Lending your talent rather than writing a check: skills-based volunteering (in French, "mécénat de compétences") appeals to companies (team engagement, CSR brought to life) as much as to nonprofits (access to expertise they could never otherwise afford). From a tax standpoint, it counts as full corporate philanthropy — a 60% tax credit on the cost basis. But it is also the most closely scrutinized form of corporate giving, because it is the easiest to overvalue: days of work are quick to declare and hard to prove. Here's the complete guide, from structuring the arrangement to proving it.
Skills-based volunteering: the complete guide (and the detail that trips up audits: proof of time spent)
Reading time: ~5 min
Table of Contents
- Two legal forms: staff secondment or free services
- Valuation: cost basis and the 3-PASS cap
- The employment framework: employee consent
- Setting up the arrangement in practice
- The crux of any audit: proving the time actually spent
- Mini FAQ
1. Two legal forms: staff secondment or free services
Skills-based volunteering takes two forms: staff secondment — the employee remains on the company's payroll and under its responsibility, but works for the beneficiary organization, either occasionally or on a shared-time basis; this is the most common form — and free service provision: the company carries out a service for the organization that falls within its own line of business (a consultancy builds a website, a carrier transports freight) using its own resources.
In both cases, the beneficiary must be an organization eligible for corporate philanthropy, and the arrangement must be formalized through an agreement describing the assignment, its duration, and its terms.
2. Valuation: cost basis and the 3-PASS cap
The donation is valued at its cost basis: the wages and payroll taxes of the seconded employees, prorated to the time devoted to the assignment — never at the market price of the service. Since 2020, each employee's compensation is taken into account only up to three times the annual French Social Security ceiling (PASS): beyond that, the excess portion is excluded from the tax-credit base. The total then counts toward the general corporate philanthropy caps (€20,000 or 0.5% of revenue, with a 60% tax credit).
Example: an engineer with an employer cost of €400/day, seconded for 20 days, equals an €8,000 valued donation → a €4,800 tax credit. The same calculation for a highly compensated executive would be capped by the 3-PASS ceiling.
3. The employment framework: employee consent, working conditions
Secondment requires the employee's explicit consent (an amendment to the employment contract or a written agreement): a company cannot simply "hand over" an employee. The employee keeps their contract, pay, and rights; the company remains their employer. The agreement with the organization spells out supervision, location, working hours, and insurance matters. Best practice: define an assignment with a clear deliverable, rather than a floating number of days — this is better both for employee engagement and for tax documentation.
4. Setting up the arrangement in practice
1. Scope the need together with the organization: an assignment useful to ITS project (not to the donor company's brand — otherwise it may be reclassified as sponsorship). 2. Verify the beneficiary's eligibility and sign the agreement. 3. Obtain the employee's consent and formalize the contract amendment if needed. 4. Set up time tracking. 5. At the end: prepare the valuation, obtain the tax receipt from the organization based on it, and archive the complete file.
5. The crux of any audit: proving the time actually spent
This is where most files fall apart. Tax authorities almost never challenge the principle of skills-based volunteering; they challenge the tax base: how many days, in reality, for which assignment? A blanket attestation signed at year-end carries little weight if nothing backs it up.
A solid file includes: the agreement with the assignment description, dated timesheets or activity logs, deliverables or other evidence of the work, and a tax receipt consistent with that valuation.
This is where a well-equipped beneficiary makes a difference for both parties. When a nonprofit manages its projects on Abvius, skills-based volunteering days are logged as a valued contribution to the relevant project, dated, tied to the assignment, with deliverables kept in the project's audit file. The company gets defensible proof of time produced by a third party; the nonprofit values this contribution in its own reporting (including to its other funders, who appreciate in-kind co-financing); and both parties can communicate around something concrete: the assignment, its days, its outcome.
6. Mini FAQ
Is skills-based volunteering open to executives and self-employed professionals?
Secondment applies to employees. A non-salaried executive or a self-employed professional can provide a free service through their own business — valued at that business's cost basis — or volunteer personal time, which falls under a different regime.
Can skills-based volunteering happen during working hours without the employee's consent?
Not for a named secondment. However, the employer can offer a voluntary program — which is in fact what makes it an HR engagement tool.
Does the nonprofit have to "pay" anything?
Nothing. Any rebilling, even partial, destroys the donation's qualification. Mission-related expenses (travel) can be covered by the company and included in the cost basis.
In summary
Skills-based volunteering is a triple win — tax savings, team engagement, impact — on one condition: document the time and the assignment with the same rigor as a financial flow. A precise agreement, employee consent, dated logs, archived deliverables; and on the nonprofit side, a tool that records the contribution against the project. To go further: the corporate philanthropy tax reduction, the corporate philanthropy agreement, and corporate philanthropy, sponsorship, and patronage. To discuss this, contact our team via abvius.org.