The short answer

Analyze a Las Vegas rental with verified rent evidence, a vacancy allowance, complete operating expenses, a repair and capital plan, current financing, and local rule checks. Calculate net operating income before financing, cap rate from the purchase price, and cash flow after debt service. Then stress test weaker rent, longer vacancy, and a major repair.

No single cap rate makes a property a good investment. A lower-return property with clear records and manageable risk may fit one plan, while another investor may need stronger current cash flow. The numbers should support your goal, cash reserves, time horizon, and tolerance for uncertainty.

1. Build income from evidence

Do not start with the highest advertised rent in a broad ZIP code. Gather several comparable rentals that match the subject property on location, type, bedroom count, condition, size, parking, yard, pool, association amenities, and lease timing. Separate active asking rents from executed lease evidence when that distinction is available.

Your income section can include:

  • Monthly base rent.
  • Other recurring income that is lawful, disclosed, and realistic.
  • A vacancy and credit-loss allowance.

If a property is occupied, review the actual lease, payment history that the seller is authorized to provide, security-deposit records, and any notices or concessions. Confirm how deposits and prepaid amounts transfer at closing.

2. List operating expenses before you look at returns

A model is only as good as its expense assumptions. Build the list from property-specific documents and quotes:

  • Property taxes and assessments.
  • Landlord insurance and any required specialty coverage.
  • Homeowners association dues and known assessments.
  • Repairs, routine maintenance, landscaping, pool care, pest service, and utilities paid by the owner.
  • Property management, leasing, legal, accounting, licensing, and inspection costs where applicable.
  • Cleaning and turnover work between tenants.
  • A capital reserve for systems with longer useful lives.

The IRS lists common rental expenses such as maintenance, insurance, taxes, interest, management fees, repairs, utilities, cleaning, and depreciation in Publication 527. Accounting treatment is not the same as cash-flow treatment. Ask a qualified tax professional how the rules apply to you.

3. Use four simple formulas

Effective gross incomeScheduled rent + other income - vacancy and credit loss
Net operating incomeEffective gross income - operating expenses
Cap rateAnnual net operating income ÷ purchase price
Before-tax cash flowNet operating income - annual debt service
Cash-on-cash returnAnnual before-tax cash flow ÷ initial cash invested

Cap rate excludes financing so you can compare properties on an unlevered basis. Cash-on-cash return includes your financing and initial cash, so it is specific to your deal structure. Neither formula captures every tax effect, future sale result, or change in property value.

4. Work a conservative example

Hypothetical example, not current market data
  • Purchase price: $400,000
  • Scheduled rent: $2,500 per month, or $30,000 per year
  • Vacancy and credit-loss allowance: $1,500 per year
  • Operating expenses and reserves: $12,500 per year
  • Annual debt service: $18,600
  • Initial cash invested: $100,000

Effective gross income is $28,500. Net operating income is $16,000. The cap rate is 4.0 percent because $16,000 divided by $400,000 equals 0.04. Before-tax cash flow is negative $2,600 after the hypothetical debt service. Cash-on-cash return is negative 2.6 percent.

The example shows why gross rent alone is not enough. A property can have positive net operating income and still require cash from the owner after financing. Change one assumption at a time so you can see which facts control the result.

5. Stress test the weak points

Run at least three cases:

  1. Base case: your best evidence-based assumptions.
  2. Downside case: lower rent, a longer vacancy, higher insurance, and one significant repair.
  3. Severe case: an extended vacancy or major system replacement while debt service continues.

Ask how much cash the severe case would require and whether you could carry it without disrupting the rest of your finances. Appreciation can happen, but it should not be used to hide a weak operating model.

6. Complete local and property due diligence

  • Inspect the roof, HVAC, electrical, plumbing, drainage, windows, irrigation, pool, and major appliances.
  • Review association documents for lease restrictions, minimum terms, fees, and pending assessments.
  • Confirm local licensing and land-use rules for the intended rental type. Short-term rental rules differ from ordinary long-term leasing and can vary by jurisdiction.
  • Get a property-specific insurance quote and ask about vacancy, water, pool, and liability coverage.
  • Verify property taxes, utilities, service contracts, permits, and claimed improvements.
  • Plan ongoing maintenance around Las Vegas heat and monsoon conditions. Use the rental property maintenance checklist as a starting point.
  • Decide who will handle leasing, rent collection, inspection, repairs, emergency calls, notices, records, and turnover.
Important: This article is general education and uses a hypothetical example. It is not investment, legal, tax, lending, or financial advice. Verify every property, contract, rule, quote, and calculation with the appropriate professional.

Sources

Sources reviewed October 7, 2026.

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