Calculator ยท Commercial property
Commercial purchase calculator
Use this calculator for commercial property: offices, shops, clinics and other commercial strata space. Side by side it sets out the price, 9% GST per instalment, non-residential buyer's stamp duty, your cash outlay up to week eight, and each drawdown from the loan. The loan rate opens at 1.20% a year and the price at an illustrative figure; enter your own figures in both.
Your inputs
Every box below recalculates the moment you edit it.
Illustrative figure, enter your own price.
Banks usually keep 90% for a business buying space it will run from; space bought to let tends to top out around 80%.
Promotional rates expire, so key in the rate that follows the lock-in.
Both figures only drive the property tax tile below.
Weeks 0 to 8 after booking
Choose your booking day to see real dates beside each week.
The loan at a glance
Using the lending share picked on the left.
What falls due in weeks 0 to 8
Every payment carries its own 9% GST, payable alongside it.
Your own cash before building starts
Your own money only; sums released by the lender sit elsewhere.
Construction-stage instalments are lender-funded after this, but you still pay the GST on each of them yourself.
Payments by construction stage
The stages come from the statutory schedule for commercial units sold before completion; actual timing follows the building work, not the calendar.
Scroll the table sideways on a phone
| Stage | When | % | Payment | GST 9% | From you | From the loan | Loan % | Interest | Principal | Monthly bill |
|---|
Monthly instalment
After the whole loan has been released.
Until completion, interest accrues only on drawn sums, so monthly repayments step up as the table's last two columns show.
Property tax, rough guide
Levied once TOP is issued; building years carry none.
Offices and shops pay a flat 10% of annual value each year; IRAS sets that value by looking at rents for comparable space, whatever figure you type.
70%, 80% and 90% lending compared
Term and rate are held; each column borrows a different share.
What sets a commercial purchase apart
Commercial units carry 9% GST on the price, which a GST-registered firm can usually claim as input tax. Neither additional buyer's stamp duty nor seller's stamp duty applies, so the duty is the buyer's stamp duty alone. Lending limits depend on the borrower and the use: an owner-occupying business often gets more than an investor.
The property tax box uses your own rent assumption; IRAS sets the actual annual value once the building is complete.
Related tools
The commercial property guide explains strata offices, shops and medical suites, with GST and financing. The industrial and commercial stamp duty calculator shows the duty bands on their own. Commercial projects in the directory are on the commercial page.
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