Can I Pay All My Estimated Taxes at Once? Early, Monthly or at Year-End

Updated 2026-10-18 · Not tax advice

Figures used: Payment rules are from the 2026 Form 1040-ES, Publication 505 (2026) and the IRS estimated tax FAQ. Penalty figures use the regular installment method from the Form 2210 instructions and the 2026 IRS underpayment rates (7%, 6%, 7%, 7%). The January 2027 rate isn't announced yet, so days in 2027 assume 7%. The worked example uses the 2026 standard deduction ($16,100 single) and 2026 tax rate schedules.

Free: the one-page Q4 2026 estimated tax worksheet (printable, Excel or Google Sheets) and the quarterly estimated tax calculator.

Short version: paying early is always fine, and paying late costs a penalty. The IRS divides the year into four payment periods, and the penalty is figured separately for each one. That means you can pay any amount ahead of time, in one payment or many, but money paid after a due date doesn’t count as on time for that quarter (2026 Form 1040-ES; Pub. 505).

Which ways of paying does the IRS allow?

How you pay	Allowed?	Penalty risk	Source
All of it by the first due date (April 15)	Yes	None, if it plus any withholding reaches your required annual payment	Form 1040-ES, IRS FAQ
Four equal payments on the due dates	Yes	None, if each one is on time and large enough	Form 1040-ES
Monthly, weekly or whenever you get paid	Yes	None, if your running total keeps up with each due date	Form 1040-ES
Ahead of time, scheduled in Direct Pay	Yes, up to 365 days ahead	None	Direct Pay help
All of it in September	Yes	Penalty on April and June	Form 2210 instructions
All of it on January 15	Yes	Penalty on April, June and September	Form 2210 instructions
Nothing until you file by February 1	Yes	January is excused; April, June and September aren’t	Form 1040-ES, Pub. 505

The penalty column assumes the regular schedule: you had income subject to estimated tax from January and you aren’t a farmer or fisher. If your income only started later in the year, your first payment is due for the period it started, and you can pay the whole year’s estimate then (Pub. 505). Form 1040-ES says to figure those payments with the annualized income installment method and file Schedule AI, which keeps the earlier quarters penalty-free (see quarterly taxes in your first year). Fiscal-year filers use the 15th of the 4th, 6th and 9th months of their year and the 1st month of the next. If at least two-thirds of your gross income for 2025 or 2026 is from farming or fishing, different rules apply: one payment by January 15, 2027 (or file and pay in full by March 1, 2027), and a 66⅔% current-year test with no 110% rule (2026 Form 1040-ES). The rest of this guide is for calendar-year filers who aren’t farmers or fishers.

The 2026 due dates are April 15, June 15 and September 15, 2026, and January 15, 2027. Your required annual payment is the smaller of 90% of your 2026 tax or 100% of your 2025 total tax (110% if your 2025 AGI was over $150,000, or $75,000 if you’ll file married filing separately for 2026). Under the regular method, one quarter of it is due by each date (Pub. 505; see the safe harbor guide).

Can I pay it all at once at the start of the year?

Yes. Form 1040-ES says it directly: “You can pay all of your estimated tax by April 15, 2026, or in four equal amounts” (2026 Form 1040-ES). The IRS FAQ says the same about self-employment tax: you can pay quarterly “or pay all of the amount due on the first quarterly payment due date” (IRS FAQ).

Paying early works because of how the IRS applies payments. Each payment goes to the earliest installment that’s still short, and anything extra carries forward to the next one (Form 2210 instructions). One big April payment covers April, and the rest rolls forward to cover June, September and January.

The easiest number to pay up front is 100% of last year’s total tax (110% if your 2025 AGI was over $150,000, or $75,000 if you’ll file married filing separately for 2026), minus any tax you expect to have withheld from a paycheck this year. You know it already, it’s on your 2025 return, and it meets the prior-year safe harbor no matter how much you earn in 2026 (as long as your 2025 return covered a full 12 months). If you married or separated, so your 2026 filing status isn’t the same as 2025’s, refigure last year’s tax first: new joint filers add both spouses’ 2025 tax, and people leaving a joint return split it. The line 12b instructions in Form 1040-ES show how. Whatever your 2026 tax turns out to be, the rest is due when you file.

What it costs you: the money leaves your account months before it has to, and if your income drops you won’t see the extra until your refund. If your income is unpredictable, paying as you go is often easier on cash flow.

Can I pay all my estimated taxes at the end of the year?

