Chapter dues of $60 are to be paid on a yearly basis. Payment is generally due by October 1 for each new school year. You can use a credit card here as a guest. You do not have to register with PayPal. Also you can use a generic invoice which can be downloaded here. You fill it out and present it to your administration.
Please remember to add your school name to the order to be sure it can be credited to the correct school. Remember, the school district may have a different name than your school.