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Delaware tax guide
Last updated: 16 September 2026
Delaware can be tax-friendly for many retirees, but the rules are not all simple. Social Security and Railroad Retirement benefits are not taxed by Delaware. Many people age 60 or older can also subtract up to $12,500 of eligible retirement income for the 2026 tax year. Property-tax help is different because state, county, and city programs have separate rules and deadlines.
Bottom Line
Start with the tax problem you actually have. For a Delaware income-tax question, finish the federal return first and then use the state rules. For a home tax bill, check the statewide senior school-tax credit and your county or city program. If you are making 2026 estimated payments, the next scheduled payment date is 15 September 2026.
Deadline Alert
Delaware’s 2026 estimated-tax instructions list 15 September 2026 as the payment date for the period from June 1 through August 31. Estimated payments may be required when expected Delaware tax after withholding and credits is high enough. Check the 2025 resident instructions before paying or skipping a payment.
Start Here
- Income tax: Gather your federal return, Social Security statement, 1099-R forms, and other income records.
- Property tax: Find your county and municipality, then check every program that applies to your home.
- Need help: Use our senior tax help guide for free filing and problem-solving options.
| Your question | Start here | Ask this |
|---|---|---|
| Do I owe Delaware income tax? | Federal return, then Delaware return | Which Delaware subtractions apply to my income? |
| Is Social Security taxed? | Delaware retirement rules | Do I still need to file because of other income? |
| My property tax is too high | County assessment or tax office | Which senior exemptions and credits fit me? |
| I rent and costs are too high | Housing or emergency assistance | What rent, utility, or shelter help is open? |
| I cannot prepare my return | VITA or TCE | Can you handle my pension and Delaware return? |
What Has Changed
- New retirement law: Delaware Senate Bill 219 was signed on August 17, 2026. The signed bill record phases the military-pension exclusion to $15,000 for tax year 2027, $20,000 for 2028, and $25,000 for 2029 and later. Starting with tax year 2027, the law also adds Delaware domicile rules for people age 60 or older using the retirement subtraction. Delaware’s 2026 tax-year limit remains $12,500.
- New Castle billing: Because of the 2026 reassessment review, New Castle County says FY27 property-tax bills are expected in mid-November and are due December 31, 2026. Check the county’s tax information page before paying.
- Wilmington late applications: The city’s specific 2026 senior exemption form lists later partial-exemption dates after the full-year deadline. The next listed date is October 2, 2026 for a 75% exemption. See the 2026 city application and confirm with Revenue before filing.
How Delaware Taxes Seniors
Delaware begins with federal adjusted gross income. That is why the state tells residents to complete the federal return first. The Delaware return then applies state additions, subtractions, deductions, and credits.
Delaware does not tax Social Security benefits or Railroad Retirement benefits. The state’s personal income-tax FAQs also confirm the main retirement-income subtraction for people age 60 or older.
Delaware still has a graduated individual income tax. Current rates run from 2.2% to 6.6% on taxable income above the zero-rate range. The official tax-rate schedule shows the brackets. Delaware also has no state or local sales tax, although businesses can owe gross-receipts taxes.
If you need federal context as well as state rules, our national senior tax guide explains common federal issues. If your question is specifically about benefits, use our Social Security tax guide.
Filing Rules and Thresholds
The 2025 Delaware resident return was due April 30, 2026 for calendar-year filers. An extension could move the filing deadline to October 15, 2026, but it did not extend the time to pay tax due. Delaware’s current personal income-tax forms page has the resident return, instructions, extension form, and 2026 estimated-tax vouchers.
The filing thresholds below come from Delaware’s 2025 resident instructions. They use individual Delaware adjusted gross income, not the couple’s combined amount shown in one column.
| Age or status | Single or head | Married joint | Married separate |
|---|---|---|---|
| Under 60 | $9,400 | $15,450 | $9,400 |
| Age 60 to 64 | $12,200 | $17,950 | $12,200 |
| 65+ or blind | $14,700 | $20,450 | $14,700 |
| 65+ and blind | $17,200 | $22,950 | $17,200 |
These figures are for full-year residents and do not cover every filing status or dependent situation. Part-year and nonresident rules are different.
