Guide
Sell HDB Buy Condo — Complete Step-by-Step Guide
You've done the math, checked the calculators, and the numbers say you can afford to upgrade. Now comes the harder question: how do you actually get from HDB to condo? This guide walks through the entire journey — every step, every decision point, every cost — so you know exactly what to expect.
Quick answer: Selling your HDB first and then buying a condo is the safest and most common path. It takes 8-10 months, avoids 20% ABSD, and gives you certainty on your budget. The total transaction costs (both sides) run $80K-$120K on a typical $600K HDB to $1.5M condo upgrade. The biggest wildcard is the CPF clawback — make sure you calculate it before anything else.
Sell first vs buy first — the $300K decision
This is the single biggest decision in the upgrade process. It affects your ABSD exposure, your cash flow, your stress level, and your negotiating power. There's no universally right answer, but for most upgraders, selling first is the smarter move.
| Sell First | Buy First | |
|---|---|---|
| ABSD | 0% (buying as 1st property) | 20% upfront ($300K on $1.5M) |
| LTV | 75% (lower down payment) | 45% (55% down payment) |
| Cash needed | ~$75K (5% of $1.5M) | ~$675K (45% of $1.5M) |
| Budget certainty | Know exact sale proceeds | Guessing sale price |
| Housing gap | 3-6 months rental needed | No gap — move directly |
| Stress level | Moderate (temporary move) | High (need to sell within 6 months for ABSD refund) |
| Best for | Most upgraders | Cash-rich buyers who hate moving twice |
The ABSD trap: If you buy a $1.5M condo while still owning your HDB, you pay $300,000 in ABSD upfront. You can get it back — but only if you sell your HDB within 6 months and apply for remission. That's $300K of your cash tied up for months, and you're racing a deadline to sell. Most agents and bankers will tell you it's fine. It is — until it isn't.
Step 1: Know your numbers (before listing)
Before you call an agent, before you browse condos, you need three numbers nailed down. Everything else flows from these.
1. Your net cash from the HDB sale
This is what you walk away with in your bank account. Not the sale price — the sale price minus everything that gets deducted.
Worked example: selling a $600K 4-room HDB
Sale price: $600,000
Outstanding loan: -$180,000
CPF refund (principal): -$150,000
CPF accrued interest (10yr): -$40,000
Agent commission (2%): -$12,000
Legal fees: -$2,500
Cash to bank: $215,500
CPF OA refund: $190,000
Get your exact number: Use our CPF Accrued Interest Calculator to find your real clawback amount, then run the full picture in the pipeline calculator.
2. Your maximum borrowing power
TDSR limits your total monthly debt repayments to 55% of your gross income, stress-tested at 4% interest rate. Your age also matters — it caps your loan tenure.
| Combined Income | Max Loan (25yr) | Max Condo (75% LTV) |
|---|---|---|
| $8,000 | $690,000 | $920,000 |
| $10,000 | $860,000 | $1,150,000 |
| $12,000 | $1,030,000 | $1,370,000 |
| $15,000 | $1,290,000 | $1,720,000 |
| $18,000 | $1,550,000 | $2,060,000 |
Assumes no other debt, age 35, 4% stress test. Existing car loans, credit card debt, etc. reduce these numbers significantly.
3. Your total cash needed at closing
The purchase price is just the start. Here's what you actually need in cash on the buying side.
| Condo Price | 5% Cash Down | BSD | Legal | Total Cash |
|---|---|---|---|---|
| $1.0M | $50,000 | $24,600 | $3,500 | $78,100 |
| $1.2M | $60,000 | $32,600 | $3,500 | $96,100 |
| $1.5M | $75,000 | $44,600 | $4,000 | $123,600 |
| $2.0M | $100,000 | $69,600 | $4,500 | $174,100 |
SC buying 1st property. BSD payable via CPF OA. 5% cash down cannot use CPF. Excludes renovation ($30K-$80K).
Step 2: Understand the CPF clawback
This is the number that catches people off guard. When you sell your HDB, CPF takes back everything you used — down payment, monthly mortgage payments, grants — plus 2.5% accrued interest on all of it. That money goes back into your CPF OA, not your bank account.
The good news: it's back in your CPF OA, so you can use it for the condo down payment (up to 20%) and mortgage. The bad news: it dramatically reduces the cash you pocket from the sale.
| CPF Used | Years Owned | Accrued Interest | Total Refund |
|---|---|---|---|
| $100K | 5 years | $13,100 | $113,100 |
| $150K | 8 years | $32,600 | $182,600 |
| $200K | 10 years | $56,000 | $256,000 |
| $250K | 12 years | $86,300 | $336,300 |
| $300K | 15 years | $136,800 | $436,800 |
Includes lump sum down payment + cumulative monthly mortgage payments from CPF. Actual amounts depend on timing of each withdrawal.
