3/1 SFH bought in 2015...
Purchase Price: $66k (privately financed through a relative)
Renovations: $23k (I paid this myself. It was at least $10k more than what I had budgeted. Chalk that up to having no idea what you are doing)
Initial Rent: $1125
Insurance: $1675 (Lol. Don't ever ask your parents how to buy insurance for an investment property because they'll panic and want you to get a bunch of stuff you don't need. I've gotten this number down 4 years straight, and it's now about $700)
Taxes: $850 (it's up to $1250 now).
Maintenance: ~$700 (like I said, I spent $23k that first year that I bought it, but I have averaged $700/year in the 4 years since. It will probably need a new HVAC soon though)
Management: $0 (I placed the tenant myself back when I was local, but I have moved 200 miles away since. Lucky the tenant has stayed because I plan to outsource the management if he ever leaves. 10% + fees is pretty standard for this area).
Vacancy: $0 (Technically it took me 3 months to get a tenant in from the day I bought it, but he's now in year 5 of his tenancy. Pretty lucky for the reason I mentioned above).
From a budget perspective, I still budget 12% for PM and 8% for vacancy. So from a pro forma perspective:
Gross Rents: $13,500
Gross Rents (net of Vacancy Budget): $12,420
Actual Expenses: -$3,225
Budgeted PM (12%): -$1,490
Total Budgeted Expenses: -$4,715
NOI = $7,705
Financing: -$2640
CoC: 5k/23k = 22%
Note: I've taken all the cash flow (and some other funds) to pay back the principal on the loan from my relative. So technically my CoC% has dramatically gone down since. However, I only owe them $10k from the original $66k, and the house is worth $135k from the original $89k all in price.