Do not assume that having only retirement income means you do not need to file. Pension income, IRA or 401(k) withdrawals, wages, interest, dividends, capital gains, or rental income can create a filing duty. Delaware residents who paid income tax to another state on the same income may also have a credit issue to review.
Pensions and Retirement Income
For tax year 2026, Delaware’s main rule for a person age 60 or older is still a combined retirement-income subtraction of up to $12,500 per person, or the amount of eligible income if lower. Eligible retirement income can include pensions, qualified retirement-plan distributions, interest, dividends, capital gains, and net rental income from real property.
This is one combined bucket. It is not $12,500 for a pension plus another $12,500 for an IRA plus another amount for interest. If both spouses have eligible income, each person’s own limit is calculated separately.
Example
Maria is 68 and has $7,000 of pension income, $3,000 from an IRA, and $2,500 of eligible interest and dividends. Her combined eligible amount is $12,500. She does not get three separate $12,500 exclusions.
Important for 2027 planning: Delaware’s current tax code now phases in a higher exclusion for U.S. military pensions. For tax year 2027, the military-pension limit becomes $15,000. It becomes $20,000 for 2028 and $25,000 for 2029 and later. The new law also says people age 60 or older must meet a Delaware domicile period to use the retirement subtraction: at least three years if legally domiciled in Delaware before January 1, 2027, or five years if domicile begins on or after that date. Because 2027 filing instructions are not yet available, confirm the implementation when the Division of Revenue publishes them.
Veterans and military retirees can also use our Delaware veteran benefits guide for non-tax help.
Property-Tax Relief for Senior Homeowners
Delaware property-tax relief is layered. A homeowner may have a statewide school-tax credit, a county exemption, and a city or town program. One application does not automatically cover every layer.
The statewide Senior School Property Tax Relief program gives eligible homeowners age 65 or older a credit of 50% of regular school property tax, up to $500, on a primary residence. The state senior relief page lists an April 30 application deadline. It also says property taxes must be paid in full by the end of the tax year to qualify for the credit in the next property-tax year.
For people who established Delaware legal domicile on or after January 1, 2018, the state page still lists a 10-consecutive-year domicile rule. People who established domicile after December 31, 2012 but before January 1, 2018 generally have a three-year rule. Once approved, homeowners usually do not reapply each year unless a move or another change requires it. The state’s school-credit FAQ explains renewal and ownership situations.
For more detail on home-tax programs, see our Delaware property-tax guide.
| Area | 2026 rule to know | Action |
|---|---|---|
| Statewide school credit | Age 65+; 50% of regular school tax, up to $500; primary residence | Apply through the county by April 30 and confirm domicile rules. |
| New Castle County | County over-65 exemption can subtract up to $173,000 of assessed value; 2026 form uses a $65,000 income cap and $676,000 assessed-value cap | The June 1, 2026 deadline passed. Ask Assessment about the next cycle. |
| Kent County | Age 65+ by May 31; current page lists $18,000 single and $24,750 married income limits, plus residency and ownership rules | Annual application is due April 30 before the tax year. |
| Sussex County | Current over-65 form lists a $229,000 maximum assessed-value exemption and $6,000 single or $7,500 married income limits | Apply annually by April 30 and confirm current age-date wording with Finance. |
| Wilmington | Specific 2026 form lists a $210,300 maximum exemption; $15,000 single or $19,000 married income limits | If the full-year deadline was missed, ask about the form’s partial-year schedule. |
New Castle County’s official 2026 over-65 form also has a separate school-property exemption section with lower income limits. Do not confuse that county exemption with the statewide $500 school-tax credit.
Kent County’s tax credits page says the elderly or disability exemption is annual and includes a five-year Delaware residency rule and one-year principal-residence rule. Sussex County’s over-65 application lists the current income and exemption figures, but one age line still contains an older year. Call Sussex Finance before relying on that age-date line.
Wilmington’s general senior programs page and the specific 2026 application do not match on every deadline and income figure. For a 2026 claim, use the specific application and call City Revenue at 1-302-576-2620 to confirm the current cutoff before filing.
