# § 843. Annual accounting period
For purposes of this subtitle, the annual accounting period for each insurance company subject to a tax imposed by this subchapter shall be the calendar year. Under regulations prescribed by the Secretary, an insurance company which joins in the filing of a consolidated return (or is required to so file) may adopt the taxable year of the common parent corporation even though such year is not a calendar year.
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**Source Credit**: (Added Mar. 13, 1956, ch. 83, § 4(a), 70 Stat. 48; amended Pub. L. 94–455, title XV, § 1507(b)(2), Oct. 4, 1976, 90 Stat. 1740.)
## Editorial Notes
### Amendments
1976— inserted provision permitting an insurance company which joins in the filing of a consolidated return to adopt the taxable year of the common parent corporation even though such year is not a calendar year.
## Statutory Notes and Related Subsidiaries
### Effective Date of 1976 Amendment
Amendment by applicable to taxable years beginning after , see , set out as a note under .
### Effective Date
Section applicable only to taxable years beginning after , see Effective Date of 1956 Amendment note set out under .