Form 3115 and the §481(a) Adjustment: The Complete Guide to Catch-Up Depreciation for Rental Owners (2026)

· 14 min read · Core Tax Strategy

The authoritative guide to recovering years of missed depreciation on rental property. How Form 3115 and the §481(a) adjustment work, DCN 7 automatic consent, bonus rate at placed-in-service, the STR loophole combo, filing logistics, and audit-defense posture.

What This Article Covers

This guide focuses on form 3115 and the §481(a) adjustment: the complete guide to catch-up depreciation for rental owners (2026) and explains how the strategy applies to real estate investors evaluating accelerated depreciation opportunities.

  • Actionable tax planning context for core tax strategy investors
  • Frameworks and decision points that affect first-year deductions
  • How this topic connects to engineering-based cost segregation execution

Who Should Read This

This article is written for property owners, sponsors, and tax-aware investors who want practical guidance they can discuss with a CPA before filing.

Estimated length: approximately 3,080 words (14 min read).

Why This Matters in Practice

Depreciation strategy is rarely one-size-fits-all. The details covered in this article help you evaluate timing, reporting posture, and documentation quality so your filing position is both tax-efficient and defensible under audit.

For a full implementation review, compare this topic with related guides and then request a property-specific estimate.

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