Section 115.1. Purpose of declaration of estimated tax

Section 115.2. Persons required to file a declaration

Section 115.3. Computing the estimated tax for residents and nonresidents

Section 115.4. Tax year of less than 12 months

Section 115.5. Joint declaration of husband and wife

Section 115.6. Minors, incompetents or other persons under disability

Section 115.7. Amended declarations

Section 115.8. Filing and payment of estimated tax for 1971

Section 115.9. Filing and payments of estimated tax for years beginning 1972

Section 115.10. Use of prescribed forms

Section 115.11. Final return