SIYE Challenges new  All stories submitted for SIYE challenges
Post-Hogwarts  All stories that take place after Harry would have completed his 7th year at Hogwarts, or graduated, but has nothing to do with book 7.
Post-OotP  All canon stories that take place after OotP was released.
Alternate Universe  All stories that do not hold to canon.
Buried Gems  Old classics that have been highlighted in SIYE's new 'Buried Gems' feature.
Post-DH/AB  All Canon stories that take place after DH was released and continues after the last chapter where the final battle ends.
Post-HBP  All canon stories that take place after HBP was released.
Holidays  Stories centered around the observance of a cultural or religious holiday such as Christmas, Halloween, Valentines Day, etc. This does not include vacations, breaks, trips, etc .
Cursed Child and beyond  Stories relating to Harry Potter and the Cursed Child, its background, and its consequences. Should refer to the play's plot and/or key characters.
Post-DH/PM  All Canon stories that take place after DH was released and picks up at the Epilogue or after, Harry & Ginny married with children.
Pre-OotP  All Canon stories that take place before OotP was released.