The Revenue Department currently extends tax benefits to people who buy insurance for their parents, who earn no more than Bt30,000 a year. But consumers have been slow to buy the so- called "Look Ka Tan Yoo" (Grateful Children) policies, and it is hoped that increasing the ceiling will expand the pool of eligible parents and boost business.

Potjanee Thanavaranit, director-general of the Insurance Department, said the idea came about following concerns that the Bt30,000 ceiling was too low.

"We've discussed the matter with the Revenue Department and it is now considering the possibility. A conclusion should be reached soon," said Potjanee.

People who buy the policies can take a maximum tax deduction of Bt15,000. To qualify for the programme, when a policy is first written, parents must be aged between 40 and 65. After purchase, however, it can be renewed annually regardless of age.

There are three types of policy. The first two - a health policy covering critical illness and a personal accident policy - have existed for some time. The third, launched yesterday, covers long-term care.

Policyholders can claim the amount insured as long as they meet three of six conditions - inability to get up, walk, dress, take a bath and eat, and incontinence - for six straight months, or have a medical certificate from a doctor.