The reduction applied to alpha benefits for taking them early is approximately 4% for each year early you claim them.
However, this doesn’t necessarily mean you’ll have less pension than had you stayed in premium as alpha has a more generous accrual rate than premium to account for the fact it has a later Normal Pension Age.
It's important to note that everyone's individual circumstances (such as salary fluctuations) are different.
For advice regarding your individual circumstances, please consult an Independent Financial Adviser (IFA). You can find a list of IFAs on the Financial Conduct Authority’s website.