How to estimate rental yield without a promise

Rental yield is a calculation, not a promise of income. A buyer can use it to compare assumptions, but should show vacancy, service fees and repairs rather than dividing an optimistic annual rent by the purchase price. Keep the source and date of each number next to the worksheet.

What belongs in gross and net yield?

For an illustrative condo costing 1,000 planning units and expected to collect 40 units of rent in a full year, gross yield is 4%. These are invented units, not Singapore prices or a forecast. Net yield needs deductions for periods without a tenant, management or leasing fees, maintenance, insurance, property tax, repairs and other owner costs. If only 11 months are rented and costs total 10 units, the illustrative net income becomes less than the simple 40-unit headline. Calculate the exact scenario you consider plausible. The condo maintenance budget helps list recurring lines; the rental manager guide helps price delegated work.

Use current, comparable rental evidence for the location, size, condition and lease terms, and verify it before using a number. URA's property-buying guide gives the official buyer context and documents. A sales agent's projected rent is an assumption until a real lease is agreed. If an agent helps source a property or tenant, CEA's guidance on engaging a property agent helps clarify representation and fees. Ask for the evidence behind any “certain return” language.

How should purchase costs be treated?

Record the property price, Buyer's Stamp Duty and other acquisition expenses separately before calculating a return on all capital committed. IRAS's current BSD guide explains the official duty calculation and should be rechecked for the actual transaction. If financing is used, distinguish property yield from cash return after loan payments. CPF's home-ownership guide sets conditions for using eligible savings; it does not guarantee that a purchase is affordable or profitable. Ask a qualified financial or tax adviser about personal circumstances.

A fictional Apartment A might show higher advertised rent but require more work before leasing; Apartment B might show lower rent and fewer expected vacancies. Test at least three scenarios: expected, one month vacant and a major repair. A single “market yield” can hide which assumption drives the result. Do not mix a one-off capital gain hope into rental income.

What decision should follow the calculation?

Compare the net cashflow with the buyer's reserve and risk tolerance. Ask whether the purchase still works if rental income starts later than expected. Revisit actual rents and costs after a year if bought. If a provider offers a rental guarantee, read the exact contract, counterparty and exclusions rather than treating an advertisement as secure income. Our new-versus-resale cost guide helps map purchase timing. You can send NewLaunchGuru a yield-assumption question for editorial help; we do not provide investment advice or promise a rental manager.

Keep rent growth at zero in the base case unless there is a documented reason to model it otherwise. If a salesperson supplies a future rent, ask for current comparable transactions and mark the differences in size, age and furnishing. Run a lower-rent case as well, because financing and recurring costs continue during a weak market.

Common questions