Yes, you can claim him if he lived with you for the entire year and has no income more than $4700. Here are the requirements to claim your boyfriend as a Qualifying Relative.
Qualifying relative:
- They don't have to be related to you (despite the name).
- They aren't claimed as a dependent by someone else.
- They're a US citizen, resident alien, national, or a Canadian or Mexican resident.
- They aren’t filing a joint return with their spouse.
- They lived with you the entire year (exceptions apply).
- They made less than $4,700 in 2023.
- You provided more than half of their financial support.