Renters and Housing Costs
Current Delaware tax pages focus senior property-tax relief on homeowners. The current official tax material reviewed for this update does not show a broad statewide senior renter tax rebate.
If rent, utilities, or housing stability is the real problem, a tax office may not be the best first stop. Use our Delaware housing help guide. If the problem is urgent, use Delaware emergency help. Delaware also lists emergency assistance for some low-income households through its emergency assistance program.
Free Tax Help in Delaware
The Internal Revenue Service’s Volunteer Income Tax Assistance (VITA) and Tax Counseling for the Elderly (TCE) programs provide free basic return preparation for qualifying taxpayers. TCE is designed for people age 60 or older and focuses on retirement-related questions. VITA generally serves people with lower to moderate incomes, people with disabilities, and taxpayers with limited English.
The IRS 2026 senior tax resources page says to use the VITA/TCE locator or call 1-800-906-9887. Volunteer sites are most available during filing season, and not every site can prepare complex returns.
For Delaware filing, the Division of Revenue offers online services and current-year forms through its online services page. If you need broader help choosing a route, our Delaware senior assistance guide can point you to other benefit and support programs.
What to Gather Before Filing or Calling
- Your completed federal return, or a draft if you are still preparing it.
- Last year’s federal and Delaware returns.
- Every Form 1099-R for pensions, annuities, IRA withdrawals, and 401(k) withdrawals.
- Form SSA-1099 for Social Security and any Railroad Retirement statement.
- Forms W-2, 1099-INT, 1099-DIV, 1099-B, or other income records.
- Your current property-tax bill, parcel number, and proof of home ownership.
- Delaware driver’s license or state ID if a property-tax program asks for it.
- The date you established legal domicile in Delaware.
- Income records required by your county or city property-tax application.
- Authorization paperwork if you are helping a parent discuss private tax information.
How to Start Without Wasting Time
- Separate the problem. Decide whether it is state income tax, estimated tax, property tax, rent, or another bill.
- Finish federal first. Delaware uses federal adjusted gross income as the starting point.
- Sort income types. Keep Social Security, pension, IRA, wages, interest, dividends, and gains separate.
- Check the filing threshold. Do not assume age alone removes the filing requirement.
- Check every property layer. State, county, city, and town relief can be separate.
- Call before mailing. Ask which year’s form is current and what proof is required.
Phone Scripts
Delaware Division of Revenue
“I am age 60 or older and have Social Security plus retirement income. Can you tell me which 2026 Delaware retirement subtraction rules apply and whether I need to make an estimated payment?”
County assessment office
“I am a senior homeowner. Which county and school-tax exemptions can I still use, what is the next deadline, and what income and residency proof do you need?”
Free tax-help site
“Do you prepare Delaware returns with pension, IRA, and 1099-R income? What documents should I bring, and is my return within your volunteer scope?”
City or town office
“I live inside city or town limits. Is there a senior property-tax or utility discount in addition to county and state relief?”
Reality Checks
- The $12,500 retirement subtraction is not automatic for every future year. Delaware changed the law in August 2026 for tax year 2027 and later.
- Property-tax help is not one program. A state credit, county exemption, and municipal exemption can have different rules.
- Deadlines are not uniform. April 30, June 1, October 2, and December 31 can all matter for different 2026 tax actions.
- Official pages can conflict. Wilmington’s general page and specific 2026 form show different figures. Use the year-specific form and confirm by phone.
- Volunteer tax sites have scope limits. Rental property, business income, complicated securities sales, or unusual retirement transactions may require another preparer.
Common Mistakes to Avoid
- Thinking Delaware taxes Social Security because another state does.
- Treating the $12,500 retirement subtraction as a separate limit for each account.
- Ignoring the new 2027 domicile rules when planning retirement income.
- Assuming one senior property-tax application covers every state, county, and city program.
- Missing a local deadline because the statewide deadline was different.
- Using an old income limit from a general webpage instead of the current-year form.
- Taking a large IRA withdrawal without checking Delaware withholding or estimated-tax needs.
