Quarterly Tax Calculator

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Quarterly Tax Calculator Results

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Jan 15th

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Want to cut your bill down by $315* this quarter?

* actual average tax savings Keeper users uncover using tax deductible expenses.

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Sarah York, EA

Being self-employed comes with a number of challenges — including estimated taxes. Luckily, our quarterly tax calculator takes the guesswork out of a complicated task. 

How does this quarterly tax calculator work? 

Starting with a few simple inputs, this calculator provides a ballpark estimate for your quarterly tax bill. Let’s look over the key inputs to better understand exactly what goes into the results. 

What should you enter into the calculator?

Here are the input fields you'll fill in:

Where you live

This helps the calculator figure out which state tax rates it needs to determine your state tax bill. Be sure to use the state that you’ll be paying taxes to.

For example, if you worked in California all year, but are in the process of moving to Arizona, your state input would be “California.” 

That’s because your income up until now was sourced in California. 

Net self-employment income (annual)

“Self-employment” refers to any type of 1099 work. This could mean working as a:

  • Freelancer
  • Independent contractor
  • Gig worker
  • Small business owner

If you receive a Form 1099 instead of a W-2 — or don't get any form at all — you count as a 1099 worker.

Note that this box says “net” income. That means your income after you subtract your business write-offs.

For example, if you drive for Uber, it would be all of your earnings minus everything you spent on rideshare throughout the year. That might include part of:

Not sure what your business write-offs are? Download the Keeper app and find out!

W-2 income (optional)

This box is optional, but if you had W-2 earnings, you can put them in here.

Unlike your 1099 income, be sure to input your gross wages. Meaning, your pay before taxes and other payroll deductions are taken out.

Let’s say you have a job that pays $20 per hour, but after taxes and retirement contributions, your “take-home pay” is only $14 per hour. For this calculation to work, you need to enter the $20 per hour rate. (I’ll explain why in a minute!) 

Tax filing status

If you’ve filed taxes before, you’re probably familiar with these statuses. The options are: 

  • ‍Single
  • Married filing jointly
  • ‍Head of household

If you're married and filing separately, use "single." If you got divorced during the year you're filing for, "single" is also the most common option.

Your filing status affects your tax brackets and standard deduction amount. Choosing the right one is crucial to getting an accurate tax estimate.

What the calculator does automatically

Once you put in your info, the calculator will estimate your quarterly tax bill with a little bit of automatic tax magic. Here’s what it’s doing in the background:

✓ Calculating your standard deduction

The standard deduction shields a portion of your earnings from income tax. Pro tip: You can take this tax break and still write off your business expenses on top.

The amount of your standard deduction depends on your filing status. For your 2023 taxes, those figures are: 

  • Single: $13,850
  • Married filing jointly: $27,700
  • Heads of household: $20,800

The standard deduction is supposed to represent the amount of money it takes to maintain a basic standard of living.

✓ Accounting for your standard deduction

The qualified business income deduction gives anyone with self-employment income a bonus write-off. It lets you deduct up to 20% of your income after subtracting business write-offs.

Here’s how it works: if you have $20,000 in 1099 income and $10,000 in business expenses, your net income is $10,000. And your QBI deduction would be $2,000 ($10,000 x 0.20). 

Unlike the standard deduction, there are limitations for the QBI deduction. (Our calculator accounts for these, but it’s not able to handle all scenarios.)

Generally speaking, most 1099 workers will receive 20% if they have leftover business income after subtracting their write-offs.

✓ Estimating withholding from any W-2 income

If the calculator results show a negative number — or an amount less than you were expecting — you most likely put in W-2 income as well.

Our calculator uses the IRS standard withholding rates to estimate an employer would automatically take out of your paycheck for taxes. These rates are the default, unless you specifically tell your payroll provider to use a different amount.

The withholding rates are designed to create some margin. They take a little more than you’ve forecasted to owe and return the extra as a refund when you file. (From the IRS’s point of view, taxation is easier to enforce when you’re returning money rather than asking for it.)

To help you avoid drastically overpaying in taxes, we include your estimated withholding in the final result. That’s why it’s important to input your gross W-2 wages when using the calculator. 

