Cause Marketing Calculator

What is cause marketing?

Cause marketing is a commercial arrangement in which a business links a sale, or another customer action, to a contribution to a charity or cause, and promotes that link to customers. The business gets a reason to be chosen. The cause gets money and visibility. It is also called cause-related marketing.

The first nationwide campaign of this kind is usually dated to 1983, when American Express promised one cent towards restoring the Statue of Liberty each time a card was used, and one dollar for each new card issued, during the final quarter of the year (Drumwright, SAGE Encyclopedia of Corporate Reputation, 2016). Five years later Varadarajan and Menon gave the practice its standard academic definition: a firm offers to contribute a specified amount to a designated cause when customers buy (Journal of Marketing, 1988).

Two words in that definition carry the whole idea: specified and designated. A campaign that says a portion of proceeds goes to good causes names neither an amount nor a recipient. That gap is what the claim check above is built to close.

Cause marketing is not a corporate donation, where the gift does not depend on customers. It is not sponsorship either, where a business pays a fixed fee for association. In cause marketing the amount moves with what customers do, which is why it needs pricing before launch. The cause matters as much as the mechanic: our reading of the giving data is that people have usually chosen their causes before a brand arrives with one.

How the cause marketing calculator works

The calculator does not forecast a sales lift, because nobody can promise you one. It tells you the lift you need. Five numbers go in: price, gross margin percentage, the sales you expect without the campaign, campaign costs and the donation. Four come out.

• Donation per saleThe fixed amount, or price × percentage, or gross contribution per sale × percentage. Percentage results are rounded to the nearest cent for each sale.
• Total donationDonation per sale × sales, held between any guaranteed minimum and any cap.
• Cost if sales do not moveTotal donation at expected sales + campaign costs.
• Break-even extra salesWith no maximum or guarantee: (donation on expected sales + campaign costs) ÷ (gross contribution per sale − donation per sale). With a maximum or guarantee, the calculator solves each part of the capped or guaranteed donation separately.

A worked example

A £40 product at a 50% gross margin has £20 of gross contribution per sale before campaign costs, overhead and tax. You expect 5,000 sales, promise £1 a sale and spend £2,000 on the campaign. If sales do not move, you give £5,000 and are £7,000 down. To break even you need £7,000 ÷ (£20 − £1), which is 369 extra sales, a lift of 7.4%.

Whether 7.4% is realistic for your product is a judgement the calculator leaves with you. The only dependable way to find out is to run the offer against a group that does not see it, which is the method in our guide to measuring a rewards-based campaign.

What it assumes

• Price and margin stay the same for the length of the campaign.
• Figures exclude VAT and sales tax, and the donation is treated as a straight cost with no tax adjustment.
• The break-even formula above is the simple case, with no cap or minimum in play. When one applies, the calculator solves for the point where the capped or guaranteed donation is covered.
• A cap stops the donation growing. It does not stop the sales, so sales after the cap keep their full margin.
• It is a planning tool. It is not tax, accounting or legal advice.

Four ways to structure a cause marketing donation

The calculator handles all four. Any structure can be calibrated to a similar expected budget, but its actual cost and customer meaning depend on the rate, qualifying volume, maximum and guarantee.

The fourth row is where cause marketing meets rewards-based marketing: the contribution hangs on something other than a purchase. It only holds up if the action is one a system can confirm, which is the subject of our guide to verified real-world actions, and if cheap repeat claims are designed out, covered in how to prevent reward farming.

Common disclosure requirements to check

This is educational planning information, checked against the linked sources on 9 October 2026. It is not legal advice and it is not a complete map of every jurisdiction. Before running a campaign, check the current rules wherever customers will see it and have your organisation and charity partner approve the agreement and wording.

In England and Wales, a business that promotes goods or services on the basis that it will contribute to a charity is, broadly, a commercial participator under Part II of the Charities Act 1992. The official guidance says a written agreement with the charity must be in place before the arrangement begins, and a solicitation statement should name the charity and explain the amount it will receive or how that amount is calculated (Fundraising Regulator solicitation statement guide). Scotland has separate rules. Northern Ireland has no equivalent commercial-participator legislation, and the regulator recommends the standards used elsewhere in the UK as good practice (official guidance on commercial participators).

In the United States, commercial co-venture requirements vary by state, so the relevant state regulator or current specialist advice should be checked before launch. The BBB Wise Giving Alliance Standard 19, an accountability standard rather than a complete statement of law, calls for the amount or portion benefiting the charity, the campaign duration and any maximum or guaranteed minimum at the point of solicitation. It says “proceeds”, “profits” or “net proceeds” alone are not enough.

If the wording makes an environmental claim, the UK Competition and Markets Authority's Green Claims Code guidance says claims should be truthful and accurate, clear and unambiguous, omit no important information, make fair comparisons, consider the full life cycle, and be substantiated. Those are planning checks, not a substitute for reviewing the exact claim.

