Material participation trackers: what decides an exam

By Max Medvedev · 6 Aug 2026

For hours alone on one or two properties, STRHours and REPSLog are the two purpose-built trackers, both around $149 a year. DeductFlow wraps an hours tracker in wider record-keeping. RentReel's hours module comes attached to books. Choose on four things courts actually weigh, not on feature counts.

The four things that decide it

Recent participation losses are evidence failures, not arithmetic ones. Four properties of a record show up again and again in the opinions.

Was it written when the work happened? Sezonov v. Commissioner, T.C. Memo 2022-40, is the short-term rental case that turned on this alone. The taxpayers kept nothing during the year and assembled the hours afterward; the court dismissed them as "ballpark guesstimates" and the participation claim failed. The full case is here. Live capture is the single highest-value feature in this category.

Does it record every other worker's hours, per person? The 100-hour test in Reg. §1.469-5T(a)(3) has two legs: more than 100 hours, and not less than any other single individual. Pohoski v. Commissioner, T.C. Memo 1998-17, split on exactly that — the same owner won one condo and lost the other depending on whether he could prove the management side's time. The comparison is per person, never a combined total: three vendors at 90 hours each lose to your 120; one cleaner at 150 beats it. So the tracker has to hold a per-person column for people who do not work for you at tax time.

Does evidence attach to the entry? An entry that points at a guest message, an invoice or a receipt can be tested. One that does not has to be believed or rejected as a block.

Can a CPA read the export? The log leaves the app eventually. Whether it arrives as a timestamped PDF, a share link or a CSV changes how much of your accountant's hour it consumes.

How the four tools line up

Prices and features checked on each vendor's own site on 6 August 2026. Confirm before buying — both move.

Reading that table

STRHours is the strongest on the first criterion, which is the one that matters most. Booking-platform sync with Airbnb, VRBO, Booking.com and iCal auto-captures guest communications, so a chunk of the evidence lands without anyone remembering to type. Voice logging removes the other excuse. It tracks spouse and third-party hours directly, and offers both the 100-hour and 500-hour threshold options. The free tier is $0 forever with no card — 5 hours on 1 property, enough to test the habit before paying. Its scope is hours tracking, not bookkeeping.

REPSLog is the stronger fit if your record needs to carry documents alongside hours, or if you are chasing the 750-hour real estate professional threshold across a portfolio rather than the 100-hour test on one rental. Document attachments, a live timer, multi-property across long-term and short-term rentals, multi-device sync, custom goals, import and export, and a ChatGPT plugin. Participant hour tracking is the feature most owners underuse and the one Pohoski says decides the case.

DeductFlow is not competing on hours alone. The 100-hour tracker sits beside expense categorisation, mileage with a business-use percentage, home office under the actual method, and cost-segregation documentation. Its own site is explicit that it is "a record-keeping tool only", not "a bookkeeping or Schedule E preparation tool", and that it "does not give tax advice" — clear scope, stated up front, which is more useful than a longer list. Pick it when the accountant wants organised documentation rather than a dedicated hours product.

RentReel's hours module implements the section 469 material participation tests and a 750-hour tracker, plus a reconstruction wizard for owners who arrive after the year has started — a real need, since the alternative for a past year is nothing at all. It is bundled with books, so it is not a like-for-like purchase against a $149 tracker. If you need both halves in one place, that bundling is the reason to buy it.

For anything where the per-person comparison is the deciding number, ask the vendor directly how another worker's hours get recorded before you rely on it. It is a narrow question, and the answer is worth having in writing.

Two free things to use alongside whichever you pick

Neither replaces a tracker; both are free and neither asks for an email.

• The material participation checker runs your hours against all seven tests in Reg. §1.469-5T(a), including the comparison against the highest other individual, so you know which threshold you are actually aiming at before you start logging toward the wrong one.
• The participation log template is a spreadsheet with the columns the case law asks for — date, activity, duration, who did it, and the evidence it points at. Useful as a specification for what a good entry contains, even if you log inside an app.
• The estimator models the whole year, so you can see whether the hours are even the binding constraint before paying for a tool to fix them.

Our own hours log and audit binder are not open yet. If you need one this season, buy one of the four above.

For how the shapes compare across the whole category, start at the software comparison hub.