📊

US Quarterly Tax Payment Calculator

Calculate your estimated quarterly tax payments to avoid underpayment penalties. Perfect for freelancers and small business owners.

Income & Withholdings

Expected Self-Employment Income

W-2 Wages (if any)

Filing Status

State

Withholdings Already Paid (YTD)

Include any estimated tax payments or W-2 withholdings already made this year.

Understanding Quarterly Estimated Tax Payments

If you're self-employed, a freelancer, or earn significant income without tax withholding, the IRS expects you to pay estimated taxes quarterly rather than waiting until April. Failing to make these payments on time can result in underpayment penalties.

Who Needs to Pay Quarterly Taxes?

You generally need to make estimated tax payments if you expect to owe $1,000 or more in taxes after subtracting withholdings and credits. This applies to self-employed individuals, freelancers, landlords, investors, and anyone with income not subject to employer withholding.

Payment Due Dates

Q1: April 15 — for income earned January through March
Q2: June 15 — for income earned April through May
Q3: September 15 — for income earned June through August
Q4: January 15 (next year) — for income earned September through December

Safe Harbor Rules

To avoid underpayment penalties, you must pay at least one of the following through withholding and estimated payments:

90% of your current year's tax liability, or
100% of your prior year's tax liability (110% if your AGI was above $150,000)

Meeting either threshold qualifies you for the "safe harbor" provision, meaning you won't owe penalties even if you end up owing additional tax when you file your return.

Tips for Managing Quarterly Payments

Set aside 25-30% of each payment you receive into a separate savings account earmarked for taxes. Many freelancers are caught off guard by their tax bill because they spend income without accounting for the tax liability. Using IRS Form 1040-ES or an online tool like this calculator helps you stay on track.

Loading interactive tool...

Share this tool

How to Use the US Quarterly Tax Payment Calculator

1
Enter your expected annual income
Input your projected total income for the tax year, including self-employment, freelance, and any other taxable earnings.
2
Enter deductions
Add expected deductions such as business expenses, retirement contributions, and the standard or itemized deduction.
3
View quarterly payment amounts
Review the estimated tax owed for each quarter, divided into four equal installments.
4
See payment due dates
Check the IRS quarterly due dates so you can schedule payments on time and avoid underpayment penalties.

Sources & Verification

Tax rates verified against official government sources for current published tax years

IRS Form 1040-ES

Published by ConvertCrunch Editorial Team | Our Methodology

Frequently Asked Questions

Who needs to make quarterly estimated tax payments?

You generally need to make quarterly payments if you expect to owe $1,000 or more in federal tax after subtracting withholding and refundable credits. This typically applies to freelancers, independent contractors, self-employed individuals, landlords, investors with significant capital gains, and retirees. If your income is primarily from a W-2 job with adequate withholding, you likely do not need to make estimated payments.

When are quarterly tax payments due?

Quarterly estimated tax payments are due on April 15, June 15, September 15, and January 15 of the following year. If a due date falls on a weekend or federal holiday, the deadline shifts to the next business day. Despite being called quarterly, the periods are not equal: Q1 covers January through March, Q2 covers April and May, Q3 covers June through August, and Q4 covers September through December.

What happens if I miss a quarterly tax payment?

The IRS charges an underpayment penalty calculated using the federal short-term interest rate plus 3 percentage points, applied to the unpaid amount for each day it remains outstanding. The penalty is calculated separately for each quarter, so missing one deadline only triggers a penalty for that period. You can avoid penalties by paying at least 90% of the current year's tax or 100% of last year's tax (110% if your AGI exceeded $150,000).

How do I calculate my quarterly estimated tax?

Estimate your total annual income, then calculate expected federal income tax plus self-employment tax. Subtract any expected withholding from W-2 income or other sources. Divide the remaining amount by four for equal payments. Alternatively, use the annualized income installment method on Form 2210, Schedule AI, if your income varies throughout the year. This method lets you pay less in quarters when you earn less.

Explore Related Resources

Go deeper with workflow guides, side-by-side comparisons, and reusable embeds connected to this tool.

Guides

Comparisons

US Income Tax Estimator vs US Quarterly Tax Payment Calculator

Embed This Tool

Add this calculator to your website with a simple iframe.

Continue Through Topic Hubs

This tool is part of larger workflows. Open a hub to continue with the next relevant tools.

Tax and Payroll Optimization Hub

Paycheck, withholding, tax planning, and reimbursement workflows for recurring money operations.

tax calculatorspayroll calculatorspricing calculators

Freelancer Unit Economics Hub

Pricing, margin, tax, and workload tools for independent operators.

freelancer toolspricing calculatorstax calculators

UK Tax & Payroll Hub

End-to-end UK tax estimation, National Insurance, and payroll workflows for employees and self-employed workers.

tax calculatorspayroll calculators

Recommended Next Steps

Continue your workflow with these tools from the same playbook.

💰

Paycheck Calculator

Estimate take-home pay after federal taxes, state taxes, and payroll deductions for hourly or salary income.

💰

Overtime Pay Calculator

Calculate overtime pay based on regular hours, overtime hours, and labor law overtime multipliers.

📊

US Income Tax Estimator

Estimate your income tax using current tax brackets and deduction values. Free online, browser-based tool with instant results and no signup.

Related Tools

📊

Canada Self-Employment Tax Calculator

Calculate CPP or QPP contributions for self-employed individuals in Canada, including CPP2 on the second earnings ceiling.

📊

UK Self-Employment Tax Calculator

Calculate UK National Insurance contributions (Class 2 and Class 4) for self-employed workers based on net profits.

📊

Australia Self-Employment Tax Calculator

Calculate the Australian Medicare Levy and Medicare Levy Surcharge for sole traders and self-employed workers.

📊

Germany Self-Employment Tax Calculator

Calculate German social insurance contributions (health, long-term care, optional pension) for self-employed freelancers.

📊

US Capital Gains Tax Calculator

Estimate short-term and long-term capital gains tax based on holding period, basis, and filing status.

📊

US Estimated Tax Penalty Calculator

Estimate underpayment penalties for quarterly taxes using projected payments and annual liability.

📊

UAE Income Tax Calculator

Model UAE personal income tax (0%) and optionally estimate 5% VAT impact on annual spending.

📊

Netherlands Self-Employment Tax Calculator

Calculate Dutch ZVW health contribution and social insurance premiums (AOW, ANW, WLZ) for self-employed zzp’ers.

Next Step

Continue with Paycheck Calculator

Open →