Free owner tool

Average stay / 7-day rule calculator

Estimate your average period of customer use — the first half of the common short-term rental non-passive path under Treas. Reg. §1.469-1T(e)(3). Add each booking's nights; we divide total days by number of stays.

Educational estimate only — not tax, legal, or financial advice. How your platform counts nights vs calendar days can matter; confirm with a CPA. Entries stay in this browser until you export or clear them.

CPA pack labels

Property / activity labelTax year context

These labels print on the CPA handoff pack only — they do not change the average-stay math.

Result

Stays: 0
Total days: 0
Average days: —

Add at least one stay to calculate average customer use.

≤ 7 days — usual first half of the STR path
≤ 30 days — different exception; significant services may matter
> 30 days — typically longer-term rental treatment

Average = total days of customer use ÷ number of stays (periods of use). Meeting ≤ 7 days does not by itself make losses non-passive — you still need material participation.

Add a stay

Stays

No stays yet. Add one, paste a list, or load the sample.

Paste stays

One stay per line: 3, 5,Weekend, or 2026-01-01,2026-01-04,NYE (check-out exclusive).

For CPAs & publishers

CPAs and publishers can embed the chrome-free tool, or owners can download a CPA handoff pack to email with their return docs.

Embed on your site

Free iframe for CPA blogs, newsletters, and owner resources. No login required.

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  src="https://tallyroost.com/tools/average-stay-7-day/embed"
  title="Average Stay / 7-Day Rule Calculator — TallyRoost"
  width="100%"
  height="900"
  style="border:0;border-radius:12px;max-width:960px"
  loading="lazy"
></iframe>

CPA handoff pack

Includes summary, CPA checklist, disclaimer, and stay CSV — ready to email.