How Our Condo Cost Calculators Work

True Condo Cost helps you compare the full monthly bill of owning a condo before you make an offer. Listings and lender pre-approvals often focus on principal and interest. Our calculators add the line items buyers forget: HOA dues, property taxes, insurance, PMI, special assessment risk, closing costs, and owner-paid maintenance.

Outputs are educational planning estimates. They are not loan approvals, insurance binders, tax bills, or legal advice.

Each tool uses standard mortgage math for principal and interest, then layers the additional costs you provide. When a calculator models PMI, reserves, or assessment spreads, it uses simplified assumptions described on that page.

If you leave a field blank or at zero, that cost is treated as zero in the math until you enter a value. We do not prefill purchase prices, HOA dues, or tax rates with sample market data.

The contract price you expect to pay, before closing credits. Use your offer amount or a realistic ceiling for buildings you are touring. The purchase price drives loan size, property tax estimates, and PMI thresholds.

Cash you contribute at closing, entered as a dollar amount or percentage depending on the calculator. A larger down payment reduces your loan balance and may eliminate PMI sooner, but it also affects how much cash you need at closing.

The annual interest rate and repayment period for your loan. Use a rate quote from your lender or a conservative estimate for planning. Rate changes move your monthly payment but not HOA, tax, or insurance costs.

Monthly association fees from the current budget or resale certificate, not a year-old listing. HOA pays for shared building costs: master insurance, maintenance, reserves, utilities, management, and amenities. Dues can rise after you buy when insurance renews or capital projects are funded.

Enter a local rate or annual bill converted to a monthly figure. Many buyers mistakenly budget from the seller's existing tax bill. In states where assessed value resets at sale, your tax bill may jump to reflect the purchase price. Check your county assessor or closing attorney for how reassessment works in your market.

Your individual unit policy premium, usually quoted annually and divided by twelve for monthly budgeting. Master policy costs are typically embedded in HOA dues. Some buyers also need flood, earthquake, or wind policies depending on the building and location. Get a quote matched to the association's master policy before you rely on a planning number.

One-time charges levied by the association for major repairs or reserve shortfalls. Calculators may spread an assessment over months or years so you can compare it to your monthly budget. Pending assessments disclosed in resale documents should be modeled separately from hypothetical reserve risk.

Lender fees, title charges, transfer taxes, prepaid escrows, and HOA document fees due at closing. Closing cost calculators use percentages or line items you provide. Actual cash to close comes from your lender's closing disclosure.

Personal savings for items inside your unit (appliances, flooring, HVAC servicing) and optional buffers for assessment risk. HOA reserves fund the building; your personal reserve is separate. Many owners budget a monthly set-aside even when the mortgage and HOA are fixed.

Our calculators generally do not model:

• Home price appreciation or depreciation
• Income tax benefits of homeownership unless a specific tool says otherwise
• Selling costs, agent commissions, or capital gains
• Rental income unless you are using an investment-focused tool
• Exact lender underwriting decisions or HOA questionnaire approval
• Future HOA fee increases beyond what you enter manually

Run at least two scenarios: a base case with documented HOA and tax figures, and a stress case with higher dues, a special assessment, or a higher insurance quote. Compare buildings using the same assumptions so you are not fooled by a lower list price with higher HOA.

For state- and city-specific context on insurance, tax reassessment, and reserve rules, read the guides for your market. When numbers matter for a binding decision, confirm them with your lender, insurance agent, and real estate attorney.