The calculator draft includes a named recipient, an exact per-unit amount, dates, and any maximum or guarantee. That does not make it compliant by itself. Treat it as a starting draft and check it before publishing.

Does cause marketing work? What the evidence shows, and what it does not

There is no dependable benchmark for the sales lift a cause campaign produces, so we have not put one in the calculator. Results vary with the product, the price, the cause and how visible the offer is. Any single percentage you see quoted is somebody else's campaign.

Three things are worth carrying into planning.

A purchase can replace a gift. In studies with around 300 students, Aradhna Krishna found that people who bought a cause-linked product then gave less to the cause directly (University of Michigan summary of research published in the Journal of Consumer Psychology, 2011). It is a student sample and one set of studies. It is still a reason to ask what the cause receives in total, not only what your campaign sends.

Local causes may be easier to carry. This is our reading, not a settled finding. In the MK Dons programme the food went to hubs in the club's own town, and we set out the argument in local versus global causes.

A donation can beat a discount, under conditions. In three experiments with a nationwide internet panel, Arora and Henderson found that at low amounts a donation tied to a purchase did more than a price cut of the same value, and helped a little-known brand more than a familiar one (Marketing Science, 2007). That is stated preference in experiments, not a sales record, and it says nothing about larger amounts. Treat a cause-linked offer as something to test against another offer, with a group held out from both.

Before you launch a cause marketing campaign

• The charity has agreed in writing to the arrangement and to the wording.
• The claim states an amount per sale in money, the dates, and any cap or minimum.
• You can afford the cost if sales do not move.
• A comparison group is defined, so a lift can be told apart from seasonality.
• You have agreed who reports the total raised, and when. Report money allocated and outcomes delivered as separate stages, each with its own evidence.

If you are choosing the cause as well as the mechanic, start with why people support the causes they support, or see how sponsored campaigns are structured on the Zenko for brands page.

Frequently asked questions

What is cause marketing?

Cause marketing is a commercial arrangement in which a business links a sale, or another customer action, to a contribution to a charity or cause, and promotes that link to customers. The business gets a reason to be chosen and the cause gets money and visibility. It is also called cause-related marketing.

What is an example of cause marketing?

The best-known early example is American Express in 1983, which promised one cent towards restoring the Statue of Liberty each time a card was used. A recent UK example is MK Dons, whose Buy a Home Shirt, Feed a Child programme with Zenko linked each home shirt sold to a meal's worth of food for projects feeding children in Milton Keynes.

What is the difference between cause marketing and CSR?

Corporate social responsibility is the wider set of commitments a company makes on its social and environmental conduct, whether or not customers ever see them. Cause marketing is one commercial tactic inside or alongside that: a promoted offer where the contribution depends on what customers do. A donation that does not depend on customers is philanthropy, not cause marketing.

How do you calculate a cause marketing donation?

Multiply the per-sale donation by qualifying sales, rounding a percentage-based donation to the nearest cent for each sale, then apply any maximum or guaranteed minimum. With no maximum or minimum, extra sales to break even equal the donation on expected sales plus campaign costs, divided by gross contribution per sale minus donation per sale. With a maximum or guarantee, solve each part of the donation separately, as this calculator does.

How much should a business donate per sale?

There is no reliable benchmark, so work from your own margin. Check two numbers before choosing: the total cost if sales do not move at all, and the sales lift the campaign needs to pay for itself. If the first is unaffordable or the second looks unrealistic for your product, lower the donation or add a cap.

Do I need a written agreement with the charity?

In England and Wales, yes, if you promote goods or services on the basis that a charity will benefit. The law treats you as a commercial participator, which means a written agreement with the charity and a statement to customers naming the charity and saying how much it will receive and how that is calculated. Rules differ in Scotland, Northern Ireland and other countries, so check before launch.

Does cause marketing increase sales?

It can, but nobody can promise it will for your product. Published results come from other companies' campaigns and do not transfer reliably. The dependable approach is to run the offer against a comparison group that does not see it and measure the difference.

Sources

• Varadarajan and Menon, Cause-Related Marketing: A Coalignment of Marketing Strategy and Corporate Philanthropy, Journal of Marketing, 1988
• Drumwright, Cause-Related Marketing, The SAGE Encyclopedia of Corporate Reputation, 2016
• Fundraising Regulator, Do you need to give a solicitation statement?
• Fundraising Regulator, Guidance for charitable institutions working with commercial participators
• Fundraising Regulator, Working with commercial participators and professional fundraisers
• BBB Wise Giving Alliance, Standards for Charity Accountability, Standard 19
• Arora and Henderson, Embedded Premium Promotion: Why It Works and How to Make It More Effective, Marketing Science, 2007
• Competition and Markets Authority, Green Claims Code guidance
• University of Michigan, Cause marketing lowers charitable donations, 2011 (university report of Krishna's research)
• Zenko, case study of the MK Dons programme (company-reported)

More in this area: Purpose and Impact insights. Or go back to the calculator.