You can often take out a Funeral Insurance Plan depending on your state of health, these are often referred to as Whole of Life policies, which can seem attractive because most (but not all) have an investment element and therefore a surrender value. If, however, you cash them in you cancel the policy and lose your life cover and you wont have a sum to pay for your Funeral.
Where there is an investment element in Funeral Insurance Plan, your monthly premiums are first used to 'buy' units in an investment fund offered by the insurance company. This will calculate the cost of the life cover for the next month and deduct the charge by 'cancelling' just enough units to pay for this life cover.
The investment growth of the fund in a Funeral Insurance Plan will depend on how much is being deducted to pay for the life cover, which is based on your age. Premiums are reviewed after 10 years and then normally every 5 years.
Whole of Life plans are also now available without an investment element and also with guaranteed premiums from some providers.