How to Use This Calculator
Choose the period you expect to remain in the property. Enter the property price, deposit, acquisition costs and mortgage assumptions for buying. Add ownership costs, an appreciation scenario and selling costs. For renting, enter starting monthly-equivalent rent, rent-growth assumption and relevant renter costs.
Buy vs Rent Calculation Method
End Net Owner Equity = Projected Property Value − Selling Costs − Remaining Mortgage Balance
Estimated Net Cost of Buying = Buyer Cash Outflows − End Net Owner Equity
Estimated Cost of Renting = Cumulative Rent + Initial Renter Costs + Other Recurring Renter Costs
Why Mortgage Principal Is Not Simply a Cost
A mortgage payment contains financing cost and principal repayment. Principal repayment reduces the outstanding loan and can build owner equity. The model therefore tracks the remaining loan balance rather than treating every mortgage payment as permanently consumed cost.
Property Appreciation
The future property value is calculated from the annual appreciation rate entered by the user. It is only a scenario. No Nigerian property appreciation rate is hard-coded, and an assumed decline can also be entered.
Rent Growth
The model compounds the entered monthly-equivalent rent once per year using the user-entered rent-growth assumption. Actual rent changes can be irregular and depend on the property, agreement, location and market.
Transaction and Ownership Costs
Acquisition costs and selling costs can materially affect a short holding period. Routine ownership costs are also included separately. Users should enter transaction-specific figures rather than relying on a universal fee percentage.
What This v1 Does Not Model
This version intentionally avoids false precision. It does not model tax effects, inflation-adjusted returns, alternative investment returns, deposit opportunity cost or detailed monthly changes in ownership expenses. Those factors can matter and should be considered separately for a high-value decision.
Buy vs Rent in Nigeria
Property prices, rent structures, financing availability, transaction costs and market conditions vary substantially across Nigeria. Compare the actual property and rental alternative being considered and verify current financing and transaction terms before committing funds.
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Frequently Asked Questions
How does the calculator compare buying and renting?
It compares buyer cash outflows net of estimated ending owner equity with cumulative rent and renter costs over the same period.
Does it assume a Nigerian mortgage interest rate?
No. The mortgage rate is entered by the user.
Does it assume property prices always rise?
No. The appreciation assumption is user-entered and can be negative.
Why is remaining mortgage balance important?
Because mortgage principal repaid during ownership can become part of owner equity rather than being treated entirely as consumed cost.
Are acquisition and selling costs included?
Yes, using the acquisition amount and selling-cost percentage entered by the user.
Does this include the opportunity cost of my deposit?
No. v1 deliberately excludes alternative investment returns and opportunity cost, and the result identifies this limitation.
Does a lower calculated cost mean I should choose that option?
No. The result is a planning comparison, not financial advice, valuation or a recommendation to buy or rent.