Delaware Military Income & Retirement Tax Exemptions for Veterans

Under federal law codified at 26 U.S.C. Section 933, military service members on active duty can exclude certain combat zone income and military allowances from federal taxable income. Delaware honors this federal exclusion on state returns, meaning any income eligible for federal exclusion under Section 933 is also excluded from Delaware taxable income.

To qualify for the federal military income exclusion, you must have served on active duty in a designated combat zone during the tax year in question. Combat zones include Iraq, Afghanistan, and certain other areas designated by the Department of Defense. The exclusion applies to military basic pay, housing allowances (BAH), and subsistence allowances (BAS) earned during qualifying service periods.

Service members with a disability rating or Purple Heart recipients may also qualify for additional exclusions under federal law. The exclusion is not limited by discharge type—honorably discharged veterans, those with other-than-honorable discharges, and service-connected disabled veterans may all claim the exclusion for income earned during eligible service.

There are no income limits or asset thresholds for claiming the military income exclusion. Surviving spouses and dependents of service members who died on active duty may also claim the exclusion for military death gratuity and survivor benefit plan payments. The exclusion applies to all branches of service: Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard.

Delaware does not provide an additional state-specific military tax exemption beyond the federal military income exclusion framework. However, this is not a limitation—Delaware fully honors the federal exclusion under 26 U.S.C. Section 933, which means qualifying military pay is excluded from Delaware taxable income without additional state requirements or reduced benefit amounts.

Delaware's approach differs from some states that provide blanket military pension exclusions or retired military pay exemptions. Delaware does not offer a separate state pension exclusion for military retirees—instead, military retirement income is treated as ordinary income for Delaware tax purposes. However, Delaware does allow the federal combat zone pay exclusion to flow through to state returns.

The key advantage is that Delaware has no state income tax on military retirement pay beyond federal treatment. Veterans receiving military retirement pay file Delaware income tax returns and may claim the federal exclusion if applicable, but there is no additional Delaware layer of exemption.

Military service members who are Delaware residents should file both federal and state returns claiming the Section 933 exclusion. Delaware coordinates with federal law rather than creating redundant state provisions. This streamlined approach means you apply once on your federal return (Form 1040), and the exclusion flows directly to your Delaware return.

The most common reason for military income exclusion claims being denied is lack of proper documentation proving service in a designated combat zone during the tax year in question. The IRS and state tax authorities require Leave and Earnings Statements (LES) or military pay documents clearly showing the service member was in a combat zone on specific dates. If you submit a return claiming the exclusion without supporting military documentation, both federal and state auditors will deny the claim.

Another frequent denial reason is confusion about what income qualifies for exclusion. Some service members mistakenly try to exclude all military pay, including pay earned while stationed in non-combat zones. Only combat zone pay and related allowances (BAH and BAS earned during combat zone service) qualify. Base pay earned stateside does not qualify, and attempting to exclude non-qualifying income triggers denial and audit flags.

Incorrect designation of combat zones causes denials. The Department of Defense maintains an official list of designated combat zones—if a service member claims the exclusion for service in an area not on this list, the IRS will deny it. Always verify your duty station was in an officially designated combat zone using the DOD combat zone tax benefit website before claiming the exclusion.

Failure to properly claim the exclusion on federal Form 2555-EZ or complete Form 2555 Section II is another common reason for rejection. Many service members file Form 1040 without the required combat zone income form, forcing the IRS to deny the exclusion. Ensure Form 2555-EZ or 2555 is completed and attached to your federal return. When Delaware processes your return, discrepancies between federal and state exclusion amounts trigger additional scrutiny—keep your federal and Delaware returns synchronized.

If the IRS denies your federal military income exclusion claim, you have three appeal options under the Veterans Appeals Improvement and Modernization Act (VAIA) framework, though military tax exclusions follow standard tax appeal procedures rather than VA appeals processes.

First, file a Supplemental Claim (Form 990-X or amended return) within one year of the denial. This involves submitting additional military documentation, clarified Leave and Earnings Statements, or a detailed explanation of why your service qualifies as combat zone service. Supplemental claims work best when you have new evidence the IRS examiner didn't review—for example, if your first submission lacked clear LES copies showing combat zone dates.

Second, request Appeals consideration by filing Form 12203 (Letter of Protest) with the IRS Appeals Office within 30 days of receiving the denial letter. Appeals officers can reconsider the IRS examiner's decision, particularly if there are ambiguities about whether your duty station falls within an officially designated combat zone. This lane works well when the issue is legal interpretation of combat zone status rather than missing documentation.

Third, petition the U.S. Tax Court by filing Form 13909 within 90 days of an IRS Notice of Deficiency. Tax Court appeals are expensive and time-consuming but appropriate when substantial amounts of tax are at stake or the IRS has clearly misapplied military exclusion law. The American Legion, Disabled American Veterans (DAV), and Veterans of Foreign Wars (VFW) provide free representation before the IRS and Tax Court. Contact your county veterans service office for free assistance navigating IRS denials and appeals.