The HDB Upgrader Roadmap: From BTO to Condo

Thinking of upgrading from HDB to condo? Read this first.

A step-by-step guide for HDB owners considering their first condo. Covers timing, ABSD, CPF, and the numbers that actually matter.

Step 1 — Check your MOP

Your HDB has a 5-year Minimum Occupation Period (MOP). You can't sell it before this is up.

MOP starts from the date you collect your keys, not your BTO application date. Log into the HDB portal or dig out your key collection letter to confirm.

Step 2 — Understand ABSD

If you buy a condo before selling your HDB, you're buying it as a second property. That means 20% ABSD on the purchase price.

The simplest way to avoid it: sell your HDB first, then buy the condo. You'd be treated as a first-time buyer and pay 0% ABSD.

Step 3 — Run your CPF numbers

When you sell your HDB, whatever CPF you used for the purchase — plus accrued interest at 2.5% per year — gets refunded back to your CPF OA. This reduces your actual cash proceeds.

Check your CPF usage at my.cpf.gov.sg under "My Property" before you plan your budget.

Your real net proceeds = sale price minus outstanding loan minus CPF refund

The good news: the CPF refunded to your OA can be reused for the condo downpayment.

Step 4 — Figure out your actual budget

Don't start with the condo price. Start with what the bank will lend you.

Banks use TDSR (Total Debt Servicing Ratio), which caps your total monthly loan repayments at 55% of your gross income. Work out that number, subtract any existing loans, and that's your maximum monthly mortgage.

Other costs to factor in: Buyer's Stamp Duty, legal fees, agent commissions on your HDB sale, renovation, and moving costs. These can easily add $40K to $80K on top of the purchase price.

Step 5 — Decide your sequencing

Sell first, then buy No ABSD, and you know exactly what you have. The trade-off is you may need to rent in between. Factor in 6 to 12 months of rent when comparing this option.

Buy first, then sell More convenient, no interim rental. But you pay 20% ABSD upfront. Singapore citizens can apply for ABSD remission if the HDB sale is completed within 6 months of the condo purchase. Miss that window and you lose the remission entirely.

Quick reference

MOP duration

5 years from key collection

ABSD (SC buying 2nd property)

20%

ABSD remission window

6 months to complete HDB sale

CPF accrued interest

2.5% per year

TDSR cap

55% of gross monthly income

Max bank LTV

75% of purchase price

This guide is for general information only. Always verify details with HDB, CPF, and IRAS, and speak to a licensed agent before making any decisions.