They have already expressed their wish for guests to donate to charity instead of giving them wedding presents.
And now Prince William and Kate Middleton have set up a charitable gift fund to make the donation process easier.
The royal couple have focused on five causes they wish to promote and have chosen a range of charities within each cause.
From animal conservation to support for military personnel as well as helping children and promoting sport, each cause is close to the royal pair's hearts.
Many of the charities are not well-known however and have no existing Royal Patronage.
Donations can be made through the website www.royalweddingcharityfund.org - which includes a full list of the charities selected by the future husband and wife.
Photo: © Rex