A $35,000 golf simulator can earn $80–$120 per hour when the bay is full and $0 per hour when it is not. Your rent doesn't care about tee times, and the projector bulb still depreciates whether someone is playing Pebble Beach or the bay is dark.
Indoor golf simulator lounges — 2 to 8 bays, memberships, hourly rental, lessons, food and beverage, and corporate events — look like an entertainment business but book like a hospitality business. Revenue comes in five streams that peak at different times, and the KPIs that matter are per bay, not just per venue.
Five Revenue Streams, Five Different Books
1. Bay rental (hourly): The core product. Booked by the hour, often with peak and off-peak pricing. Revenue is recognized as the bay is used, not when it is booked. A prepaid package — 10 hours for $700 — is deferred revenue (a liability) until each hour is redeemed. Breakage on prepaid hours that expire unused is not revenue until expiration, and in some states unredeemed prepayments may be unclaimed property.
2. Membership: Unlimited or discounted access for a monthly fee. A $199 per month membership that includes 4 hours and then 20% off additional hours is two performance obligations: the membership service and the hours. Allocate the monthly fee between them, and defer any amount attributable to unused included hours.
3. Lessons and coaching: A PGA professional's time, often split 60/40 or 70/30 between the pro and the house. If the pro is an independent contractor, you book gross lesson revenue and a contractor expense; if an employee, you book revenue and payroll.
4. Food and beverage (F&B): A bar, small kitchen, or outsourced catering. F&B has its own COGS (liquor, food), labor, and waste, and should be tracked as a separate value stream. The attach rate — F&B revenue per bay-hour — tells you whether the lounge is an entertainment venue with drinks or a bar with simulators.
5. Events and corporate: Full-venue buyouts, leagues, and tournaments. Often the highest revenue per bay-hour, but lumpy and seasonal. Book deposits as deferred revenue until the event occurs.
The KPI Set That Predicts Break-Even
Most venues don't break even until month 12 because fixed costs are high and utilization ramps slowly. Track these weekly:
- Utilization by bay and by hour: Hours booked / hours available. A 4-bay venue open 12 hours a day has 336 bay-hours per week. At 28% utilization and $95 per hour, bay rental is $8,947 per week. At 45%, it is $14,364.
- Revenue per available bay-hour (RevPABH): Total bay-related revenue (rental + membership allocation + lessons) / bay-hours available. RevPABH of $22 vs. $38 is the difference between break-even at 40% and at 25%.
- F&B attach rate: F&B revenue / bay-hours booked. A $18 attach rate on 120 booked hours is $2,160 per week; a $35 attach rate is $4,200. Small menu and service improvements that lift attach rate often lift profit more than an extra bay.
- Member concentration: Revenue from membership vs. hourly. A lounge at 60% membership, 40% hourly has stable revenue but capped upside; the reverse is volatile but higher peak potential. Track churn (members lost / members at start of month) — indoor golf churn often spikes at season change.
- Bay payback: Months to pay off simulator capex per bay. A $35,000 simulator earning $2,800 per month in contribution after direct costs pays back in 12.5 months; at $1,900 it is 18.4 months.
Deferred Revenue and Breakage: Where Founders Get It Wrong
Prepaid packages and memberships create the same trap as annual landscaping contracts: cash is abundant at sale, profit is not yet earned.
- Prepaid hour package: 10 hours for $700 is
Dr Cash $700/Cr Deferred Revenue $700. Each hour used:Dr Deferred Revenue $70/Cr Revenue $70. Hours that expire unused:Dr Deferred Revenue $70/Cr Revenue — Breakage $70, but only after the contract's expiration and in compliance with state gift card and abandonment rules. - Annual membership paid upfront: $1,800 for the year is
Dr Cash $1,800/Cr Deferred Revenue $1,800, recognized ratably at $150 per month, with an adjustment for included hours not used.
Do not count deferred balances as cash available for new simulators. That cash is owed in services.
Cost Structure: What Actually Drives Profit
- Simulators and buildout: Depreciate simulators over 5–7 years, leasehold improvements over the lease term. Track per bay: a $40,000 simulator package over 60 months is $667 per bay per month in depreciation, before maintenance and software subscriptions.
- Software and content: Simulator software licenses and course libraries are often per bay per month or per venue. Tag them as direct simulator cost, not as general software.
- Labor: Bay hosts, lesson pros, and F&B staff. Peak hours need more coverage; off-peak can run lean. Track labor as a percentage of revenue by daypart, not as a flat monthly pool.
- Rent and utilities: Often the largest fixed costs, with HVAC load from enclosed bays. Negotiate a lease that reflects simulator power and ventilation needs.
Keep Your Finances Organized From Day One
An indoor golf lounge is five businesses in one building, and the one that pays for the others changes by month. Track revenue by stream, profit by bay, and deferred revenue by obligation, and the path to month-12 break-even becomes a plan instead of a hope.
Beancount.io keeps those streams as separate value streams in plain text — every bay-hour, every membership, every F&B ticket as a transaction you can audit and allocate. Get started for free and make the simulator investment a ledger you can explain, not a lease you hope covers.