Chit fund calculator: dividends, prize money and the real interest rate
A chit fund is a group savings-and-borrowing scheme: every member pays an instalment each month, and each month one member takes the pot. This chit fund calculator shows exactly how the money moves. Enter the chit value, the number of members, the foreman’s commission and each month’s auction bid — or let it simulate a typical declining pattern — and it works out the dividend each member receives, the net instalment actually paid and the prize money for that month’s winner.
Most importantly, it turns every month’s outcome into an effective annual rate: what borrowing early really costs, and what waiting until the end really earns, using the internal rate of return of the winner’s cash flows. That makes a chit comparable with a personal loan or a recurring deposit.
It runs in your browser. Registered chits are governed by the Chit Funds Act, 1982 and state rules: commission is capped at 7% (since the 2019 amendment) and the discount at 40%. Both defaults are editable. Results are informational estimates, not financial advice.
How to use the Chit Fund Calculator
- Enter the chit value and the number of members (one month per member).
- Set the foreman’s commission and the maximum discount allowed.
- Choose Simulate and the first auction’s discount, or Enter each month’s bid from your chit’s records.
- Tick the foreman option if month 1 goes to the foreman without an auction.
- Read the dividend, net instalment and prize for each month, and the yearly cost or return for a winner in that month.
Chit Fund Calculator features
Real auction arithmetic
Commission comes out of the discount; the rest is divided equally among all members, including past winners.
Yearly rate for every month
An IRR on the winner’s actual cash flows, labelled as a cost (prize early) or a return (prize late).
Honest about odd cases
Mid-term winners can lose money with no single meaningful rate; the table shows the net cost instead.
Simulate or enter bids
A straight-line declining pattern for planning, or the real bids from your chit’s minutes.
Chart and CSV
Prize money by month, with details on hover, and the whole table as CSV.
How a chit fund auction works
With a ₹1,00,000 chit and 10 members, the full instalment is ₹10,000. Each month members bid the discount they will give up to take the pot now; the highest discount wins. From the discount the foreman keeps the commission — 5% of the chit value, ₹5,000 — and the rest is the dividend, split equally among all 10 members.
Worked example: month 1’s winning bid is ₹30,000. The winner receives ₹1,00,000 − ₹30,000 = ₹70,000. The dividend is (₹30,000 − ₹5,000) ÷ 10 = ₹2,500, so everyone pays ₹7,500 that month. With bids falling to ₹5,000 by month 10, members get ₹8,600 of dividends in total and pay ₹91,400. The month-10 winner receives ₹95,000 — a return of about 11.4% a year — while the month-1 winner’s ₹70,000 costs over 100% a year.
Formulas used
Commission = chit value × commission %Dividend per member = (discount − commission) ÷ membersNet instalment = chit value ÷ members − dividendPrize money = chit value − discountYearly rate = (1 + monthly IRR)^12 − 1, where the monthly IRR makes the present value of the winner’s instalments equal to the prize. You can check any cash-flow series with the XIRR calculator.
Is a chit fund a good idea?
For a member who needs money early, a chit is expensive borrowing — the deep first discounts make the effective cost far higher than a personal loan or a gold loan. For someone who can wait, the late prizes can beat a bank deposit, but the return depends on how hard others bid, and on the foreman being honest and the chit being registered. Unregistered chits carry real fraud risk, and the dividends are not guaranteed. Under the Chit Funds Act, 1982 (as amended in 2019), commission is capped and the bid ceiling limits how deep discounts can go — check the figures in your chit agreement.
Chit Fund Calculator FAQ
How is the dividend calculated in a chit fund?
Take the winning discount, subtract the foreman’s commission, and divide by the number of members. The chit fund calculator does this for every month and shows the net instalment each member pays.
What is the prize money in a chit?
The chit value minus the winning bid (discount). With a ₹1,00,000 chit and a ₹30,000 bid, the winner gets ₹70,000.
Is the foreman’s commission taken from the winner?
It is taken out of the discount before the dividend is shared, so it reduces what every member gets back.
What interest rate am I paying if I take the chit early?
The calculator works it out as the IRR of your cash flows. In the example, taking ₹70,000 in month 1 costs about 103% a year — far more than most loans.
Why does my month show no rate?
For some mid-term months the cash flows go out, in, then out again and lose money at every interest rate, so no single rate describes them. The table shows the net cost instead.
Are chit fund returns taxable?
The dividend is generally treated as income for tax. Check with a tax adviser; this page is not tax advice.