Self-Employment Tax Explained: What You Owe and Why
From Tax Guide.
Tax Guide · Arab, Alabama
Estimated Quarterly Taxes: Who Pays and How It Works
Estimated quarterly taxes are installment payments to the IRS for income with no withholding. See who must pay, how Form 1040-ES works and penalty basics.
The short answer
What are estimated quarterly taxes?
Estimated quarterly taxes are installment payments you send the IRS during the year on income that has no tax withheld from it.
Our tax system is pay-as-you-go. Employees have tax taken out of every paycheck. If you earn money that nobody withholds tax from, you are expected to make the payments yourself instead of waiting until you file.
The name is a little misleading. The payments are due in four installments, but the dates are not spaced in even three-month blocks, and the IRS sets the deadlines. We confirm the current schedule with clients.
Who pays
Who has to pay quarterly taxes?
Generally, you need to make estimated payments if you expect to owe a meaningful amount of tax after subtracting withholding and credits.
The IRS sets a threshold for how much you can owe before payments are expected, and it can change. What matters is the pattern. People who commonly need estimated payments include:
- Self-employed people, freelancers and independent contractors (see independent contractor taxes and 1099-NEC)
- Gig and side-hustle earners, covered in gig work and side hustle taxes
- Landlords and investors with rental income, interest, dividends or large capital gains
- Retirees whose pension, IRA withdrawals or other income has too little withholding
- Anyone with a job whose withholding falls short because of side income
What to pay
How do I figure my estimated tax payments?
You estimate your income, deductions and credits for the year, work out the total tax, then divide it into installments using Form 1040-ES.
Form 1040-ES includes a worksheet for this. Self-employed people include both income tax and self-employment tax in the estimate, since the second is on top of the first. Our guide on self-employment tax explains that piece.
The IRS also offers safe harbor rules, which are general benchmarks that can protect you from an underpayment penalty if you pay at least a certain share of the current year's tax or a share of last year's tax. The exact percentages change with income and law, so we confirm them rather than guess.
Income that is uneven, such as seasonal work or a farm with a big harvest check, can call for a different method. The IRS allows adjusting payments to when income actually arrives, and that is worth reviewing with someone.
How to pay
How and when do I make estimated payments?
You can pay the IRS online, by mail with a payment voucher from Form 1040-ES, or by other methods the IRS lists on its payment page.
Keep a record of every payment, including the date and amount, because you will report them on your return. If you and your spouse pay separately and later file a joint return, the payments can generally be combined, but the records must be clear.
Alabama has its own estimated tax rules for state income tax, and the state has its own forms and deadlines. We check how they apply to you. Our My Alabama tools page points you to the state and IRS online services.
| Payment method | Good to know |
|---|---|
| IRS online account or Direct Pay | Immediate confirmation, no voucher needed |
| Mail with 1040-ES voucher | Needs to arrive on time, so plan for mail |
| Electronic payment options | Available through the IRS payment page |
Only use IRS.gov to pay. The IRS first contacts people by mail, and anyone demanding gift cards or immediate payment by phone is a scam.
Missing payments
What happens if I skip or underpay quarterly taxes?
You may owe an underpayment penalty, which is an interest-style charge figured for the period each payment was short.
The penalty is not a fixed fee. It depends on how much was short, for how long, and on rates the IRS sets. Paying the balance when you file stops the penalty from growing but does not remove what already built up, unless an exception applies.
If you already missed a payment, the fix is usually to catch up as soon as you can and to plan the rest of the year more carefully. If you cannot pay, do not ignore the balance. Read our guide on what to do if you owe and cannot pay.
Planning
How can I make quarterly taxes easier to manage?
A steady routine of setting money aside and reviewing your numbers makes the payments predictable.
If you have a job as well, you can sometimes raise your withholding instead of making separate payments. See adjust your withholding with a new W-4. Withholding is treated as paid evenly throughout the year, which can be helpful.
Business owners can also build the numbers into a planning routine. Our guide to tax planning for small business owners covers what to review and how often.
How we can help
Help with estimated taxes in Arab, Alabama
Melton Tax Services offers tax planning and consulting to help you understand what to pay and when.
We look at your income, your prior return and how the year is going, then explain what payments may make sense. Learn more on our tax planning page, contact us through the contact page or call 256-586-4635.
We serve Arab and the surrounding area. Please do not send Social Security numbers or documents through the website. Bring them in or call first.
Answers
Questions about estimated quarterly taxes
Are quarterly taxes required or optional?
They are required if you expect to owe enough tax after withholding and credits. The IRS generally does not send reminders, so the responsibility is yours. If you are unsure whether you cross the threshold, it is worth reviewing your numbers early in the year.
Do I make estimated payments if I received no 1099?
Yes, if the income is taxable and no tax was withheld. A form is not required for income to count, and the payment rules look at what you expect to owe.
What if I do not know how much I will earn?
Use a careful estimate and adjust as the year unfolds. You can change later installments if your income turns out higher or lower than expected. Using last year's return as a starting point is common.
Can I pay all of my estimated tax in one payment?
You can pay more or less whenever you like, but the IRS looks at whether enough was paid by each due date. One large payment late in the year may not avoid the penalty for earlier installments.
Does Alabama require estimated payments too?
Alabama has its own income tax and its own estimated payment rules. Federal payments do not count toward the state, so we check both when we plan the year.
Can I get a refund if I overpay?
If you pay more than you owe, the extra is generally either refunded or applied to next year, depending on what you choose on your return. It is money you have loaned to the government, so it pays to estimate carefully.
Read next
Related reading
How To Fill Out a New W-4 and Adjust Withholding
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Tax Planning for Small Business Owners
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Tax Planning
A service Melton Tax Services provides.
Melton Tax Services
Questions about your taxes or your business?
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