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Membership & Donation Revenue Forecaster

Project your institution's future financial health by forecasting revenue from your most critical sources: memberships and donations.

/ 01

Strategic Budgeting

Plan your annual budget with data-backed revenue projections.

/ 02

Set Growth Targets

Establish realistic goals for your development and membership teams.

/ 03

Demonstrate Impact

Show stakeholders the potential growth and financial stability of your institution.

The calculator

Run the numbers

Revenue Forecaster

Membership Forecast

Enter a positive number for growth, negative for decline.

The average fee across all your membership tiers.

Donation Forecast

Projected growth from campaigns and appeals.

Results

Enter values and click Calculate to see results

The theory

Understanding the Forecast.

This tool uses a straightforward growth model to project future revenue. It calculates the forecasted revenue from memberships and donations separately and then combines them for a total projection.

/ Formula

Donation Formula: Last Year's Donations * (1 + Growth Rate)

These projections are essential for strategic planning, allowing you to allocate resources effectively and set ambitious but achievable fundraising goals for the upcoming year.

Membership: (Current Members * (1 + Growth Rate)) * Avg. Revenue per Member
/ Industry standard

A conservative 3-5% growth rate is often a reasonable starting point for a stable institution. Look at your historical data from the past 3-5 years to set realistic targets, and review and adjust your forecast quarterly.

Questions, answered

Frequently asked questions.

To get the most accurate number, divide your total membership revenue from the past year by the total number of members you had during that year. If you have distinct tiers (e.g., Individual, Family, Patron), you can calculate a weighted average for better precision.
This depends heavily on your institution's context. Look at your historical data from the past 3-5 years. Are you in a growth phase? Have you launched new membership drives? Are there external economic factors? A conservative estimate is usually best; it's better to under-promise and over-deliver. A 3-5% growth is often a reasonable starting point for a stable institution.
This calculator is designed primarily for cash revenue forecasting, as that's most relevant for budgeting operational expenses. While in-kind donations (like donated services or equipment) are valuable, they should be tracked separately as they don't contribute to cash flow in the same way.
If the forecast falls short of your goals, it's a clear signal to act. You can use this data to make a case for investing more in membership acquisition (e.g., marketing) or donor stewardship. For example, if donation growth is flat, you might plan a new, targeted fundraising campaign. If member growth is slow, you might introduce a new benefit to your membership packages.
It's good practice to create an annual forecast as part of your budget planning process. However, it's also wise to review and adjust it quarterly. If a major fundraising campaign over-performs or a membership drive is less successful than hoped, you can update your inputs to keep the forecast relevant and accurate throughout the year.
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