Quarterly Taxes
How to Pay Quarterly Estimated Taxes in the US (2025 Guide)
By ClearTaxGuide · Updated May 2026 · 7 min read ✓ 2025 IRS figures
If you freelance, run a small business, or earn any income without tax withholding, quarterly estimated taxes are a requirement — not an option. Missing them can result in IRS penalties even if you pay everything owed by April. Here is exactly how they work and how to stay on top of them in 2025.
1. What are quarterly estimated taxes?
The US tax system operates on a pay-as-you-go basis. Employees have taxes automatically withheld from every paycheck. Freelancers and self-employed individuals have no employer to do this — so the IRS requires them to make direct payments four times a year, called estimated tax payments.
These payments cover two things: your self-employment tax (15.3%) and your federal income tax. Both are owed throughout the year, not just at tax return time.
2. Do you need to pay them?
You are generally required to make quarterly estimated payments if you expect to owe $1,000 or more in federal taxes for the year after subtracting any withholding and refundable credits.
If any of the following apply, you almost certainly need to make quarterly payments:
- You freelance or work as an independent contractor
- You are self-employed full time or part time
- You have significant investment or rental income without withholding
- You earn income from a side business alongside a W-2 job
Exception: If you had zero tax liability last year and were a US citizen or resident for the full year, you are not required to make estimated payments this year — even if you earn significant income. This is a narrow exception most freelancers will not qualify for.
3. 2025 quarterly tax deadlines
| Payment period | Due date | Status |
|---|
| January 1 – March 31, 2025 | April 15, 2025 | Q1 |
| April 1 – May 31, 2025 | June 16, 2025 | Q2 |
| June 1 – August 31, 2025 | September 15, 2025 | Q3 |
| September 1 – December 31, 2025 | January 15, 2026 | Q4 |
Source: IRS Publication 505 (2025)
Note: If a due date falls on a weekend or federal holiday, it shifts to the next business day. June 16 in 2025 is because June 15 falls on a Sunday.
4. How much to pay each quarter
There are two accepted methods for calculating quarterly payments:
Method 1: Safe harbor (simplest)
Pay at least 100% of last year's total tax liability, divided into four equal payments. If your adjusted gross income exceeded $150,000 last year, you must pay 110% of last year's liability instead.
This method is predictable and eliminates any underpayment penalty — even if you earn significantly more this year.
Method 2: Estimate this year's liability
Estimate your actual income and calculate roughly what you will owe. Use our free self-employment tax calculator to get a close estimate, then divide by four.
Practical rule of thumb: Set aside 25–30% of every client payment into a separate savings account. At each quarterly deadline, pay the IRS from that account. This approach works for most freelancers and avoids the mental burden of recalculating every quarter.
Example — net profit $90,000 estimated for 2025
Self-employment tax: $90,000 × 0.9235 × 15.3% = $12,716
Federal income tax (single, estimated): approx. $10,500
Total annual estimated tax: approx. $23,216
Divide by 4: approximately $5,804 per quarter
5. How to pay online (step by step)
The easiest and fastest method is IRS Direct Pay at irs.gov/payments. It is completely free and requires no registration or account.
- Go to irs.gov/payments and click "Pay Now with Direct Pay"
- Select "Estimated Tax" as the reason for payment
- Select "1040-ES" as the tax form
- Enter the tax year (2025) and the payment period (Q1, Q2, Q3, or Q4)
- Enter your bank account details (routing and account number)
- Confirm the amount and submit — you will receive a confirmation number
Payments made by 8pm Eastern time are typically processed the same business day. You can schedule payments up to 30 days in advance.
6. What happens if you miss a payment?
The IRS charges an underpayment penalty for each quarter you pay too little or pay late. The penalty rate in 2025 is the federal short-term interest rate plus 3 percentage points — currently around 7–8% annualized on the underpaid amount.
The penalty is calculated separately for each quarter, not as a flat annual fee. This means underpaying in Q1 generates a larger penalty than underpaying in Q4, since the penalty runs from the due date through the filing deadline.
Important: Paying late is always better than not paying at all. If you miss a deadline, make the payment as soon as possible to stop the penalty from accruing further. You can calculate any underpayment penalty using IRS Form 2210 when you file your annual return.
7. FAQ
When are quarterly estimated taxes due in 2025?
April 15, June 16, September 15, 2025 — and January 15, 2026 for the fourth quarter.
Do I need to pay quarterly taxes if I have a W-2 job and a side business?
Possibly. If your side income is large enough that withholding from your W-2 job does not cover it, you may owe estimated payments on the side business income. A good approach: increase withholding on your W-2 by submitting a new Form W-4, which can sometimes cover the additional liability without making separate quarterly payments.
What form do I use to pay quarterly estimated taxes?
You use Form 1040-ES if paying by mail. Online payments through IRS Direct Pay do not require you to submit any form — the system records the payment automatically.
Can I pay all my estimated taxes at once?
Technically, no — each quarter has its own deadline. However, if you pay all four quarters by the Q1 deadline (April 15), the IRS will generally apply payments appropriately and you will avoid any quarterly penalties.