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url: /glossary/mandatory-premium-single-additional-premium-or-scheduled-additional-premium.md
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## Mandatory premium, Single additional premium or Scheduled additional premium

The mandatory premium in a life insurance contract refers to the initial premium paid upon subscription of the policy.

A single additional premium refers to an extra payment made by the policyholder into an existing policy, independently of the initial or scheduled premiums.

A scheduled additional premium refers to an extra payment made at regular intervals, according to the frequency defined by the policyholder.