Budget for every cost you will pay to buy, finance, prepare, lease, and operate the property—not just the mortgage. That usually means taxes, insurance, association fees, owner-paid utilities, maintenance, repairs, leasing or management, vacancy, and a reserve for larger replacements. Use local bills and quotes to estimate amounts; there is no reliable universal percentage for every rental.
Start with a cash budget, not just the mortgage
A rental property’s monthly rent is not the amount available for your mortgage or profit. First account for operating costs and periods without rent, then look at what remains for debt payments and other uses. Separate routine expenses from irregular costs so that a quiet month does not make future repairs look free.
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Build one line per expense and note its expected amount, timing, estimate source, who pays it, whether it continues during vacancy, and what you actually pay. Add annual costs for a monthly planning view by dividing the annual total by 12, but keep the timing visible: tax bills and repairs may not arrive evenly.
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What to include in the rental-property budget
Purchase, financing, and getting the property ready
- Mortgage payments and loan charges: Track the principal and interest portions separately. Both affect cash flow, but they are not interchangeable for tax reporting.
- Closing and financing costs: Include relevant costs in the cash needed to acquire the property; their tax treatment may differ from their cash-budget treatment.
- Initial work and equipment: Budget for repairs, safety work, furnishings, or equipment needed before the home is ready to rent. Keep these startup costs separate from ongoing operating expenses.
Recurring ownership costs
- Property taxes and local assessments: Use the current bill or assessment and check for other applicable local charges.
- Insurance: Include landlord or property coverage and liability coverage. If considering loss-of-rent protection, compare its premium, deductible, coverage, and exclusions.
- Association charges: Add HOA, condominium, or other association fees where applicable.
- Utilities and services: Include only costs the owner is responsible for under the lease and local arrangement—for example, water, sewer, electricity, gas, trash, internet, or common-area service.
- Regular upkeep: Allow for services such as landscaping, pest control, cleaning, inspections, and routine maintenance when you pay for them.
Leasing and day-to-day operations
- Finding and placing tenants: Account for advertising or listing, screening, tenant placement, and leasing commissions where applicable.
- Management and rent collection: If you hire a manager, get a local quote and check which tasks are included and whether leasing or turnover is charged separately.
- Repairs and supplies: Include contractor costs, parts, supplies, and service calls. Use the property’s condition and maintenance history rather than assuming this cost will be the same every year.
- Professional help: Include legal, accounting, bookkeeping, or other professional fees when you expect to need them.
- Travel or vehicle costs: Include these only when they are genuinely relevant and trackable; tax rules apply.
Vacancy, turnover, and larger replacements
- Vacancy and lost rent: Estimate realistic periods between tenants for this property and market. Fannie Mae recommends considering a vacancy set-aside; it does not establish a universal percentage.
- Bills that continue without a tenant: Loan payments, taxes, insurance, utilities, and lawn or snow service may continue during vacancy if you remain responsible for them.
- Turnover: Allow for cleaning, paint, lock changes, and new leasing costs when a tenant moves out.
- Major repairs and replacements: Consider the age, condition, inspection findings, maintenance records, warranties, and known remaining life of major components. Keep this reserve distinct from routine maintenance.
- Emergency cash: Choose a buffer that reflects the property’s condition and your ability to pay for an unexpected problem; no single amount suits every owner.
How to estimate amounts for your property
Use current, property-specific information rather than a generic rule of thumb. Fannie Mae’s rental-property budgeting guidance recommends using local information for estimates, including asking the previous owner or utility company about utilities, contacting management companies for rates, and accounting for vacancy.
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- Check current property tax bills, assessments, and association statements.
- Request insurance quotes and confirm what coverage, deductibles, and exclusions apply.
- Ask utility providers for estimates or review prior bills, while verifying which services the owner pays.
- Review the seller’s expense history, then verify it against bills, the property’s condition, and current local rates.
- Get contractor estimates for known work and use maintenance records, inspections, and warranties to plan for irregular repairs or replacements.
- Ask prospective managers for written rates and clarify leasing, turnover, and other charges.
The so-called “50% rule” and other ratios should not be treated as guaranteed estimates. Actual costs depend on the property, location, lease arrangement, and work required. The cited guidance supports estimating the expenses that apply to the property, not relying on one percentage to predict them.
Keep cash flow and tax treatment separate
A cash budget answers when money leaves your account and how much cash to keep available. A tax schedule classifies income and expenses under tax rules. They are related, but they are not the same calculation.
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The IRS says, “In most cases, the expenses of renting your property, such as maintenance, insurance, taxes, and interest, can be deducted from your rental income.” IRS Publication 527 (2025), Residential Rental Property lists common categories including advertising, cleaning and maintenance, commissions, depreciation, insurance, interest, legal and professional fees, management fees, repairs, taxes, and utilities.
- Depreciation: It is a tax expense, not a cash payment in the period claimed, so do not count it as cash available to pay bills.
- Mortgage principal: It is a cash outflow, but it is distinct from mortgage interest; the cited IRS guidance identifies interest as a common rental expense.
- Repairs and capital expenses: Their tax treatment can differ. Do not assume a larger improvement is treated like an ordinary repair or that a deduction makes work economically free.
- Personal use: If you use the property personally as well as renting it, expenses may need to be divided between rental and personal use.
Tax treatment can depend on the tax year, accounting method, type of work, personal use, and your circumstances. Consult the current IRS guidance or a qualified tax professional. The linked IRS publications are U.S. federal sources; rental taxes, landlord-tenant rules, permitted charges, utility billing, and insurance availability differ by location, so owners outside the United States should consult their local authorities.
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Keep estimates and actual costs organized
Record expenses by property and category, retaining bills, statements, contracts, and receipts. Compare estimates with amounts paid so you can adjust future budgets and see which costs are recurring, vacancy-related, or irregular. The IRS provides rental real estate recordkeeping guidance; Fannie Mae’s budgeting guide is also useful for organizing operating costs.
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