HDB Properties Cheat Sheet for RES Exam Revision

TL;DR: For HDB Properties revision, memorise the eligibility checkpoints, Minimum Occupation Period (MOP), resale workflow, CPF and financing rules, and key quota restrictions. The fastest approach is to connect each rule to a trigger: before OTP, at OTP exercise, during resale application, and at completion.

For the RES examination, HDB Properties is tested under Paper 2, which contains 60 Section A MCQs and 20 case-study MCQs in Section B. Each paper lasts 2 hours 30 minutes, and the current passing mark is 60 for each paper, subject to CEA review.

Use this HDB quick reference together with the HDB Properties topic guide and the RES Exam Guide. For candidates, the core question is always: who may buy, which flat may be sold, what documents are required, and which financing or quota rules apply? The HDB Properties cheat sheet therefore prioritises thresholds and transaction-stage rules rather than lengthy explanations. In short, RES candidates should revise HDB eligibility, MOP, HFE, OTP, resale application, CPF, loans, grants, EIP and SPR quotas as one connected transaction sequence.

A buyer must satisfy an HDB eligibility scheme and applicable ownership, citizenship, age, income, quota and financing requirements before purchasing a resale flat. Common family-nucleus routes include a married couple, an applicant with parents or children, an orphaned sibling arrangement, and an elderly single applicant route where applicable. Always distinguish the specific scheme from general buyer eligibility.

The HDB Flat Eligibility (HFE) Letter gives an upfront assessment of eligibility to buy a new or resale flat, potential CPF housing grants and possible HDB loan amounts. It is a central exam document because it links legal eligibility with financing readiness.

Memorise these checks:

• Singapore Citizen or Singapore Permanent Resident status, depending on the scheme.
• Minimum age requirements under the relevant scheme.
• Existing ownership of another flat or private property.
• Household income limits for grants and HDB loans.
• EIP and SPR quota availability.

For exam questions, do not assume that a person who can buy a resale flat automatically qualifies for every grant or an HDB loan. HDB buyer eligibility is scheme-specific: identify the family nucleus first, then test citizenship, age, property ownership, income, quota and financing conditions.

The Minimum Occupation Period is a mandatory occupation requirement that generally must be satisfied before an owner can sell the flat or acquire private residential property. The applicable MOP depends on the flat type, purchase route, date of allocation or acquisition, and whether the flat is subject to additional restrictions.

For revision, separate three ideas:

• Occupation: the flat must be physically occupied by the required owners and essential occupiers where applicable.
• Sale: owners generally cannot sell during the applicable MOP except under approved circumstances.
• Private property: ownership or disposal of private residential property can affect eligibility to buy a flat, obtain grants or apply for an HFE Letter.

A current HDB resale reference states that first-timer applicants who previously owned local or overseas private residential property must generally observe a 30-month wait-out period after disposal before applying for an HFE Letter to buy a resale flat with a CPF housing grant.

Read every scenario for dates and ownership history. A former private-property owner may still meet one test but fail the grant or timing test. For RES exam revision, treat MOP as an occupation-and-timing rule, and separately test the 30-month private-property wait-out where CPF housing grant eligibility is involved.

The HDB resale transaction follows a prescribed sequence: eligibility assessment, Intent to Sell, HFE, HDB-prescribed OTP, OTP exercise and resale application. A seller must register a valid Intent to Sell through the HDB Flat Portal before granting an OTP. HDB’s current instructions require the Intent to Sell to be registered at least 7 days before the seller grants the OTP, and it must remain valid when the resale application is submitted.

Key checkpoints:

• Seller: valid Intent to Sell.
• Buyer: valid HFE Letter where required.
• Contract: use the HDB-prescribed OTP.
• Application: buyer and seller submit the resale application through the HDB Flat Portal.
• Quotas: EIP and SPR quota compliance must be checked at the relevant transaction milestones.

HDB states that quota compliance is checked when the seller grants the OTP, when the buyer exercises the OTP, and when both parties submit their resale application.

Do not confuse the OTP with HDB approval. The OTP is the contractual instrument, while HDB separately assesses eligibility and processes the resale application. The HDB resale procedure is not complete at OTP: the transaction remains subject to HDB eligibility, quota, financing and resale-application requirements.

The HDB-prescribed Option to Purchase is the required contract form for resale-flat transactions. Candidates should recognise the OTP as the document that records the seller’s grant of an option and the buyer’s right to exercise it within the stated period, subject to the applicable HDB rules.

For case-study questions, identify:

• Whether the seller had a valid Intent to Sell before granting the OTP.
• Whether the buyer had the required HFE Letter at the OTP stage.
• Whether the HDB-prescribed OTP was used.
• Whether the option was exercised within the contractual period.
• Whether buyer and seller remain eligible when the resale application is submitted.
• Whether EIP and SPR quota conditions remain satisfied.

A buyer who does not take a housing loan must declare that the purchase is fully financed using CPF savings and/or cash when submitting the resale application, according to HDB’s current OTP notes.

The exam may present a buyer who was eligible initially but becomes ineligible later. Treat each milestone as a fresh checkpoint rather than relying only on the original approval. For HDB resale questions, always test eligibility at OTP, OTP exercise and resale-application stages; an earlier approval does not override a later failed requirement.

