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I'd say it's worth doing. The main thing is that having money set aside specifically for emergencies keeps you from raiding your regular spending account when something unexpected pops up, which tends to derail budgets pretty quickly.
Most people aim for three to six months of expenses, though even a couple thousand dollars makes a real difference when your car breaks down or you need a medical procedure. I treat mine like a chess position where you're protecting your king - you plan ahead so you're not forced into bad moves when crisis hits.
Absolutely, I'd say it's one of the smartest financial moves you can make. Having that emergency fund separate keeps you from dipping into it for regular expenses, and it's saved me more times than I can count - unexpected car repairs, medical bills, that sort of thing.
The real difference comes down to psychology - out of sight, out of mind actually works for most people, so keep it at a different bank if you can.
one thing everyone's missing though is that if your emergency fund is earning basically nothing in a regular savings account, you're slowly losing ground to inflation, so look into a high-yield savings account where it can at least grow a little while staying accessible.
Don't just throw money at a savings account and forget about it - that defeats the purpose if you never actually build it up! What really matters is treating that emergency fund like a bill you have to pay, transferring something into it every paycheck, even if it's just twenty bucks. Once you've got three to six months of expenses sitting there separate from your checking account, you'll sleep so much better knowing you won't have to panic or go into debt the moment something breaks down.
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