Contribution period is the time during which a working person pays social security contributions. This has a direct impact on the amount of his or her future benefits, such as pension or annuity. The contributory period includes years worked on contracts covered by compulsory social insurance, such as employment contracts, doing business, as well as other situations where contributions are paid (e.g. maternity or parental leave in some cases).
Contributory periods are key when calculating the pension. The accumulation of more contribution periods usually leads to higher benefits, as a longer contribution period results in a larger pension capital.