Operations
Part of Donor retention: the parts worth your attention
Donor retention case studies: where to find and read them
Donor retention case studies: where the named libraries are, what each one publishes, and how to screen a case before you copy it onto your own donors.
Donor retention case studies are the most quoted and least checkable documents in nonprofit marketing. A case worth acting on names the organization, the donor population it measured, the window it covered, the method it used and the result it got, including the part that did not work. Anything thinner is a claim wearing a result's clothes.
This guide covers where the sector's named case libraries and benchmark reports sit, how to screen a case before you trust it, and how to reproduce one claim on your own donor file before you change a campaign calendar. It does not rank cases, because a case that fits a small food bank rarely transfers to a national charity running a large monthly-giving program.
What a donor retention case study has to publish
A case earns the name when it publishes four things: the population — who the donors were, and roughly how many; the window — which months, or which cohort of first gifts; the method — what changed, what stayed the same, and whether a comparison group existed; and the result — what happened to renewal, stated against the same measure the case started with.
A fifth item decides whether the case teaches anything at all: the attrition reasons. A write-up that reports better renewal but never says why donors left removes the one detail that tells you whether the tactic can move to your list. Coded reasons separate "too much contact" from "moved away" from "no longer able to give", and each of those calls for a different response.
A case that names only a sector — "a hospital foundation", "an environmental charity" — or only a number is not evidence. No reader can locate the organization, check the window, or ask what else changed at the same time. Treat it as a lead, not a result, and say so in your notes.
Case 182 second-gift ask results
- 41%first-year retention, test group
- 29%first-year retention, control group
- 11%donors citing too many emails
- 45 daysgap after first gift
Dates matter for the same reason. A renewal figure measured in one quarter says little if the following quarter carried a major appeal, a suggested-giving change, or a wave of one-time gifts after a disaster. Without a date, a case cannot be compared with anything, including your own file.
Where the named case libraries and benchmark reports sit
The sector's checkable material falls into two groups: case libraries, which publish a charity's own story with the charity's name on it, and benchmark reports, which pool data from many organizations.
- SOFII, the showcase of fundraising innovation and inspiration, is a free case library run by the Chartered Institute of Fundraising in the UK. Entries name the charity, the campaign, the country and the result, so you can filter by cause and by organization size.
- NextAfteris a research lab that publishes its own donation page and email experiments, including the variation that lost. Read the losing one first; the losing detail is usually the transferable part.
- The Fundraising Effectiveness Project, published by the Association of Fundraising Professionals and GivingTuesday, is built from donor management system data and reports sector retention, including the gap between overall retention and new-donor retention.
- The M+R Benchmarks Study, published each spring from data that nonprofit digital programs submit, covers email list growth, message response and recurring giving, which is the material you use to size a normal month.
- The Blackbaud Institute Charitable Giving Report, an annual read drawn from Blackbaud's customer base, separates overall retention from recurring donor retention.
- Penelope Burk's Cygnus Applied Research, collected in Donor-Centered Fundraising, studies acknowledgement practice and what donors remember about being thanked.
- Adrian Sargeant'spublished retention research ties repeat giving to how quickly and how specifically a charity reports back on a gift.
- charity: wateris a named organization whose public promise — that private donors cover its operating costs so public gifts go to water projects — can be checked against its own materials.
Benchmarks are not cases. A benchmark report gives you a range your own result should clear; it does not tell you which tactic to run. A worked example from a comparable organization tells you what someone tried; it does not tell you what your file will do.
Reading cohort-level retention trends alongside a case is worth the time, because one annual rate hides the difference between donors acquired in a strong month and donors acquired in a weak one.
Tell a case from an advertisement
Publish your inclusion criteria before you read anything, or you will collect the cases that confirm the plan you already had.
