A wedding has a date that cannot move, and a cost that cannot be halved. When the day comes, the money has to be there. A community fund exists to carry that weight together. The question in front of the committee is not whether to help, but how to share the load, and two honest designs are on the table. They are built on opposite promises, and they ask families to trust in opposite ways.

Here are the two, in one breath each. The first, Gemach Hakehiloh, works per family. A family saves together, and when a child marries the fund lends what it can afford that year, on the day, with the amount growing over time toward the full sum. The second, Gemach Hamerkazi, is one pool the whole community shares. You save for each child and take a place in line, and when your turn comes you receive the full loan. One grows the amount. The other makes you wait for it.

Step inside Gemach Hakehiloh as a family. You pay about a hundred and fifty pounds a month, and that is the same whether you have one child or ten. On each wedding date, the money is there. In the early years the loan is smaller, and it climbs year by year as the fund matures. A large family is carried generously by the shared pot. A small family is close to simply saving for itself. The promise here is timing: the model is designed to provide the available loan on the wedding date.

Now step inside Gemach Hamerkazi. Here you save for each child, about forty pounds a month for ten years, and you take a numbered place in the line. When your turn comes, you receive the full forty thousand pounds, the same amount for everyone. The promise here is the amount. It is complete from the first turn. What you give in return is patience, because the line can be long.

This is the trade the committee will feel most. One fund is per family, the other per child. One gives you certainty of timing, the other certainty of amount. For a large family Gemach Hakehiloh is far cheaper, because the fee is flat. For a family with one child Gemach Hamerkazi can cost less, because you only pay for the one. Neither is better in the abstract. They simply hand the family a different kind of certainty, and a different bill.

How Gemach Hakehiloh actually moves its money. A family saves into a pot, up to a cap of forty thousand pounds. Alongside it they pay a small monthly fee that is never returned; most of that fee builds the fund's reserves, and a smaller part covers running costs. After eighteen years of membership a family can borrow, though the founding families are eligible from the outset. Each month, the family repays an amount equal to one per cent of the original loan. On a forty thousand pound loan, that is four hundred pounds a month. That rate is a choice the committee can raise. A higher repayment brings the money back faster, and lets the loan climb to its full size sooner. Either way, no family pays more than about twelve hundred pounds a month across all its loans at once. At the very end, a family's own pot closes the tail of its last loan.

Because Gemach Hakehiloh sits inside a credit union frame, it has to hold two safety levels at all times: capital at eight per cent of members' savings, and cash at ten per cent. It does not lend on day one. It collects for about three years first, and opens its lending with a modest start-up capital once the set-up costs are met, in the order of a hundred and fifty thousand pounds. Fundraising, in the region of thirty five thousand pounds a year, is what keeps it at its floor in the early years. These two lines are what make it a regulated fund rather than simply a pot of money.

How Gemach Hamerkazi moves its money. Forty pounds a month for a hundred and twenty months comes to four thousand eight hundred pounds. That splits in half. One half stays yours, your savings. The other half is a contribution that builds the fund and is not returned. In exchange you receive a loan of forty thousand pounds, about sixteen times what you saved. You repay it at four hundred pounds a month, and your own savings quietly settle the final few months. Families are served strictly in the order they joined, first in, first served.

Here is what makes Gemach Hamerkazi turn. It needs a steady, equal number of families joining every month; that regular intake is the engine. Picture a thousand units paying in. The moment the pool holds enough for a full loan, the next family in line is called forward, tops up, and borrows the forty thousand. And the next month it can happen again, because the money is already arriving from two places: new joiners, and earlier borrowers now repaying. Early on it is almost all joiners. Over the years, the repayments grow and take over, and the fund begins to carry itself.

So what drives each one forward. Gemach Hakehiloh grows by reproduction. Every daughter's wedding seeds a new saving household, which is a rate we can measure against real membership, in units, where one unit is one saving household. Gemach Hamerkazi does not rely on compound growth. It relies instead on a steady level of new joining units. And over time it leans increasingly on repayments from earlier borrowers. One engine compounds. The other recycles.

Gemach Hamerkazi belongs to what is called the contract savings tradition. In Germany, the Bausparkassen, still running today, have people save into a shared closed pool and wait their ranked turn for an allocated loan, with repayments recycling to fund the next member. Victorian Britain did the same with its terminating building societies: members subscribed, were paid out in turn, and the society wound itself up once everyone had been housed. Gemach Hamerkazi is that idea, carried over to weddings.

Gemach Hakehiloh belongs to the ongoing mutual tradition. When building societies became permanent in the eighteen forties, they took in continuing savers and grew, instead of winding up. Credit unions carry that forward as regulated, member owned funds, and the gemach, the interest free loan society our own community already runs, is the same spirit made charitable. Gemach Hakehiloh is this idea: an ongoing, growing, member owned mutual. And the oldest cousin of both is the rotating savings circle, found the world over, where a community simply takes turns with a shared pot.

Will Gemach Hakehiloh last? The claim is generational: the households a family seeds outnumber the most it ever owes, and at any moment far more pay in than draw out. It does lean on fresh intake, and can be thinned by withdrawals, but gently. Its growth is natural, carried by children who follow their parents, and the rate it needs is a share of the current membership, so it scales with the fund. A family that withdraws is not pure loss: it leaves its fees as capital and takes a future commitment off the books. The sharpest risk stays the thin capital, because interest free lending earns no margin, so bad debt is what the fundraising guards against.

