I have worked for myself, and for Fortune 500 companies in the US. All the type of work I did was paper based - there was no tax evasion, not that I would do it anyway. Thus weekly, I saw my pay get slashed by various government entities... Federal, State, City wage, Social Security, Medicare....
Living in Greece, what I am seeing and what I have heard blows me away.
Doctors and Lawyers with yachts and 500 Mercedes Benzs declaring salaries of 30-40K a year. All sorts of stores exist that ask you after purchasing a big ticket item: you want a receipt for that? They prefer not to give you a receipt, so they don't declare the income.
There is also a farm subsidy here. Farmers would send their sheep over to other farmers so they can be double counted for a larger subsidy.
It was chaos. But it's over now. Now the pendulum is swinging the other way. And hard. People are getting audited, most businesspeople are getting hit with an arbitrary tax figure - triple to quadruple what they have been assessed in the past. Undercover gov't officials are looking for shopkeepers that do not issue receipts...
Problem is, Greece is going through severe debt deflation. Very few are making the money they used to, and are getting creamed with taxes.
This is accelerating the depression, IMO. Many shops are closing, banks are lending less, and the unemployment rate is growing.
Now how the hell is Greece supposed to economically "grow out" of the existing debtload? I believe the gdp is taking a massive hit, and although tax revenues are increasing, it will be a mere bump in the long term. In the long term, there will be a lot less to collect, yet the debt continues to grow...
Morality and Ethics aside, this tax amnesty may make sense. If full back taxes are aggressively collected, in an environment where Greece does not control its currency and can't devalue, and in an environment of debt destruction, then Greece is committing economic suicide.
Problem is, it may have already.
You can only draw so much blood before the patient passes out.
It's no longer a question of fairness or morality. Don't get me wrong, too many people were gaming the system and I don't condone that.