Your donor retention rate can look precise and still mislead your team.

That happens when the formula is right, but the inputs are wrong.

Maybe your team counted gifts instead of donors. Maybe recurring gifts were counted more than once. Maybe the report mixed calendar year and fiscal year data. Maybe first-time donors and repeat donors were grouped together, which made the real issue harder to see.

That matters because wrong numbers lead to wrong decisions.

Donor retention rate is more than a board report metric. It is a signal of whether donor relationships are staying warm after someone gives.

If your retention is low, something in the donor journey may be breaking down. It may be weak follow-up, poor first-time donor onboarding, outdated contact data, generic communication, missed lapsed donor reactivation, or simply a small team without enough capacity to follow up with everyone well.

That is why this number matters.

In this post, I’ll share:

• What donor retention rate means

• The donor retention rate formula

• How to calculate it step by step (including a calculator)

• What counts as a retained donor

• Common mistakes to avoid

• Donor retention benchmarks

• How to use the number to improve donor engagement

Let's get started.

TL;DR

Donor retention rate measures the percentage of donors who gave in one period and gave again in the next period.

The formula is: Donor Retention Rate = Retained Donors ÷ Donors From Previous Period × 100

The formula is simple. The hard part is making sure the data behind it is clean.

What Is Donor Retention Rate?

Donor retention rate is the percentage of donors who gave during one time period and gave again during the next time period.

For example, if 1,000 donors gave last year and 430 of those same donors gave again this year, your donor retention rate is 43%.

Donor retention rate is different from total revenue, number of gifts, number of new donors, number of active donors, donor lifetime value, donor churn, and lapsed donor count.

This distinction matters because a nonprofit can grow revenue while the donor base quietly shrinks.

The Fundraising Effectiveness Project’s Q4 2025 report showed this clearly. Total charitable dollars grew by an estimated 5.0% in 2025, while donor counts declined by 3.6%. Overall retention edged up only slightly, from 43.1% to 43.3%.

More money from fewer donors may work for a season. But long term, you need donors to stay connected.

Why Donor Retention Rate Matters

Donor retention rate helps your team understand whether donors are staying engaged after they give.

A stronger retention rate can support:

• More predictable revenue

• Better donor relationships

• Stronger annual giving performance

• More recurring giving opportunities

• Less dependence on new donor acquisition

• Better long-term fundraising health

A weak retention rate may point to:

• Inconsistent follow-up

• Weak first-time donor onboarding

• Poor stewardship

• Generic communication

• Outdated contact data

• Missed lapsed donor reactivation opportunities

• Too much focus on acquisition and not enough focus on retention

Most nonprofits do not lose donors only because people stop caring. Many lose donors because engagement stops.

The number gives your team a place to start.

The Donor Retention Rate Formula

Here is the basic donor retention rate formula:

Donor Retention Rate = Retained Donors ÷ Donors From Previous Period × 100

Here is what each part means:

• Retained donors: Donors who gave in the first period and gave again in the next period.

• Donors from previous period: The total number of donors who gave in the first period.

• Time period: Usually calendar year to calendar year or fiscal year to fiscal year.

For example, if 2,000 donors gave in 2025 and 860 of those same donors gave again in 2026:

860 ÷ 2,000 × 100 = 43%

Your donor retention rate is 43%.

Blackbaud’s knowledgebase article on how to calculate donor retention rate is a useful example of how CRM vendors define this calculation.

How to Calculate Donor Retention Rate Step by Step

The formula is simple, but the setup matters.

Use this process.

1. Choose your time window

Pick the period you want to compare.

Common options include:

• Calendar year to calendar year

• Fiscal year to fiscal year

• Campaign year to campaign year

• Giving day to giving day

• Monthly donor period to monthly donor period

For your main organizational donor retention rate, use either calendar year or fiscal year. Do not mix time windows.

2. Pull donors from the first period

Pull all unique donors who gave during the first period.

For example, you may pull all donors who gave between January 1 and December 31, 2025. This is your starting cohort.

3. Identify which donors gave again

Now look at the next period.

