CA Support us

Support us

The Institute takes no money from parties or governments. Our research, events and voice in the media are paid for by people and companies who believe in a freer Catalonia. There are two ways to help.

Ostrom Circle

A small recurring contribution

You choose the amount and we collect it every six months by direct debit. It is the support that lets us plan our research ahead.

Choose your contribution

It costs you 80 € a year, after tax relief.

What you get as a Circle member

  • Free or reduced-price registration for the Institute's events.
  • Priority invitations: we tell you before registration opens to everyone.
  • An extended newsletter, with reading and links beyond what the Institute publishes.
  • An invitation to the annual meeting where we set the calendar and topics for the months ahead.
  • Access to the Institute's WhatsApp broadcast group.

One-off donation

A single gift by card

For a specific push: a report, an event, a campaign. Secure payment with Stripe.

Amount

It will cost you 200 €, after tax relief.

Tax benefits

Fundació Institut Ostrom Catalunya is covered by the Spanish charitable giving regime (Law 49/2002). For Circle contributions and donations:

Individuals (Spanish income tax)

  • 80% of the first 250 € you give each year.
  • 40% of the rest, or 45% if you gave the Institute the same amount or more in each of the two previous years.
  • Gifts count for relief up to 10% of your taxable base.

Companies (Spanish corporate tax)

  • 40% of the gift, or 50% if they gave the same amount or more in each of the two previous years.

How it works

Give us your tax ID and postcode. In January we report contributions to the tax office (form 182) and the relief appears in your draft tax return. We can send you a donation certificate if you need one.

Work out what it costs you

Who is giving
€
You get back300 €
It really costs you200 €

Counts up to 10% of your taxable base for income tax.

Guidance based on the rules in force in 2026. Please check with your tax adviser.

PDF file

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