How to calculate cost per beneficiary, and mistakes to avoid

Cost per beneficiary is one of the most requested figures in proposals and reports — and one of the easiest to get wrong. Done well, it is a simple, comparable measure of efficiency. Done badly, it can make a programme look far cheaper, or far more expensive, than it is.

The formula

Cost per beneficiary = full programme cost ÷ number of unique beneficiaries reached

Both parts need care.

Step 1. Write down who counts as a beneficiary

Before counting anyone, agree a definition:

• Direct or indirect? A direct beneficiary received a service; indirect beneficiaries (for example household members) should be reported separately, if at all.
• People or contacts? Count each person once. Visits, sessions and services are outputs, not beneficiaries.
• Over what period? Use the same period as the costs.

Step 2. Capture the full cost

Include:

• direct costs of delivering the activities — staff, commodities, transport, training;
• shared costs — management, office, monitoring and evaluation — allocated to the programme using a stated key;
• in-kind contributions such as donated supplies, valued and shown separately if your funder asks for them.

Step 3. Divide, and report the context

Divide the full cost by unique beneficiaries, and report the currency, period and whether costs are actual or budgeted.

A worked example (illustrative numbers)

A programme spends 120,000 on direct costs and 30,000 on shared costs in a year. It records 9,500 service contacts, delivered to 4,000 different people.

• Full cost = 120,000 + 30,000 = 150,000
• Cost per beneficiary = 150,000 ÷ 4,000 = 37.50
• Cost per contact = 150,000 ÷ 9,500 = 15.79

Two common mistakes change the answer considerably. Dividing by contacts instead of people gives 15.79 — less than half the true cost per beneficiary. Leaving out shared costs gives 120,000 ÷ 4,000 = 30.00. You can reproduce these figures with our free cost-per-beneficiary calculator.

Common mistakes funders notice

• Counting contacts as beneficiaries, which understates the cost per person.
• Leaving out shared costs, which understates the true cost of delivery.
• Changing the definition between years, so trends cannot be interpreted.
• Comparing with programmes that define beneficiaries differently, or deliver a different package.
• Presenting the figure alone, without results or reach. A low cost per beneficiary can reflect a lighter intervention or easier-to-reach groups.

Beyond cost per beneficiary

Cost per beneficiary measures efficiency. Funders who assess value for money also ask about economy, effectiveness and equity. Our guide to cost per beneficiary and value for money and the free VfM workbook show how to bring them together. If you would rather have the analysis done for you, see our value-for-money and cost-per-beneficiary analysis.