Selling and buying HDB flats at the same time? Estimate your cash proceeds, CPF recycling, and funding feasibility for a smooth transition in 2026.
💡 This tool generates results automatically using standard methods and your input data. Please review outputs carefully and verify important information when necessary.
🔄 How to Use the HDB Contra Scheme Flow Calculator (2026)
Enter Selling Details
Start by inputting the sale price of your current flat. Our tool will factor in your outstanding loan and CPF refund (including accrued interest) to determine your net cash proceeds.
Provide Purchase Info
Enter the purchase price of your new HDB flat and your projected new loan amount. This helps the calculator understand the total funding required for your next home.
Factor in CPF Recycling
The tool automatically applies the "Contra" logic by channeling the CPF refund from your sale directly into your purchase, reducing your immediate cash outlay and loan requirement.
Analyze Flow Feasibility
Review the real-time dashboard to see if your plan is feasible. If a shortfall is detected, you can adjust your loan amount or purchase price to balance the transaction flow.
🏠 HDB Contra Scheme: The Ultimate Guide to Seamless Property Transition in 2026
Selling your current HDB flat while simultaneously buying a new one is often compared to performing a high-wire act. You need to time the sale perfectly so that you aren't left homeless, but you also need the funds from that sale to pay for your next home. In 2026, as the Singapore property market remains dynamic, the HDB Contra Scheme serves as the ultimate safety net for homeowners looking for a smooth transition.
Most people think property transactions are linear—sell first, get the money, then buy. But the Contra scheme allows you to "recycle" your funds in real-time. It’s a financial shortcut that reduces your cash outlay and bridge loan requirements. However, "pro-level" planning requires more than just knowing the scheme exists; it requires mastering the math behind the flow.
The "Magic" of CPF Recycling in the Contra Scheme
The biggest hurdle in a standard HDB transaction is the waiting period. When you sell a flat, your CPF refunds (including that pesky accrued interest) usually take a few weeks to return to your Ordinary Account. Without Contra, you might find yourself in a "cash-dry" spot where you need to pay for your new flat before your sale proceeds are ready.
Under the Contra Scheme, HDB allows the CPF refund from your sold flat to be used immediately for the purchase of your next flat. This is a game-changer. It means you can maximize your downpayment and potentially take a smaller loan. To see how a larger downpayment affects your long-term debt, you should run your numbers through our HDB Mortgage Interest Calculator to see the interest savings over 20-25 years.
Calculating the Cash Flow: Proceeds vs. Shortfalls
One common mistake homeowners make is overestimating their "Cash Proceeds." Just because you sold your flat for $600,000 doesn't mean you have $600,000 in your pocket. You have to subtract the outstanding bank or HDB loan, the CPF principal used plus accrued interest, and various transaction fees.
Before you commit to a new purchase price, use our HDB Loan Eligibility (HLE) Calculator. This will give you a realistic ceiling for your next home. If our Contra Flow tool shows a shortfall, it’s a signal that you either need to lower your buying price or find ways to increase your cash reserves, perhaps by checking if you qualify for any CPF Housing Grants.
Hidden Costs: Stamp Duties and Legal Fees
In the excitement of a Contra move, don't let the "hidden" costs sneak up on you. Even if your cash proceeds look healthy, you are still liable for Buyer’s Stamp Duty (BSD) and potentially **Additional Buyer’s Stamp Duty (ABSD)** if the timing isn't perfect. These are often required in cash or CPF upfront.
We highly recommend using our HDB Stamp Duty Calculator alongside this Contra tool. Knowing whether you need $15,000 or $25,000 for stamp duties can be the difference between a successful application and a rejected one. Remember, HDB legal fees and agent commissions (usually 1-2%) also eat into your final "take-home" cash.
The 45-Day Rule and Interest Logic
Timing is everything. In a Contra application, the resale applications for both the sold and bought flats must be submitted together. If there’s a delay in one, the whole "Contra flow" can collapse. This is similar to how the IRS manages tax timelines; if you’re interested in how the government calculates interest on late refunds, check out our IRS Tax Refund Interest Calculator—it’s a great example of how compounding interest works against you when timelines shift.
Strategy for 2026: Is Contra Right for You?
Contra isn't for everyone. It’s specifically for those moving from one HDB flat to another HDB flat. If you are upgrading to a private condo or downscaling from a landed property, the rules change significantly. Furthermore, both your buyer and your seller must also agree to the Contra arrangement, making it a three-party "handshake."
If you find that the Contra math is too tight, you might consider the HDB Resale Portal steps carefully or look into a temporary bridging loan. However, for most Singaporean families, the Contra Scheme remains the most cost-effective way to upgrade their lifestyle without taking on massive external debt.
Final Tip: Always keep a "Buffer Fund" of at least $10,000 to $20,000 in cash. No matter how accurate a calculator is, miscellaneous costs like renovation deposits, valuation fees, and administrative charges always pop up. Master the math today, and enjoy your new home tomorrow!
❓ HDB Contra Scheme (2026) – Frequently Asked Questions
1. What exactly is the HDB Contra Scheme?
The HDB Contra Scheme is a financial arrangement that allows you to sell your current HDB flat and buy another one simultaneously. It enables you to "recycle" the CPF funds and cash proceeds from your sale to pay for your new flat immediately, reducing the need for large cash outlays or bridging loans.
2. Who is eligible for the Contra Scheme?
Only Singapore Citizens and Permanent Residents moving from one HDB flat to another HDB flat are eligible. You cannot use Contra if you are buying a private property or if one of the transactions involves a bank loan instead of an HDB loan.
3. Can I use Contra if I am taking a Bank Loan?
No. The HDB Contra Scheme is strictly for those taking an HDB concessionary loan. If your new home purchase is financed by a bank, you will have to follow the standard sale-then-buy timeline.
4. Does Contra help with Buyer’s Stamp Duty (BSD)?
Yes, because the CPF from your sold flat is redirected quickly, you can often use those funds to cover the Stamp Duty for the new flat, provided the timing of the applications is synchronized.
5. What is the "Three-Party" requirement in Contra?
A Contra transaction involves three parties: the buyer of your current flat, you (the seller/buyer), and the seller of the flat you are buying. All three parties must submit their resale applications correctly for the flow to work.
6. Can I use Contra for a BTO flat?
No, the Contra Scheme is specifically designed for HDB Resale-to-Resale transactions. BTO flats have different payment timelines managed by HDB's staggered payment scheme.
7. What happens to my accrued interest in a Contra move?
The accrued interest is "refunded" to your CPF OA from the sale proceeds and then immediately made available to pay for the new flat. It stays within the CPF ecosystem throughout the process.
8. Is there a limit to how many times I can use Contra?
There is no specific limit on the number of times you can use it in your lifetime, but each transaction must meet the prevailing HDB eligibility and loan criteria at that time.
9. Will I still need a bridging loan if I use Contra?
In most successful Contra cases, a bridging loan is not required because the funds are transferred "back-to-back." This is one of the biggest cost-saving benefits of the scheme.
10. Can I do a "Double Contra"?
No. HDB rules state that in a single transaction chain, only one party (either the buyer or the seller) can be "the party using Contra." You cannot have a chain where everyone is using Contra.