Screen a case before trusting it
Source type
- Provider claim
- Lead worth testing
- Third-party review
- Method critique
- Customer case
- Strongest published form
- Award or listing
- Visibility
What it can support
- Provider claim
- Nothing more
- Third-party review
- Not your result
- Customer case
- If method shown
- Award or listing
- Not evidence
| Source type | What it is | What it can support |
|---|---|---|
| Provider claim | A vendor's statement about a client's result | A lead worth testing, nothing more |
| Third-party review | Assessment by a party the vendor does not pay, such as a think-tank review or an academic critique | A method critique, still not your result |
| Customer case | An organization describing its own program, with the method shown | The strongest published form |
| Award or listing | Selection by a panel whose criteria are often unpublished | Visibility, not evidence |
| Benchmark report | Pooled data from many organizations | A range to clear, not a tactic |
Record the commercial relationship beside every item. A case published by the platform that sold the software is not disqualified, but it is a different document from one published by the charity alone, and it should be read with the seller's interest in view.
Under the FTC's advertising substantiation standard, an objective claim needs a reasonable basis before it is made. Apply that test to the exact promise in front of you, not to the general idea behind it. "Our clients renew more" and "our clients renewed at a higher rate in the twelve months after the change" are different sentences, and only the second one tells you what was measured.
Reproduce one claim on your own file
Pick one material claim from a case and run it against your own donors before you change anything at scale.
Reproduce one result on your file
- Define population and comparison basis in writing
- Track cohort renewal and reason-coded attrition
- Watch one normal and one failure path
- Keep claim, inputs, version, decision together
- Write down what you rejected and why
- Set stop rule and review date first
- Write the claim in one sentence, with the population and the measure inside it.
- Pull the matching segment from your own file and count it before you start.
- Hold back a control group that keeps your current treatment.
- Fix the window in advancerenewal by cohort of first-gift month, for example — and write down why that window.
- Code attrition reasons so a departing donor is counted under a reason rather than under "lapsed".
- Name the decision rule and the person who signs off, then read the result against the rule.
GAO's guidance on assessing data reliability ties data quality to the use you intend: a dataset good enough for a trend line can be useless for a per-donor decision. Keep the record of who changed what, too. CISA's logging guidance explains why organizations retain event records, and the narrow version applies here — keep access, change and correction records, and do not claim that a log proves a fundraising result.
The donor retention section covers the renewal mechanics themselves, and the acquisition side covers what first-gift data can and cannot support.
Receipting, consent and the rules you cannot copy
Receipting, consent and privacy rules vary by province and state, and none of them transfer because another organization's case does it that way.
Canadian charities answer to the Canada Revenue Agency on charitable receipting, and, depending on where donors live, to CASL consent rules for commercial electronic messages, to PIPEDA, to British Columbia's PIPA, and to Quebec's Law 25. U.S. organizations carry their own overlay of state charitable solicitation registration and the substantiation rules that apply to appeals.
Confirm your own position with the CRA or a qualified charity lawyer before you copy another organization's process, and file the confirmation with the campaign record. A case describes what one charity did under its rules; it is not a licence to repeat the process under yours.
Common questions
Where can I find donor retention case studies I can actually cite?
SOFII's library names the charity, the campaign, the country and the result, and NextAfter publishes its own experiments with the losing variation included. The named studies — the Fundraising Effectiveness Project, the M+R Benchmarks Study, the Blackbaud Institute Charitable Giving Report — supply ranges rather than cases.
What makes a case study worth reading?
Four published items: population, window, method and result. Add a fifth, coded attrition reasons, and the case tells you whether the tactic might transfer. A case missing the organization name cannot be checked at all.
Is a benchmark report a case study?
No. A benchmark pools many organizations and gives a range to clear. A case describes one organization's program in one window. Confusing the two is how a sector average ends up quoted as a tactic.
Why can't I cite a case that does not name the organization?
Because nothing in it can be verified. You cannot check the donor population, the dates, the comparison group or what else changed during the test, and you cannot ask the organization what happened next. Anonymized cases are useful as ideas to test, never as proof.
How do I reproduce a case result on my own donors?
Copy the claim into one sentence, pull the matching segment, hold back a control group, fix the window before you start, code attrition reasons, and write the decision rule and the sign-off before you read the result.
