What it costs to buy an HDB resale flat, beyond the price

The median HDB resale over the published window went for S$630,000, and that is not what the purchase costs. Seven other items land on a resale, and the useful thing to understand is not their size but their behaviour: which must be paid in cash, which may come from retirement savings, and which only exist for some buyers.

This article does not print tax rates. They are tiered, they change by announcement, and this network does not publish a rate it has not read at source. Every rate is linked below and the links are the authority.

Which costs scale with the price?

Buyer’s Stamp Duty is charged on the higher of the price and the valuation, in tiers, so it rises faster than the price at the top. It may generally be met from retirement savings, but if the funds are not in place at the right moment it must be paid in cash and reimbursed, which is a cash-flow problem rather than a cost.

Additional Buyer’s Stamp Duty applies by residency status and by how many residential properties the household already owns. For a citizen household buying its only home it is typically not in play; for anyone else it can be the largest single item on the page by a wide margin. It is the one cost where the buyer’s circumstances matter more than the flat.

Which cost only appears the second time?

The resale levy applies to households that previously bought a subsidised flat from the state and are buying a second subsidised one. It is not charged on a resale bought on the open market without a grant, which is precisely why it is so often misjudged: whether it applies at all depends on the history of the household rather than on this transaction.

Anyone who has owned a flat before should establish this before making an offer, not after. It is the largest avoidable surprise in the whole process.

Which costs do not scale at all?

• The valuation. A resale needs one, and it sets the ceiling on what may be financed. Where the agreed price exceeds it, the difference is cash. This is the mechanism behind the phrase “cash over valuation”, and in a rising market it is the item that decides whether a purchase is possible.
• Legal fees. A conveyancing solicitor, or the housing authority’s own service where eligible, which is usually cheaper and less flexible.
• Agent commission, where an agent is engaged. Negotiable, and quoted as a percentage, so it does scale in practice even though nothing requires it to.
• Administrative fees for the resale application itself, plus the small costs of moving.

Which distinction actually matters here?

Not the total. The split between what can come from retirement savings and what must be cash. A household can be comfortably able to afford a flat on paper and unable to complete it, because the cash items and the valuation gap land at once and savings cannot cover them.

The practical sequence is: establish whether the levy applies, get the valuation position clear before agreeing a price, and then work out the cash requirement separately from the total. The deposit is not an expense at all, it becomes equity, and mixing it into the same figure is how budgets go wrong.

What comes before any of this?

Check whether the price itself is reasonable, because a good negotiation is worth more than every fee here combined. That means the median for the district, the flat type and the lease band, in that order: how to read a rate against the right local market is the method, and what a 4-room costs is the starting benchmark for most buyers.

The median price above is read live from the published register and is current to August 2026. Every rate in this article lives with the authority that sets it, and the sources below carry the date each was last checked.