculate estimated tax payments 2024?

Is there an estimated tax payments calculator for 2024?

Does FlyFin’s calculator show me how much estimated taxes I have to pay?

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