The $200,000 Florida Roth Conversion That New York Auditors Are Targeting
When a couple in their late sixties packed up four decades of life in Westchester County to buy a home near Naples, Florida, their financial strategy seemed straightforward. They intended to bypass state income taxes by converting $200,000 annually from traditional individual retirement accounts into Roth accounts. But a lingering attachment to their northern roots—specifically maintaining their Scarsdale home for grandchildren and returning for long summers, holidays, and medical visits—quickly caught the attention of tax authorities.
How New York State Keeps a Grip on Departing Taxpayers
Moving a driver’s license, registering to vote, and forwarding mail to the Sunshine State are easy errands. Breaking an economic and personal tether to New York is considerably harder. The New York State Department of Taxation and Finance evaluates residency through two distinct legal frameworks: domicile and statutory residency. Domicile is the one place someone considers a permanent home. Investigators carefully analyze property dimensions, the exact time spent within each jurisdiction, professional links, familial bonds, healthcare providers, personal belongings, and daily routines.
Even if a taxpayer successfully proves a shift in domicile, New York’s statutory residency rule can pull them right back in. Individuals can be classified as state residents if they keep a usable dwelling available in New York and log a minimum of 184 days there during the year. Crucially, any part of a day generally counts. A quick lunch in Manhattan before an evening flight can officially count as a New York day.
The Heavy Price of the Scarsdale Connection
Maintaining the longtime Scarsdale house as a year-round dwelling available to family can be enough to establish one side of the statutory-residency test. Once that threshold is met, the legal burden shifts to the taxpayer to prove they remained below 184 days. To defend against a residency audit, individuals must reconstruct their exact whereabouts using flight itineraries, toll records, credit card charges, medical appointment logs, calendars, and phone location data.
If auditors determine the couple crossed that 184-day threshold, the financial consequences compound. A failed residency change on a $200,000 conversion can generate a five-figure tax bill once other income is stacked on top. Multiply that oversight across multiple tax years, add interest and possible penalties, and the financial reason for moving disappears.
Federal Complications: Social Security and Medicare Surcharges
Escaping state tax authorities does not isolate retirees from federal adjustments. While neither New York nor Florida taxes Social Security benefits, large Roth conversions aggressively alter provisional income. A six-figure conversion can push up to 85% of a taxpayer’s Social Security benefits into taxable federal territory.
Medicare introduces yet another financial layer via the Income-Related Monthly Adjustment Amount (IRMAA). This surcharge calculates Part B and Part D premiums using modified adjusted gross income from two years prior. With the joint IRMAA threshold beginning above $218,000 under the 2026 schedule, a $200,000 conversion layered on top of pensions, dividends, or interest can cross the threshold quickly.
