- ABSD Additional Buyer's Stamp Duty
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Extra stamp duty charged on top of BSD when you buy additional residential property. Rates escalate sharply for Singapore Citizens buying 2nd+ property, Permanent Residents, and foreigners. Current ABSD is a major consideration for upgraders.
Common trap: buying a condo before selling your HDB triggers ABSD — which is refundable only if you sell the HDB within 6 months. See the upgrade sequencing guide →
- BSD Buyer's Stamp Duty
Stamp duty paid by the property buyer, calculated on the higher of purchase price or market value. Tiered rate: 1–6% for residential depending on purchase amount. Always the buyer's responsibility, never the seller's.
- BTO Build-to-Order
New HDB flats sold directly by HDB through quarterly launches. Priced below resale market in exchange for a 3–5 year wait before the flat is built and keys handed over. Subject to a 5-year MOP before you can sell.
- CEA Council for Estate Agencies
Singapore's regulator for real estate agencies and salespersons. Every practising agent must be CEA-registered (individual registration number) and operate under a licensed estate agency (agency Estate Agent Licence number). Verify any agent on the CEA public register →
- COV Cash Over Valuation
The amount a buyer pays above HDB's formal valuation. Since CPF and HDB loan only cover up to the valuation amount, any excess must be paid in cash by the buyer. Example: sale at $580k on a $570k valuation = $10k COV. Full valuation explainer →
- CPF Central Provident Fund
Singapore's mandatory savings system. Your Ordinary Account (OA) is commonly used to fund property purchases. When you sell, you must refund the CPF principal used plus 2.5% per annum accrued interest, compounded — this money goes back into your own OA, not your cash pocket. Often catches first-time sellers off guard.
- EC Executive Condominium
Hybrid public-private housing. Sold like a condo but with HDB eligibility rules for the first 5 years (MOP). Becomes fully private after 10 years. Popular upgrade from HDB for dual-income households.
- HDB Housing & Development Board
Singapore's public housing authority. "HDB" commonly refers to both the organisation and the flats themselves. ~80% of Singapore residents live in HDB housing. Flat types include 2-room, 3-room, 4-room, 5-room, Executive, and (rarely) Jumbo.
- HFE HDB Flat Eligibility Letter
Replaces the old HLE (HDB Loan Eligibility) system since 2023. Required before a buyer can be granted an Option to Purchase. Confirms citizenship, income, existing property holdings, and loan eligibility — basically pre-qualifies the buyer.
- LTV Loan-to-Value ratio
Percentage of property value a bank or HDB will lend. Typical LTV: 75% for first HDB loan or bank loan. Lower for subsequent properties. A 75% LTV on a $600k flat = $450k max loan, $150k minimum downpayment (cash + CPF).
- MOP Minimum Occupation Period
The minimum period you must occupy your HDB flat before selling. 5 years for most flats, starting from the key collection date (not booking or signing). Check yours at HDB website → My HDBPage → Flat Details. Full post-MOP selling guide →
- MSR Mortgage Servicing Ratio
Cap on mortgage repayments for HDB flats and Executive Condominiums: monthly mortgage cannot exceed 30% of gross income. Applies to both HDB loans and bank loans used for HDB purchase. Distinct from TDSR.
- OTP Option to Purchase
A legal document granting the buyer an exclusive right to purchase the property within a set window (21 days for HDB). Buyer pays an Option Fee to get it, and an Option Exercise Fee to confirm. For HDB, combined deposit is capped at S$5,000 total regardless of price — very different from private property's typical 5% deposit.
- SORA Singapore Overnight Rate Average
The benchmark interest rate that replaced SIBOR in 2024. Used by banks as the base rate for floating mortgage packages. SORA-pegged packages typically priced as "3-month SORA + spread" (e.g., SORA + 0.80%).
- SRX Singapore Residential Exchange
One of Singapore's major property listing portals alongside PropertyGuru, 99.co, and EdgeProp. Also publishes the SRX X-Value, an algorithm-based valuation estimate useful as a data sanity-check but not as an authoritative number.
- TDSR Total Debt Servicing Ratio
Total monthly debt payments — including mortgage, car loan, credit cards, and other debt — cannot exceed 55% of gross income. Applies to all bank-granted property loans (HDB + private). Banks must stress-test affordability at a minimum 4% interest rate regardless of current market rates. See the affordability calculator →
- TOP Temporary Occupation Permit
Issued by BCA when a new building is fit for occupation (usually 2–4 years after a condo launches). Marks the start of defect liability period. For new condo buyers, keys are handed over at TOP.
- URA Urban Redevelopment Authority
Singapore's land-use planning agency. Publishes authoritative private property transaction data (via the Realis system) used by agents and buyers to research recent sale prices. Also enforces planning rules for redevelopment and subdivision.
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