How much could you keep
from your rental?

Scheduled annual rent = monthly rent × 12. Vacancy loss = scheduled annual rent × vacancy days ÷ 365. Collected rent = scheduled annual rent − vacancy loss.

Management: collected rent × entered percentage, or monthly flat fee × 12. Occupied-time flat billing prorates the latter by (365 − vacancy days) ÷ 365.

Operating costs include entered taxes, base and separate insurance, HOA, maintenance, owner-paid utilities, management, and each modeled year’s leasing and renewal charges. Operating income is collected rent less those operating costs, before financing.

First-year cash flow = operating income − annual mortgage principal and interest − assessment payments due in that year − annual capital reserve contribution. Ongoing cash flow uses its own leasing/renewal events and only explicitly selected ongoing assessment installments. Monthly averages = annual cash flow ÷ 12.

Leasing percentage applies to one unit’s monthly rent per event. For multifamily, average unit rent is total property rent ÷ unit count; use a fixed per-event figure if different unit rents require a different fee. Unit count never multiplies property-level rent or expense budgets.

No appreciation, sale proceeds, income taxes, tax deductions, future rent increases or unentered charges are modeled. Rent vs. Sell and Investment ROI are separate tools and are not part of this calculation.