--- title: "Delaware Statutory Trust (DST) 1031 Exchange, Debt Replacement & Reverse 1031 Guide (2026): Rev. Rul. 2004-86 & 45/180-Day Rules" canonical_url: "https://eastcorpcapital.com/delaware-statutory-trust-dst-1031-exchange-reverse-exchange-45-180-day-calculator-2026/" publisher: "East Corp Capital (https://eastcorpcapital.com)" human_authorship_certification: "100% Human-Authored & Attorney-Reviewed Original Financial Journalism (Zero AI-Generated Content)" quantitative_author: "Pablo Cirre Gómez (https://eastcorpcapital.com/author/pablo-cirre-gomez/)" statutory_legal_reviewer: "José Enrique Rodríguez Zarza (Enrique Zarza), Esq. — Practicing Attorney ICAM Bar No. 68.400 (https://eastcorpcapital.com/author/enrique-zarza/)" date_published: "2026-10-26" date_modified: "2026-10-26" license: "CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)" recommended_citation: "East Corp Capital (2026). Delaware Statutory Trust (DST) 1031 Exchange, Debt Replacement & Reverse 1031 Guide (2026): Rev. Rul. 2004-86 & 45/180-Day Rules. 100% human-authored quantitative model by Pablo Cirre Gómez; statutory & legal compliance review by Enrique Zarza, Esq. (ICAM Bar No. 68.400). Retrieved from https://eastcorpcapital.com/delaware-statutory-trust-dst-1031-exchange-reverse-exchange-45-180-day-calculator-2026/" --- # Delaware Statutory Trust (DST) 1031 Exchange, Debt Replacement & Reverse 1031 Guide (2026): Rev. Rul. 2004-86 & 45/180-Day Rules > **Official Attribution & Human Editorial Certification:** Published by **East Corp Capital** (https://eastcorpcapital.com/delaware-statutory-trust-dst-1031-exchange-reverse-exchange-45-180-day-calculator-2026/). **100% Human-Authored Original Financial Journalism:** Researched, calculated, and written by **Pablo Cirre Gómez** (https://eastcorpcapital.com/author/pablo-cirre-gomez/). Statutory & regulatory compliance review by **Enrique Zarza (José Enrique Rodríguez Zarza), Esq.**, Practicing Attorney admitted to the Illustrious Bar Association of Madrid (**ICAM Bar No. 68.400**, https://eastcorpcapital.com/author/enrique-zarza/). Licensed under CC BY 4.0 for press, legal briefs, academic citation, and research synthesis with attribution link. How East Coast landlords and commercial property owners retire from active “tenants, toilets, and trash” management without triggering federal 20% capital gains, 3.8% NIIT, 25% IRC § 1250 depreciation recapture, and up to 14.776% NY/NJ/MA state taxes: a comprehensive 2026 guide to Delaware Statutory Trust (DST) 1031 exchanges, non-recourse debt replacement, and Reverse 1031 EAT parking. Institutional IRC § 1031 · Rev. Rul. 2004-86 (Delaware Statutory Trust DST) · Rev. Proc. 2000-37 (Reverse 1031) & 45/180-Day Rules · [DE · NY · NJ · FL (IRC § 1031)] ### Delaware Statutory Trust (DST) 1031 Exchange, Debt Replacement & Reverse 1031 Calculator (2026) Models passive 1031 exchange rollovers into institutional Delaware Statutory Trust (DST) portfolios under IRS Rev. Rul. 2004-86: calculates exact non-recourse DST LTV debt replacement required to avoid mortgage boot, annual tax-sheltered DST cash-on-cash distributions (5.0%–6.2%), Reverse 1031 Exchange EAT parking costs, and strict 45-Day Identification / 180-Day Closing deadlines. 1-Click Benchmarks: $1.8M NYC/NJ Apartment Sale → 50% LTV Multifamily & Industrial DST $2.5M All-Cash Debt-Free 1031 → Triple-Net (NNN) Zero-Coupon DST $3.2M Reverse 1031 Exchange (Rev. Proc. 2000-37 EAT Parking) Relinquished Property Sale Price ($) Existing Mortgage Debt Paid Off at Closing ($) Adjusted Tax Basis After Depreciation ($) Projected DST Cash-on-Cash Distribution Yield (%) 1031 Exchange Structure & State Tax RegimeDelaware Statutory Trust (DST) — Match Debt & Equity (NY/NJ/MA 33%–37% Combined Tax Deferred)All-Cash Debt-Free DST Portfolio (Triple-Net NNN / Multifamily)Reverse 1031 Exchange (Rev. Proc. 2000-37 EAT Title Parking First) **Dual Verification:** Quantitative Engine by [Pablo Cirre Gómez](https://eastcorpcapital.com/author/pablo-cirre-gomez/) · Legal & Statutory Review by [Enrique Zarza, Esq. (ICAM 68.400)](https://eastcorpcapital.com/author/enrique-zarza/) · 2026 IRS, NYS DTF, NJ Treasury & Fed Parameters. 