To apply for RSPA membership or register for an exam, you must pay both the application fee and the appropriate prorated dues amount.

Membership Application Fee (Nonrefundable fee includes application processing, review course and study materials that are emailed to you. You will also receive a new member package.)
United States, its territories and Canada - Professional $425
International - Professional
$295
United States, its territories and Canada - Tennis Instructor $225
International - Tennis Instructor $110
 

Plus, Applicable Dues: Must be paid by all current professional members by the end of December of the previous year. If a member joins once the new year has already begun, the prorated amount will be charged as follows:
1. Domestic Professional $325
2. Domestic Tennis Instructor $225
3. International Professional/Tennis Instructor $195

Prorated Dues
(Nonrefundable and prorated to the month in which you apply)

Applying for membership Domestic Professionals Tennis Instructors International
January 
$297.92 $206.25 $178.75
February  $270.83 $187.50 $162.50
March  $243.75 $168.75 $146.25
April  $216.67 $150.00 $130.00
May  $189.58 $131.25 $113.75
June  $162.50 $112.50 $97.50
July  $135.42 $93.75 $81.25
August  $108.33 $75.00 $65.00
September  $81.25 $56.25 $48.75