Mortgage Tenure Calculator Singapore 2026
Age-65 Rule, Maximum Tenure for 75% LTV & Instalment vs Interest Trade-Off
Find the optimal loan tenure for your Singapore mortgage based on your age and property type. The MAS age-65 rule means the maximum tenure for full 75% LTV depends on your age: if age plus tenure exceeds 65, your LTV drops to 55% and the minimum down payment rises sharply. This calculator shows your maximum tenure at each LTV tier, compares instalments and total interest across five tenure options (10 to 30 years), highlights the trade-off between lower monthly payments and higher total interest, and identifies the longest tenure that keeps you within the full 75% LTV threshold.
Your mortgage loan amount. The calculator shows how instalment and total interest change across different tenure options for this amount.
For joint borrowers, use the youngest borrower’s age (most favourable). The calculator computes the maximum tenure that keeps age + tenure within 65 (for full 75% LTV) and within 75 (for reduced 55% LTV). HDB loans are capped at 25 years; private at 30 years.
Enter your loan amount, interest rate, and age. The calculator shows your maximum tenure for full LTV, compares instalments and total interest across tenure options from 10 to 30 years, and identifies the optimal balance between monthly affordability and total cost.
Mortgage Tenure Singapore 2026 — How Age Limits Maximum Loan Tenure & LTV for HDB and Private Property
Choosing the right mortgage tenure is one of the most impactful financial decisions in property buying. A longer tenure means lower monthly instalments (more affordable month-to-month) but significantly more total interest paid over the life of the loan. A shorter tenure means higher monthly payments but far less total interest and faster debt clearance. In Singapore, tenure is not just a personal choice — it is constrained by two regulatory limits: (1) the absolute maximum of 25 years for HDB or 30 years for private property; and (2) the age-65 rule, where age plus tenure must not exceed 65 for full 75% LTV (or 75 for reduced 55% LTV). Your age therefore directly determines the maximum tenure you can take while maintaining the best borrowing terms.
Maximum Tenure by Age and Property Type
| Age | Max for 75% LTV (Private) | Max for 75% LTV (HDB) | Max for 55% LTV |
|---|---|---|---|
| 30 | 30 years | 25 years | 30/25 years |
| 35 | 30 years | 25 years | 30/25 years |
| 40 | 25 years | 25 years | 30/25 years |
| 45 | 20 years | 20 years | 30/25 years |
| 50 | 15 years | 15 years | 25/25 years |
| 55 | 10 years | 10 years | 20/20 years |
75% LTV requires age + tenure ≤ 65. Beyond that threshold, LTV drops to 55% with higher down payment. Adding a younger co-borrower resets the age calculation.
How This Tenure Calculator Works — Age Limits, Comparison Table & Trade-Off Analysis
Step 1 — Enter Loan, Rate and Age
Enter your loan amount, interest rate, age (youngest borrower for joint applications), and property type. The calculator immediately determines your maximum tenure for the full 75% LTV (age + tenure within 65) and the reduced 55% LTV (age + tenure within 75), constrained by the absolute maximum (25yr HDB, 30yr private).
Step 2 — Review the 5-Tenure Comparison
The comparison table shows monthly instalment, total interest, age at loan maturity, and applicable LTV for five tenure options (10, 15, 20, 25, and 30 years where applicable). The optimal tenure (longest that maintains 75% LTV) is highlighted. Tenures that cross the age-65 threshold are flagged with the reduced 55% LTV.
Step 3 — Understand the Trade-Off
The trade-off section quantifies the difference between the shortest and longest tenure: how much less you pay per month with a longer tenure, and how much more total interest you pay for that convenience. The dual-axis chart visualises monthly instalment (declining with tenure) vs total interest (rising with tenure) so you can find your personal sweet spot.
3 Real Singapore Tenure Examples — Young First-Timer, Mid-Career Upgrader & Older Buyer
Age 30, S$500K HDB at 2.6%
Age 42, S$800K Condo at 3.5%
Age 52, S$600K Private at 3.0%
3 Expert Tenure Tips — Overpayment Strategy, Young Co-Borrower & the 20-Year Sweet Spot
Take the Max Tenure but Make Voluntary Overpayments
The most financially flexible strategy: take the maximum tenure (lowest required monthly payment) but make voluntary overpayments whenever cash flow allows. This gives you the safety of a low required payment during tight months (renovation, job transition, baby) while reducing total interest through overpayments in good months. After the lock-in period, most bank loans allow unlimited prepayment without penalty. A S$600,000 loan at 3% over 25 years: required payment S$2,843/month. If you overpay S$500/month consistently, you clear the loan in ~19 years and save approximately S$62,000 in interest — achieving the total interest of a 20-year tenure with the safety net of a 25-year required payment.
Add a Younger Co-Borrower to Extend Maximum Tenure
The age-65 rule uses the youngest borrower’s age. If you are 50 (max 15yr for 75% LTV), adding your 35-year-old spouse as co-borrower resets to 35+30=65 — restoring the full 30-year tenure at 75% LTV. The impact is dramatic: a S$750,000 loan at 3% over 15yr costs S$5,179/month, but over 30yr costs only S$3,161/month — a S$2,018/month reduction. The trade-off: total interest rises from S$182,000 to S$388,000 (+S$206,000). But the monthly affordability improvement may determine whether you can afford the property at all. Use this calculator to compare both scenarios and see the exact numbers for your situation.
The 20-Year Sweet Spot: Best Balance of Instalment and Interest
For most Singapore buyers, 20 years offers the optimal balance between monthly affordability and total interest cost. Compared to 25 years: the monthly instalment is about 15% higher, but you save approximately 20–25% in total interest. Compared to 15 years: the monthly payment is about 20% lower, making it much more comfortable for cash flow. At 3% on a S$600,000 loan: 15yr = S$4,141/mo (total interest S$145,000); 20yr = S$3,326/mo (total interest S$198,000); 25yr = S$2,843/mo (total interest S$253,000). The jump from 20yr to 25yr saves S$483/month but costs S$55,000 extra in interest — an expensive trade for monthly comfort. Unless you specifically need the lower 25-year payment for TDSR/MSR, 20 years is often the most capital-efficient tenure.