Selling an HDB flat in Singapore: MOP, quotas and the CPF refund

In this article

Written by

Kooky

Builder of Shaka, the payment router that pays every agent their commission on closing date.

About Kooky and Shaka →

The price agreed for a Housing and Development Board flat is not the sum that reaches the seller. Between the two stand a housing loan to redeem, Central Provident Fund savings to put back with interest, and a set of conditions that decide whether the flat may be sold at all, and to whom. An owner who has not checked them can find a willing buyer and still have no sale.

This guide follows the seller's side of an HDB resale in Singapore, in the order the conditions bite: the minimum occupation period, the Ethnic Integration Policy and Singapore Permanent Resident quotas, the Intent to Sell, the option granted to the buyer, the resale application, and the arithmetic of the proceeds. It draws on HDB's eligibility page for sellers, two CPF Board pages on refunds, and the Singapore government's service guide to selling a flat. Where those pages are silent, the guide says so.

HDB eligibility page for sellers; Singapore government service guide to selling an HDB flat, last updated 24 November 2022.

The minimum occupation period comes first

The minimum occupation period, or MOP, is the time an owner must live in the flat before it can be sold on the open market. HDB's eligibility page sets it mainly by the way the flat was acquired.

For the cases a seller is likely to meet today the answer is five years. That is the period HDB gives for a flat bought from HDB itself, for a flat bought from a developer under the Design, Build and Sell Scheme, and for a resale flat bought with a CPF Housing Grant. A resale flat of two rooms or more bought without a grant also carries five years, when the resale application for that purchase was made on or after 30 August 2010.

Older purchases follow older rules. A flat of that kind whose resale application fell between 5 March and 29 August 2010 carries three years. Before 5 March 2010 the period depended on the financing: two and a half years with an HDB loan, one year with a bank loan or no loan at all. HDB still lists these shorter periods beside the five-year rule.

Two schemes stand apart. A flat received under the Selective En bloc Redevelopment Scheme with portable rehousing benefits carries five years; other flats under that scheme carry seven years from the selection of the replacement flat or five years from occupation, whichever comes earlier. A flat bought under the Fresh Start Housing Scheme carries 20 years, four times the usual period.

How the occupation period is counted

According to HDB, the period starts on the date the owner collects the keys.

The more important rule is what the count leaves out. HDB excludes any period during which the owner does not occupy the flat, and gives two examples: a time when the whole flat is rented out, and a time when the flat lease has been infringed. Five calendar years after key collection are therefore not always five years of MOP. An owner who let the whole flat for a stretch has that stretch taken out of the count, and reaches the end of the period later than the calendar suggests.

There is no need to compute this by hand. HDB directs owners to My HDBPage, reached with a Singpass login, where the status appears under My Flat, then Purchased Flat, then Flat Details, on the line headed Minimum Occupation Period.

The government's service guide adds a rule that shapes the timing of a move: an owner can hold only one HDB flat at a time, so the current flat must be sold before another is bought. That guide was last updated on 24 November 2022, and it describes the sequence in general terms; the arrangements open to an owner who sells and buys at once are outside what the pages read for this article set out.

Ethnic and SPR quotas decide who can buy

Meeting the MOP makes a flat saleable. It does not make it saleable to everyone. Two quotas apply to each block and each neighbourhood: the Ethnic Integration Policy, which sets a limit for each ethnic group, and the SPR quota, which sets a limit for households of Singapore Permanent Residents. HDB states the consequence for sellers plainly: a flat cannot be sold if the sale would push the block's or the neighbourhood's ethnic or SPR proportion over its limit.

The same page gives the two situations in which a sale is not restricted. The first is when the buyer's ethnic group and SPR status are still within the limits for both the block and the neighbourhood. The second is when the seller and the buyer belong to the same ethnic group, or share the same citizenship type: a sale of that kind replaces one household with another of the same category and leaves the proportions as they were.

