Last month, Ah Ming finally saved enough for a down payment and was ready to enter the property market. He had his eye on a 5 million two-bedroom unit. After doing the math, the monthly mortgage would be around $18,000, which should be no problem given his monthly income of $45,000. But when he went to the bank to apply for a mortgage, it was unexpectedly rejected! The bank staff said he 'did not pass the stress test' and would need a guarantor or to increase the down payment. Ah Ming was completely confused: 'I can obviously afford the payments, so why does the bank say I can't?'
This situation actually occurs every day in the Hong Kong property market. Many prospective buyers think, 'If I can afford it, the loan will be approved,' but the bank's mortgage approval standards are much stricter than you might think. The stress test is the key metric banks use to assess your 'repayment ability'—it doesn’t look at whether you can afford it now, but whether you can still manage if interest rates rise significantly.
In today's article, I will use the simplest way to teach you how to do a mortgage stress test simulation by yourself, so that you know where you stand before entering the market and don't find out at the bank that 'I actually don't qualify'.
What Is a Stress Test? Breaking Down the Logic of Bank Approval
The Official Definition of Stress Testing
According to the guidelines of the HKMA, all mortgage applicants must pass a "stress test" before being approved for a mortgage. Simply put, the stress test assumes that the mortgage interest rate rises by 3 percentage points (i.e., 3%) to see whether your debt service ratio (DSR) exceeds 60%.
:::tip Expert Tips The current mainstream mortgage interest rates are about 3.625% (P mortgage) to 4.125% (H mortgage), and the stress test will calculate your "assumed payment" at 6.625% to 7.125%. :::
Two Major Checkpoints: Contribution Rate + Stress Test
When banks approve mortgages, they look at two indicators:
- Normal Contribution Ratio: Your monthly mortgage payments should not exceed 50% of your monthly income.
- Stress Test Contribution Ratio: Assuming an interest rate increase of 3%, your monthly payments should not exceed 60% of your monthly income.
Both checkpoints must be passed before you can get the mortgage approved. Many people think 'just passing the first checkpoint is enough,' but actually, the second checkpoint is the real difficulty.
Why do banks need to conduct stress tests?
After the 2008 financial crisis, banking regulators worldwide tightened mortgage approvals. The Hong Kong Monetary Authority introduced stress tests in 2010, with the purpose of:
- Protect bank asset quality: Ensure borrowers can still afford payments when interest rates rise
- Prevent a property market bubble: Avoid excessive borrowing that drives up property prices
- Protect borrowers: Prevent buyers from defaulting due to sudden interest rate hikes, ultimately leading to foreclosure by the bank
:::highlight Insider's perspective Some people may feel that stress tests are 'too strict,' but in fact, this mechanism successfully prevented a large-scale supply disruption in Hong Kong during the US interest rate hike cycle from 2015 to 2019. In the long run, stress tests are protecting you. :::
Practical Tutorial: 3 Steps to Test Your Own Pressure
Step 1: Calculate your 'normal contribution'
First, you need to know how much money you have to pay each month. Here is a simple formula:
Monthly Payment = Loan Amount × Monthly Payment Rate
For example:
- Property price: $5,000,000
- Down payment (20%): $1,000,000
- Loan amount (80%): $4,000,000
- Mortgage term: 30 years
- Interest rate: 3.625% (P mortgage)
Using a mortgage calculator, the monthly payment is about $18,260.
:::tip Quick Calculation Tool You can use the mortgage calculators on major bank websites, or search 'mortgage calculator' on Google, then enter the property price, down payment, interest rate, and term, and it will automatically calculate the monthly payment. :::
Step 2: Calculate the 'Stress Test Contribution'
Assuming the interest rate rises by 3%, from 3.625% to 6.625%, what will your monthly payment become?
Using the same mortgage calculator, changing the interest rate to 6.625% results in a monthly payment of approximately $25,560.
Step 3: Check if your income meets the standard
Now you have two numbers:
- Regular contribution: $18,260
- Stress test contribution: $25,560
Stage 1: Normal Contribution Ratio $18,260 ÷ Monthly Income ≤ 50% This means your monthly income must be at least $36,520
Stage 2: Stress Testing Contribution Ratio $25,560 ÷ Monthly Income ≤ 60% This means your monthly income must be at least $42,600
:::warning Attention Many people will fail at the second stage! Even if your normal repayments are only 40% of your income, the stress test repayments may already exceed 60%, resulting in 'not approved'. :::
Real Case: Why Can't Amin Pass?
Going back to Ah Ming's example at the beginning:
- House price: $5,000,000
- Loan amount: $4,000,000 (80% mortgage)
- Monthly income: $45,000
- Regular repayment: $18,260 (40.6% of income) ✓ Pass
- Stress test repayment: $25,560 (56.8% of income) ✓ Pass
Huh? The numbers should have been fine, so why did the bank reject it?
It turns out that Amin has a credit card with a minimum monthly payment of $2,000, and also a personal loan with a monthly payment of $5,000. When the bank conducts a stress test, it will calculate all debt repayments together:
- Mortgage stress test repayment: $25,560
- Minimum credit card payment: $2,000
- Personal loan: $5,000
- Total repayment: $32,560
$32,560 ÷ $45,000 = 72.4%, which exceeds the 60% limit, so it cannot be approved!
:::success Experts recommend Before applying for a mortgage, try to pay off all personal loans and credit card balances, and even cut any unused credit cards. Banks will check your credit report (TU), and even if you have no outstanding debt, having high credit card limits will still be considered 'potential debt' in the stress test. :::
5 Common Mistakes That Keep You from Passing Stress Tests
Misconception 1: Thinking 'as long as you can afford it, you'll get approved'
Many people think that if their monthly income is high enough and repayments are easy, they will definitely get a mortgage. But what banks look at is not whether you can afford it 'now,' but whether you can still cope if the interest rate rises to 7%.
