City guide

Cost segregation in Westchester County, NY.

Westchester corporate HQ workers (IBM Armonk, Mastercard Purchase, PepsiCo, Regeneron Tarrytown) and NYC commuters face NY's ~47.5% combined bracket without NYC city tax.

· Cost Seg Smart editorial

Markets we cover: White PlainsTarrytownArmonkPurchaseHarrisonRyeChappaquaScarsdale
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Illustrative scenario — Westchester County, NY (Catskills / Berkshires STR (purchased by Westchester IBM senior executive))
Purchase price
$825,000
Reclassified
$187,000
Year-1 savings
$89,000
ROI on study
112x
Accelerated depreciation by MACRS class
$187,000 total reclassified into shorter recovery periods
5-yr personal property $75,000
40%
7-yr property $28,000
15%
15-yr land improvements $84,000
45%
Estimated Year-1 federal tax savings $89,000
Illustrative estimate based on typical Westchester County, NY cost segregation outcomes. Final allocations vary based on property facts and report findings.

If you live in Westchester County, you escape NYC’s 3.876% city wage tax and pay only federal 37% + NIIT 3.8% + New York State 6.85% = ~47.5% combined at the top bracket. Westchester’s investor pool combines NYC-commuter finance/medicine with a unique concentration of Fortune 500 corporate HQs that aren’t in NYC — IBM, Mastercard, PepsiCo, Regeneron all headquartered in Westchester.

  • $187,000 Accelerated Depreciation (typical STR worked example)
  • $89,000 Est. Year-1 Tax Savings (federal + NIIT + NY)
  • 112x Return on Study Cost

Want a number for your specific situation? Use the calculator — preset for property-type defaults you can adjust to your basis and bracket.

The Westchester investor profile

Westchester County’s investor pool combines two distinct cohorts:

  • Fortune 500 corporate HQ workforce — IBM HQ Armonk (senior tech and executive workforce, plus IBM Research Watson, Yorktown Heights), Mastercard HQ Purchase (technology and product leadership), PepsiCo HQ Purchase, Regeneron Pharmaceuticals HQ Tarrytown (one of the largest biotech employers in the U.S. by market cap), MBIA Armonk, Hitachi Tarrytown. Senior executives and senior engineering earn $400K–$2M+ with significant stock-based comp.
  • NYC commuters — Senior finance MDs, BigLaw partners, attending physicians who chose Westchester for the school districts (Scarsdale, Chappaqua, Rye, Bronxville) and commute to NYC. Same federal + state stack as Manhattan residents but without NYC city wage tax — a 3.876 percentage-point savings. Senior comp $500K–$3M+.

The combined marginal-rate stack:

  • Federal: 37%
  • NIIT: 3.8%
  • New York State: 6.85% (top rate)
  • No NYC city tax — Westchester residents are not subject to NYC city wage tax
  • Combined: ~47.5%

The 3.876 percentage-point savings on NYC city tax is the structural reason most NYC-commuter senior executives live in Westchester rather than Manhattan. Cost-seg’s per-dollar value reflects this: ~$0.475 saved per accelerated dollar for Westchester residents vs ~$0.515 for Manhattan residents — but Westchester’s COL advantages (housing, taxes) tend to compound favorably.

Verify with your CPA — combined-rate math depends on filing status, AGI thresholds for NIIT, and the actual NY/NYC brackets your income lands in.

Why cost seg pays more if you live in Westchester

A typical $600K–$1.5M out-of-state STR reclassifies 24–32% of basis under permanent 100% bonus depreciation. At Westchester’s combined bracket (~47.5%), every $1 of accelerated depreciation is worth ~$0.475 in Year-1 cash savings.

The Westchester structural advantage: stock-vesting timing. IBM, Mastercard, PepsiCo, and Regeneron all use multi-year vesting schedules that generate concentrated taxable income spikes. A $187K Year-1 cost-seg deduction generates ~$89K in combined federal + NY state tax savings — well-aligned with a typical $200K–$500K vesting event.

Where Westchester investors are buying

Westchester investors flow capital to STR markets within a 2-3 hour drive or short flight:

  • The Catskills + Hudson Valley — Closest accessible STR, 1.5-2 hour drive. Local zoning tightening; underwrite carefully.
  • The Berkshires, MA — Cultural + weekend STR, 2-hour drive.
  • The Hamptons + Long Island — Premium summer STR.
  • Vermont (Stowe, Killington, Manchester) — Mountain STR, 4-hour drive.
  • 30A / Destin, FL — Florida 0% state tax, premium beachfront, direct LGA/JFK flights.
  • Outer Banks, NC — Atlantic coastal STR.

A real Westchester investor’s worked example

An IBM Armonk senior VP earning $625K base + $400K RSU vesting + $150K performance bonus, residing in Chappaqua (Westchester County), buys a 4BR Catskills mountain estate for $825K with $30K immediate FF&E. After $200K in land, the $625K adjusted basis includes $75K in 5-year assets (hot tub, smart-home, theater system, kitchen package, decorative lighting), $28K in 7-year assets (custom furniture, themed bunk-room build-outs), and $84K in 15-year property (gravel drive, deck, retaining walls, fencing, outdoor lighting).

That’s $187K reclassified into accelerated depreciation in Year 1. At the Westchester combined bracket (~47.5%), federal + state savings come to roughly $89,000 — about 112x the cost of the study. The deduction can be timed against the $400K RSU vesting event for concentrated offset.

What disqualifies a Westchester investor

REPS is structurally impossible for a full-time IBM senior VP, Mastercard senior product lead, Regeneron senior research scientist, or NYC-commuting BigLaw partner. the STR exception (Reg. §1.469-1T(e)(3)(ii), 7-day average + 100-hour material participation) is the path.

For Westchester investors buying in the Catskills or Berkshires, the 1.5-3 hour drive makes the 100-hour material participation test particularly feasible through monthly on-site visits plus active remote management.

Your numbers, your bracket

Investors like you save ~$89,000 in Year-1 tax.

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