What is a chama? Kenya’s savings groups explained

By Tyknit · Published 2026-08-27

A chama is an informal savings and investment group in Kenya — typically 10 to 30 people who know each other, contributing a fixed amount on a schedule and either rotating the pot to one member at a time or pooling it into shared investments.

Where chamas come from

The word chama is Swahili for “group” or “association”. The practice grew out of harambee — Kenya’s tradition of pulling together for a shared need — and out of women’s merry-go-round groups that rotated a lump sum among members long before banks reached most households. Today chamas span every income level: market traders contributing 200 shillings a week, professionals pooling 50,000 shillings a month into land and shares, and diaspora Kenyans sending contributions home.

The Kenya Association of Investment Groups has estimated there are more than 300,000 chamas in the country managing assets in the hundreds of billions of shillings. Most are unregistered, which is precisely why the rules members agree among themselves matter so much.

The two models: merry-go-round and investment

A merry-go-round (a rotating savings and credit association, or ROSCA) is the simplest form. Every member contributes the same amount each cycle and one member takes the whole pot, in an order fixed by ballot or by need, until everyone has received once. Nobody earns interest and nobody pays it; the value is forced discipline and an interest-free lump sum.

An investment chama keeps the pot. Contributions accumulate and the group buys assets together — land, a matatu, government bonds, a rental building, shares in a SACCO — and distributes returns by agreement. This model needs more governance: a constitution, elected officers, audited accounts, and clear rules for a member who wants to leave.

How a well-run chama is organised

Whatever the model, the chamas that last tend to have the same bones:

  • A written constitution: purpose, contribution amount and date, penalties for late payment, how new members join, how members leave, how officers are elected and removed.
  • Three officers: a chairperson who runs meetings, a secretary who keeps minutes and the member register, and a treasurer who keeps the ledger and the bank or M-Pesa account.
  • A ledger every member can see — who paid, when, how much, and what the pot is worth today.
  • Regular meetings (monthly is most common) with attendance recorded, because showing up is the earliest signal that a member is still committed.
  • Vouched admission: new members are proposed by an existing member who answers for them.

Why chamas fail

Chamas rarely collapse because of a bad investment. They collapse because of trust: a treasurer who could not show where the money went, a member who took the pot and stopped contributing, a WhatsApp thread where the ledger lived in one person’s head. The Central Bank of Kenya’s FinAccess surveys have repeatedly found “lost money in a group” among the most common reasons Kenyans give for leaving informal savings.

The fixes are unglamorous: contributions on a rail that leaves a record (M-Pesa paybill, bank transfer), a ledger that cannot be quietly edited, secret ballots for admissions and removals, and a rule that whoever brings in a member is answerable for them.

Chamas and Tyknit

Tyknit is a vouch-based mutual-aid app built around exactly these rules: members join only through another member’s vouch, the ledger is append-only and visible to everyone, ballots are secret, and contributions settle on the chama’s own M-Pesa or bank rail — Tyknit never holds the money. See Tyknit for circles for what the treasurer gets.

Run yours on Tyknit

Vouched membership, a ledger everyone sees, secret ballots — and your money stays on your own rails.