According to current regulations in Clause 1, Article 73 of the 2014 Law on Social Insurance, employees are entitled to pension when fully satisfying the following conditions: Being full 60 years old, for men, or full 55 years old, for women; Having paid social insurance premiums for at least full 20 years.

At Point e, Clause 1, Article 9 of Decree No. 134/2015/ND-CP dated December 29, 2015 of the Government, one-off payment for the insufficient number of years, for social insurance participants who satisfy the condition on retirement age for pension enjoyment and whose insufficient period of social insurance premium payment is 10 years (120 months) at most. In this case, they may pay social insurance premiums so that their payment period reaches full 20 years in order to receive pension.

In the information you provided, it is not clear whether you are male or female. And as of September 2020, you are not yet full 60 years old for men or full 55 years old for women, therefore, you are not subject to one-off voluntary social insurance conditions for pension entitlement.

You can pay voluntary social insurance by the following methods: Every month, every 3 months, every 6 months, every 12 months or for many subsequent years with each payment for not more than 5 years so that you can enjoy pension when reaching the prescribed retirement age.