I feel I have mastered rent increases. I keep our rentals in great condition so this strategy make is easy for me. I usually print out the market rent provided by Zillow and a few other websites. provide it to tenant. Let them know taxes and insurance cost have gone up. Ask them what is a fair rent rate to go up to. Ex: Lets say market rent is $1,200 and they are paying 900. I may offer they can either pay 1,100 or 1,150. Their other option is to move out and pay $1,200 somewhere else.
Don't just think about cashflow. Think about capex and repairs. Ex: A roof in my area cost 9,000 and will last 25 years. 9,000 / 25 yrs is $360 a year. The $360 a year breaks down to $1 per day. As a land lord you need to be putting away $1 per day to pay for your future roof. We still need to calculate appliances, flooring, windows, HVAC, fixtures....My point is that we need to be putting away money to keep our properties in max market rent rate condition.