Pension and Benefits for Informal Sector Voluntary retirement savings for those in informal employment are also encouraged through various initiatives and by various Pension Funds. One such initiative is mbao pension plan where one is encouraged to contribute a minimum of Kshs. 20 per day through Mpesa. Registrations for such self-contribution pension plans are available at various Pension and Provident Fund offices and on various online platforms Cost: Nil Timelines: Instant For more information call Huduma Contact Centre: +254 (020) 6900020 Or visit nearest Huduma Centre Or Contact: Retirement Benefits Authority Rahimtulla Tower, 13th Floor, Upper Hill Road, Opp UK High Commission, Nairobi. P.O. Box 57733 - 00200 Nairobi, Kenya. Phone: +254 (20) 2809000 Fax: +254 (20) 2710330 Toll Free No: 0800720300 (Safaricom Network) Email: info@rba.go.ke Cost: Nil Timeline: Instant