Whether you are an HDB homeowner subletting extra bedrooms, renting out an entire HDB flat under HDB approval, or managing a portfolio of private residential condominiums, understanding how to use an HDB Rental Income Tax Calculator in Singapore is essential. Rental income is treated as taxable assessable income by the Inland Revenue Authority of Singapore (IRAS).
Calculate Property Stamp Duty & Rental Tax
Estimate net taxable rental income, allowable interest deductions, and property stamp duty.
1. What Constitutes Gross Rental Income?
IRAS defines Gross Rental Income as the total rental payment received from tenants, including payments for furniture, fittings, maintenance fees, and utility reimbursements.
Exclusions from Taxable Rental Income
Security deposits refunded to tenants at tenancy end are non-taxable. However, forfeited security deposits retained for tenant breach or unpaid rent become taxable in the year of forfeiture.
2. The 15% Deemed Expense Rule vs Actual Expenses
To reduce paperwork for residential landlords, IRAS offers two methods for claiming rental expense deductions:
Option A: Simplified 15% Deemed Expense
Claim a flat 15% deduction on Gross Rent without keeping receipts for repairs, agent commission, or maintenance. Mortgage interest remains separately deductible!
Net Taxable Rental = (Gross Rent × 85%) - Mortgage Interest
Option B: Actual Itemized Expense Claim
Deduct actual incurred costs such as agent commission, property tax, fire insurance, aircon servicing, and repairs. Must retain complete receipts for 5 years.
Net Taxable Rental = Gross Rent - Actual Expenses - Mortgage Interest
3. Deducting Housing Loan Mortgage Interest
Interest paid on bank housing loans or HDB concessionary loans taken to purchase the rental property is fully tax-deductible against gross rent. Note: Only the interest portion is deductible—principal repayments cannot be claimed.
4. Specific Rules for HDB Room & Whole Flat Rentals
Renting out HDB flats requires compliance with Housing & Development Board (HDB) minimum occupation period (MOP) rules and citizenship eligibility:
- HDB Bedroom Subletting: Income from renting 1 or 2 bedrooms while owner occupies the unit is taxable. 15% deemed expense option applies.
- Whole HDB Flat Rental: Requires completion of 5-year MOP and HDB approval. Income is reported under owner's personal income tax return.
5. Building an HDB Rental Tax Calculator in Excel
Excel Formulas for Rental Tax Calculation
- Cell B1 (Monthly Gross Rent): e.g.,
3500 - Cell B2 (Annual Gross Rent):
=B1 * 12 (e.g., S$42,000) - Cell B3 (Annual Mortgage Interest): e.g.,
12000 - Cell B4 (15% Deemed Expenses):
=B2 * 0.15 (e.g., S$6,300) - Cell B5 (Net Taxable Rental Income):
=MAX(0, B2 - B4 - B3) (e.g., S$23,700)
Related Property & Tax Guides
6. Frequently Asked Questions
Is HDB rental income taxable in Singapore?
Yes. All gross rental income earned from renting out an entire HDB flat or individual bedrooms is subject to Singapore personal income tax under IRAS guidelines and must be declared in your annual income tax return (Form B/B1).
How does the 15% deemed expense rule work for rental property tax?
To simplify tax filing for residential property owners, IRAS allows individual landlords to claim a flat 15% deemed expense deduction on gross rental income (in place of actual maintenance, agent fees, and fire insurance), plus claim actual mortgage interest paid on the property loan.
Can joint property owners split rental income tax in Singapore?
Yes. Net taxable rental income is apportioned between co-owners based on their legal share of ownership in the property (e.g., 50/50 for joint tenancy or according to tenancy-in-common shares).
Is property tax deductible against rental income?
Property tax paid to IRAS for the rented premises is deductible if you opt to claim actual itemized rental expenses. However, if you opt for the 15% simplified deemed expense method, property tax is deemed covered under the 15% flat deduction (though mortgage interest remains separately deductible).