CPF Ordinary Account savings may be used for an HDB flat purchase, but usage is governed by CPF limits, property value, remaining lease and financing conditions. The amount available is not simply the buyer’s total CPF balance. Candidates must distinguish CPF funds used for the purchase, CPF used for monthly instalments, accrued interest and the applicable withdrawal limits.

Important revision points:

• CPF usage is subject to prevailing CPF housing withdrawal limits.
• Remaining lease can affect the amount of CPF that may be used and the loan available.
• Buyers taking an HDB housing loan may need to use available CPF Ordinary Account savings before loan disbursement, subject to prevailing rules and limits.
• A buyer without a housing loan must state that the purchase is funded fully by CPF and/or cash in the resale application.
• CPF housing grants are separate from an HDB loan and must be tested under their own eligibility criteria.

For calculations, identify the purchase price, CPF balance, cash amount, loan amount, grant, valuation and applicable limits before computing the funding gap. CPF is not an unlimited funding source: RES candidates must test the buyer’s CPF balance, withdrawal limits, remaining lease, grant eligibility and loan conditions separately.

Ethnic Integration Policy and Singapore Permanent Resident quotas can prevent an otherwise eligible buyer from purchasing a specific resale flat. These are flat-and-location checks, not merely personal eligibility checks. A buyer may satisfy the family-nucleus and financing requirements but still be unable to proceed because the relevant quota is unavailable.

Memorise the transaction milestones at which quota compliance matters:

• When the seller grants the OTP.
• When the buyer exercises the OTP.
• When buyer and seller submit the resale application.

For SPR households, HDB’s current guidance states that buyers may purchase a resale flat only after obtaining SPR status for at least 3 years, subject to the applicable rules and eligibility conditions. Do not confuse this with the 30-month wait-out period, which concerns certain former private-property owners and CPF housing grant or HFE timing.

Exam strategy: separate ethnicity from citizenship, and separate quota eligibility from grant eligibility. Then check whether the scenario changes between OTP and application. EIP and SPR quotas are continuing transaction conditions, so a buyer must remain compliant at every prescribed milestone, not only when first viewing the flat.

Seller’s Stamp Duty depends on the residential property’s acquisition date and the length of ownership before disposal. For residential properties acquired on or after 4 July 2025, the SSD holding period is 4 years, with rates of 16%, 12%, 8% and 4% for disposals in the relevant successive years.

For properties acquired from 11 March 2017 to 3 July 2025, the older schedule applies: a 3-year holding period with rates of 12%, 8% and 4%. The acquisition-date cutoff is highly testable; do not apply the new schedule to an earlier purchase.

IRAS states that SSD is generally payable within 14 days after the sale or disposal date. A question may ask whether the seller is liable, which rate applies, or when payment is due. Separate SSD from Buyer’s Stamp Duty, Additional Buyer’s Stamp Duty and CPF-related matters.

For RES exam candidates, this topic sits within Paper 2’s practical transaction coverage and should be revised alongside sale procedures and taxation. The SSD answer depends first on acquisition date, then holding period, then the applicable rate; the 4 July 2025 cutoff changed both the period and rates.

Paper 2 is the priority paper for HDB Properties, but candidates must still understand the RES examination structure and current administrative figures. Each paper has 60 Section A MCQs worth 60 marks and 20 case-study MCQs worth 40 marks, with 2 hours 30 minutes allowed per paper. The passing mark is 60 for each paper, subject to CEA review.

Item	Current revision fact
Full sitting, 2 papers	S$512.30 including GST
Modular sitting, 1 paper	S$283.40 including GST
Paper 2 HDB focus	HDB rules, eligibility, resale, CPF and financing
Case-study value	20 questions, 40 marks per paper

Use the Free RES Practice questions to practise reading dates, identifying transaction stages and eliminating answers that mix HDB, CPF and tax rules. For broader preparation, review the RES Course Guide before planning a 2–4 month study schedule. The most efficient HDB revision method is to memorise thresholds first, then apply them to short buyer, seller, OTP, CPF and SSD scenarios under timed conditions.

What should be memorised first? Start with HFE, Intent to Sell, the 7-day pre-OTP requirement, MOP, 3-year SPR status, 30-month private-property wait-out, CPF limits, EIP/SPR checkpoints and SSD dates and rates.

Is HDB approval the same as OTP exercise? No. The OTP is the prescribed contract form, while HDB separately checks eligibility, quotas, financing and the resale application.

When must the seller register Intent to Sell? HDB’s current notes state that it must be registered at least 7 days before granting the OTP and remain valid when the resale application is submitted.

What is the current SSD rule? For acquisitions on or after 4 July 2025, the holding period is 4 years and rates are 16%, 12%, 8% and 4%; earlier acquisitions from 11 March 2017 to 3 July 2025 use the 3-year 12%, 8% and 4% schedule.

Where does HDB Properties appear in the exam? It is a Paper 2 topic. The Prepare app offers practice questions across all 13 RES examination topics, making it useful for checking HDB knowledge alongside the other Paper 2 areas. For RES candidates, the best HDB quick reference is a milestone checklist: eligibility, Intent to Sell, HFE, OTP, quotas, application, financing, completion and tax.