You can send it, but you’ll usually pay a penalty for it. The IRS says that if you don’t pay enough by the due date of each payment period, you may owe a penalty “even if you are due a refund” when you file (Pub. 505). The penalty runs on each quarter’s shortfall from its due date until the day you pay it, at the IRS underpayment rate (Form 2210 instructions; IRS quarterly interest rates).

Two rules soften this:

• The February 1 rule. You don’t have to make the January 15, 2027 payment if you file your 2026 return by February 1, 2027 and pay the entire balance with it (2026 Form 1040-ES). That excuses only the January installment. Pub. 505’s own example says you may still owe a penalty for the first three, figured up to the day you file and pay (Pub. 505). More in the Q4 payment guide.
• Uneven income. If you really did earn most of the money late in the year, the annualized income installment method on Form 2210 Schedule AI can shrink the early installments and the penalty with them.

Can I pay estimated taxes monthly?

Yes. You can make more than four payments. Form 1040-ES says that if you do, “make sure the total of the amounts you pay during a payment period is at least as much as the amount required to be paid by the due date for that period” (2026 Form 1040-ES). Extra paid in one period carries forward on Form 2210, so in practice you need your running total to keep up at each due date.

Paying one-twelfth of your required annual payment on the 15th of every month from January does that: by April 15 you’ve paid four-twelfths (more than the one-quarter due), by June 15 six-twelfths (exactly half), by September 15 nine-twelfths (exactly three-quarters) and by December 15 all of it. Start the same monthly amount in April instead, and you’re short at every due date.

Worked example: one freelancer, six ways to pay

Fictional numbers. Sam is single, a freelance developer with no W-2 job, and takes the standard deduction. Sam’s 2025 total tax was $12,000, on AGI under $150,000. Sam’s 2026 net profit comes to $75,000.

Step 1: Sam’s 2026 tax and required annual payment

Step	Calculation	Amount
Self-employment tax	$75,000 × 92.35% × 15.3%	$10,597
AGI	$75,000 − half of SE tax ($5,299)	$69,701
QBI deduction	Smaller of 20% × ($75,000 − $5,299) or 20% × ($69,701 − $16,100)	$10,720
Taxable income	$69,701 − $16,100 − $10,720	$42,881
Income tax	$1,240 + 12% × ($42,881 − $12,400)	$4,898
Total 2026 tax	$4,898 + $10,597	$15,495
90% of 2026 tax	$15,495 × 90%	$13,946
Required annual payment	Smaller of $13,946 or 100% of 2025 tax ($12,000)	$12,000
Required by each due date	$12,000 ÷ 4	$3,000

The self-employment tax and the 92.35% factor come from the Form 1040-ES self-employment tax worksheet; the $16,100 standard deduction and the 12% bracket starting at $12,400 are the 2026 single figures (2026 Form 1040-ES; Pub. 505).

Step 2: what each way of paying costs

How Sam pays the $12,000	Short at a due date?	Underpayment penalty
A. All $12,000 on April 15, 2026	No	$0
B. $3,000 on each of the four due dates	No	$0
C. $1,000 on the 15th of every month, January to December 2026	No	$0
D. All $12,000 on September 15, 2026	April and June	about $133
E. All $12,000 on January 15, 2027	April, June and September	about $344
F. Nothing until filing and paying everything on February 1, 2027	April, June and September (January excused)	about $373

In options A to E, Sam still has $3,495 ($15,495 − $12,000) to pay by April 15, 2027. In option F, Sam pays all $15,495 with the return on February 1.

Step 3: the arithmetic behind option E

The penalty is the shortfall × the rate × the days late ÷ 365, worked through each IRS rate period. The 2026 rates were 6% for April to June and 7% for July to December (IRS quarterly interest rates).

Installment	Days late	Calculation	Penalty
April 15 ($3,000)	275	$3,000 × (6% × 76 + 7% × 199) ÷ 365	$151.97
June 15 ($3,000)	214	$3,000 × (6% × 15 + 7% × 199) ÷ 365	$121.89
Sept. 15 ($3,000)	122	$3,000 × 7% × 122 ÷ 365	$70.19
Jan. 15 ($3,000)	0	Paid on time	$0
Total			$344.05

Option D is the same math stopping at September 15: $81.78 for April (153 days) plus $51.70 for June (92 days), or $133.48. Options E and F include days in January 2027, figured at an assumed 7% because that rate isn’t announced yet. Option F also gets the February 1 rule, so its January installment carries no penalty and the other three run to February 1: $161.75 + $131.67 + $79.97 = $373.39.

The example ignores state tax, credits and other income.

Does a W-2 job change the answer?

