New Jersey’s near-4% property tax rate versus Pennsylvania’s 2% costs the Ewing couple roughly $7,350 more annually on a comparable $500,000 home.
Combined state taxes, property taxes, and a 12% higher cost of living leave the New Jersey couple roughly $10,000 less in spendable income each year.
At 7% reinvested returns, that $10,000 annual gap compounds to roughly $138,000 over 10 years and $410,000 over 20 years.
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Two couples crossed the same retirement starting line. Each ended a long career, locked in a $1 million dividend portfolio, and budgeted around $60,000 a year in portfolio income. Both signed up for Medicare. Both planned to spend at roughly the same pace. The only meaningful choice they made differently was the ZIP code on their mailbox.
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Couple A moved to Yardley, Pennsylvania. Couple B settled in Ewing Township, New Jersey, less than 10 miles away. They cross the river to see each other for dinner. They shop in many of the same stores, eat in the same restaurants. They watch the same weather forecast. Yet year after year, one household enjoys noticeably greater spending power from the same dividend check than the other.
Where the Spreadsheets are About the Same
Federal taxes are straightforward. With qualified dividends and the 2026 standard deduction of $32,200 for married couples filing jointly, both couples land inside the 0% long-term capital gains and qualified dividend bracket. Neither owes federal income tax on the portfolio. Both also remain comfortably below current IRMAA thresholds and pay the standard Medicare Part B premium. Healthcare costs therefore do little to separate the two households. The meaningful differences emerge from taxes, property costs, and the overall cost of living.
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State income taxes are less decisive than many retirees assume. Pennsylvania applies its flat 3.07% income tax to dividends and interest, while New Jersey uses a graduated system that may produce a somewhat lower bill at this income level. The difference amounts to hundreds of dollars per year, not thousands. The much larger retirement cost gap emerges from property taxes and overall cost of living rather than state income taxes alone.
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Where They Diverge
Property taxes create the largest financial separation between the two households. While exact bills depend on assessments and exemptions, a retiree owning a roughly $500,000 home could easily face a property-tax bill that is $5,000 to $8,000 higher in Ewing than in Yardley. That single line item consumes a meaningful share of the couple’s annual dividend income before they buy a gallon of gas or a bag of groceries.
The final layer is the cost of living. New Jersey’s regional price parity index sits above Pennsylvania’s, meaning the same basket of goods generally costs more across the river. Even excluding housing to avoid double counting, the Ewing couple could spend another $2,000 to $4,000 more each year on insurance, groceries, services, transportation, and other routine expenses.
Ten Miles. Thousands of Dollars.
Combined, the New Jersey household is roughly $10,000 a year behind on spendable income. Same portfolio. Same dividend yield. Same Medicare card. A drive of less than 10 miles. The driver is a property line inside the state ranked 49th out of 50 on the 2025 State Tax Competitiveness Index rather than the one ranked 34th.
A Loss That Compounds to Hundreds of Thousands
Money paid to taxes and higher prices is gone twice: once when it leaves the account, and again because it never compounds. Reinvested at a return modestly above the roughly 4.5% 10-year Treasury yield, say 7%, that $10,000 annual gap grows to about $138,000 over 10 years and roughly $410,000 over 20. The simple cumulative gap is still $100,000 at year 10 and $200,000 at year 20, more than half of the original house in either town.
Inflation affects both households, but the impact is greater where everyday costs are already higher. Over time, retirees living in more expensive areas need larger income increases simply to maintain the same standard of living.
Why They Stayed Anyway
Spreadsheets do not capture grandchildren two towns over, a cardiologist on speed dial, a synagogue, a bocce league, or the house a couple raised three kids in. Plenty of retirees look at the same math and stay in a more expensive town on purpose. Family proximity, established healthcare, walkable neighborhoods, and the cost and stress of moving are real variables that do not show up in a financial model. The point is not that one choice is right and the other is wrong. It is that retirees should understand the financial tradeoffs they are making and decide whether the benefits are worth the cost.
Three Things to Do This Week
Pull last year’s actual spending, not your salary, and divide by your portfolio yield to see how much capital you really need to replace it.
Run your state and county property tax rate against your home’s current market value, then repeat for any town you have considered retiring to.
If a move is on the table, model the 20-year compounded gap at 7%, not the annual number, because that is what is actually being decided.
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