Pennsylvania or Delaware: Where Should You Retire?
Henry Supinski, ChFC® · 5 min read · July 2026
Twenty minutes of driving separates two completely different tax regimes. Pennsylvania barely taxes retirement income. Delaware barely taxes anything else. 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 is one of the very few states that exempts essentially all retirement income. Social Security, 401(k) and IRA withdrawals after retirement age, and pension payments are all free of state income tax. 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 from retirement accounts pays state income tax of zero.
Where Delaware Wins: Everything Else
Delaware has no sales tax, so every purchase costs 6% less than across the line. Property taxes run meaningfully lower. Social Security is exempt, and residents 60 and older exclude up to $12,500 per person of retirement income. Most importantly for many families: Delaware has no estate or inheritance tax of any kind.
The Inheritance Tax Nobody Plans For
Pennsylvania's 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. 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. High earners still working favor Pennsylvania's flat 3.07% over Delaware's 6.6% top rate. Retirees who plan to relocate anyway can even sequence it: work years in one state, retirement in the other. 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.
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.