This article was contributed to us by Sebastian Sieber, Founder of Cashew.sg
If you are thinking about upgrading to a better home, chances are you have already spent hours scrolling through listings, comparing floor plans, and mentally decorating your next living room. That is the fun part. The less fun part is figuring out what actually happens to your money when you sell your current property and buy a new one.
It is a process that looks deceptively straightforward on the surface: sell the old place, take the profits, put them toward the next one. But when you sit down and trace where each dollar actually goes, most people discover gaps they did not expect. The sale proceeds are smaller than they thought. The loan they qualify for is lower than they assumed. And the cash they need upfront is higher than they planned for.
This article is for the upgrader who is actively planning a move but has not yet done the detailed math. If that is you, I would encourage you to read this.
Where Your Sale Proceeds Actually Go
When you sell your property, the sale price is not your profit. It is not even close. The money flows through a very specific sequence before anything reaches your hands, and understanding that sequence is the first step toward planning a realistic upgrade.
The first deduction is your outstanding mortgage. Your existing home loan must be fully redeemed from the sale proceeds. If you owe $400,000 on a property selling for $1.2 million, that $400,000 is paid directly to the bank first. On top of the principal balance, you will also need to cover any early redemption penalties if your loan’s lock-in period has not expired, along with the bank’s legal and administrative fees for the discharge of the mortgage. These costs are not always large, but they are real, and they shrink your net proceeds.
Then comes the transaction costs. You will need to pay your property agent’s commission, legal fees for the conveyancing, and potentially Seller’s Stamp Duty (SSD) if you are selling a private property within the four-year holding period. These can easily add up to $30,000 to $50,000 or more, depending on the property price.
Only after these deductions do you arrive at what many people consider their “profit.” But there is another major deduction waiting, and it is the one that catches most people off guard.
The CPF Refund WITH interest: The Number Most People Underestimate
If you used your CPF Ordinary Account (OA) savings to pay for your property, whether for the down payment, monthly mortgage instalments, stamp duties, or legal fees, every dollar must be returned to your CPF OA upon sale. And not just the principal amount. You must also refund the accrued interest: the amount those savings would have earned had they remained in your OA at the prevailing rate of 2.5% per annum. The practical impact on upgraders can be significant.
Here is why. CPF accrued interest compounds monthly. If you withdrew $200,000 from your OA five years ago, you are not just returning $200,000. You are returning approximately $226,000 or more, depending on the exact timing of your withdrawals. The longer you have held the property and the more CPF you used, the larger this refund becomes. For homeowners who purchased a decade ago and have been servicing their mortgage through CPF throughout, the accrued interest component alone can run into tens of thousands of dollars.
What makes this especially tricky for upgraders is that this money goes back into your CPF, not into your bank account. You can use it for your next property purchase, subject to the applicable CPF housing usage rules, but you cannot use it as cash for a down payment on a condo, for renovation, or for any other non-housing expense.
The result is that many upgraders are shocked to find their “cash proceeds” from the sale are far less than the headline profit would suggest. A $300,000 paper gain can easily translate into $100,000 or less in liquid cash once the mortgage, CPF refund, and transaction costs are accounted for.
If you are over 55, the maths shifts further. Your CPF housing refunds will first be used to top up your Retirement Account (RA) to the Full Retirement Sum before any balance remains in your OA. This means even less of your CPF money is immediately available for your next property.
My strong recommendation: before you commit to any purchase, log in to your CPF account via Singpass and check your Home Ownership Dashboard. It shows you the exact principal and accrued interest you would need to refund if you sold today. Do not estimate. Look at the actual number.
Read Also: Here’s What You Need To Know About Pledging Your Property To Meet The CPF Full Retirement Sum (FRS)
The Loan Eligibility Gap: Why Your New Mortgage May Be Smaller Than You Expect
This is the second area where upgraders tend to get a rude shock. Many assume they will qualify for the same loan quantum (or more) on their next property as they did on their first. In practice, the opposite often happens.
There are three main reasons your borrowing power may have shrunk since you last took out a mortgage.
