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Thank you for helping the KSA with its efforts to raise awareness of KS/XXY while supporting those affected by the condition.

The price for membership is £22.50.

Membership expires after 1 Year.

Make a Gift  

The KSA is run entirely by volunteers and depends heavily on donations to carry out its important work. 100% of all donations go towards raising awareness and supporting those affected by KS/XXY. If you would like to make a donation, however small – or large! - please enter amount here. Thank you very much.

Would you like to set up automatic renewals? This allows you to pay your subscription automatically when it is due. We will send you a reminder email two weeks before the payment is taken.

Would you like to Gift Aid your membership fee?

Under the Gift Aid scheme, For every £1 you give us, the KSA can claim an extra 25p back from the government at no extra cost to you. If you wish to Gift Aid your payment please click below and read the declaration:

I want the Klinefelter's Syndrome Association (KSA) to claim Gift Aid on my membership subscriptions and any donations I have made in the past 4 years, and those I make in the future, until I tell them otherwise. I am a UK taxpayer and understand that if I pay less Income Tax and/or Capital Gains Tax than the amount of Gift Aid claimed on all my donations in that year, it is my responsibility to pay the difference.

Please notify the KSA if you:

  • Want to change this declaration
  • Change your name or home address
  • No longer pay sufficient tax on your income and/or capital gains

Account Information Already have an account? Log in here

Note: Any nickname or your email address
Note: Your password must be at least 8 characters long and contain upper and lowercase letters, a number and a special character like /?.,*&~_+-={}[]\

Address and Contact Details

Please enter details of the principle account holder, that is, the paying member:

Additional Information


Note: if unborn, please provide approximate date.

Additional Accounts (Optional)

As an additional membership benefit, you can specify here up to two free additional accounts for other family members e.g. a partner, grandparent or young person who is KS/XXY. They will have the same access to our website, receive the same newsletters and event notices as the principal account member.

Our Privacy Policy

We take the protection of your private information very seriously. Please refer to our privacy policy for more information on what information we store, why and for how long.

By continuing checkout you are agreeing to your information being processed as described in our privacy policy. If you do not agree, please do not continue to checkout.