Yes, in your favor. Federal income tax withheld from wages is treated as paid in equal amounts on each of the four due dates unless you choose to show the actual dates (Form 2210 instructions). So extra withholding in the fall counts toward April, June and September, which a late estimated payment can’t do. If you have a paycheck, or your spouse does and you file jointly, raising withholding with a new Form W-4 is the most reliable way to catch up late in the year without a penalty for the earlier quarters. See raising W-4 withholding for side-hustle income for Step 4(c) math; the Instacart guide has another worked example.

Can I pay estimated taxes early, or for next year?

Yes, both.

• Schedule ahead. IRS Direct Pay lets you schedule a payment up to 365 days in advance and change or cancel it up to two business days before (Direct Pay help). Choose Estimated Tax, 1040ES and the tax year the money is for. The step-by-step is in how to pay estimated taxes online.
• Apply a refund forward. On your return you can credit part or all of an overpayment to next year’s estimated tax instead of taking it as a refund. If you file on time, it counts as paid on April 15. You can’t get that money back until you file the following year’s return (Pub. 505).

How to pay it all at once

1. Work out your required annual payment: the smaller of 90% of this year’s projected tax or 100% of last year’s total tax (110% if last year’s AGI was over $150,000, or $75,000 if you’ll file married filing separately this year). If your filing status changed since last year, use the Form 1040-ES line 12b rules to refigure last year’s tax. The Form 1040-ES worksheet guide or the free quarterly calculator does the math.
2. Subtract the federal tax you expect to have withheld this year (from your job, plus your spouse’s if you file jointly). What’s left is your lump sum. If you expect to owe less than $1,000 after withholding and credits, you don’t need estimated payments at all (2026 Form 1040-ES).
3. Pay it by April 15 with IRS Direct Pay or your Online Account, as Estimated Tax for the current tax year. Save the confirmation number.
4. Track your actual profit during the year. If your tax will be far above last year’s, set the extra aside for April. See how much to set aside for taxes on 1099 income.
5. Already behind this year? Pay the shortfall now to stop the penalty growing; see what to do after a missed estimated tax payment and how the underpayment penalty works. Planning next year? Check the projected 2027 due dates.

Sources

• Form 1040-ES (2026), Estimated Tax for Individuals, IRS (Payment Due Dates; more than four payments; January payment rule; Self-Employment Tax and Deduction Worksheet; 2026 Tax Rate Schedules)
• Publication 505 (2026), Tax Withholding and Estimated Tax, IRS (When To Pay Estimated Tax; January payment; Credit an Overpayment)
• Estimated tax FAQ: Should self-employment taxes be paid quarterly or yearly?, IRS
• Instructions for Form 2210, IRS (penalty worksheet, order payments are applied, withholding treated as paid evenly)
• Quarterly interest rates, IRS (2026 underpayment rates)
• Direct Pay help, IRS (scheduling up to 365 days in advance)

This guide is general information, not tax advice. Confirm figures with IRS.gov or a qualified tax professional.

FAQ

Can I pay all my estimated taxes at once?

Yes. Form 1040-ES says you can pay all of your estimated tax by the first due date (April 15, 2026 for tax year 2026) instead of in four equal amounts. If that one payment plus any withholding reaches 100% of last year's total tax (110% if last year's AGI was over $150,000, or $75,000 if you'll file married filing separately this year), and last year's return covered all 12 months, it also meets the prior-year safe harbor for the whole year.

Can I pay all my estimated taxes at the end of the year?

You can, but you'll usually owe an underpayment penalty for the April, June and September installments, figured from each due date until the day you pay. Filing your return and paying in full by February 1, 2027 only removes the January 15 installment. The annualized income installment method can help if your income really did come in late. Farmers and fishers who get at least two-thirds of their gross income from farming or fishing have their own rule and can pay everything by January 15.

Can I pay estimated taxes monthly?

Yes. You can make more than four payments. To avoid a penalty, the running total you've paid by each due date has to reach the running total required by then. Paying one-twelfth of your required annual payment every month from January does that.

Can I pay estimated taxes early or for next year?

Yes. You can pay any installment before its due date, and IRS Direct Pay lets you schedule a payment up to 365 days ahead. Pick the right tax year. You can also apply part or all of a refund to next year's estimated tax; if you file on time, it counts as paid on April 15.

What if I pay it all in April and my income goes up later?

If your one payment plus any withholding was at least 100% of last year's total tax (110% if last year's AGI was over $150,000, or $75,000 if you'll file married filing separately this year), and last year's return covered all 12 months, you're inside the safe harbor and owe no underpayment penalty, even if this year's tax is higher. You still owe the difference when you file by April 15 of the following year.