For the SPR quota, HDB sorts buying households into three categories. A Singapore Citizen household has at least one citizen among the buyers. A Malaysian SPR household has no citizen buyer and at least one Malaysian permanent resident. A non-Malaysian SPR household is one where every buyer is a permanent resident who is not Malaysian. The SPR quota, HDB says, applies to the last group only: families with no citizen and no Malaysian permanent resident in the household. Malaysians are excluded from it.

The quotas move. HDB updates them on the first day of each month, and the figures of a given month apply to complete resale applications submitted during that month. A buyer who fits the quota when viewing the flat in one month may not fit it when the application is filed in the next, and the reverse is also true.

The percentages themselves are not on the eligibility page as it could be read for this article, and this guide does not state them. What a seller sees is the prevailing position of the block and the neighbourhood, shown when the Intent to Sell is registered.

Bankruptcy and divorce do not bar a sale

Two personal situations have rules of their own on HDB's eligibility page.

The first is bankruptcy. Where at least one owner of the flat is a Singapore Citizen, HDB says the consent of the Official Assignee is not required to sell, and gives the Housing and Development Act as the basis. Where none of the owners is a citizen, the owners must obtain the Official Assignee's consent before selling. The test is the citizenship of the owners as a group, not of the bankrupt owner alone.

The second is divorce. A flat can be sold after a divorce provided the MOP and every other eligibility condition are met; a divorce does not shorten the period. HDB asks for the document that fits the case: a Writ for Judicial Separation, formerly called a Deed of Separation; or the Interim Judgment together with the Certificate of Making Interim Judgment Final, formerly the Decree Nisi and the Decree Nisi Absolute; or, for Muslims, the Divorce Certificate. Any Order of Court is supplied with it.

Language matters here as well. A document that is not in one of Singapore's four official languages needs an official English translation, and HDB specifies who may produce it: an interpreter of the Supreme Court or of the Family Justice Courts.

The Intent to Sell opens the process

The seller's first formal act is to register an Intent to Sell. HDB's eligibility page places it on the HDB Resale Portal and gives its purpose as checking eligibility. HDB's page for estate agents and salespersons words it as a requirement, and names a different doorway: sellers "are required to register an Intent to Sell via the My Flat Dashboard". The two pages agree on the obligation and differ on the name of the place where it is done.

What the registration returns is set out in the government's service guide. HDB confirms the seller's eligibility at once, and with it supplies three pieces of information: the ethnic and SPR quota position of the flat, the upgrading status of the flat and the billing attached to it, and the prices at which nearby flats have changed hands of late.

Each has a use. The quota position tells the seller which buyers the flat can go to this month. The upgrading status and billing show whether upgrading costs sit on the flat's account, which belongs in the seller's sums. The transacted prices give a public reference for the asking price.

The registration also starts a clock. HDB's Important Notes on the Option to Purchase, a document updated on 7 September 2026, say a seller must have a valid Intent to Sell at least 7 days before granting an option, and call the interval a 7-day cooling-off period. The same notes require the Intent to Sell to be valid when the resale application is submitted. They do not say how long a registration stays valid, and HDB's web page on the option could not be opened, so that figure is not stated here.

Granting the Option to Purchase

Once seller and buyer agree on a price, the seller grants an Option to Purchase, the document that gives the buyer the right, for a fixed time, to buy the flat at that price. The existing guide to buying a resale flat treats the form from the buyer's side; three things matter to the seller.

The first is the fee. The government's service guide puts the option fee "between $1 and $1000", in Singapore dollars. The amount is agreed between the two parties, and it is indicated on the HDB Resale Portal, so it is recorded with the transaction and not left to a private note.

The second is time. From the grant, the buyer can exercise the option or let it expire after 21 calendar days, according to the same guide. For those three weeks the seller waits on the buyer's decision.

The third is what the fee is, in the eyes of the CPF Board. Option money received in cash, whether the option fee or the fee paid on exercise, counts as part of the selling price. It is not a bonus on top of it. The CPF Board's page on refunds says so in its passage on sales that fall short, and the consequence there is direct: the money must go back to the seller's CPF account before the transaction can be completed.

