Delaware Tax Calculator

The Delaware State Tax Calculator (DES Tax Calculator) uses the latest Federal tax tables and State Tax tables for 2025/26. To estimate your tax return for 2025/26, please select the 2025 tax year.

You can quickly estimate your Delaware State Tax and Federal Tax by selecting the tax year, your filing status, Gross Income and Gross Expenses, this is a great way to compare salaries in Delaware and for quickly estimating your tax commitments in 2025. Alternatively, you can enter specific information into the Income, Expenses, Tax Status etc. tabs and produce a more detailed tax calculation for Delaware including applying any additional local / County taxes which you may be subject to.

Delaware Tax Calculator [ Federal & State ]
Delaware Tax Calculator - Quick Tax Estimator
Choose a different State
Tax Year
Filing Status:
Gross Income (F1040 L7-21)		$
*** Please Enter your Gross income.
*** Please Enter your Gross income.
Gross Expenses (F1040 L23-35)		$
		Add Itemized Deductions? $
FICA Exempt Income		$
Tax State
Your Income in detail (F1040 L7-21)
	Wages, salaries, tips, etc.	$
	Taxable interest	$
	Taxable interest	$
	Ordinary dividends	$
	Taxable refunds, credits, offsets etc.	$
	Alimony received	$
	Business income or loss	$
	Capital gain or loss	$
	Other gains or losses	$
	IRA distributions (Taxable)	$
	Pensions and annuities (Taxable)	$
	Rental real estate, royalties etc.	$
	Farm income or loss	$
	Unemployment compensation	$
	Social security benefits¹	$
	Other income	$
	Gross Income	$
¹ Line 20a not included in Gross income, See Social Security Benefits calculation for calculation on line 20b as part of Taxable income
Your Expenses in detail (F1040 L23-35)
	Educator expenses	$
	Certain business expenses of reservists etc	$
	Health savings account deduction.	$
	Moving expenses	$
	Deductible part of self-employment tax	$
	Self-employed SEP, SIMPLE etc.	$
	Self-employed health insurance deduction	$
	Penalty on early withdrawal of savings	$
	Alimony paid b Recipient's SSN	$
	IRA deduction	$
	Student loan interest deduction	$
	Tuition and fees	$
	Domestic production activities deduction	$
	Gross Expenses	$
Your Tax Status & Family [Please select all that apply]
I am between 50 and 65 years of age I am 65 years of age or older My spouse is 65 years of age or older I am blind My spouse is blind
Deaf, Blind or disabled¹
Qualified Disabled Veterans
Number of your dependants¹
Number of children for Tax Credit claim
¹ Do not include yourself or your spouse.
Delaware County/Local Tax Options
	Add Local/County Tax in Delaware? %
529 Plan Contributions		$
What is the "Delaware County/Local Tax Options" tab for?
There are a lot of different tax systems in the USA and this can often make it difficult to cater for all local and county taxes. This tab allows you to enter your local / county tax rate in Delaware manually so you can have a more refined tax calculation / forecast for your tax return in Delaware The 529 Plan Contributions allows tax deductions in certain states, currently the Tax Form Calculator only applies this tax credit in Indiana, please contact us if your State provides 529 Plan Contributions tax credits and we will integrate it into this tool.
IRA and 401K Calculator
Gross 401K Withholding		$
Gross IRA Deductions		$
Withholdings Calculator
Gross Federal Withholding		$
Gross Delaware State Withholding		$
Gross Medicare Withholding		$
Gross Social Security Withholding		$
Gross Tax-Deferred Retirement Plan		$
Gross Cafeteria or other pre-tax plan		$
Gross Earned Income Tax Credit		$
What is the Withholdings Calculator tab for?
The Withholdings inputs allow you to enter funds that you have already kept to one side for payment of your annual Delaware taxes and/or your Federal Taxes. This is a useful section if you are looking to save money to pay your annual tax return and are using the Delaware Tax Calculator to estimate your Delaware state taxes and Federal taxes.

Choose Type of Calculation:

Delaware State Tax Calculator ( Tax Calculator)

The Delaware tax calculator is updated for the 2025/26 tax year. The DE Tax Calculator calculates Federal Taxes (where applicable), Medicare, Pensions Plans (FICA Etc.) allow for single, joint and head of household filing in DES.

The Delaware income tax calculator is designed to provide a salary example with salary deductions made in Delaware. You can choose an alternate State Tax Calculator below:

AL AK AZ AR CA CO CT DE FL GA HI ID IL IN IA KS KY LA ME MD MA MI MN MS MO MT NE NV NH NJ NM NY NC ND OH OK OR PA RI SC SD TN TX UT VT VA WA WV WI WY

How to calculate income tax in Delaware in

How to use the tax calculator

Enter your annual income in Delaware.
Press Calculate to see your Delaware tax and take home breakdown including Federal Tax deductions

How to use the advanced Delaware tax calculator

Enter your income.
Check the box - Advanced DES Income Tax Calculator
Confirm Number of Dependants
Confirm Number of Children you claim Tax Credits for
Select other relevant tax factors (Age related tax allowances, head of household tax allowance, tax-deferred retirement plan, cafeteria etc)
Click Calculate to see your tax, medicare and take home breakdown - Federal Tax made Simple

2025/26 Delaware State Tax Refund Calculator

Calculate your total tax due using the DE tax calculator (update to include the 2025/26 tax brackets). Deduct the amount of tax paid from the tax calculation to provide an example of your 2025/26 tax refund.

The Delaware State Tax calculator is updated to include:

The latest Federal tax rates for 2025/26 tax year as published by the IRS
The latest State tax rates for 2025/26 tax year and will be update to the 2026/2027 State Tax Tables once fully published as published by the various States.

Updates to the Delaware State Tax Calculator

The following updates have been applied to the Tax calculator:

Selectable Tax year
Tax calculations allow for Tax-Deferred Retirement Plan
Tax calculations allow for Cafeteria or other Pre-Tax Plans
Selectable Tax year
Updated to include 2025/26 Federal tax rates
Updated to apply Medicare and Social Security deductions as Pre-Federal Tax calculation Thank you Justin Duel

The Delaware State tax calculator is as good as the feedback, your support, requests and bug catches help to improve the accuracy of the tax calculator for all.

This DE State Tax Calculator balances ease of use with transparency of salary calculation but is provided for example purposes only. Remember that you should always seek professional advice and audit your DE State and Federal tax returns.