Imagine twelve traders in a market, each putting ₦20,000 into a pot every month. Each month, one person collects ₦240,000. That's the basic idea behind ajo (Yoruba), esusu (also Yoruba, common in the diaspora), and similar groups you'll hear called "susu" in Ghana, "chama" in Kenya and "stokvel" in South Africa. It's simple, it works for millions of people, and it can also go badly wrong when one person stops paying.
This guide explains how rotating savings groups work, what they're good and bad at, how to check a group before joining, and what to put in writing. Rules and legal protections differ by country, so check the notes near the end.
Two different things people call "ajo"
The word covers two quite different arrangements, and mixing them up is where many people get hurt.
1. Rotating group (esusu, chama, many stokvels)
A fixed group contributes a fixed amount on a fixed schedule. Each round, one member takes the whole pot. After everyone has had a turn, the cycle ends or restarts. There is usually no one holding money for long, because the pot is paid out each round.
2. Collector-based daily or weekly saving (ajo with an agent)
You give a collector a small amount daily or weekly, often a market trader's agent. At the end of the month or cycle, the collector returns your total, commonly minus one day's contribution as a fee. Here a single person holds many people's money for weeks. The risk is concentrated in that one person.
Neither is a bank deposit. Neither is automatically insured. That's the starting point for judging both.
What these groups do well
- They force discipline. A social obligation to pay on a set date is stronger than a promise to yourself.
- They give you a lump sum. If you need ₦240,000 for rent, stock or school fees, a pot gets you there without a loan.
- They cost little or nothing. No account fees, no interest charged, no paperwork in most groups.
- They run on trust you already have. Members know each other's shops, families and churches.
Where they go wrong
- Position risk. The person who collects first gets an interest-free loan from everyone else. If they stop paying afterwards, the later members lose out. Those in the last positions carry the most risk.
- Organizer risk. If one person holds the money, even for a few days, they can lose it, spend it or disappear.
- No return and no inflation protection. A pot collected in month 12 buys less than the same amount in month 1 if prices are rising. See our guide on saving money when inflation is high for what to do with money that sits for a long time.
- Weak records. "I paid last week" arguments are common when nothing is written down.
- Fake groups. Some schemes call themselves ajo but promise to "double" or add large bonuses to your money. That's a Ponzi scheme, not savings. Real groups pay out exactly what members put in, apart from a small stated fee.
A 10-point safety check before you join
- Do you know at least some members personally? Know where they work, live or worship. A group of strangers from social media is a red flag.
- Is there a clear organizer, and how long have they run groups? Ask previous members how past cycles ended.
- Does the pot go straight to the member whose turn it is? Prefer groups where members pay the recipient directly or the money passes through the organizer within the same day.
- Are the rules written down? Contribution amount, due date, penalty for late payment, payout order, and what happens if someone drops out.
- How is the order decided? Draw lots in front of everyone, or agree an order based on need. Not one person's private decision.
- Is the contribution affordable on your worst month? Not your average month.
- Are the numbers realistic? Payout should equal contributions. Any promise of extra is a warning sign.
- Is there a group chat or ledger where every payment is recorded? Everyone should see who has paid.
- Is there a guarantor or deposit for early collectors? This protects later members.
- Is the group a sensible size? Smaller, shorter cycles mean less exposure. Ten people over ten months is easier to manage than forty over a year.
Worked example (hypothetical)
Ten friends each contribute ₦30,000 a month. The pot is ₦300,000. Ngozi draws position 2, and Tunde draws position 10.
- Ngozi pays ₦30,000 in month 1, collects ₦300,000 in month 2, then pays eight more months. She has paid ₦300,000 in total and received ₦300,000.
- Tunde pays ₦30,000 for nine months (₦270,000) before getting paid in month 10.
Now suppose a member in position 3 stops paying after collecting in month 3. Each remaining member is short ₦30,000 per month for the rest of the cycle unless the group has a guarantor or deposit. Tunde, at position 10, is most exposed: he's lent money to everyone before him. This is why a late position should come with some compensation, such as the right to choose a position first, or a small deposit held from earlier collectors.
A simple fix: require each person who collects early to name a guarantor, or have every member put an extra one month's contribution in a separate holding arrangement agreed in writing.
Rotating group versus bank, cooperative or app
| Option | Strength | Main risk | Best for |
|---|---|---|---|
| Rotating group | Lump sum, no fees, discipline | Member default; no protection | Known groups with a specific goal |
| Collector-based ajo | Very easy for daily earners | One person holds everyone's money | Traders who can't leave the shop; only with a proven agent |
| Licensed bank or microfinance savings | Regulated institution, records | Possible fees; may offer little return | Money you can't afford to lose |
| Registered cooperative society | Formal rules, often loans to members | Poor management if members don't scrutinize | Staff or community groups with ongoing needs |
| Savings or investment app | Automation, records | Check whether the provider is licensed | Salary earners wanting auto-saving |
If the amount is large, or you can't absorb a loss, a regulated institution is the safer home. Check the provider's license with the relevant regulator (in Nigeria, the Central Bank of Nigeria or the Securities and Exchange Commission, depending on the product) before depositing.
What to put in writing
You don't need a lawyer for a ₦20,000-a-month group. You do need a shared note, signed or confirmed in the group chat by every member. Include:
- Names and phone numbers of all members.
- Contribution amount, due date and payment method.
- Payout order and how it was chosen.
- Penalty for late payment, and a grace period if any.
- What happens if a member leaves or defaults (who covers the shortfall).
- Organizer's fee, if any, stated as a fixed amount.
- Start and end date.
Pay by bank transfer, not cash, wherever you can. A transfer receipt is evidence. A handshake isn't.
Common mistakes
- Joining because someone is "paying double". That is not ajo.
- Putting in more than you can afford. One missed month can cost you your place and your reputation.
- Taking the first position without a plan. An early pot is a debt to the group. Use it for something that helps you keep paying.
- Taking the last position for "safety". It's actually the riskiest spot.
- Leaving the organizer to hold the pot for weeks. Pay out quickly.
- Running several groups at once. Add up all contributions against your income first. A scam report is much harder to win than a missed contribution is to prevent.
Country notes
Nigeria: Informal ajo and esusu aren't covered by deposit insurance. Registered cooperative societies operate under their own rules, which differ from informal groups.
Ghana: Susu collectors may operate under licensing rules; ask to see a collector's license and confirm with the regulator.
Kenya: Chamas can register as groups, which gives you clearer documents and a constitution to point to. Check with the relevant government office on current requirements.
South Africa: Stokvels often have written constitutions and bank accounts in the group's name. Prefer that arrangement over one person's personal account.
Rules change, so confirm the current position with the official regulator before depending on any of this.
Frequently asked questions
Is it safe to be the organizer?
It carries real responsibility. Members may blame you for any default. Keep a clear ledger, avoid holding cash, and never mix the group's money with your own.
What should happen if someone defaults?
Your written rules should decide it. Common options: the guarantor pays, the defaulter repays in installments, or the group replaces them. Without rules, the loss usually lands on whoever hasn't collected yet.
Can I save for an emergency this way?
Not well. You can't get your money out when you need it unless it's your turn. Keep emergency money somewhere you can reach it, and use ajo for planned goals.
Should I join a group on social media?
Be very careful. If you can't meet the members or verify them, don't pay. Scammers use ajo language to look friendly.
Your next step
Before you accept any invitation, write down the 10 checks above and score the group. If it fails more than two, walk away. If it passes, ask for the rules in writing and pay by transfer from day one.
This article is for general information only and is not financial, legal, or tax advice. Prices, rates and rules change quickly, so check current details before making money decisions.