# Year-End Giving: The Risk of Leaning on One Month

December carries more of the year than any other month. Leaning too hard on it is a concentration risk.

## Key takeaways
- December alone accounts for 37% of annual online revenue for the average nonprofit, and the last week of the year adds 10% (M+R Benchmarks).
- That concentration is a strength and a risk: a single weak December can put a large share of the year's revenue in doubt at once.
- Hunger and poverty organizations lean hardest on the month, raising 46% of annual online revenue in December (M+R Benchmarks).
- Monthly giving is the steadiest counterweight, at 27% of online revenue for the average nonprofit, because it does not wait for December.
- Donor Insights reads your own giving records to show how much of your year lands in December and whether the rest of the calendar is filling in.

For the average nonprofit, December brings 37% of the entire year's online revenue, according to [M+R Benchmarks](https://www.nonprofitpro.com/article/mr-benchmarks-2026-what-online-giving-growth-means-for-your-donor-file/). More than a third of the year arrives in one month, and the last week alone carries 10%. That concentration is real money and a real surge of giving, and it is also a risk: when one month decides the year, a single weak December can undo eleven good ones.

## How much of the year lands in December?

More than most teams plan for. Across the sector, December accounts for 37% of annual online revenue, the final week of the year adds 10%, and December 31 by itself carries 4%. The year does not arrive evenly. It arrives in a rush at the end, and the closer you get to the last day the denser the giving becomes.

**37%** — of annual online revenue arrives in December for the average nonprofit ([M+R Benchmarks 2026 (via NonProfitPRO)](https://www.nonprofitpro.com/article/mr-benchmarks-2026-what-online-giving-growth-means-for-your-donor-file/))

Share of annual online revenue by year-end period (M+R Benchmarks 2026)

| Period | Share of annual online revenue |
| --- | --- |
| All of December | 37% |
| Last week of December | 10% |
| December 31 alone | 4% |

The pattern is old and it is durable. Tax deadlines, holiday feeling, and a wave of year-end appeals all land in the same few weeks, and donors respond to the urgency. None of that is a problem on its own. The problem starts when the calendar quietly turns a busy month into the month the whole year depends on.

## Why is that concentration a risk?

Because a share that large, packed into weeks, has almost no room to recover if it slips. If more than a third of your year rides on December and a storm, a news cycle, a delayed appeal, or a slow economy softens giving by even a fifth, the shortfall lands all at once and there is no month left to make it back. Revenue that is spread across the year gives you time to react. Revenue stacked into the final weeks does not.

This is the same shape as [donor concentration risk](https://donorinsights.com/articles/donor-concentration-risk), where too much of the total depends on too few donors. Year-end dependency is concentration across time rather than across donors, and it carries the same danger: a single bad event, in a single window, can put a disproportionate part of the year in doubt.

## Which organizations lean hardest on December?

The ones whose cause peaks with the holidays. Hunger and poverty organizations raise 46% of their annual online revenue in December, the highest share of any sector M+R tracks. Nearly half the year in one month is a heavy dependency, and it means the plan for December cannot be an afterthought written in November.

**46%** — of annual online revenue that hunger and poverty organizations raise in December, the highest concentration of any sector ([M+R Benchmarks 2026 (via NonProfitPRO)](https://www.nonprofitpro.com/article/mr-benchmarks-2026-what-online-giving-growth-means-for-your-donor-file/))

The lesson is not that a strong December is bad. A strong December is how many organizations fund the mission. The lesson is that the higher your December share climbs, the more the rest of the year has to work to give that month somewhere to fall back to.

## How do you reduce December dependency?

Not by raising less in December, but by building the rest of the calendar so the month is a peak rather than the whole range. In order:

1. Grow monthly giving, the steadiest counterweight to a seasonal spike. It arrives every month regardless of the season, and it already makes up 27% of online revenue for the average nonprofit. See our guide to [recurring giving benchmarks](https://donorinsights.com/articles/recurring-giving-benchmarks).
2. Keep the donors December brings in, because a year-end donor who never gives again turns a peak into a one-time event. Second-gift conversion and [donor retention](https://donorinsights.com/articles/donor-retention-rate) are what carry December's names into the rest of the year.
3. Give the other eleven months real moments to give, so spring and summer are not dead air that leaves December carrying everything.
4. Watch your December share as a number, not a feeling, so you can see whether the rest of the year is filling in or the month is quietly taking on more of the load.

**27%** — of online revenue comes from monthly giving for the average nonprofit, revenue that does not wait for December ([M+R Benchmarks 2026 (via NonProfitPRO)](https://www.nonprofitpro.com/article/mr-benchmarks-2026-what-online-giving-growth-means-for-your-donor-file/))

> December alone accounted for 37% of annual online revenue. — M+R Benchmarks 2026

Read that as an opportunity in November and as an exposure in January. Both readings are true, and the organizations that steward donors well hold both at once: they work December hard, and they spend the rest of the year making sure December never has to save them.

## A worked example: what a soft December costs

Picture a fictional organization, Cedar Hollow Food Bank, that raises $500,000 online in a year with 37% of it, about $185,000, arriving in December. The numbers below are illustrative, chosen to show the shape of the risk rather than to stand as a benchmark.

Illustrative effect of a soft December on a hypothetical $500,000 online year

| Scenario | December revenue | Full-year revenue |
| --- | --- | --- |
| Normal December (37% of the year) | $185,000 | $500,000 |
| December comes in 20% under plan | $148,000 | $463,000 |

A single soft December, down a fifth, opens a $37,000 hole in weeks, and because it lands at the very end of the year there is no time left to close it. If Cedar Hollow had carried a larger monthly-giving base into December, that recurring revenue would have kept arriving through the shortfall and softened the blow. The [methodology](https://donorinsights.com/methodology) behind these seasonality and cohort views reads your own giving records, so the December share you plan around is your file's, not a sector average. For the wider set of numbers worth watching, see our guide to [fundraising KPIs](https://donorinsights.com/articles/fundraising-kpis).

## FAQ

**What share of annual giving happens in December?**

For the average nonprofit, December brings 37% of annual online revenue, with the last week adding 10% and December 31 alone carrying 4% (M+R Benchmarks). Hunger and poverty organizations lean hardest, at 46% in December.

**Why is heavy year-end giving a risk?**

Because a large share of revenue packed into a few weeks has little room to recover if it slips. When more than a third of the year rides on December, a soft month lands all at once and there is no time left to make it back.

**How do you reduce December dependency?**

Grow monthly giving as a steady counterweight, keep the donors December brings in so a peak does not become a one-time event, give the other months real moments to give, and track your December share as a number rather than a feeling.

**Is a strong December a bad thing?**

No. A strong December funds the mission for many organizations. The point is that the higher your December share climbs, the more the rest of the year has to work so that one month is a peak rather than the whole year.

## Sources
- [M+R Benchmarks 2026, December and year-end concentration (via NonProfitPRO)](https://www.nonprofitpro.com/article/mr-benchmarks-2026-what-online-giving-growth-means-for-your-donor-file/)
- [M+R Benchmarks, fundraising and monthly giving data](https://mrbenchmarks.com/fundraising/)
- [M+R Benchmarks 2026 (2025 data), report home](https://mrbenchmarks.com/)

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Source: DonorInsights.com — https://donorinsights.com/articles/year-end-giving