New York Estate Tax Planning New York Estate Tax Planning

New York Estate Tax Planning

New York Estate Tax — Planning

Last updated: 23 Oct 2025 • Author: Alexander Foelsche CPA (US), WP (DE), RE (CH)

New York Estate Tax — Planning

A practitioner’s guide to New York estate tax planning under Tax Law Article 26: aligning federal techniques with NY rules, handling domicile/situs, modeling the basic exclusion amount (BEA) and the NY “cliff”, using NY-only QTIP where appropriate, navigating gift addback timing, and managing valuation/liquidity. NY Art. 26 • ET-706 • ET-133 • ET-117

At a glance. NY starts from federal Form 706 concepts and overlays state mechanics: BEA, year-dependent gift addback, no state portability, potential NY-only QTIP, and the well-known cliff around the BEA. Return and payment are generally due 9 months after death; use ET-133 for filing/payment relief (payment relief requires undue hardship). A lien release (ET-117) is often required for real property/co-ops.

Planning objectives

Core goals

  • Preserve/optimize the BEA and avoid the cliff where feasible.
  • Deploy NY-only QTIP or coordinated marital planning to defer/reduce NY tax.
  • Manage gift addback exposure (look-back window depends on year of death).
  • Control situs for nonresident exposures; maintain clear domicile facts.
  • Secure liquidity for the 9-month payment; line up ET-133 and any hardship relief early.

Who this is for

  • NY residents near/over the BEA or with cliff risk.
  • Nonresidents with NY-situs real/tangible property (incl. co-ops).
  • Executors and planners coordinating federal and NY filings (ET-706).

Domicile & situs

Domicile (resident estates)

  • Document intent and objective ties (home, voter reg., licenses, business/family/medical ties).
  • Keep consistency across filings and records over multiple years.

Situs (nonresident estates)

  • NY taxes only NY-situs real/tangible property for nonresidents; most intangibles follow domicile absent a NY business situs.
  • Co-op shares are typically intangibles, but transfers usually require ET-117.

BEA & the NY “cliff”

Why it matters

If the NY taxable estate edges just above the BEA, the cliff can cause tax on nearly the entire amount, not just the excess.

  • Stress-test values with appraisals and alternate dispositions (charitable/marital).
  • Consider disclaimers/timing for bequests to stay within BEA where appropriate.

Planner checklist

  • Model with/without gift addback and with different valuation scenarios.
  • Use our calculator for order-of-magnitude estimates.
  • Document rationale for elections; keep worksheets with ET-706.

Marital strategies & NY-only QTIP

Conformity points

  • NY recognizes QTIP concepts but has its own election mechanics on ET-706.
  • Portability: NY does not offer state portability; federal portability remains a federal election only.

Design tips

  • When no federal 706 is required, a NY-only QTIP election may still defer NY tax—include a compliant election statement and ensure trust income requirements are met.
  • Coordinate marital formula clauses (e.g., Clayton/QTIP switches) with the BEA/cliff model.

Gift addback timing

Look-back window

For certain death years, NY requires adding back specified taxable gifts made within a 3-year window (statutory exceptions apply).

  • Audit gift history early; retrieve Forms 709 and workpapers.
  • Evaluate pre-mortem planning (charitable, marital) to mitigate addback effects.

Interaction with cliff

  • Addback can push the estate over the BEA and trigger the cliff.
  • Scenario-plan with and without addback to avoid unintended tax spikes.

Valuations, liquidity & timing

Valuation

  • Engage qualified NY appraisers for real property and high-value tangibles.
  • Align federal schedules (706/712) with NY attachments; reconcile any differences.

Liquidity & extensions

  • Payment and return due at 9 months; interest accrues thereafter.
  • ET-133: request filing extension (typically up to 6 months) and, if needed, payment relief for undue hardship (may run up to 4 years; interest applies).
  • Coordinate any federal §6166/§6161 relief with NY payment planning.
  • Prepare ET-117 early if property/co-ops must be transferred or sold.

Planning checklists

Design & documents

  • Will/Revocable Trust with marital/QTIP options (consider NY-only QTIP).
  • Gift files (709s), beneficiary designations, entity documents.
  • Appraisals and NY-specific evidence (co-op documents, deeds, custody/location records).

Execution & filings

  • Prepare ET-706 with federal schedules (or pro-forma schedules if no federal filing).
  • Model BEA/cliff and gift addback; capture election statements (QTIP) in the filing package.
  • Plan cash needs for the 9-month date; submit ET-133 if needed; line up ET-117 for property/co-ops.

FAQs

Hat New York Portability?

Nein. Es gibt keine staatliche Portability. Bundes-Portability bleibt ausschließlich eine federal election.

Kann ich ein NY-QTIP wählen, ohne eine Bundeserklärung abzugeben?

Ja, häufig möglich. NY erlaubt NY-only QTIP auf ET-706; eine saubere Election-Erklärung und QTIP-konforme Treuhandbedingungen sind nötig.

Mehr Ressourcen: Forms & Deadlines · Nonresident Guide · Cases · Calculator

References

  1. NY Tax Law Article 26 — BEA, addback, QTIP mechanics, nonresident situs.
  2. NY Department of Taxation & Finance — ET-706 (estate) instructions; ET-133 (extension to file/pay); ET-117 (release of lien).
  3. IRS Form 706/706-NA & Instructions — federal base, valuation, marital/QTIP, §6166 references.