HDB's Important Notes on the Option to Purchase, updated on 7 September 2026, give the ceilings. The option fee is an amount not exceeding S$1,000. The option fee and the option exercise fee together make up the deposit, which may not exceed S$5,000, and neither fee may be zero. The notes set no separate limit for the exercise fee: it is whatever the deposit ceiling leaves once the option fee is counted. They also confirm the option period of 21 calendar days after the option date, weekends and public holidays included, with expiry standardised at 4pm.

The resale application and the eight weeks after

An exercised option is followed by the resale application to HDB. It is made in two halves. Seller and buyer each submit their own portion, separately, and HDB treats the application as complete only when it has received both. Either party may go first, the government's service guide says, but the other must then submit within 7 calendar days.

One sentence on HDB's eligibility page carries more weight than its length suggests: both parties should meet all current eligibility conditions and resale requirements on the date the second party submits. That is the date on which the application becomes complete, and it is the month of a complete application that fixes which quota figures apply. A seller whose buyer is close to a quota limit therefore has a reason to watch the calendar around the first of the month.

The application is also where a seller who cannot move out by completion says so. The service guide tells the seller to seek the buyer's agreement and to indicate any request for a temporary extension of stay when submitting. The length such an extension may run is not given on the pages read.

Before approval, both sides endorse the resale documents and pay their fees online. HDB then uploads its approval letter and sends a text message to say that it has. From that point, the service guide counts about eight weeks to the last step, the completion of the transaction.

The completion appointment has its own preparation. Before it, the service guide says, the seller rectifies any unauthorised renovation works and vacates the flat. At the appointment the keys are handed over, the parties agree how outstanding property tax is paid between them, and a sales agreement is signed where an HDB housing loan is being taken.

What must go back to the CPF account

One deduction after the loan is not a cost at all. It is the seller's own retirement savings returning to where they came from. The CPF Board's rule is that a member who used CPF savings for a property refunds them, with accrued interest, when the whole property is sold. The same holds when a member transfers or sells a share of it, though the Board notes that the amount may then be worked out differently.

The Board writes the refund as P plus I. P is the principal: every dollar of CPF savings withdrawn for the flat. I is the accrued interest. The government's service guide describes it as the interest the member "could have earned if kept in the CPF Ordinary Account". The CPF Board's infohub article on sale proceeds, dated 26 July 2024 and updated on 30 November 2025, adds that the refund covers housing grants received and the interest on them. A grant that helped pay for the flat is therefore refunded too, with its interest.

A third component exists for some older sellers. A member aged 55 or more who pledged the property in order to set aside the retirement sum refunds the pledged amount as well.

None of this money leaves the seller's ownership. It moves from the flat back into the member's own CPF accounts. Which account depends on age. Below 55, the refund goes to the Ordinary Account. From 55, it first tops up the Retirement Account to the member's required retirement sum, which the infohub article names as the Full Retirement Sum, and the balance stays in the Ordinary Account.

One group refunds less than P plus I. A member who was already 55 before 1 January 2013, and had set aside the Full Retirement Sum before that date, is not required to refund CPF savings used for the property before 2013. If that member went on using CPF savings from 1 January 2013, only the principal used from that date and its accrued interest are refunded.

The CPF Board's refund page does not print the interest rate behind I; it refers to its page on interest rates. That page, last updated on 15 September 2026, gives the Ordinary Account rate as 2.5% per annum from 1 October to 31 December 2026 and says the rate is reviewed every quarter. It does not itself say that accrued interest on housing withdrawals is computed at that rate; the link rests on the service guide's wording about interest the savings could have earned in the Ordinary Account. A seller does not need the rate to know the figure. The Home ownership dashboard in the member's online CPF account has a section called "What Happens If", and it shows the amount that would have to be refunded if the property were sold now. A member can also shrink the figure ahead of a sale with a voluntary housing refund, which the infohub article describes as repaying in cash the CPF savings used for the purchase.

