There are six grounds for filing an annulment:
- marriage of certain kindred
 - marriage attempted to be celebrated or performed by someone unauthorized to do so
 - marriage performed in Connecticut without a valid marriage license
 - marriage of persons under conservatorship or guardianship
 - marriage of minors
 - conviction of an offense against chastity
 
The annulment process is much like that for divorce or legal separation except that there is no 90-day waiting period. Parenting and financial issues can be legally resolved. Children born are deemed legitimate even if their parents’ marriage is annulled. A legal annulment is different from a spiritual annulment granted by a church. Legal annulments are not very common.