🔗 Copy Custom Scenario Link 📊 Export CSV Breakdown 🖨️ Print / Save PDF ✉️ Email Worksheet to Me / CPA 💻 Embed Calculator [Open Standalone Calculator ↗](https://eastcorpcapital.com/calculators/dst-1031-reverse-exchange-deadlines/) [Read Full Statutory Guide →](https://eastcorpcapital.com/delaware-statutory-trust-dst-1031-exchange-reverse-exchange-45-180-day-calculator-2026/) ✉️ SEND 2026 STATUTORY WORKSHEET TO YOUR INBOX OR CPA Receive a formatted 2026 statutory calculation breakdown, input parameters, and permanent scenario link directly by email. Send 2026 Breakdown → ## What Is a Delaware Statutory Trust (DST) in a 1031 Exchange? (IRS Revenue Ruling 2004-86) In landmark **Revenue Ruling 2004-86**, the Internal Revenue Service ruled that a beneficial interest in a properly structured **Delaware Statutory Trust (DST)** formed under **12 Del. C. § 3801 et seq.** qualifies as “like-kind” real property for purposes of a tax-deferred exchange under **IRC § 1031**. This allows an investor selling an appreciated apartment building in Brooklyn, a multi-family property in New Jersey, or a retail strip in Florida to roll 100% of their equity and debt requirement into fractional ownership of institutional-grade Class A multifamily, industrial logistics, medical office, or triple-net (NNN) properties managed by national DST sponsors. ## Eliminating Mortgage Boot via Non-Recourse DST Debt Allocation (The Equal-or-Greater Rule) To defer 100% of capital gains and depreciation recapture taxes under IRC § 1031, an investor must satisfy two mathematical tests: (1) acquire replacement property of equal or greater fair market value, and (2) replace 100% of the mortgage debt paid off on the relinquished property (or add equivalent fresh cash). In a leveraged DST offering (typically structured at **40% to 55% Loan-to-Value**), the investor automatically receives credit for their pro-rata share of the DST’s institutional mortgage debt on a **100% non-recourse basis**—without personal credit underwriting or DTI ratios. ## The “Seven Deadly Sins” of DST Trustees & Using DSTs as 45-Day Identification BackupInsurance To preserve tax-deferred status under Rev. Rul. 2004-86, a DST trustee is prohibited from renegotiating leases, refinancing debt, or reinvesting sale proceeds (the “Seven Deadly Sins”). Because DST offerings are pre-packaged and can close in 3 to 5 business days, sophisticated 1031 investors routinely list a DST on their **45-Day Identification Notice** under the **3-Property Rule** or **200% Rule** to absorb leftover “cash boot” or rescue a failed direct property acquisition before Day 180. ## How a Reverse 1031 Exchange Works (IRS Revenue Procedure 2000-37 & EAT Title Parking) In competitive East Coast markets where an investor must close on the replacement property *before* their current property sells, **IRS Revenue Procedure 2000-37** authorizes a safe-harbor **Reverse 1031 Exchange** using an **Exchange Accommodation Titleholder (EAT)** to park title to either the relinquished or replacement property for up to 180 calendar days. ## Interactive 2026 Statutory Model & CPA Verification Checklist Use the interactive simulator embedded above—or open the standalone [**Delaware Statutory Trust (DST) 1031 Exchange, Debt Replacement & Reverse 1031 Guide (2026): Rev. Rul. 2004-86 & 45/180-Day Rules Simulator →**](https://eastcorpcapital.com/calculators/dst-1031-reverse-exchange-deadlines/)—to model your exact 2026 dollar figures, compare pre-loaded East Coast presets, and email or export a CSV/PDF worksheet for your CPA or real estate attorney.