Of the donors who gave in 2025, how many also gave in 2026?

Only count donors from the original group. New donors from 2026 do not belong in the retained donor count.

4. Run the formula

Use the formula:

Retained donors ÷ donors from previous period × 100

If 1,500 donors gave in 2025 and 630 of those donors gave again in 2026:

630 ÷ 1,500 × 100 = 42%

Your donor retention rate is 42%.

5. Review the result by segment

Do not stop with one number.

Review retention by:

• First-time donors

• Repeat donors

• Monthly donors

• Major donors

• Event donors

• Giving day donors

• Program-specific donors

• Acquisition source

• Communication channel

One overall retention number can hide the real issue.

What Counts as a Retained Donor?

A retained donor is someone who gave in the first period and gave again in the next period.

They do not need to give the same amount. They do not need to give to the same campaign. They do not need to give on the same date.

But they do need to be matched consistently in your donor database.

Before you report donor retention rate, define your rules for:

• Spouses and households

• Recurring gifts

• Soft credits

• Pledge payments

• In-kind gifts

• Event ticket purchases

• Corporate matching gifts

• Donor-advised fund gifts

• Duplicate records

There is not always one universal answer for every organization. The most important thing is consistency.

Define your rules. Document them. Use the same approach every time you report the metric.

Donor Retention Rate Example

Here is a simple example.

Calculation:

630 ÷ 1,500 × 100 = 42%

This means 42% of the donors who gave in 2025 gave again in 2026. The other 58% did not give again during that period.

That does not mean they are gone forever. But it does mean they need attention.

First-Time Donor Retention vs Repeat Donor Retention

Overall donor retention is useful, but it is not enough. You also need to know which donors are staying.

First-time donor retention rate

First-time donor retention measures how many donors who gave for the first time in one period gave again in the next period.

Formula:

First-Time Donor Retention Rate = First-Time Donors Who Gave Again ÷ First-Time Donors From Previous Period × 100

This metric helps you evaluate your welcome and onboarding experience.

If first-time donor retention is low, ask:

• Did new donors receive a quick thank-you?

• Did they hear what their gift made possible?

• Were they invited into the next step?

• Did they receive a welcome series?

• Were they added to the right segment?

First-time donors often need more than a receipt. They need a reason to stay connected.

Repeat donor retention rate

Repeat donor retention measures how many donors with prior giving history gave again.

Formula:

Repeat Donor Retention Rate = Repeat Donors Who Gave Again ÷ Repeat Donors From Previous Period × 100

This helps your team understand the strength of ongoing stewardship.

If repeat donors are lapsing, the issue may not be acquisition. It may be communication, gratitude, impact reporting, or personal follow-up.

Monthly donor retention rate

Monthly donor retention should usually be tracked separately because monthly donors behave differently from one-time donors.

A monthly gift may stop because of:

• Canceled cards

• Expired cards

• Failed payments

• Donor-requested cancellations

• Payment processor changes

• Changed giving preferences

This is where follow-up matters. A stopped monthly gift does not always mean the donor wanted to leave. Sometimes they simply need a helpful reminder or a payment update link.

Average Donor Retention Rate Benchmarks

Benchmarks can help you understand whether your donor retention rate is generally above or below sector patterns.

But use them carefully.

Your best benchmark is your own year-over-year trend. A small local nonprofit, large university, healthcare foundation, faith-based ministry, and community arts organization may all see different donor behavior.

For sector context, start with trusted sources like the Fundraising Effectiveness Project. FEP provides current fundraising effectiveness data and reports that help nonprofits track giving, donor counts, and retention patterns.

You can also review guides from Neon One and Keela, which explain donor retention rate, benchmarks, and practical ways to think about donor relationships. For a quick calculator, Bloomerang offers a donor retention calculator.

The key is not to chase someone else’s number. Use benchmarks to ask better questions.

If your donor retention rate is below the sector average, ask why. If it is improving, ask what changed. If first-time donor retention is weak, look at onboarding. If repeat donor retention is falling, look at stewardship.

The number should lead to action.

