Sri Lanka: the rate is fixed for a few years, then it follows AWPLR
A Sri Lankan housing loan is not usually a single fixed rate for its life, and it is not usually a pure floating one either. Banks price it fixed by tenor, then let it float afterwards, which is the shape this calculator cannot show in one number.
Commercial Bank's published card is a fair illustration: on its standard tier, 13.50% fixed for three years, 14.50% for five, 15.00% for ten and 15.50% for fifteen, with anything from fifteen to twenty years priced as AWPLR plus 3%. People's Bank quotes 13.0% to 15.5% variable on its main scheme, and a product fixed for the first two years before reverting. Concessionary tiers knock off 0.25% to 1.00% for higher earners and professionals.
That matters for what you enter here. The single rate on this page gives you the repayment during the fixed period. Once the loan reverts, the rate moves with the Average Weighted Prime Lending Rate, which stood at 10.92% in early September 2026, against a policy rate of 8.75%. Run the calculator twice, once at the fixed rate and once at AWPLR plus the margin your bank quotes, and treat the gap as your exposure.
There is no loan-to-value cap on housing
The Central Bank imposes loan-to-value limits on credit for motor vehicles, under a 2025 Banking Act direction, but has issued no equivalent for housing. What constrains your deposit is each bank's own policy: 80% of value is a common ceiling on an apartment purchase, and terms run to twenty years for salaried borrowers, twenty-five on some schemes, and around ten for the self-employed.
A second stamp duty, on the mortgage itself
Buyers usually budget for duty on the transfer of the property. There is a second, smaller one on the loan: a bond or mortgage for a definite sum attracts Rs. 1 per Rs. 1,000, or 0.1% of the amount secured.
On a Rs. 20 million loan that is Rs. 20,000, payable at the time you borrow rather than spread across the term, so it belongs in the up-front costs on this page and not in the rate. Note also that duty on the transfer of land is a provincial charge rather than a central one, having been devolved to the Provincial Councils, so confirm the rate with the province the property sits in rather than assuming a single national figure.