The definition
A rotating savings and credit association — often shortened to ROSCA — is a group of people who agree to contribute the same amount of money on a regular schedule, and who take turns receiving the whole pool. Each member contributes every cycle, and each member receives the pooled payout exactly once. The circle ends when every member has had a turn.
ROSCAs are known around the world under many local names: susu in the Caribbean and West Africa, tontine in Haiti and francophone communities, tandas in Mexico, ajo and esusu in Nigeria, partner hand in Jamaica, and chit funds in India. The mechanics are the same everywhere — a trusted group, fixed contributions, and a fair rotation.
How a ROSCA works, step by step
- 1A group of trusted people — family, friends, a community or a church — agrees on a contribution amount and a schedule, such as $50 CAD every week.
- 2Each week (or month), every member sends their contribution into a shared pool held by the organizer.
- 3One member receives the full pool for that cycle, following an agreed rotation order. Some circles draw lots for the first turns; others prioritize the members who need it most.
- 4The rotation continues until every member has received the pool once. Then the circle is complete — everyone has contributed exactly what they received.
Why people join ROSCAs
A ROSCA turns small, steady contributions into a lump sum you can actually use — for rent, school, a business purchase or an emergency. For members without access to bank credit, it is a way to borrow from a group that knows and trusts them, with no interest and no institution in the middle. The commitment itself is the discipline: once you join, the group's expectations keep you saving.
The hard part: trust and record-keeping
The mathematics of a ROSCA never changes, but running one by hand is hard. Paper ledgers go missing, memories of who paid differ, reminders are awkward, and a single dispute can break a circle that took years to build. That is why so many traditional circles stay small — and why groups look for a better way to keep the records honest.
ROTNAD exists for exactly that reason. It does not change the tradition — it organizes it. Members see the exact amount due each week, their position in the rotation, and their full payment history. Every contribution is paid with Interac to the organizer's email, and every payment is confirmed by a human organizer who reviews the proof before the week is marked paid. Identity is reviewed by a person too, so members always know who is in the circle.
ROSCA tradition, organized by ROTNAD
| Traditional way | With ROTNAD |
|---|---|
| Paper ledgers and memory | One shared digital record every member can open |
| Chasing members for payments | Automatic reminders and a clear amount due each week |
| Taking someone's word that they paid | Payment proof reviewed and approved by the organizer |
| Handwritten rotation order | A fixed, visible rotation everyone can check |
| Trust based on word of mouth | One-time identity review for every participant |
ROTNAD never holds, moves or automatically verifies money. Contributions are sent with Interac to the organizer's email, and every payment is confirmed by a person.