Social Security Act
Section 19-A. Contributions of the Self-Employed Member. - The contributions to the SSS of the self-employed member shall be determined in accordance with the schedule provided in this Act: Provided, That the monthly earnings declared by the self-employed member at the time of his registration with the SSS shall be considered as his monthly compensation and he shall pay both the employer and the employee contributions: Provided, further, That the contributions of self-employed persons earning One thousand pesos (₱1,000.00) monthly or below may be reduced by the Commission.
The monthly earnings declared by the self-employed member at the time of his registration shall remain the basis of his monthly salary credit, unless he makes another declaration of his monthly earnings, in which case such latest declaration becomes the new basis of his monthly salary credit.