The biggest mistake short-term rental owners make is recording Airbnb deposits as income without breaking out the components. When Airbnb pays you $950 for a $1,100 booking, you didn’t earn $950. You earned $1,100 in rental income and paid $150 in platform fees. Those are two separate transactions that need to be recorded separately for accurate books and proper tax reporting.

Each Airbnb payout should be recorded with the gross booking amount as income and the host service fee as an expense. Airbnb provides detailed transaction reports that show this breakdown. Download these monthly and reconcile them against your bank deposits. The fees are deductible, but only if you’re tracking them separately from your rental income.

Beyond platform fees, short-term rentals have expense categories you need to track consistently. Cleaning fees for turnovers, guest supplies like toiletries and coffee, utilities if you’re covering them, property management fees, repairs, maintenance, and insurance all count. Furniture and equipment typically need to be depreciated over time rather than expensed immediately, so keep those receipts organized separately.

If you own multiple properties, track income and expenses by property. QuickBooks Online lets you use Classes or Locations to segment your books so you can see profitability per unit instead of just an overall number. Some owners run everything through one bank account and code each transaction to the correct property. Others maintain separate accounts for each rental. Either approach works if you stay consistent.

Personal use adds complexity. If you stay at your rental property sometimes, keep a log of those days. The IRS adjusts your deduction limits based on the ratio of personal use to rental use. A simple calendar noting every day the property is occupied and by whom gives you the documentation you need at tax time.

Set up a dedicated bank account and credit card for your rental activity. This makes bookkeeping dramatically easier because every transaction in those accounts is rental-related by default. Mixing rental and personal finances creates sorting headaches that cost you time every month and increase the chance of missing deductions.

Reconcile monthly at minimum. Short-term rentals generate more transactions than traditional long-term rentals. Real estate investors with STRs often have dozens of transactions per property each month between cleanings, supply runs, guest charges, and platform payouts. Falling behind means reconstructing the story later instead of recording it accurately as it happens.

Don’t forget mileage if you’re driving to properties for turnovers, inspections, or maintenance. Use a tracking app rather than trying to remember trips at year end.

If you have multiple properties or your STR income has grown beyond a side project, working with an LA County bookkeeper for small business who understands rental properties makes sense. The expense categories, depreciation rules, and platform reconciliation are specific enough that generic bookkeeping often leaves money on the table.