Tax Basics

Quarterly Tax Deadlines 2026 Calendar

2026-06-02 · Last reviewed: 2026-07-05

Knowing your quarterly estimated tax deadlines is the first line of defense against IRS penalties. This guide provides the complete 2026 schedule, payment strategies, safe harbor rules, and everything you need to meet each deadline.

If you're self-employed and expect to owe $1,000 or more in taxes for the year, the IRS requires quarterly estimated tax payments. Unlike W2 employees who have taxes withheld from every paycheck, freelancers and independent contractors must proactively set aside money and make four payments throughout the year.

2026 Quarterly Tax Deadline Calendar

Why Q2 Is Due Sooner

The Q2 deadline (June 15) comes just two months after Q1 (April 15). This compressed schedule catches many freelancers off guard. If you just made your Q1 payment on April 15, you have only two months to save for Q2.

What Happens If You Miss a Deadline

The IRS charges underpayment penalties — currently around 7-8% annual interest on the underpaid amount, calculated from each quarter's deadline. The penalty is computed daily, so even being a few days late can trigger penalties.

Weekend and Holiday Rule

If a deadline falls on a weekend or federal holiday, the due date moves to the next business day. For 2026:

• April 15, 2026 is a Wednesday — deadline stands
• June 15, 2026 is a Monday — deadline stands
• September 15, 2026 is a Tuesday — deadline stands
• January 15, 2027 is a Friday — deadline stands

How Much to Pay Each Quarter

Each payment should cover approximately 25% of your total estimated tax for the year. But calculating the exact amount requires understanding your full tax picture.

The Two Calculation Methods

Method 1: Prior Year Safe Harbor

Pay 100% of your prior year's total tax (110% if your AGI exceeded $150,000). This protects you from penalties even if you end up owing more.

Pros: Simple, protects against penalties regardless of current year income Cons: May underpay if current year income is much higher, leading to a large April bill

Method 2: Current Year Estimate

Estimate your current year tax liability and pay 25% each quarter.

Pros: More accurate, avoids large April bill Cons: Requires income estimation, may underpay if income spikes

State Quarterly Tax Deadlines

Most states require quarterly estimated tax payments too. Here are key state deadlines:

Always check your state's tax website for specific requirements and deadlines.

How to Make Quarterly Tax Payments

IRS Payment Methods

Setting Up IRS Direct Pay

1. Go to IRS.gov/directpay
2. Select "Estimated Tax" as payment type
3. Choose the applicable quarter
4. Enter your bank routing and account numbers
5. Confirm and submit
6. Save the confirmation number

The Annualized Income Method for Variable Income

Freelancers with fluctuating income can use the annualized income installment method (Form 2210) to match payments to actual income timing.

How It Works

Instead of paying 25% each quarter, you calculate tax based on income earned through each quarter's cutoff date:

This method is more complex but can significantly reduce penalties if your income is seasonal or irregular.

Example: Freelancer with Seasonal Income

In this scenario, the annualized method allows lower payments in slow quarters (Q1) and higher payments in busy quarters (Q3), better matching cash flow.

Pro Tips to Never Miss a Deadline

1. Set Up a Tax Savings Account

Transfer 25-35% of every client payment to a separate high-yield savings account. This ensures the money is there when quarterly deadlines arrive.

2. Automate Reminders

Set calendar reminders one week before each deadline:

• April 8 — Q1 due April 15
• June 8 — Q2 due June 15
• September 8 — Q3 due September 15
• January 8 — Q4 due January 15

3. Use a Tax App or Software

Apps like TaxJar, QuickBooks Self-Employed, and Bonsai can automatically track income and estimate quarterly payments. Read our Freelance Tax Apps guide for recommendations.

4. Pay Early If You Have the Cash

If you have the money, pay early — there's no penalty for overpaying or paying ahead of schedule. The IRS will refund any overpayment when you file your annual return.

5. Don't Skip a Quarter

Even if money is tight, pay something. Partial payments reduce the underpayment penalty proportionally. Paying $2,000 instead of $9,000 is better than paying $0.

What If You Can't Pay?

If you can't make a quarterly payment:

1. Pay what you can — partial payments reduce penalties
2. File Form 2210 — request a waiver using the annualized method
3. Set up an installment plan — if you owe less than $50,000, you can set up a monthly payment plan with the IRS
4. Don't ignore it — penalties and interest compound, and the IRS can file liens

Read our IRS Underpayment Penalty guide for more on avoiding and resolving penalties.

Frequently Asked Questions

Q: When are quarterly tax payments due? Quarterly estimated tax payments are due four times per year: April 15 (Q1: January-March), June 15 (Q2: April-May), September 15 (Q3: June-August), and January 15 (Q4: September-December). If a deadline falls on a weekend or holiday, it moves to the next business day.

Q: How much should each quarterly payment be? Divide your expected annual tax liability by four for equal payments, or use the annualized income method if your income varies seasonally. Use our Quarterly Tax Calculator to determine exact amounts based on your projected annual income and deductions.

Q: What happens if I miss a quarterly payment? The IRS charges an underpayment penalty of approximately 8% annualized on the unpaid amount. The penalty accrues daily from the missed deadline until the payment is made. Make the payment as soon as you realize you missed it to minimize penalties.

The Bottom Line

Quarterly tax deadlines are non-negotiable for freelancers. Mark the four dates, set aside 25-35% of income, and use the safe harbor or annualized method to calculate payments. Missing deadlines costs 7-8% annual interest — far more than any savings account earns.

Use our Quarterly Tax Calculator to calculate your exact quarterly payments. For a complete freelancer tax timeline, read our First Year Freelancer Tax Guide.

Source: IRS 2026 tax publications, Social Security Administration, and state revenue departments. This article is for informational purposes only and should not be considered tax advice.