Retiring in Delaware vs. Pennsylvania: Where the Taxes Actually Differ

Henry Supinski, ChFC® · 5 min read · July 2026

Twenty minutes of driving separates two very different tax regimes, and choosing between retiring in Delaware vs Pennsylvania is a real decision with real money attached. Pennsylvania generally exempts qualifying retirement income from state income tax entirely. Delaware takes a different approach, combining no sales tax, relatively low property taxes, and no estate or inheritance tax. Here is how to think about which side of the line fits your retirement.

Two Very Different Deals

Pennsylvania and Delaware sit twenty minutes apart and take nearly opposite approaches to taxing retirees. Neither is simply "better." Each state wins decisively for certain income and estate profiles, and the families who get it right are the ones who ran their own numbers instead of borrowing a neighbor's conclusion.

Where Pennsylvania Wins: Retirement Income

Pennsylvania retirement taxes are among the friendliest in the country. The state generally exempts qualifying retirement income from state income tax, making it one of the most retirement-friendly states for IRA, 401(k), pension, and Social Security income. The key word is qualifying: distributions generally need to meet Pennsylvania's retirement requirements, and early withdrawals can be treated differently. If most of your retirement will be funded by a large traditional IRA or pension, Pennsylvania's deal is hard to beat: a couple drawing $150,000 a year of qualifying withdrawals from retirement accounts generally pays state income tax of zero.

Where Delaware Wins: Everything Else

Delaware retirement taxes work differently. There is no sales tax, so purchases that would be taxed in Pennsylvania cost up to 6% less across the line. Property taxes are generally among the lowest in the country. Social Security is exempt, and residents age 60 or older may exclude up to $12,500 per person of eligible pension and retirement income, subject to Delaware's rules. Most importantly for many families: Delaware has no estate or inheritance tax of any kind.

Side by Side

The Pennsylvania Inheritance Tax Nobody Plans For

The Pennsylvania inheritance tax is the sleeper issue in this comparison. It applies from the first dollar, not from some multimillion exemption: 4.5% on transfers to children and grandchildren, 12% to siblings, 15% to most everyone else. Spouses and charities are exempt. On a $2 million estate passing to children, that is $90,000 that Delaware residents simply do not pay (assuming the assets are subject to Pennsylvania inheritance tax; not every asset is treated identically). For families whose priority is what reaches the next generation, this single line item can outweigh years of income tax differences. It also interacts with how your accounts are titled and who your beneficiaries are, which is exactly where uncoordinated plans leak.

The Break-Even Depends on Your Income Mix

A rough map: heavy traditional IRA or pension income favors Pennsylvania while you are alive. Heavy spending, taxable investment income, or a significant estate passing to children favors Delaware. For many higher-income workers, Pennsylvania's flat 3.07% income tax can result in substantially lower state income taxes than Delaware's graduated system, which reaches a top marginal rate of 6.6%. For some families who already expect to move, the timing of a relocation can affect lifetime taxes; the appropriate strategy depends on your income sources, estate goals, and long-term plans. The honest answer requires modeling your actual accounts, spending, and heirs, not a listicle.

Domicile Is a Fact Pattern, Not a Checkbox

If you keep homes in both states, the state you leave will care where you actually live: day counts, driver's license, voter registration, doctors, and where the things you would not leave behind are kept. A sloppy domicile change invites a residency audit that can unwind the whole strategy. Change it properly or not at all; we wrote a step-by-step domicile checklist for exactly this move.

Run the Numbers Before You Move

We sit on both sides of this line every week, with clients in Chadds Ford and Kennett Square on the Pennsylvania side and Wilmington, Hockessin, and Greenville in Delaware. Modeling the two states side by side against your actual plan is a standard part of our process. For a quick first pass, try our PA vs. DE break-even calculator on the Retirement Hub.

Questions We Hear

Is Pennsylvania or Delaware more tax-friendly for retirees?

Both states are among the more tax-friendly places to retire, which is what makes the choice hard. Pennsylvania generally exempts qualifying retirement income from state income tax. Delaware has no sales tax, generally low property taxes, and no estate or inheritance tax. Heavy IRA and pension income tends to favor Pennsylvania while you are alive. Heavy spending, taxable investment income, or a significant estate passing to children tends to favor Delaware. The answer comes from your numbers, not a ranking.

Does Pennsylvania tax retirement income?

Generally no, once the income qualifies. Social Security is not taxed, and qualifying withdrawals from IRAs, 401(k)s, and pensions are generally exempt from Pennsylvania income tax. The word qualifying carries weight: distributions generally need to meet Pennsylvania's retirement requirements, and early withdrawals can be treated differently. For most retirees drawing from retirement accounts after a normal retirement, the state income tax on that income is zero.

What about inheritance and estate taxes in each state?

This is the sharpest difference. Pennsylvania has an inheritance tax that applies from the first dollar: 4.5% on transfers to children and grandchildren, 12% to siblings, 15% to most others, with spouses and charities exempt. Delaware has no estate or inheritance tax of any kind. Neither state has an estate tax. If your priority is what reaches the next generation, this single line item can outweigh years of income tax differences.

Are property taxes lower in Delaware?

Generally yes. Delaware property taxes are generally among the lowest in the country. Pennsylvania property taxes are moderate on average but vary widely by county and school district, and the school district portion is often the largest piece. Property tax differences are real, but they depend on the specific homes you are comparing, so price them house by house rather than state by state.