The preconditions for alternation leave:
You are in an employment relationship
You have been working for the same employer without interruptions for at least 13 months before the start of the alternation leave. This can include a maximum of 30 calendar days of absence without pay. Absence due to illness or accident is considered equal to being at work.
You have a work history of at least 20 years
You can no longer take alternation leave when there is less than 3 years left to the minimum age limit.
If your employment is not full-time, your working hours in the part-time employment must be at least 75% of the full-time working hours of an employee in that field.
Work history includes work in accordance with pension acts as well as self-employment. A quarter of the required work history may be time comparable to working, such as family leaves, military service and non-military service.
You cannot take alternation leave after the ending of the calendar month during which you reach the age that corresponds to the minimum age limit for old-age pension stated in the Employees Pensions Act, reduced by three years. In other words, the upper age limit for taking alternation leave depends on the minimum age limit for old-age pension stated in the Pensions Act. The minimum age limit according to old-age pension, then again, depends on when you were born.
The upper age limits for taking alternation leave are as follows:
for those born in 1957: 60 years and 9 months
for those born in 1958: 61 years
for those born in 1959: 61 years and 3 months
for those born in 1960: 61 years and 6 months
for those born in 1961: 61 years and 9 months
for those born in 1962–1964: 62 years
for those born in 1965 and after, the minimum age limit for old-age pension is confirmed separately with a decree by the Ministry of Social Affairs and Health
If you were born before the year 1957, there is no separately set upper age limit for alternation leave.