Don't guess this number. Use the CPF Accrued Interest Calculator with your actual CPF usage to get the real figure. The difference between a rough estimate and the real number can be $20K-$50K.
Step 3: Stamp duty — BSD and ABSD
Every condo purchase triggers Buyer's Stamp Duty (BSD). If you still own your HDB when you buy, you also pay Additional Buyer's Stamp Duty (ABSD) — and the difference is massive.
| Condo Price | BSD Only (sell first) | BSD + 20% ABSD (buy first) | Difference |
|---|---|---|---|
| $1.0M | $24,600 | $224,600 | $200,000 |
| $1.2M | $32,600 | $272,600 | $240,000 |
| $1.5M | $44,600 | $344,600 | $300,000 |
| $2.0M | $69,600 | $469,600 | $400,000 |
SC buying. ABSD of 20% applies when buying 2nd residential property. Remission available if existing property sold within 6 months.
Calculate your exact stamp duty: Stamp Duty Calculator — shows BSD + ABSD for any buyer profile and price.
Step 4: TDSR — make sure the bank says yes
TDSR (Total Debt Servicing Ratio) caps your total monthly debt repayments at 55% of your gross monthly income. Banks must use a 4% stress test rate — not your actual rate — when calculating your maximum loan. This is the government's way of making sure you can handle rate increases.
The formula is simple: Max monthly payment = Income x 55% - existing debts. A $500/month car loan doesn't just cost you $500 — it reduces your max condo loan by roughly $80,000.
Real example: couple earning $12,000/month
TDSR limit: $12,000 x 55% = $6,600/month available for all debts
Car loan payment: -$800/month
Available for mortgage: $5,800/month
Max loan (25yr, 4% stress): $965,000
Max condo (75% LTV): $1,290,000
Without the car loan, max condo jumps to $1,430,000. That $800/mo car loan cost them $140K in buying power.
Check your max loan: TDSR Calculator — plug in your income and debts to see your exact borrowing limit.
Step 5: Bridging loans — do you need one?
A bridging loan covers the gap when your condo purchase completes before your HDB sale. It's a short-term loan (6-12 months) at higher interest rates (5-6% p.a.) that gets repaid when your HDB sale completes.
Most sell-first upgraders don't need one. If you sell your HDB first and complete the sale before buying the condo, there's no gap to bridge. Bridging loans are mainly for buy-first buyers or when timelines accidentally overlap.
| Bridging Amount | Monthly Interest (5.5%) | Cost for 3 Months | Cost for 6 Months |
|---|---|---|---|
| $200K | $917 | $2,750 | $5,500 |
| $300K | $1,375 | $4,125 | $8,250 |
| $500K | $2,292 | $6,875 | $13,750 |
Interest-only payments during bridging period. Principal repaid on HDB sale completion.
The complete timeline: month by month
Sell-first path. Based on a $600K HDB sale followed by a $1.5M resale condo purchase.
Month 0 — Preparation
• Calculate your CPF clawback using the CPF Accrued Interest Calculator
• Run the pipeline calculator to find your max condo budget
• Get In-Principle Approval (IPA) from 2-3 banks for the condo loan
• Engage an HDB resale agent (1-2% commission, you pay as seller)
Cost: $0 (IPA is free, agent paid on completion)
Month 1-2 — List and sell your HDB
• Get HDB valuation
• List the flat, arrange viewings
• Negotiate and grant Option to Purchase (OTP) to buyer
• Buyer exercises OTP within 21 days
Time: 4-8 weeks depending on market
Month 3-4 — HDB resale completion
• HDB processes the resale application (4-8 weeks)
• Pre-completion inspection
• Completion day: loan discharged, CPF refunded, cash released
• Move out — into rental or parents' home
Cash released: ~$215K (from $600K example above)
CPF OA refund: ~$190K
Month 4-5 — Temporary housing + condo search
• Rent a flat or room ($2,000-$4,000/month)
• Start serious condo viewing — you now know your exact budget
• Compare options using the affordability calculator
• Shortlist 3-5 units, negotiate
Cost: $2,000-$4,000/month rent + $1,200-$2,400 agent fee
Month 5-6 — Exercise OTP on condo
• Receive OTP from seller (pay 1% option fee — $15,000 on $1.5M)
• Exercise within 14 days (pay 4% exercise fee — $60,000)
• Engage conveyancing lawyer ($3,000-$4,000)
• Bank valuation and formal loan approval
• Pay BSD within 14 days of exercise ($44,600 on $1.5M)
Cash outflow: ~$123,600 (option + exercise + BSD + legal)
Month 7-8 — Condo completion + move in
• Conveyancing process (8-10 weeks from exercise)
• Final payment: remaining down payment (20% from CPF — $300,000)
• Bank disburses loan (75% — $1,125,000)
• Collect keys
• Renovation begins (8-12 weeks, $40K-$80K)
First mortgage payment: ~$4,200/month at 3.5% on $1.125M, 25yr
Month 9-10 — Settled
• Move in after renovation
• Set up GIRO for mortgage, maintenance fees, property tax
• Apply for owner-occupied property tax rate
Monthly costs: ~$4,200 mortgage + $400 maintenance + $150 property tax = ~$4,750
Total cost of upgrading: the full picture
Here's every dollar you spend in the transition from a $600K HDB to a $1.5M condo. These are the transaction costs — separate from your down payment and loan.
