When calculating an Airbnb's profit, many people simply take revenue, subtract the mortgage payment, and assume the rest is profit. But reality is far more complicated. After operating a short-term rental myself, I learned that the hidden costs are what determine whether you truly profit or lose money. This article lists the most commonly overlooked ones.
1. Turnover Costs Between Guests
Every time a guest checks out, the property needs cleaning, fresh linens, and resetting. If you have many short-stay guests, cleaning costs add up fast — sometimes eating a large share of revenue. The shorter the stays, the more turnovers.
2. Consumable Supplies
Toilet paper, soap, shampoo, coffee, spices, trash bags — these small items seem cheap, but serving guests continuously turns them into a steady monthly expense.
3. Platform Fees
Airbnb and other booking platforms take a percentage of each transaction. This is a cost you cannot avoid if you use a platform to find guests.
4. Specialized Insurance
Standard homeowners insurance often is not enough for short-term rental activity. You may need specialized STR insurance, which is usually more expensive. Skipping this step is a serious risk.
5. Occupancy and Income Taxes
Many cities require collecting and remitting occupancy tax. There is also income tax on the profit. STR tax handling is fairly complex — work with a CPA to understand your obligations. I do not give tax advice.
6. Furniture and Decor Wear
Furnishings in an STR see heavy use and wear out faster than in your own home. Linens, towels, sofas, kitchen tools all need periodic replacement. Treat this as a recurring expense, not a one-time one.
7. Maintenance and Emergency Repairs
An AC failing mid-summer, a plumbing leak, an appliance dying — with guests present, you often must repair urgently and pay a premium. A reserve fund for these situations is a must.
8. Your Own Time (or Management Fees)
If you self-manage, you are investing a lot of time: answering guests, coordinating cleaning, handling issues. If you hire a management company, they often take 15–25% of revenue. Either way, this is a real cost.
9. Vacancies and the Off-Season
Not every night has a guest. Empty nights and the off-season reduce revenue while fixed costs continue. Factor this in when estimating cash flow.
Why This Matters for Your Loan
Understanding all the costs helps you estimate real cash flow — which is especially important for investment loans like a DSCR loan, where the property's cash flow plays a central role. The more realistic your numbers, the stronger your borrowing decision. Actual results may vary and nothing is guaranteed.
If you want to build an honest cost picture before buying your first or next Airbnb, reach out to William for a free consultation. I am glad to share real operator experience and help you prepare solid financing.