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Tax Day 2026 — The STR Owner's Filing Checklist We Wish Every Client Saw in January

Published April 14, 2026Read time 4 min
Tax Day 2026 — The STR Owner's Filing Checklist We Wish Every Client Saw in January
The GnG Vacation Take
We're not your CPA — but our monthly reports are built so your CPA can close your books in a morning, not a weekend. If your current manager's reports take you or your accountant more than two hours to reconcile, that's a real tax on your margin.

Tax Day is today. If you're an STR owner and haven't filed, you still have hours. Here's what a smart filing actually looks like.

The five-item checklist

  1. Material participation test. If you averaged more than 100 hours and more participation than anyone else in 2025, you may qualify for non-passive treatment of losses.
  2. Cost segregation study. Properties placed in service in 2025 still qualify for accelerated depreciation through a cost-seg.
  3. Short-term rental loophole. If your average guest stay was ≤7 days and you materially participated, STR losses can offset W2 income.
  4. Occupancy tax (TOT) reconciliation. Make sure your platform remittances match what the city has on record. Mismatches create audit exposure.
  5. 1099 reconciliation. Airbnb, Vrbo, and Booking.com 1099s rarely match your actual deposits. Reconcile before filing.

What most hosts miss

The STR loophole alone can shelter $30K-$80K of other income for active hosts. If your CPA doesn't know the term "material participation for STR," find a new CPA before next year.

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Every article here is a by-product of the work our team does every day in Southern California. Bring us your property and we'll show you what it could be earning.