Your rental bank balance and your taxable rental income answer different questions. For owners in Louisville, the four mistakes below can blur that distinction. This article covers federal tax basics; state and local taxes, personal use and your ownership structure need separate review. It does not estimate your tax savings.
1. Losing the property’s depreciation history
Depreciation spreads qualifying property costs over time for tax purposes; it is not a cash payment. Residential rental buildings generally use a 27.5-year period under the federal General Depreciation System, excluding land. The depreciable amount, method and date the property is ready and available for rent matter. Keep prior schedules and conversion records. [1]
Assemble the purchase closing statement, improvement invoices, dates the home became available for rent and prior returns. Give the tax adviser a list of equipment replacements and personal-use periods. Those records are more useful than a single estimate of what the house is worth.
2. Treating every payment or trip as deductible
Keep rental and personal spending distinguishable. Mortgage principal is not a rental-expense deduction. Travel needs a qualifying purpose and adequate records; home-to-rental trips can be nondeductible commuting. Eligibility comes before selecting a mileage rate. [1]
Ask your adviser whether the actual-expense or standard-mileage method applies to your vehicle. If you use standard mileage, check the IRS rate for the travel date and keep dated trip records. A published rate alone does not make a trip deductible. [1] [2]
Reconcile the ledger with bank activity and supporting invoices. Flag refunds, reimbursed charges, duplicate payments and spending that served both personal and rental use. Give the adviser the exceptions instead of assigning a tax treatment from the bank description alone.
3. Classifying work by its price alone
Qualifying repairs may be deducted currently. Improvements generally must be capitalized—recorded as property costs rather than immediately expensed. The work, the larger project and available tax elections matter more than the invoice total alone. Give your adviser the scope of work before deciding how to record it. [1]
Ask contractors to describe the work, affected components and scope. Preserve estimates, change orders and final invoices so the adviser can distinguish an isolated repair from a larger replacement project.
4. Assuming a tax loss is immediately usable
Rental losses can be limited by passive-activity and at-risk rules, so a loss on paper may not reduce this year’s tax bill. Ask which limits apply and which amounts carry forward. Have the adviser distinguish your tax result from the cash the property actually generated. [1]
Ask which losses are carried forward, what documentation is missing and whether a planned sale or change of use alters the analysis. If a strategy requires additional study or professional fees, compare those costs with the expected benefit under your actual tax position.
What to bring to the review
Bring the ledger, supporting invoices, loan statements, lease, travel records and depreciation schedules. Ask for three clear answers: which costs are deductible now, which must be tracked for later years, and which claimed losses you can use this year. Keep the unresolved items visible rather than filling gaps with estimates you cannot support.
Sources and scope
Sources checked 2026-09-24. This article provides general information; it does not replace advice about a specific property, policy, tax return or legal dispute.
[1] IRS Publication 527: Residential Rental Property — 2025-return edition available when checked; do not treat its annual mileage figure as the 2026 rate.
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