The TDSR framework has tightened. The Total Debt Servicing Ratio, set by the Monetary Authority of Singapore (MAS), caps your total monthly debt obligations at 55% of your gross monthly income. This limit was reduced from 60% in December 2021. If you bought your first property before that change, you were assessed under more generous borrowing rules. Your new loan will be assessed under the current, tighter framework. On top of that, banks are required to stress-test your loan eligibility at a minimum interest rate of 4% per annum, regardless of the actual rate you will be paying. If you have a car loan, credit card debt, or any other monthly obligations, these eat into your TDSR headroom, reducing the mortgage amount you can qualify for.
Your age works against you. The maximum loan tenure for bank loans is 30 years for HDB flats and 35 years for private properties, but there is a catch: if your age plus the loan tenure exceeds 65 years, your Loan-to-Value (LTV) ratio drops from 75% to 55%. That means instead of borrowing 75% of the property value, you can only borrow 55%, and your required down payment jumps accordingly. A 35-year-old upgrader buying a private property can get a 30-year loan at 75% LTV (age 35 + 30 years = 65). A 40-year-old taking the same 30-year tenure finds their LTV capped at 55% because the loan extends to age 70, which exceeds the threshold. The difference in borrowing power is substantial.
Your LTV limit drops if you have an existing outstanding loan. If you’re purchasing your next property while your existing loan is still active (if you buy before you sell), the LTV ratio on your second loan drops significantly. Even if you plan to sell your current property soon after, the bank assesses your eligibility based on the number of outstanding loans at the time of application.
The combined effect of these rules means that many upgraders, especially those in their 40s and 50s, discover a meaningful gap between what they assumed they could borrow and what the bank is willing to lend. If your income has not grown proportionally since your last purchase, or if you have taken on additional financial commitments, the gap can be uncomfortably wide.
Bridging the Gap: What You Can Do
None of this means upgrading is a bad idea. It just means you need to plan for it with clear-eyed numbers rather than optimistic assumptions.
First, run the sale proceeds calculation honestly. Take a haircut on your expected sale price (the asking price on PropertyGuru is almost always above what will realistically be achieved), then subtract the outstanding loan, CPF refund (principal plus accrued interest), agent commissions, legal fees, and any applicable SSD. What’s left is your actual working capital for the next purchase.
Second, get an In-Principle Approval (IPA) from a bank before you start viewing properties. An IPA tells you exactly how much you can borrow based on your current income, age, existing debts, and the TDSR framework. It is the single most useful reality check available.
Third, consider the timing of your sale and purchase carefully. Selling first gives you the advantage of having no outstanding loan, which means you qualify for the higher LTV tier on your next purchase. But it also means you may need temporary housing. Buying first gives you certainty about your next home but may lock you into a lower LTV and higher down payment. There is no universally right answer, but there is a right answer for your specific financial situation.
Read Also: Selling Your Home Before Buying The Next One: 8 Things That Can Go Wrong In Singapore
Why This Matters More Than Most People Think
For most people, property is their biggest financial investment. An upgrade is not just a lifestyle decision; it is a financial restructuring that involves hundreds of thousands of dollars in loan obligations, CPF flows, and cash commitments. Getting the numbers wrong by even a small margin can mean scrambling for cash at the last minute, overstretching on a mortgage you can barely service, or worse, having a deal fall through because financing did not come together.
At Cashew.sg, we built our platform specifically because we saw too many homeowners making these decisions without clear, unbiased information. Cashew is a digital mortgage platform that helps homeowners compare home loan packages across banks, check whether refinancing makes sense, and understand their true borrowing position before committing to a purchase. You can enter your loan details, and our tools will surface better options if available. When you are ready to move forward, our mortgage advisors handle the paperwork and bank submissions to keep the process smooth.
I am not saying any of this to make upgrading sound scary. I am saying this because people who plan well tend to upgrade successfully, while those who rely on rough estimates tend to get caught out.
So before you fall in love with that corner unit, sit down with the numbers.
Sebastian Sieber is the Founder of Cashew.sg, a digital mortgage platform in Singapore that uses AI and automation to help homeowners find and secure the right home loan. This article reflects the author’s personal views and does not constitute financial advice.
Photo Credit: DollarsAndSense/Siah Wei Heng