What the calculator doesn’t do: Include tax credits

Most tax credits are based on your particular circumstances. For example, maybe you:

  • Had a baby
  • Went to school
  • Saved for retirement

We would have to ask a lot more questions to accurately forecast your tax credits. To make this calculator quick and easy to use, we’ve chosen not to include them in our results.

How to check which tax credits you qualify for

If you’re not sure whether these credits apply to you, you can check by looking at your tax return from last year. The second page of your will list the credits you received for the year:

Picture of page 2 of Form 1040, with lines 27-31 boxed in

To find more information about the amounts listed on line 31, look at your Schedule 3, which should be included with your tax return.

If you were eligible for a tax credit last year, you’ll often be eligible again this year (although that’s not always the case).

What happens if you’re eligible for tax credits

Being eligible for tax credits could mean that, if you make the estimated payments recommended by the calculator, you’ll end up overpaying in taxes

If that happens, you’ll get the extra money back in a refund.

Why should you make quarterly tax payments?

There are a few reasons why making quarterly tax payments is a good idea. Of course, not everyone is required to. You can skip the process altogether if you:

  • Expect to owe less than $1,000 
  • Didn’t owe any tax last year
  • Increased your W-2 withholding to cover your 1099 taxes

For everyone else, let’s look at why this process is a good idea: 

Penalty avoidance

This is the main reason to stay on top of your tax payments. If you don’t pay in throughout the year, you’ll likely get hit with an underpayment penalty. That's 0.05% of your tax due for every month it stays unpaid.

While that might not seem like much, it can add up quickly. The best way to save your hard-earned dollars is to pay your taxes once a quarter when they’re due

If you're concerned about making those payments during your slow season, you even have the option of using the annualized income installment method. This allows you to make smaller quarterly payments when you're earning less, making up for it when business is booming.

Peace of mind

While paying taxes is never fun, it comes with a greater sense of control heading into tax season. You don’t have to be concerned about a surprise bill because you’ve been managing your payments throughout the year.

For 1099 workers who already have a lot of stress on their plates, this approach can make a huge difference. 

Improved financial focus 

An important step to doing quarterly taxes is finding your “net income.” This forces you to review your business's financial health beyond just your bank balance.

To pay quarterly, you’ll have to know: 

  • How much money you’ve earned so far
  • How much money you expect to earn for the whole year
  • Your work expenses so far
  • A good forecast for what your work expenses will be for the current year

Knowing all this forces you to engage with the financial side of your business. Having a quarterly reason to study your income and expenses sharpens your financial focus and improves your managerial skills.

Pro tip: To save time sorting your expenses, consider downloading the Keeper app! We can automatically scan your bank and credit card transactions and find all your eligible write-offs for you.

When should you make quarterly tax payments?

The IRS sets deadlines for estimated tax payments on a quarterly basis. The dates don’t align with regular calendar quarters, though. The IRS keeps its calendar of tax deadlines updated.

7 ways to make your quarterly tax payments

Now that you know how much to pay and why, let’s look at how to make the rubber meet the road. There are seven ways to make estimated tax payments on your 1099 income: 

Option #1: Get a Keeper accountant's help

Best if: You want to outsource your quarterly taxes to an expert

If you want a tax professional to take this chore off your hands, try Keeper. With a premium subscription to our app, you'll get a CPA or EA to manage your quarterly tax payments for you, including:

  • Calculating how much you owe
  • Keeping track of deadlines for you
  • Paying the IRS and your state (if applicable)

This is the only payment option that bundles federal and state payments together. The others are IRS only — you'd have to pay your state separately.

To get your quarterly tax payments as low as possible, the Keeper app will also help you track your write-offs throughout the year.

Between personalized attention from a tax professional and automated expense tracking, you'll know your quarterly tax payments are accurate — and that you're saving as much money as possible.

Option #2: Direct Pay

Best if: You want to avoid making an account

If you want to make your federal payments yourself, IRS Direct Pay is a lightweight option. It doesn’t require you to set up an account or register in any way. You can simply:

  1. Input your tax details
  2. Make a payment

This is easiest to do with direct deposit, but the IRS can also work with third-party merchants to handle credit card payments. 