Pitfall Avoidance Guide: Before entering the market, first use a stress test calculator to simulate once, ensuring you stay within the 60% limit.
Misconception 2: Ignoring Other Debts
Credit cards, personal loans, car loans, student loans... all of these will be counted into your 'total payments.' Many people think, 'I pay on time, it should be fine,' but banks look at your 'total debt ratio.'
Pitfall Avoidance Guide: 3-6 months before applying for a mortgage, try to pay off all debts, or reduce credit card limits.
Misconception 3: Applying jointly as a couple actually might not get approved
Some couples think that 'if both people apply together, adding up our incomes should make approval easier.' But if one party has debt or a poor credit rating, it could actually drag down the overall approval outcome.
Pitfall Avoidance Guide: If one party's income is already sufficient to pass the stress test, consider applying individually to prevent the other party's debts from affecting approval.
Misconception 4: Thinking that 'new developments' don't need to undergo stress testing
Some real estate agents say, 'New properties have developer mortgages, so you don't need to do a stress test.' This statement is wrong! Developer mortgages usually only waive the stress test for the first 1-2 years. After that, when switching the mortgage back to a bank, you still need to pass the stress test.
Pitfall Avoidance Guide: Before buying a new property, you need to carefully calculate whether your income and debt situation will pass the stress test when refinancing 2-3 years later.
Misconception 5: Thinking that 'adding a guarantor' is absolutely necessary
Having parents or siblings as guarantors can indeed increase your 'total income,' but banks will also look at the guarantor's debts and credit rating. If the guarantor already has a mortgage or other debts, they might not be able to help you.
Pitfall Avoidance Guide: Before finding a guarantor, first understand the other party's financial situation, and make sure their income and credit rating meet the bank's requirements.
:::warning Special Reminder If the guarantor already has a mortgage, their "available income" will be discounted. For example, if they earn $50,000 per month but already have a mortgage with a monthly payment of $15,000, the bank may only count the remaining $35,000 of income. :::
Can't Pass the Stress Test? 4 Practical Solutions
Option 1: Increase the down payment, reduce the loan amount
If you can't pass the stress test, the most direct method is to increase the down payment and reduce the loan amount. For example, changing from an 80% mortgage to a 60% mortgage will significantly reduce both the monthly payments and the stress test payments.
Example:
- House price $5,000,000
- 80% mortgage ($4,000,000): stress test repayment $25,560
- 60% mortgage ($3,000,000): stress test repayment $19,170
The income requirement has dropped from $42,600 to $31,950, a full reduction of $10,650!
Plan 2: Extend the Repayment Period
If the mortgage term is extended from 25 years to 30 years, the monthly payments will decrease, and the stress test payments will also be correspondingly lower. However, it should be noted that the longer the term, the higher the total interest cost.
Example:
- Loan amount $4,000,000, interest rate 3.625%
- 25-year term: monthly payment $19,960, stress test payment $27,920
- 30-year term: monthly payment $18,260, stress test payment $25,560
Plan 3: Repay All Debts
Before applying for a mortgage, try to pay off all credit card balances, personal loans, car loans, etc. If you really can't pay them all off, you can consider consolidating multiple debts into a single low-interest loan to reduce the monthly repayment amount.
Option 4: Find a guarantor or apply jointly
If your income really isn't enough, you can ask your parents, spouse, or siblings to be a guarantor, or apply jointly. However, you should note that the guarantor also has to pass the stress test, and in the future, when they want to buy a property, they will be subject to restrictions due to having an existing mortgage.
:::tip Expert Tips If you are a first-time homebuyer, you can consider applying for the 'Mortgage Insurance Program,' which allows you to borrow up to 90% of the mortgage. Although you need to pass a stress test, the Hong Kong Monetary Authority relaxed some requirements in 2024. Even if you do not fully pass the stress test, as long as the payment ratio does not exceed 50%, there is still a chance to get approved (though the insurance premium will be higher). :::
Summary: Be Well Prepared, Enter the Market with More Confidence
Stress tests are not meant to 'make things difficult' for you, but to protect you so that you can still afford your property when interest rates rise. Many people think 'if you can afford it, you'll get approved,' only to find out at the bank that they can't pass the stress test, wasting their time and effort for nothing.
Remember these key points:
- The stress test assumes an interest rate increase of 3%, to see if your repayments would exceed 60% of your income
- The bank will include all your debts (credit cards, personal loans, etc.) in the stress test
- Before applying for a mortgage, try to pay off all debts to improve your credit rating
- If you cannot pass, you can consider increasing the down payment, extending the term, or finding a guarantor
Do your homework before entering the market, simulate a stress test yourself first, and make sure you are 'qualified' before approaching the bank, so you won’t have to worry about the awkward situation of being 'unable to get approval.' Remember, buying a house is a big life decision; it’s better to enter the market slowly than to force yourself to borrow to the maximum, which could ultimately lead to too much mortgage pressure and affect your quality of life.
Want to learn more mortgage strategies? If you still have questions about mortgage stress tests, or want to know whether your financial situation can pass approval, feel free to leave a comment sharing your situation, and I will do my best to answer! Remember to subscribe to our Blog to regularly receive the latest real estate investment tips and market analysis. If you have any mortgage-related difficulties, you can also message us privately, and we will provide professional advice to help you get on the property ladder smoothly!