Estimating the sale proceeds

The order of the deductions is given by the government's service guide. The proceeds first pay off the outstanding housing loan. Next comes the CPF refund. Then come the remaining costs: the guide names legal fees and property tax, and says they "could cost you close to S$3000". It also lists the resale levy among the costs to consider.

A worked example shows the sequence. The figures are illustrative, not market data. Assume a flat sold for S$600,000, an outstanding housing loan of S$200,000, CPF principal of S$150,000 and accrued interest of S$40,000 as shown on the owner's dashboard, and other costs of S$3,000.

The seller in this example leaves completion with S$207,000 in cash and S$190,000 back in a CPF account. Together they make S$397,000, which is the price less the loan and the S$3,000 of costs. Looking at the cash alone understates what the sale returned; looking at the price alone overstates what can be spent.

For a seller of 55 or more the split differs, though the total does not. The S$190,000 would first fill the Retirement Account up to the required retirement sum, with the rest staying in the Ordinary Account. The CPF Board adds that Retirement Account savings above the Basic Retirement Sum can be used for the next purchase of a 3-room or smaller HDB flat on three conditions: the flat is bought within three years of the sale, it costs less than the price the old property sold for, and no CPF LIFE plan has yet been issued to the member.

The service guide also links to the Inland Revenue Authority of Singapore's stamp duty calculator. Whether seller's stamp duty arises on a given sale is a question for that calculator and for the rules of that duty, which this guide does not cover.

When the price does not cover the refund

A flat can sell for less than the loan and the full CPF refund added together. The CPF Board's page deals with the case directly.

Where the property is sold at market value and the price does not cover both, the member refunds to CPF the selling price less the outstanding housing loan. The loan is paid in full; CPF receives what remains. The gap between that sum and P plus I does not have to be found in cash.

A second worked example, again with illustrative figures: a flat sold at market value for S$400,000, an outstanding loan of S$250,000, and a full refund of S$180,000 in principal and accrued interest. The price less the loan is S$150,000. That is the amount refunded to CPF. The shortfall against the full refund is S$30,000, and under the Board's rule it is not topped up in cash. The seller receives no cash from the sale. If an option fee of S$1,000 was taken in cash at the start, it forms part of the S$400,000 and so of the S$150,000 due to CPF, and it has to be paid in before the transaction can be completed.

The condition attached to the rule is the phrase "at market value". The Board's page states the relief for sales at market value and does not describe, in the passage read, what follows from a sale below it.

What the pages read do not settle

Several figures a seller will want were not available from the official pages that could be opened for this article, and are left out sooner than taken from memory or from secondary sites.

The resale levy is the main one. The government's service guide lists it among the costs of selling, without an amount and without saying who pays it or when. HDB's own page on the levy could not be opened. The levy is therefore a line left blank in the proceeds table above: this guide cannot say what it amounts to or which sellers it concerns.

The others are narrower: the percentage limits of the Ethnic Integration Policy and the SPR quota for blocks and neighbourhoods; the length of time an Intent to Sell stays valid; HDB's administrative fee for the resale application; and the maximum length of a temporary extension of stay. The 21-day option period and the option fee ceiling are confirmed by HDB's notes updated on 7 September 2026. The 7-day window for the second party to file the application rests on the service guide alone, which is dated 24 November 2022, so that figure carries that date.

What the sources do settle is the order of the questions. Eligibility comes before price: the occupation period and the quotas decide whether, and to whom, a flat can be sold. The loan and the CPF refund come before cash: they decide how much of the price can be spent.

A flat's selling price is shared three ways: the lender is repaid, the seller's own CPF account is refilled, and only the remainder arrives as cash.

Kooky, from Shaka

Kooky edits Agents Estate and builds Shaka, the payment router he made for real estate professionals. One payment comes in, and every agent, agency and party in the deal receives their signed share on closing date.

About Kooky and Shaka →