Work /
Teaching English in Poland (Poznan) with my TEFL Cert degree [14]
Never take a job that pays less than 50 PLN per 60 minutes AFTER TAXES.
Easier said than done in the current economic climate. Some good schools in Poznan at least might only pay 45zl net, but they will look after you. The best advice is to take what you can get in the first year and then adjust to suit. I started off on 35zl an hour net - absolutely pathetic, but it was a great foot in the door. 2 years later, I was teaching almost exclusively corpo-drones and doing well out of it.
If they can't guarantee you at least 20 hours a week, keep on looking.
That's not going to happen right now. The only schools that will make such guarantees will pay you a significantly lower base salary. And I can assure you that any school willing to offer 4000zl base a month will certainly not be interested in a random Irish bloke with a "TEFL" qualification
Forget about giving private lessons. Until you're experienced, the best, high-paying customers won't even look at you.
Actually, this isn't true. I haven't actively advertised for private classes in over two years, yet I'm still getting people calling me after seeing old online advertisements. Friends of mine report not much has changed, and even a friend of mine who openly admits to doing nothing other than conversation classes is still getting 40-50PLN/hour easily. The bloke in question turned up a few months ago with no experience and no knowledge of teaching English (and works a corpo job, the private classes are for beer) - and he's still getting calls.
It's worth pointing out that *if* you don't meet their expectations, then they will simply not show up for the next appointment. Private lessons are fine and well, but Poles have no sense of duty when it comes to these things. They certainly shouldn't be relied on for a steady income.
As for what Dominic says about the in-laws - absolutely right. In fact, much of what he says is absolutely right.
"relocate", can you tell us more about yourself? I might be looking for a part time teacher next year...