You don't need a Paypal account. After filling in the donation amount, click "Update Total" and then click "Continue" just above the credit card logos on the lower left.
DONATE BY MAIL:
Make your check payable to "Taiwanese United Fund", and mail to:
Taiwanese United Fund3001 Walnut Grove Ave. Suite 7, Rosemead, California 91770
TUF is a 501(c)3 tax-exempt non-profit organization (Tax ID #33-0317955). Donors will receive a letter of proof for donated items.