- Looking only for a tax rebate when the real problem is rent, utilities, or emergency housing.
Denied, Delayed, or Overwhelmed
Ask for the reason in writing. If a property-tax exemption is denied, ask which eligibility rule failed and whether the office has a review or appeal process.
If a deadline passed, ask about the next period. Wilmington’s 2026 form lists partial-year exemption dates after its full-year deadline. Other programs may require waiting for the next tax year.
If disability changes what you can do, our Delaware disability help guide can connect you with related supports.
If the tax problem is part of a wider benefits problem, a local aging office may help organize the next step. Use our Delaware aging offices guide.
Local and Official Resources
- Delaware Division of Revenue: Public Service line 1-800-292-7826. The state lists Wilmington, Dover, and Georgetown contacts on its office locations page.
- New Castle County Assessment: 1-302-395-5520.
- Kent County Tax Office: 1-302-744-2341. Assessment: 1-302-744-2401.
- Sussex County: State senior credit contact 1-302-855-7871; the county over-65 form directs application questions to Finance at 1-302-855-7813.
- Wilmington Revenue: 1-302-576-2620 for the 2026 senior exemption application.
- IRS VITA/TCE: 1-800-906-9887.
Resumen en Español
Delaware no cobra impuesto estatal sobre los beneficios del Seguro Social ni Railroad Retirement. Para el año tributario 2026, muchas personas de 60 años o más pueden restar hasta $12,500 por persona de ciertos ingresos de jubilación.
La ayuda con impuestos sobre la propiedad depende del estado, el condado y la ciudad. El crédito estatal para impuestos escolares puede cubrir el 50% del impuesto escolar regular, hasta $500, para propietarios elegibles de 65 años o más. Hay reglas de residencia y fechas límite.
Una nueva ley firmada en agosto de 2026 cambia las reglas para 2027 y años posteriores, especialmente para pensiones militares y el tiempo de domicilio en Delaware. Si tiene una pensión o se mudó recientemente a Delaware, confirme las reglas antes de presentar la declaración de 2027.
Frequently Asked Questions
Does Delaware tax Social Security?
No. Delaware does not tax Social Security benefits or Railroad Retirement benefits. Other taxable income can still create a filing requirement.
What is Delaware’s retirement-income exclusion for 2026?
For tax year 2026, a person age 60 or older can generally subtract up to $12,500 of combined eligible pension and retirement income, or the eligible amount if it is lower.
Is the $12,500 limit separate for each account?
No. It is one combined limit per eligible person. Pension, qualified retirement-plan income, interest, dividends, capital gains, and net rental income can share the same limit.
What changes for retirement income in 2027?
Delaware’s new law raises the military-pension exclusion to $15,000 for tax year 2027 and adds Delaware domicile requirements for people age 60 or older using the retirement subtraction. Confirm the final filing instructions when Delaware publishes them.
How much is the senior school-tax credit?
Eligible Delaware homeowners age 65 or older can receive 50% of regular school property tax, up to $500, on a primary residence. Residency and application rules also apply.
What if I missed a property-tax deadline?
Call the county or city office and ask about the next application period. Wilmington’s specific 2026 form also lists partial-year exemption dates after its full-year deadline.
Can I get free tax preparation?
Often, yes. VITA and Tax Counseling for the Elderly offer free basic return preparation for qualifying taxpayers, and TCE focuses on people age 60 or older.
About This Guide
Sources: This guide uses official federal, state, local, and other high-trust nonprofit and community sources linked in the article.
Editorial note
This guide is produced under the GFS Editorial Standards using official and other high-trust sources. GFS is not affiliated with a government agency and is not a substitute for official agency guidance. Individual eligibility outcomes cannot be guaranteed.
Corrections
Despite careful verification, errors may occur. Readers may email info@grantsforseniors.org with corrections.
Disclaimer
This article is for informational purposes only and is not legal, financial, medical, tax, disability-rights, immigration, or government-agency advice. Program rules, policies, funding, and availability can change. Readers should confirm current details directly with the responsible official program before acting.
Last updated: 16 September 2026 · Next review: 16 January 2027
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