How to Pull Donor Retention Data From Your CRM

You do not need a complicated system to calculate donor retention rate. You need clean rules and clean data.

In most CRMs or donor databases, the process looks like this:

1. Export unique donors who gave in the first period.

2. Export unique donors who gave in the second period.

3. Match donor IDs across both periods.

4. Count how many first-period donors also gave in the second period.

5. Divide that number by the total first-period donors.

6. Repeat the process by segment.

Use unique donor IDs whenever possible.

Do not rely only on names or emails. People move, change emails, get married, give through spouses, or appear in the database more than once.

Cleaner data gives your team a clearer number. And a clearer number gives your team a better chance to act.

How to Interpret Your Donor Retention Rate

After you calculate donor retention rate, do not stop. Ask better questions.

If retention is low, ask:

• Are first-time donors receiving a strong welcome series?

• Are donors thanked quickly and personally?

• Are donors hearing what their gift made possible?

• Are lapsed donors being identified early?

• Is contact data clean enough for follow-up?

• Are donors receiving too many generic appeals?

• Are monthly donors receiving payment update reminders?

• Are event donors invited into the next step?

• Are donor preferences being respected?

You do not improve donor retention by staring at the percentage. You improve it by changing what happens after someone gives.

That is the practical value of the metric. It helps your team see where engagement is breaking down.

How Donor Retention Connects to Lapsed Donor Reactivation

Donor retention shows who stayed. Lapsed donor reactivation shows who stopped giving and may need thoughtful follow-up.

If donor retention is falling, look at your lapsed donor segments.

You may find:

• First-time donors who never gave again

• Monthly donors whose payments stopped

• Event donors who never entered an annual giving track

• Giving day donors who did not receive follow-up

• Mid-level donors who stopped responding

Those groups need different messages.

A donor who gave once after an event needs a different follow-up than a former monthly donor whose card expired. This is where segmentation matters.

Retention tells you there is a problem. Reactivation helps you decide what to do next.

How to Improve Donor Retention After You Calculate It

Improving donor retention usually starts with better engagement.

Here are practical next steps:

• Send faster thank-you messages.

• Create a first-time donor welcome campaign.

• Follow up with impact updates.

• Segment donors by giving history.

• Use surveys to learn donor preferences.

• Clean contact data before campaigns.

• Build lapsed donor reactivation workflows.

• Create event follow-up campaigns.

• Send monthly donor payment reminders.

• Track donor engagement signals.

• Review retention by segment every quarter.

This is not only about sending more messages. It is about sending more useful messages.

The goal is to help donors feel connected to the mission after they give.

How EverRaise Helps Teams Act on Donor Retention Data

Calculating donor retention rate is only the first step. The real work begins after you know where retention is breaking down.

That is where EverRaise can help.

EverRaise is an AI engagement team for relationship-driven organizations. It helps nonprofits, universities, and other teams build better campaigns, reach more people, keep more supporters, and raise more money without adding more manual work.

For donor retention, EverRaise helps your team move from a retention report to a ready-to-review engagement campaign.

If first-time donors are not giving again, EverRaise can help your team build a first-time donor follow-up campaign. If monthly donors are lapsing, EverRaise can help support payment update reminders, SMS outreach where appropriate, and follow-up workflows. If event donors are not staying engaged, EverRaise can help launch event follow-up campaigns. If your data is messy, EverRaise can support contact validation and data hygiene before outreach begins.

EverRaise supports:

• Campaign builder

• AI voice calls

• SMS

• Email

• Campaign workflows

• Automated follow-up

• Contact validation

• Data hygiene

The goal is not to replace your team. Your team still brings the mission, judgment, donor knowledge, and care. EverRaise gives your team more capacity to follow up with more people in a way that feels timely, personal, and useful.

Final Takeaway

Donor retention rate is not just a reporting metric. It is a signal of whether donor relationships are staying warm.

The formula helps your team measure retention. The real work begins after the calculation.

Once you know your number, your next step is to improve the follow-up that keeps donors connected.

Engagement drives retention. Retention drives revenue.