Pillar · Buyer Guides

Guides built on worked numbers

Every guide in this section is built the same way: one consistent, fully worked numerical example that runs from the first page to the last, so the payment stages, deadlines and loan computations add up as you read — not vague ranges and "it depends".

Updated 8 Jul 2026 · By the PropertyInsider Editorial Team

The guides

Start where your decision starts

The three published guides are sequenced the way a real purchase unfolds, and they cross-reference the same worked household so the numbers connect. If you are sizing a budget, start with the TDSR guide — it converts income and existing debt into a maximum loan using the 55% threshold and the 4% stress rate, before any showflat visit anchors your expectations. If you own an HDB flat, the upgrade guide comes next: it runs the sale-proceeds waterfall (including the CPF refund most sellers forget is not cash), then combines proceeds and borrowing power into a defensible purchase budget, and weighs sell-first against buy-first sequencing with the ABSD consequences of each. And once a specific launch is in view, the new launch payment guide maps exactly when each dollar leaves — the cash-only 5% option fee, the 25%-plus-stamp-duty first eight weeks, and the instalment that quadruples between mid-construction and legal completion.

Two design principles run through all of them. First, deadlines are named, not gestured at: the 21-day OTP window, the 7-day portal rule, the 14-day stamp duty clock — because most upgrade plans fail on sequencing rather than affordability. Second, every figure is reproducible: each guide states its assumptions in a key-facts box up front and shows the computation, so you can substitute your own numbers and get your own answer. Where a guide touches live market data — package rates, launch prices — it links to the tracker pages we keep updated, like the mortgage rates table and the GLS pipeline tracker, rather than freezing a number that will age.

These guides are educational and general by design. They will tell you how the machinery works; they will not tell you what you personally should do — that depends on facts about your household no article can know. Where a decision is consequential, verify against the primary sources each guide cites (HDB, CPF Board, IRAS, MAS) and take licensed professional advice.

How these guides are maintained. Each guide carries a visible last-updated date and an update history. When rules change — duty tiers, TDSR parameters, HDB procedures — we revise the affected guide and log the change, rather than publishing a new dated article and letting the old one rot.

Talk it through with an advisor

Our research tells you what the data says. If you want to work through what it means for your own situation — budget, ABSD position, timing an HDB sale, or comparing launches against resale options — you can request a one-to-one consultation.

  • No obligation, and no pressure to transact — the first conversation is about your goals, not a product.
  • Personalised affordability and stamp-duty scenarios based on your actual numbers.
  • Launch and tender alerts for the specific projects you shortlist.

Disclosure: advisory consultations are provided by Jamus Lee (CEA Reg. No. R065771E, ERA Realty Network Pte Ltd, Licence No. L3002382K), the publisher of PropertyInsider.sg, via JamusProperty.com. This is a separate service from our editorial research and has no influence over what we publish — see our editorial policy. Submitting this form shares your details with the advisory practice; see our privacy policy.

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