Calculate how much life cover you actually need using two methods. Get a recommended term length and an estimated monthly premium.
Income multiple method + DIME method + term recommender + monthly cost estimate
Most people either underestimate or make a rough guess when it comes to life insurance cover. The two most widely used methods — the income multiple and the DIME method — give you a systematic way to arrive at a figure that genuinely protects your family.
The simplest approach: multiply your annual income by 10. A £45,000 salary suggests £450,000 of cover. The logic is that the lump sum, invested conservatively, could replace your income for 10+ years. This method works well as a quick benchmark but does not account for your specific debts or mortgage.
Adding these four figures together gives you a cover amount that addresses your family's specific financial situation rather than relying on a generic rule of thumb.
Level term pays the same lump sum regardless of when within the policy term you die. It provides consistent protection for your dependants and is generally recommended if you have children or non-mortgage financial dependants. Decreasing term reduces the payout over time, typically in line with a repayment mortgage balance. It is cheaper and is well suited to pure mortgage repayment protection — but provides less cover for other dependant needs as time passes.
Life insurance premiums are based primarily on your age and health status at the time of application. A healthy 30-year-old non-smoker will pay a fraction of the cost compared to the same policy taken out at 45. The premium you lock in at application stays fixed for the entire term with most policies. Every year you delay taking out cover costs you more in the long run.
A common rule of thumb is 10 times your annual salary. The DIME method (Debt + Income + Mortgage + Education) gives a more precise figure. Our calculator runs both methods. For most people with a mortgage and dependants, £200,000–£500,000 of level term cover is a reasonable starting range.
DIME stands for Debt + Income + Mortgage + Education. Add up all your unsecured debts, income you want to replace (annual income x years), outstanding mortgage balance, and estimated education costs for your children. The total gives a precise, needs-based cover amount.
Level term pays the same lump sum throughout the policy term. Decreasing term reduces the payout over time, typically in line with a repayment mortgage. Level term costs more but protects dependants consistently. Decreasing term is cheaper and suited to mortgage repayment protection only.
A £250,000 level term policy over 25 years costs from around £10–£15 per month for a healthy non-smoker in their late 20s or 30s. Smokers typically pay 2–3 times more. Premiums increase with age — buying earlier almost always saves money over the life of the policy.
Match the term to your mortgage repayment period or until your youngest child is financially independent. For a 30-year-old with a 25-year mortgage and young children, a 25–30 year term is usually appropriate. The policy should run at least until your financial dependants no longer rely on your income.
If you have no dependants and your debts would not pass to anyone else on your death, life insurance is generally not a priority. Critical illness cover or income protection insurance may be more relevant for single people — protecting your income and lifestyle if you are unable to work, which is statistically more likely than dying during working age.
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