How many months of gross salary you keep in your emergency account?

The rule of thumb is 3 to 6 months of expenses, not gross earnings. For me, the idea is to have enough ready cash to cover expenses until I could likely find another job that pays enough to cover my expenses. In the kind of work I do, that would be more than three months, maybe even more than six. That said, I probably have only four or so months of expenses squirreled away, when I'd be more comfortable with eight.

I don't understand emergency accounts. What could possibly happen where you need emergency money? You totaled your car? You need a big operation? Your house burns down? What exactly is it that you need money for that you can't wait a week to get the money? You might keep $5000 or so laying around, but you could cash out your entire mutual fund in a week if you needed it, so why would you not put all your money except for about $5000 into a mutual fund? The mutual fund will always have value whether it is up or down and you have increased your chances of increasing your net worth if it is in a fund.

In today's economy it is better to have 6-12 months in an emergency fund, but that varies a bit by the type of job you have and your ability to be mobile and search for jobs in different states

I have 8 months

Zero. Just not a good idea. It doesn't mean that you should spend every penny you make, but putting the money into a ROTH account has more benefit that keeping it in a savings account. And going to a financial planner to make sure you are not wasting too much of your money is another good idea.

According to Suzy Orman, you should have 6 months

or more in your emergency bank fund.

multiply your monthly expenses times 8. This will give you a year worth of reserved money to overcome adverse moments.

I can't save anything and that's why it's gross.

depends on how secure you feel with your job, chance of becoming unemployed, upcoming expenses, etc - you should also be saving for other things also, like next car down pmt, house down pmt, retirement, kids college, vacations, etc

4 years but i'm always looking to buy cheap houses so it varies.