Screenshot of direct pay starting screen

Option #3: An EFTPS account

Best if: You might want to see your tax transcripts someday

You’ll need to set up an account to use this payment method, but I recommend all taxpayers do that at some point anyway. It’s the only way to easily view your tax records and transcripts — useful if you ever fall behind on your taxes and need to file them a few years late. It also lets you conveniently make tax payments. 

To enroll, visit the IRS’s Electronic Federal Tax Payment System (EFTPS). Once registered, you’ll be able to view all your tax return filings and can seamlessly make estimated payments

Option #4: Mobile app

Best if: You want a free app (and don't mind glitches)

Believe it or not, the IRS recently released a mobile app for taxpayers called IRS2Go, which is available for both Android and iPhone.

This is a good direction for the IRS, but be prepared for some glitching and long wait times with customer support. The app is far from a walk in the park, but hopefully the functionality will improve over time. 

Option #5: Phone payments

Best if: You don't want to deal with screens at all

You can also pay your estimated quarterly taxes by making a phone call.

If you’ve created an EFTPS account, you can call the IRS directly at:

  • 1-800-555-4477 (English)
  • 1-800-244-4829 (Español)
  • 1-800-733-4829 (Deaf or hard of hearing) 

Don't have an EFTPS? You can still pay over the phone. But instead of calling the IRS directly, you’ll actually call one of the third-party providers listed below.

They'll allow you to pay using credit, debit, or — in a few cases — an app. Again, you'll have to pay a convenience fee.

Platform Phone Number Website Credit Fee Debit Fee
Pay1040 888-PAY-1040 www.PAY1040.com 1.87% $2.50
payUSAtax 844-PAY-TAX8 www.payUSAtax.com 1.82% $2.14
ACI Payments 888-UPAY-TAX fed.acipayonline.com $2.50 $2.50

Which third-party provider is best?

Each option comes with pros and cons:

  • payUSAtax has the lowest fees
  • Pay1040 (formerly known as Link2Gov) offers the most payment methods including PayPal
  • ACI Payments is the only option to accept Venmo

Option #6: Physical check

Best if: You want to do this the old-fashioned way

Many people still prefer physical checks, and those are accepted as well. However, due to security concerns around paper mail, the IRS strongly encourages people to make electronic payments whenever possible.

If you plan to use a check, be sure to follow the steps below: 

  • Fill out your 1040-ES (pages 9-11) 
  • Make your check payable to the “United States Treasury”
  • Write your Social Security number or ITIN on the check
  • Write “2024 1040-ES” on your check (or whatever tax year the check is for) 
  • Mail both the check and the 1040-ES together without stapling them 

Pro tip: Make sure your payment amount is written correctly on the check. The IRS doesn’t want you to use dashes or lines:

  • ✓ Correct format: $1,000.00 
  • ✘ Incorrect format: $1,000– 
  • ✘ Incorrect format: $1,000 0/100 

Where you mail the check depends on your location. Refer to page 5 of the IRS instructions to find the correct address.

Option #7: Increasing your W-2 withholding

Best if: You're a side hustler who doesn't mind doing extra paperwork

Last but not least, if you work a W-2 job in addition to your freelance work, ask your employer to increase your withholding by giving them an updated Form W-4. This saves you from having to submit payments yourself.

For example, if the results from this calculator tell you to pay $1,200 quarterly, have your employer increase your withholding by $200 on your biweekly payroll. This amounts to $400 a month, or $1,200 a quarter — all without you having to do anything. 

And with that, you’re off to the races! Be sure to visit Keeper’s Free Resources page for more tips and free tools, or download our app so that we’re never further than a click away.

Sarah York, EA


Sarah is an Enrolled Agent with the IRS and a former staff writer at Keeper. In 2022, she was named one of CPA Practice Advisor’s 20 Under 40 Top Influencers in the field of accounting. Her work has been featured in Business Insider, Money Under 30, Best Life, GOBankingRates, and Shopify. Sarah has spent nearly a decade in public accounting and has extensive experience offering strategic tax planning at the state and federal level. Her clients have come from a wide range of industries, including oil and gas, manufacturing, real estate, wholesale and retail, finance, and ecommerce, and she has handled tax returns for C corps, S corps, partnerships, nonprofits, and sole proprietorships. In her spare time, she is a devoted cat mom and enjoys hiking, painting, and overwatering her houseplants.