<prompt> Human: I recently purchased my first home and am renting one of the bedrooms to my sister. She only plans to live here for 6 months to a year. I purchased this home for an affordable price and plan to save for a 2nd additional house in 4-6 years ifwhen I have a spouse. My question is about taxesincome. Im assuming I need to claim the rent money from my sister as income. Is there a spot on my tax return to claim this since she just pays me in cash? Is there any benefit to claiming it as income or can I keep it under the table? I also have a home office since I work from home. Am I able to deduct any of the mortgage for office space?Please let me know if there is a more appropriate subreddit for this post.  <response>: Maybe youre generous guy who let your sister live with you for free.Maybe shes a generous gal wholl randomly give you a couple of hundred bucks a month. 