Donor retention rate calculator

Three numbers from your CRM give you your retention rate, the revenue you kept, and what is at stake next year, against the 40 to 45% sector benchmark.

Donors who gave last year

Unique donors (households), not gift count. A monthly donor counts once.

Of those, how many gave again this year

The same people, giving at least once this year. Most CRMs can run a "gave in both years" query.

Average gift

Total raised this year divided by number of gifts.

Your donor retention rate

42.0%

You kept 105 of 250 donors this year.

Revenue retained this year: $12,600
Revenue at stake next year: $7,320

You're inside the 40 to 45% sector benchmark range. The next gains usually come from first-time donors, the leakiest segment.

Retention rate = donors who gave in both years divided by donors who gave last year. The benchmark range comes from the Fundraising Effectiveness Project's sector reports.

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How this is calculated

Count unique donors, not gifts: a monthly donor or a household that gave five times counts once.

Retention rateequalsgave in both years ÷ gave last year × 100

Revenue retainedequalsreturning donors × average gift

Donors lapsing next yearequalsreturning donors × (1 − retention rate)

Revenue at stakeequalsdonors lapsing × average gift

Revenue at stake assumes this year's retention rate repeats next year.
The gap to the benchmark is the number of extra donors you would need to keep to reach 40%, times your average gift.
The 40 to 45% benchmark is where overall donor retention has sat for the past decade in the Fundraising Effectiveness Project's sector reports.

Why retention beats acquisition

Take a food bank with 500 donors, a 42% retention rate, and a $120 average gift. Next year, 290 of those donors are gone, and the development team has to recruit 290 new ones (through ads, events, and appeals that often cost close to the first gift's value) just to end the year where it started. That treadmill is what the retention rate measures: the lower the rate, the faster you run to stand still.

Now move the rate instead. Each point of retention on those 500 donors is 5 donors and $600 that arrives next year with no acquisition spend at all. Lifting 42% to 50% keeps 40 extra donors and roughly $4,800, and the gain compounds: donors who give a second year retain at around 60% (per the Fundraising Effectiveness Project), so the donors you keep this year are far cheaper to keep again next year. Acquisition fills the bucket; retention fixes the hole.

The three moments retention is won

Retention isn't a year-round campaign. It comes down to three touchpoints, and most lapsed donors can name the one that failed them.

The receipt, in the first sixty seconds

A receipt that says "transaction confirmed" tells the donor a machine noticed. A receipt that arrives within a minute, names the fund ("your $100 went to the weekend meal program"), and reads like a person wrote it is the first retention touch, and the only one every single donor receives. Get the tax details right too: a clean year-end statement saves donors a scramble in April and saves your office a week of one-off requests.

The first 90 days

Most lapsed donors never decided to leave; they just never heard anything worth coming back for. One thank-you that isn't an ask within 30 days, and one short update showing the gift at work by day 90 (three sentences and a photo beat a newsletter), is enough to turn a transaction into a relationship. First-time donors are the leakiest segment in every dataset, so this window is where most benchmark gaps live.

The renewal ask

A generic year-end blast renews donors at a fraction of what a specific ask does. Reference last year's gift by amount and fund ("renew your $100 to the meal program"), and time the ask to the anniversary of the gift rather than whenever campaign season lands on your calendar. A donor who gave in March is most likely to give again in March.

How recurring giving changes the curve

Everything above assumes the donor re-decides every year. Recurring giving removes the decision. An annual donor renews only if your receipt, your 90-day touch, and your renewal ask all land; a monthly donor keeps giving unless they actively cancel or a card expires. The curve inverts: instead of fighting to keep four donors in ten, you're recovering the small share who churn involuntarily.

The revenue math moves the same direction. A $25 monthly donor gives $300 a year, well above most organizations' average one-time gift, and never needs a renewal ask. The practical playbook: put monthly first on your donation page, invite one-time donors to upgrade at the receipt and the 90-day touch, and make payment details self-service so an expired card is a 30-second fix instead of a lost donor. Our guide on how to increase recurring donations covers the ask itself, and Givebear's donation management portal handles the receipts, donor records, and self-service card updates that keep monthly donors from churning silently.

Retention questions, answered

How do you calculate donor retention rate?

Divide the number of donors who gave in both years by the number who gave in the earlier year, then multiply by 100. If 480 households gave last year and 204 of them gave again this year, your retention rate is 42.5%. Count unique donors, not gifts: a monthly donor counts once, and a household that gave five times counts once. Most CRMs can produce both numbers with a gave-in-both-years query.

What is a good donor retention rate for nonprofits?

The Fundraising Effectiveness Project, which aggregates giving data from thousands of organizations, has measured overall donor retention at roughly 40 to 45 percent for most of the past decade, with recent years at the lower end of that range. Repeat donors retain at around 60 percent while first-time donors come back at well under half that rate, so your mix of new versus established donors moves your average. Treat 45 percent as a solid result and anything above 50 percent as genuinely strong.

Why is donor retention more cost-effective than acquisition?

Acquiring a donor means paying for ads, events, or mailings before the first dollar arrives, and many programs spend close to the first gift's value to get it. A retained donor costs a receipt, a thank-you, and a renewal ask: a few dollars of staff time and tooling. The compounding effect matters more, because repeat donors retain at far higher rates than first-time donors and tend to increase their gift size, so each donor you keep is worth more than the average donor you recruit.

Does recurring giving improve donor retention?

Dramatically, because it flips the default. An annual donor must actively decide to give again every year; a monthly donor keeps giving unless they actively cancel or their card fails. Most of the churn recurring programs do see is involuntary (expired cards, bank changes) rather than a decision to leave, which is why card account updaters and a donor portal where supporters fix their own payment details recover most of it.

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Every calculator and template is on the free tools page.

How to increase recurring donations

The playbook for converting one-time givers into monthly supporters who never need a renewal ask.

Donation management portal

Donor CRM, automatic receipts, and self-service payment updates that cut involuntary churn.

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