Buying process guide
By Winfred Quek, Associate Marketing Consultant · CEA R073319H · Crestbrick Pte Ltd (L31010886H) · Published 13 July 2026
Facts verified: 13 July 2026 · Portal steps and timelines can be updated by HDB, always check the live portal · Sources attributed below
The HDB Resale Portal exists to remove the friction that used to define buying or selling a resale flat, the repeated branch visits, the paper forms, the uncertainty about what stage your case was at. What it has not removed is the underlying process itself, which still has real steps, real documents and real deadlines. Knowing what the portal actually asks for, and in what order, is the difference between a transaction that moves smoothly and one that stalls because a document was missing or a step was done out of sequence.
Before the portal: the HFE letter
The first practical step in any HDB resale purchase happens before you ever submit anything through the resale side of the portal. Buyers need a current Home Financing Eligibility letter, which replaced the older HDB Loan Eligibility letter and now applies whether you are financing with an HDB loan or a bank loan. The HFE letter confirms your eligibility to buy an HDB flat and indicates the loan quantum you may qualify for, and it is generally required before you can proceed with granting or accepting an Option to Purchase. Applying for this letter, and gathering the income and CPF documents it requires, is worth starting well before you begin serious viewings, since waiting until you have already found a flat only adds pressure to a process that has its own processing time.
Steps one and two: register intent, then agree terms and exercise the OTP
Once a seller has decided to sell, they register their intent to sell on the portal. Buyers similarly register intent to buy once they are seriously considering the market, which is a formal step distinct from simply browsing listings. Registering intent is how HDB begins tracking the transaction against your eligibility profile, and it is a prerequisite many sellers and buyers complete before finalising the Option to Purchase with a specific counterparty.
Agreeing terms and exercising the Option to Purchase happens largely outside the portal itself, between buyer and seller directly, but it is the trigger for everything that follows. Once price is agreed, the option fee is paid, and the buyer exercises the Option to Purchase within the option period, both parties are ready to move into the formal application stage. If you are unclear on how the option fee and exercise fee differ at this point, my guide to booking fee, option fee and exercise fee covers exactly what each payment locks in.
Step three: submit the resale application on the portal
With the Option to Purchase exercised, buyer and seller each log into the HDB Resale Portal to submit the resale application. This is where the transaction formally enters HDB's processing pipeline. Both parties upload the required supporting documents, which typically include identification, the signed Option to Purchase, and any documents relevant to eligibility, such as proof of citizenship status or existing property ownership declarations. The portal flags outstanding documents clearly, which is one of its genuine improvements over the older paper based process, where missing items could sit unnoticed for weeks.
| Stage | Who acts | What happens |
|---|---|---|
| HFE letter | Buyer | Confirms eligibility and loan quantum before committing to an Option to Purchase. |
| Register intent | Buyer and seller | Formal signal to HDB that a transaction is being pursued. |
| Exercise OTP | Buyer and seller | Contract becomes binding, off portal, between the two parties. |
| Submit resale application | Buyer and seller | Case enters HDB's formal processing pipeline through the portal. |
| Eligibility review | HDB | Checks on both parties and the flat before an appointment is scheduled. |
| Resale completion appointment | Buyer and seller | Final signing, financial completion and handover. |
Stage names and sequence are general guidance based on the current portal design and can be revised by HDB. Always follow the live prompts and requirements shown in your own portal account.
Step four: eligibility review and tracking your status
After submission, HDB reviews the eligibility of both parties and the flat itself, covering matters such as the Minimum Occupation Period for the seller, ethnic quota where applicable, and any outstanding conditions tied to the flat. This review takes time, and the portal is where both parties should check status rather than guessing or calling repeatedly. The portal shows whether documents are still outstanding, whether the case has cleared review, and once it has, when the resale completion appointment has been scheduled.
Step five: the resale completion appointment
The resale completion appointment is the final step, where the sale is formally completed. Buyer and seller attend, financial matters are settled, including CPF disbursement and loan drawdown, outstanding fees are paid, and the keys change hands. By this point almost all of the substantive work has already happened through the portal, and the appointment itself is largely the formal conclusion of a process that has been tracked digitally from the application stage onward.
For the fuller picture of what happens between exercising the option and this final appointment, including timelines and what buyers and sellers are each responsible for, see my broader guide to the HDB resale buying process.
What sellers should track alongside buyers
The portal is not just a buyer's tool. Sellers have their own set of obligations running in parallel, from registering intent to sell, to uploading their own supporting documents once the resale application is submitted, to confirming outstanding matters such as any existing HDB loan to be settled or CPF refund calculations tied to the sale. A seller who assumes the portal only needs input from the buyer's side can just as easily become the reason a case stalls in review.
Both parties are, in effect, jointly responsible for keeping the case moving. If you are selling while also buying your next home, this becomes even more important, since delays on the selling side can push back your own purchase timeline. Treat the portal status page as something to check regularly on both transactions if you are doing both at once, rather than assuming one side will simply take care of itself while you focus on the other.
Common portal mistakes worth avoiding
- Starting the HFE letter application too late. Begin gathering income and CPF documents before you start viewing flats seriously, not after you have found one.
- Assuming a submitted document was accepted. Check the portal for confirmation, not just an upload receipt, since some documents require additional verification.
- Letting one party's paperwork lag. The resale application requires both buyer and seller to submit their portions, and a delay on either side holds up the whole case.
- Not budgeting time for the review stage. The gap between submission and the resale completion appointment is not instantaneous, plan your move timeline around it rather than a fixed assumption.
Frequently asked questions
Do I need to register intent to buy before viewing flats?
You do not need to register intent to buy before viewing flats, but you should have a current Home Financing Eligibility letter, or be well on the way to obtaining one, before you commit to an Option to Purchase. Registering intent to buy on the portal is a formal step that some buyers complete once they are seriously considering specific flats, since it signals readiness and starts the clock on certain eligibility checks.
What is the HFE letter and why does the portal need it?
The Home Financing Eligibility letter replaced the older HDB Loan Eligibility letter and now applies to both HDB loan and bank loan buyers. It confirms your eligibility to buy an HDB flat and the loan amount you may qualify for, and it is generally required before you can proceed with granting or accepting an Option to Purchase, which the portal checks for as part of the application process.
How long does the resale application take once submitted on the portal?
After both buyer and seller submit the resale application through the portal, HDB reviews the eligibility of both parties and the flat before scheduling a resale completion appointment. This review and scheduling process typically takes a number of weeks, and the exact timeline can vary depending on the complexity of the case, so both parties should track status on the portal rather than assume a fixed date.
Can I track my resale appointment status online?
Yes, the HDB Resale Portal allows both buyer and seller to log in and track the status of their application, including document requirements and the scheduled resale completion appointment, without needing to call or visit an HDB branch for routine status checks.
Starting a resale purchase or sale?
The portal handles the paperwork, but the financing and timing decisions behind it are yours to get right. A Property Portfolio Analysis checks your numbers before you register intent.
Book a free analysis callSources & references
Winfred Quek is Associate Marketing Consultant at Crestbrick Pte Ltd, advising Singapore upgraders, investors and families. CEA R073319H. The information on this page is general and does not constitute financial, investment or mortgage advice. Portal steps, document requirements and timelines can be updated by HDB; always follow the live requirements shown in your own portal account and verify with HDB before making any purchasing or selling decision.