Suffolk County, NY Metro · New York County Underwriting Brief

Suffolk County, NY DSCR Property Tax, Windstorm & Transfer Tax Guide

In Suffolk County, New York (Suffolk County, NY metro), 1–4 unit investment properties carry an average effective property tax rate of 2.08% and landlord hazard insurance averaging $760 per $100K of coverage. At a median 1–4 unit acquisition price of $625,000 and Form 1007 market rent of $4,450/mo, a 75% LTV DSCR loan models at 0.98x DSCR ($4,519/mo total PITIA).

Effective Property Tax
2.08%
Est. $1,083/mo at median
Landlord Ins / $100K
$760/yr
Est. $396/mo DP-3
Median 1–4 Unit Price
$625,000
75% LTV: $468,750
Modeled 75% LTV DSCR
0.98x
$4,450 rent / $4,519 PITIA

Suffolk County Escrow & Closing-Cost Underwriting Rules

1. Post-Acquisition Tax Reassessment

Statutory county assessor periodic revaluation; underwriters use post-acquisition projected tax bill (typically 85%–100% of purchase price × county millage rate).

2. Windstorm, Flood & Hazard Tier

Long Island Coastal Wind + NY CEMA Eligible

3. Transfer & Mortgage Recording Taxes

NY Mortgage Recording Tax (1.80%–2.80% depending on county and loan size) — eligible for 40%–70% reduction via NY CEMA (Consolidation, Extension, and Modification Agreement) on refinances.

4. CEMA / Doc-Stamp Optimization Strategy

Request CEMA assignment from existing lender to save $8,000–$22,000+ in NY mortgage recording tax.

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Suffolk County, NY DSCR Underwriting, Property Tax & Insurance Guide (2026) | Stephen R. Mannenbach | Stephen Mannenbach