Excellent breakdown, Tina! As a CPA who’s recommended this strategy to dozens of clients, I can confirm: this is 100% legal when done correctly, but I’ve also seen too many clients mess it up.
The Client Horror Story
One of my S Corp clients was thrilled when I explained the Augusta Rule last year. They hosted quarterly strategic planning meetings at their lake house and charged $3,000/day (fair market rate for executive retreat venues in their area).
Everything was perfect through four quarters. Then in December, they got excited and decided to host a 2-day holiday client appreciation event at their home.
Result: They hit 16 days total for the year.
The entire $48,000 in rental income (16 days × $3,000) lost its tax-free status. They had to report all of it as rental income on Schedule E, could only deduct pro-rated rental expenses, and ended up owing an extra $14,000 in taxes they hadn’t budgeted for.
Lesson: The 14-day limit is absolute. There’s no grace period, no “oops, can we exclude those last two days?” Day 15 destroys the entire benefit for the whole year.
Business Structure Is Non-Negotiable
Tina nailed this, but I want to emphasize: you absolutely cannot use the Augusta Rule if you’re a sole proprietor or single-member LLC taxed as a disregarded entity.
I had a Schedule C client try to claim this. The IRS rejected it immediately with a simple explanation: “You cannot rent property to yourself.”
The business must be a separate legal entity:
- S Corporation ✓
- C Corporation ✓
- Partnership (multi-member LLC taxed as partnership) ✓
- Schedule C / Sole Proprietorship ✗
- Single-member LLC (taxed as disregarded entity) ✗
If you’re currently a sole prop and this strategy interests you, talk to your CPA about S Corp election. The Augusta Rule is just one of many tax benefits.
How to Calculate Fair Market Value (Step-by-Step)
This is where clients struggle most. You can’t just pick a number you like. The IRS expects comparable market research.
Here’s my recommended process:
Step 1: Identify Comparable Venues
Research what an unrelated third party would pay for similar space in your area:
- Hotel conference rooms (for meetings/events)
- Executive retreat centers
- Airbnb listings for “corporate retreat” or “executive rental”
- Coworking spaces with private event rooms
- Country clubs or golf clubs with event facilities
Step 2: Gather 3-5 Comparable Rates
Don’t cherry-pick the highest rates. Find genuinely comparable spaces:
- Similar square footage
- Similar amenities (kitchen, AV equipment, outdoor space, etc.)
- Same geographic area
- Same type of use (day rental vs overnight)
Step 3: Document Everything
Screenshot or save:
- Hotel pricing quotes
- Airbnb listing rates
- Venue rental websites
- Email quotes from event spaces
Store these with your tax documents. If audited, you’ll need to prove your pricing.
Step 4: Average and Apply
Take the average of your comparables. If you want to be conservative (and avoid audit risk), use the median or even the lower end of the range.
Example from my practice:
- Local hotel conference room: $1,200/day
- Executive Airbnb rental: $1,500/day
- Country club meeting room: $1,800/day
- Average: $1,500/day
Client charges $1,400/day (slightly below average = very defensible).
The Home Office Deduction Question
Bob asked a great question about whether the Augusta Rule conflicts with the home office deduction.
Good news: they’re separate and compatible.
- Home office deduction: You use a portion of your home regularly and exclusively for business. You deduct a percentage of mortgage interest, utilities, insurance, etc. based on square footage.
- Augusta Rule: You rent your entire home (or specific space) to your business for specific days for meetings, events, or retreats.
They don’t conflict. You can have both.
Example: You have a dedicated home office (150 sq ft of 1,500 sq ft home = 10% business use). You claim the home office deduction all year. Then you host a quarterly board meeting where you rent the entire house for the day. That’s an Augusta Rule rental—separate transaction.
Beancount Implementation: Automatic Day Counter
Tina’s metadata approach is solid. I’d take it one step further with a custom Beancount plugin that automatically counts Augusta Rule days and alerts you when you approach the limit.
Here’s the concept:
# augusta_counter.py - Custom Beancount plugin
# Counts transactions tagged #augusta-rule and warns at 12 days
def check_augusta_limit(entries, options_map):
augusta_entries = [e for e in entries if hasattr(e, 'tags') and 'augusta-rule' in e.tags]
if len(augusta_entries) >= 12:
print(f"⚠️ WARNING: {len(augusta_entries)} Augusta Rule days used (limit: 14)")
if len(augusta_entries) >= 14:
print(f"🚨 ALERT: You've reached the 14-day Augusta Rule limit!")
return entries, []
Load it in your Beancount file:
plugin "augusta_counter"
Now every time you run bean-check, you’ll get warned if you’re approaching the limit.
Questions Back to Tina
-
Multi-day events: If a client hosts a 2-day strategic planning retreat, does that count as 2 days or 1 event? (I believe it’s 2 days, but clients always ask.)
-
Overnight vs day rental: Does it matter if the “rental” is overnight (retreat participants stay over) vs day-only (meeting ends, everyone goes home)? Does that affect FMV calculation?
-
Retroactive rental agreements: I’ve had clients ask if they can create a rental agreement retroactively (they hosted meetings but didn’t document it upfront). What’s the IRS’s position on retroactive agreements for this?
Thanks for bringing this topic up—it’s one of the most powerful but underutilized strategies for home-based business owners!
Alice Thompson, CPA
Thompson & Associates CPA Firm | Chicago, IL