Complete cost breakdown
Selling side
Agent commission (2%): $12,000
Legal fees: $2,500
Subtotal: $14,500
Buying side
BSD stamp duty: $44,600
Legal fees: $4,000
Valuation: $350
Subtotal: $48,950
Transition costs
Temporary rental (3 months): $9,000
Moving (2 moves): $1,500
Short-term storage: $1,200
Subtotal: $11,700
Setup costs
Renovation: $60,000
Furniture & appliances: $15,000
Subtotal: $75,000
TOTAL TRANSACTION COSTS: $150,150
That's $150K on top of the price difference between your HDB and condo. Most upgraders budget only for the down payment and forget half of this list.
5 mistakes that cost upgraders money
1. Underestimating CPF clawback. Your HDB “profit” is not the sale price minus what you paid. CPF takes back everything with interest. Use the calculator — the real number is always higher than people think.
2. Not getting IPA before house-hunting. You find the perfect condo, rush to exercise OTP, then discover the bank won't lend that much. Get 2-3 IPAs first. It's free and takes 3 days.
3. Forgetting transition costs. Temporary rental ($6K-$12K), double moving ($1,500), storage ($1,200), eating out more, and disruption costs. These add up to $10K-$20K that nobody budgets for.
4. Racing the 6-month ABSD deadline. Buying first to “avoid the rental hassle” means paying 20% ABSD upfront and needing to sell your HDB within 6 months for remission. If the market slows or your flat takes longer to sell, you're stuck with a $200K-$400K ABSD bill.
5. Not stress-testing the monthly payment. Your condo payment at 3.5% feels manageable. At 4.5%? At 5%? Check what happens when rates rise — our mortgage calculator shows the stress test comparison side by side.
Run your upgrade numbers
The pipeline calculator connects everything — HDB equity, CPF clawback, borrowing power, stamp duty, and monthly payment. One flow, 5 minutes, real numbers for your specific situation.
Run My NumbersFAQ
How long does it take to sell HDB and buy a condo?
The sell-first path takes about 8-10 months end to end. Selling your HDB takes 3-5 months (listing to completion), followed by 2-4 months renting while you search for and complete a condo purchase. The buy-first path can overlap timelines but requires paying 20% ABSD upfront.
Can I sell HDB and buy condo at the same time?
Technically yes, but it means buying your second property while still owning the HDB. As a Singapore Citizen, that triggers 20% ABSD on the condo purchase. You can get a remission if you sell the HDB within 6 months. On a $1.5M condo, the ABSD is $300,000 — you need that cash upfront.
How much CPF clawback when selling HDB to buy condo?
You must refund all CPF used for the HDB (down payment + monthly mortgage + grants) plus 2.5% accrued interest. A couple who used $200K from CPF over 10 years would refund about $256K. This goes back to your CPF OA — you can use it for the condo, but it reduces your cash walkaway.
Do I need a bridging loan when selling HDB to buy condo?
Only if you buy the condo before completing the HDB sale and need the sale proceeds for the condo down payment. Bridging loans cost 5-6% p.a. and last 6-12 months. Most upgraders avoid this by selling first. If timelines overlap by just a few weeks, some banks offer short bridging facilities.
What happens to my HDB loan when I sell?
Your outstanding HDB loan is fully repaid from the sale proceeds on completion day. The balance after loan repayment, CPF refund, and fees is your cash walkaway. If you have a bank loan on your HDB, the same applies — the bank discharges the mortgage on completion.
Can I use my HDB sale proceeds for condo down payment?
Yes — the cash portion. After selling, your proceeds split into: cash (goes to your bank account) and CPF refund (goes back to CPF OA). The cash is yours to use freely. The CPF OA funds can be used for the condo down payment and mortgage, subject to Valuation Limit and withdrawal limits.
Related Tools & Guides
- Pipeline Calculator — HDB equity to condo payment in one flow
- CPF Accrued Interest Calculator — find your exact CPF clawback amount
- Stamp Duty Calculator — BSD + ABSD for your buyer profile
- TDSR Calculator — max borrowing power from income and debts
- Should You Upgrade from HDB to Condo? — the decision framework before you start
- How Much Cash to Buy a Condo — every dollar beyond the price
- Sell HDB Buy Condo Timeline — quick answer version
- Sell First or Buy First? — the short version of the ABSD decision
Last updated Feb 2026. This guide covers the sell-first upgrade path for Singapore Citizens. Process may differ for PRs and buy-first scenarios. Not financial advice.