If you would like to support Leiden University over a longer period and in a way that has some tax benefits, you can make a periodic donation.
You can draw up a donation agreement with the LUF in which you stipulate that you will make an annual donation. The advantage of periodic donations is that they are fully tax-deductible for a period of at least five years. There is no threshold and no maximum amount. More information about periodic donations can be found on the website of the Tax Authorities.