In the UK we are not taxed highly enough (no matter what the tabloids and opposition MP's say), which is why our Health service etc. is not what it once was.
maximum slab --> has no influence over all and it may be few percentage difference depending up on the health insurance which you take over here in Germany. If you are earning atleast 30k per annum, what i said above will be true.
In Germany, social security deductions and Health Insurance deductions also should be added to your tax. All these deductions will be of some % and when you sum them up, u will find that you gross salary is 40-45 % deducted every month.
Yes, The Currency what i was talking is Euros, German Tax saving is little bit complicated and you have to provide lot of documents and a Tax consultant can better estimate how much we can get back at the end of year.
By Insurance and other policies u cant save much in germany, only major tax returns we can expect is by showing that u r supporting u r parents, medical bills and something like this.