Delaware Quarterly Tax Calculator
Calculate your estimated quarterly tax payments for federal and Delaware state taxes. Designed for self-employed individuals, freelancers, and independent contractors.
DE State Tax: Progressive 0.0% - 6.6%
Quarterly Payment Amount
$6,566
Per quarter (4 remaining)
Annual Tax Breakdown
2026 Payment Schedule
Jan 1 - Mar 31
Due: April 15, 2026
$6,566
Apr 1 - May 31
Due: June 15, 2026
$6,566
Jun 1 - Aug 31
Due: September 15, 2026
$6,566
Sep 1 - Dec 31
Due: January 15, 2027
$6,566
Don't miss your quarterly payments!
The IRS may charge penalties and interest if you underpay or pay late. Consider setting up automatic payments or calendar reminders.
Delaware Quarterly Tax Highlights
Delaware has 7 tax brackets with rates from 0% to 6.6%
No sales tax in Delaware
First $2,000 of income is tax-free
Use Form 200-ES for quarterly payments
Delaware Quarterly Tax FAQ
What is Delaware's income tax rate?
Delaware has a progressive income tax with 7 brackets. The first $2,000 is tax-free, then rates range from 2.2% to 6.6% on income over $60,000.
Delaware Estimated Quarterly Tax Payments for Self-Employed Workers in 2026
Self-employed workers in Delaware must pay both federal estimated taxes to the IRS and state estimated taxes to the Delaware Division of Revenue. Delaware has a progressive income tax with 7 brackets and rates ranging from 0% to 6.6%. If you expect to owe $400 or more in Delaware state income tax after withholding and credits, you must make quarterly estimated payments using Form 200-ES.
Delaware has no sales tax, which partially offsets its income tax burden. The first $2,000 of taxable income is tax-free, providing a small built-in exemption for all filers.
| Tax Layer | Rate / Range | Filed With | Form |
|---|---|---|---|
| Federal income tax | 10% – 37% | IRS | 1040-ES |
| Self-employment tax | 15.3% | IRS | 1040-ES / SE |
| Delaware state income tax | 0% to 6.6% | Delaware Division of Revenue | Form 200-ES |
How Delaware Income Tax Affects Your Quarterly Payments
Delaware taxes personal income — including self-employment income — across 7 progressive brackets. The brackets below apply to single filers for tax year 2026. Married filing jointly thresholds are typically higher.
| Bracket | Taxable Income | Marginal Rate |
|---|---|---|
| 1 | $0 – $2,000 | 0% |
| 2 | $2,000 – $5,000 | 2.2% |
| 3 | $5,000 – $10,000 | 3.9% |
| 4 | $10,000 – $20,000 | 4.8% |
| 5 | $20,000 – $25,000 | 5.2% |
| 6 | $25,000 – $60,000 | 5.55% |
| 7 | $60,000+ | 6.6% |
To estimate your Delaware quarterly payment, calculate your projected state tax liability using the brackets above, then divide by four. Delaware payments are made to the Delaware Division of Revenue through their online portal at revenue.delaware.gov or by mail using Form 200-ES.
Federal Self-Employment Tax and Quarterly Due Dates
All self-employed workers must pay federal self-employment (SE) tax of 15.3% on 92.35% of net earnings. This consists of 12.4% for Social Security (on earnings up to $184,500 in 2026) and 2.9% for Medicare (no cap). An additional 0.9% Medicare surtax applies to earnings above $200,000 (single filers).
Both Delaware and federal estimated tax payments follow the same quarterly schedule:
| Quarter | Income Period | Due Date |
|---|---|---|
| Q1 | January 1 – March 31 | April 15, 2026 |
| Q2 | April 1 – May 31 | June 15, 2026 |
| Q3 | June 1 – August 31 | September 15, 2026 |
| Q4 | September 1 – December 31 | January 15, 2027 |
To avoid underpayment penalties, pay at least 100% of your prior-year tax liability (or 110% if your AGI exceeds $150,000) spread across four equal payments, or at least 90% of your current-year tax. You can deduct 50% of your self-employment tax from your adjusted gross income, reducing both your federal and Delaware taxable income.
Related Calculators
Official References
This calculator uses current federal and Delaware tax rates and schedules:
- IRS Estimated Tax Guidelines
Federal quarterly tax requirements and Form 1040-ES
- Delaware Division of Revenue
Official Delaware tax authority
- IRS Self-Employment Tax
Social Security and Medicare tax information
This calculator provides estimates based on 2026 tax rates. Your actual tax liability may vary based on deductions, credits, and other factors. Consult a tax professional for personalized advice.