Thrift / Cooperative Returns Calculator

Calculate returns from thrift societies, cooperatives, and rotating savings groups (Ajo, Esusu, Susu, Tontine, Chama). Compare against bank savings.

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Rotating Savings & Cooperative Calculator

You Receive (Lump Sum)
Total You Contribute
Lump Sum Received
Months to Your Turn
Implicit Annual Return
Bank Alternative Value
Group Pot per Cycle

Frequently Asked Questions

What is Ajo/Esusu/Susu/Tontine?
These are names for rotating savings and credit associations (ROSCAs) across Africa: Ajo (Yoruba Nigeria), Esusu (Igbo Nigeria), Susu (Ghana/West Africa), Tontine (Francophone Africa), Chama (East Africa), Stokvel (South Africa). Members contribute a fixed amount each period, and one member receives the full pot in rotation. It is essentially enforced savings and zero-interest short-term lending between members.
Is rotating savings (Ajo/Susu) better than a bank?
It depends on your position. If you receive money first (position 1), you get an interest-free loan. If you're last (position N), you essentially provide interest-free loans to everyone else. The main benefit is the discipline of forced savings and community trust. For pure financial returns, a SACCO or MMF typically outperforms a ROSCA — but the social value of ROSCAs is significant.
What is a Stokvel (South Africa)?
A Stokvel is a South African savings club where members make regular contributions to a pool. There are different types: rotating stokvels (one member gets pot per period), grocery stokvels (pool buys groceries in bulk), party stokvels (pool funds celebrations). South Africa's stokvel sector manages over R50 billion annually.