Will Gemach Hamerkazi last? Its lending mechanism is designed not to overdraw the pool, because loans are allocated only when sufficient funds are available. From around year eleven, repayments carry most of the lending. While young it leans on a steady, constant intake of new units, not necessarily new families, since more children from one family count too. A gap in that intake breaks the cycle, so consistency matters more here. In its favour, it can plan a few years ahead, with time to recover from a slow patch. Its cost is paid in waiting, and how long depends entirely on the size of the loan, which is the very next thing we look at. And it need not rule out a credit union either, holding the capital such a home wants, its liquidity simply untested.

Here is the single most important thing we found. Gemach Hamerkazi has one dial that matters above all the others, and it is the size of the loan. If the model assumes that every family receives the full forty thousand pounds on the wedding date, without waiting for sufficient funds to become available, the projected cash balance quickly turns heavily negative. The queue is therefore not an incidental feature. It is what keeps the scheme within the money it actually holds. Bring the loan down to around twelve to fifteen thousand, and the picture changes. The fund pays nearly every wedding within a few years of the day, and it stays within its funds throughout. So the loan size is not a detail. It is the dial. A larger loan buys a longer wait. A smaller loan a shorter one. Everything else we tested moves the scheme far less than this one choice.

It is worth being plain about why this scheme, for our community in particular. We have two honest limits. Our families often live abroad for some years and only arrive later, so we cannot sign them up eighteen years before a wedding. And we do not have the communal influence to drive a very high sign-up. Gemach Hamerkazi is built precisely for that. A family can join whenever it arrives and simply pay in for ten years; there is no early membership gate to fall foul of. And it does not need scale or a big push: it works the same at a handful a month or a thousand a month, so long as the intake is steady. Gemach Hakehiloh, by contrast, needs exactly the two things we lack, catching families early and signing up a large share, which is the real reason its impressive coverage does not simply transfer to us.

There is one honest catch. Gemach Hamerkazi wants a steady flow of joiners, and steady flow has a cost. First, a founding drive is not a shortcut. If a large founding cohort joins at once, and their expected claims are more concentrated than a steady monthly intake would produce, the fund faces a future wave of demand. In our modelling, that reduces the sustainable loan from around sixteen thousand pounds to around eleven. Second, a steady flow means recruiting continually, which is more marketing effort and cost than a single founding push. And third, a scheme kept deliberately small turns over very little each year, so a fixed running cost weighs heavily on it, and below a certain size it cannot pay for itself. None of this sinks the scheme, but the committee should go in with eyes open.

So which model should we actually begin with. Gemach Hamerkazi may fit our recruitment pattern more naturally, because families can join later and the model does not require a very high initial sign-up. However, the likely loan size, the waiting period, the ongoing recruitment effort and the operating cost of maintaining a smaller scheme may make it less attractive in practice. Gemach Hakehiloh is harder to establish, because it requires earlier and broader participation. But if a pilot demonstrates sufficient uptake, it may ultimately offer families a stronger and more predictable benefit. The purpose of the pilot is therefore to test whether that level of participation can realistically be achieved.

This is the one part that needs a professional's sign-off, so take it as the direction of travel. Both models hold members' savings, and holding people's money is not a light thing. Taking deposits needs permission, and those savings need protecting; a credit union gives both, on a footing regulators have already examined. It is worth being precise about how each scheme commits itself. Gemach Hakehiloh creates future lending expectations linked to wedding dates. Gemach Hamerkazi controls its commitments through the queue, and only advances a loan when funds are available. The awkward fit is that the non returnable contributions and interest free lending sit oddly against ordinary shares, and that is what a professional would work through. But the reason to reach for a regulated home is simple: it is looking after people's savings.

Because a scheme's numbers can be measured, a pilot can be judged honestly. A Gemach Hakehiloh pilot can be tested against the community's own data, over the first three years and beyond. The measures are a small set of numbers. They are units funded against units enrolled, the headroom above the capital and liquidity floors, the loan amount reached, the experience of bad debt, and the growth in units. A Gemach Hamerkazi pilot would be judged differently. There the measures would be monthly enrolment and its consistency, the projected waiting period, the sustainable loan size, the operating cost per saving unit, the share of expected weddings funded within a set period, and the cash available for future loans. Either way, the thresholds on each measure are for the committee to set. They are your numbers, not the model's.

Several live tools have been built to go with this, in the same design you have been looking at, and they are on the community website now. One is the Gemach Hakehiloh simulator. One is the Gemach Hamerkazi simulator. There is a roster stress test that funds our own founding families on time and shows exactly when the money would run out. And a comparison view sets the handful of shared assumptions once and shows both schemes side by side. Every figure in this presentation can be reproduced, and challenged, in these tools.

The point of the tools is that nothing in them is fixed. In Gemach Hakehiloh, turn bad debt up, and watch the capital ratio fall below its floor and stay there for years. In Gemach Hamerkazi, lower the number of joiners a year, and watch the average wait stretch out. Every figure follows from the rules you set. The committee's job is not to accept the numbers. It is to judge whether the rules behind them are the right ones.

So here is what I would suggest. Rather than settle every detail now, we begin with a pilot. We invite families to start saving a hundred and fifty pounds a month, with fifteen of it going toward the fund's costs and the rest into their own pot. Then we build the exact scheme on the strength of two things: how well the sign-up goes, and the real data it gives us. Sold clearly and honestly, this is the safest way forward, because it commits the community to a beginning, not to every last rule, and it leaves room to make the scheme better as we learn. Thank you.