actually, property taxes in sf are a little over 1%, so you're looking at $10.4k/year on that $900k condo (note: on the cheap for sf). $3400 + $900 tax + $100 insurance = $4.4k, again, without any condo fees, maintenance, or utilities. So you'll net much closer to $5k than $4k. Which to my claim, means you're out $60k post tax (over $100k pre) without eating, health insurance, owning a car, or parking yet.