Fundraising ROI & Cost per Dollar Raised Calculator: Net Revenue, Response and Donor Cost
Measure a fundraising campaign or channel: cost per dollar raised against the published reasonable-cost guideline for that channel, ROI, net revenue, response rate, average gift, cost per new donor, break-even response and long-run return with donor lifetime value.
How it works
Cost per dollar raised = cost ÷ gross revenue · ROI = (revenue − cost) ÷ cost · Net revenue = revenue − cost · Response rate = gifts ÷ contacts · Average gift = revenue ÷ gifts · Break-even response = (cost ÷ contacts) ÷ average gift · Cost per new donor = cost ÷ new donors · Long-run ROI = (new donors × lifetime value − cost) ÷ cost
Cost per dollar raised (CPDR) divides what a campaign cost by what it raised; its mirror image, return on investment, divides the net result by the cost. A campaign that spends $0.25 to raise $1 has an ROI of 300%. Count every cost, including the share of staff time spent on the campaign, so that channels can be compared fairly. Channels differ widely. The reasonable-cost guidelines published by fundraising author James Greenfield expect $1.25–$1.50 per dollar for direct-mail acquisition, $0.20–$0.25 for renewal mailings, $0.50 for benefit events (gross revenue and direct costs only), $0.10–$0.20 for volunteer-led personal solicitation and capital campaigns, and about $0.20 for corporations and foundations. Acquisition usually loses money on the first gift and is an investment in donors who give again, which is why the calculator also shows the cost per new donor and the long-run return with an expected lifetime value. Across all its fundraising, the BBB Wise Giving Alliance asks a charity to spend no more than 35% of related contributions. The response rate, average gift and break-even response explain why a campaign did well or badly: a list that responds below the break-even rate needs a better list, a stronger ask or a cheaper package. These are guidelines, not rules; your own history by channel is the best benchmark.
Worked example
A $42,000 direct-mail acquisition to 40,000 households brings 520 gifts (1.30% response) totalling $56,000, an average of $107.69. The cost per dollar raised is 42,000 ÷ 56,000 = $0.75, better than the $1.25–$1.50 acquisition guideline, and the ROI is (56,000 − 42,000) ÷ 42,000 = 33% with $14,000 net. Each contact cost $1.05, so the break-even response was 1.05 ÷ 107.69 = 0.98% (390 gifts). The 480 new donors cost $87.50 each; at a $250 lifetime value they are worth $120,000, a long-run ROI of 186%.
Sources: James M. Greenfield: Fundraising reasonable cost guidelines (OneOC) · AFP: Evaluating fundraising costs · BBB Wise Giving Alliance: Standards for Charity Accountability (Standard 9, 35%)
Frequently asked questions
How do you calculate cost per dollar raised?
Divide the total cost of the fundraising activity by the gross amount it raised. $42,000 spent to raise $56,000 is $0.75 per dollar raised. Include staff time and overhead allocated to the campaign.
What is a good cost per dollar raised?
It depends on the channel. Widely cited guidelines are $0.20–$0.25 for renewal mailings, $0.50 for special events, $0.10–$0.20 for major gifts and capital campaigns, about $0.20 for foundations and corporations, and $1.25–$1.50 for direct-mail acquisition. Across all fundraising, the BBB standard is no more than 35% of related contributions.
How is fundraising ROI different from cost per dollar raised?
They use the same two numbers. ROI = (revenue − cost) ÷ cost, so a cost per dollar of $0.25 is an ROI of 300%, $0.50 is 100% and $1.00 is 0% (break-even).
Should staff salaries be included in campaign cost?
Yes, for honest comparison between channels: allocate the hours of the people who ran it. Excluding staff is why events and major gifts can look cheaper on paper than they are. Published event guidelines count direct costs only, so say which basis you use.
Why does donor acquisition lose money?
Most new donors give a small first gift, and finding them costs postage, lists or ads. The investment pays off when they give again; a donor who renews for several years can be worth several times the cost of acquiring them.
What is a break-even response rate?
The response at which the campaign covers its cost: cost per contact divided by the average gift. At $1.05 per piece and a $107.69 average gift you need 0.98% to break even.
Related calculators
Fundraising cost guidelines are sector-wide rules of thumb, not rules. Your auditor’s, board’s and funders’ definitions govern reported figures.