Two decisions, and one of them is already made for you. Run it for two weeks — that question is settled, and this page explains why. Which two weeks is the real decision, and it's worth more thought than most schools give it.
This page owns the date strategy: which weeks of the school year to pick and why, and how long to run. Get the window right and the rest of the fundraiser has an easier job.
Why two weeks
For the full sequence once your dates are set, see the week-by-week planning timeline, or the complete guide for everything else.
Two weeks is the recommendation because it maximizes donations while keeping student engagement high. Both halves of that matter, and they pull against each other in opposite directions.
Shorter than two weeks and you lose the second chance. A one-week fundraiser opens and closes before the families who needed a reminder ever get one. Real families miss the first email — they're travelling, the kid was off sick, the message went to a spam folder. Two weeks gives everyone a second and third opportunity to notice.
Longer than two weeks and you lose the deadline. Organizers reliably assume more time means more money. It doesn't, and the reason is structural: donations cluster at the opening and the closing, because those are the two moments with a reason to act. A four-week fundraiser doesn't add a third cluster — it adds two flat weeks in the middle and gives every family a longer window to file the whole thing under "later." Meanwhile student attention, which is what makes the class competition work, is gone by week three.
There's also a workload argument. A read-a-thon takes less than one hour a week to manage. Doubling the length doubles the weeks you're managing it without doubling anything else.
The weeks to avoid
Four things to check before you commit. All four are avoidable and all four cost you money.
State testing weeks. The strongest reason to move your dates. During testing, teachers cannot give you class time and have no attention to spare — and teacher involvement is the highest-leverage variable you have. A read-a-thon during testing week is a read-a-thon running without its best engine.
The week either side of a break. The week before, families are checked out and planning. The week after, they're catching up on everything that piled up. Email open rates in both windows are poor, and your kickoff depends on being opened.
Anything else asking your families for money. A book fair, spirit wear, a class trip deposit, a band uniform drive. Two asks in the same month suppress both, and the suppression isn't even — the second ask usually takes the bigger hit. Four to six weeks of separation is a reasonable minimum. If your school runs a book fair, running the read-a-thon a month clear of it works well and the two reinforce each other thematically.
The last two weeks of the school year. Attention is gone, teachers are closing out grades, and your close-out — the part that sets up next year — lands after everyone has left the building.
The windows that work
What you want is a stretch where the school year has settled but attention hasn't drifted. In practice that points at three periods.
Several weeks into the fall term. Routines are established, families are engaged, and nothing has burned them out yet. The strongest general-purpose window for most schools, and it puts the money in your account early enough to actually spend on the year it was raised for.
Mid-winter, after the holidays. An underrated window. There's no competing ask, indoor reading time is an easy sell, and the holiday-spending fatigue that organizers worry about is mostly a myth where sponsorship is concerned — the people donating are grandparents giving a small amount to a specific child, not families making a discretionary purchase.
Early spring, clear of testing. Works well if you can find the gap. Check your testing calendar first, not second.
If you're running a library or summer program rather than a school year event, the constraints are different — see summer reading and library programs.
Signing up is free and takes about ten minutes, with no contract and no fundraising minimum — so you can lock a window as soon as your calendar clears rather than waiting for a budget decision. Start for free.
Which day to start on
A small decision with a real effect. Start on a Monday or Tuesday and end on a Friday or the following weekend.
The logic is that your two highest-value moments both want a good day. The kickoff wants a day when the whole school is present and teachers can mention it — so not a Friday, and not a day with an assembly already scheduled. The close wants a weekend adjacent to it, because the last-48-hours push performs well when families have unhurried time to sit with a phone and send messages.
Avoid starting the day after a long weekend, and avoid any start date where a chunk of your student body is away on a trip.
The honest part
The perfect window usually doesn't exist. Most school calendars have testing somewhere, a book fair somewhere, and breaks carving up the rest — and if you hold out for a clean six-week run of nothing, you'll run out of year.
So rank the constraints rather than trying to satisfy all of them. Testing weeks are close to non-negotiable. A competing money ask is worth moving for. The week either side of a break is worth avoiding if you can and survivable if you can't. Everything else is preference.
And a good window badly executed loses to a mediocre window run well. If choosing dates has become the thing delaying your fundraiser by a term, pick the least-bad fortnight and spend your energy on the kickoff instead.
What happens next
Once your window is set, work backwards. Six weeks of lead time is comfortable, four is workable, three is possible — the planning timeline lays out each stage. If your dates need principal or district sign-off, arrive with them already de-conflicted; the approval guide covers that conversation.
Then set your goal and brief your staff with the teacher's guide. Your fundraising coach is available Monday to Friday, 8am–5pm Central, by phone, text, or email if you want a second opinion on a window.