Insurance and Age: 'Age Last Birthday' vs 'Age Nearest Birthday'
How insurers define age for premiums, why the definition can change your cost, and how to check which convention your policy uses.
Insurance premiums for life, health and some travel policies depend on age. Perhaps surprisingly, insurers do not always mean the same thing by "age".
The main conventions
- Age last birthday: your completed years. If you are 37 years and 11 months old, your age is 37.
- Age nearest birthday: your age rounded to the closest birthday. The same person, 37 years and 11 months old, would be treated as 38.
- Age next birthday: the age you will reach at the coming birthday. That person would again be 38.
Each convention produces a different age for roughly half the year, so the same person could pay a different price for what seems the same policy.
Why the choice matters
Premiums for age-related products generally rise with age. A policy priced by nearest birthday puts you into the higher band about six months earlier than one priced by last birthday. Over a long-term policy, the difference can be small each year, but it compounds if you're comparing quotes.
Comparing quotes fairly
When comparing quotes from different insurers:
- Ask which age definition each uses.
- Calculate your age on the quote date using each definition.
- Compare prices at the same effective age, not just at the quoted premium.
Dates worth checking
- The application date, which sets the age for quotes.
- The policy start date, which may be weeks later and could cross a birthday.
- The anniversary date, when many policies re-rate your age.
Timing an application
If your birthday is close and the insurer uses age at the policy start, applying and starting cover a few days before the birthday may keep you in the lower age band. This is a legitimate consideration, but confirm the actual rule with the insurer, and do not delay cover you need for the sake of a minor saving.
Travel insurance
Travel policies often price in age bands with clear cutoffs, such as under 65 or 65 to 70. The age used is usually age on the date the trip starts.
Be accurate and honest
Always give your correct date of birth. Misstating age on an application can invalidate a claim, so any optimisation should involve choosing a start date, not altering data.
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