Slovakia 19% Tax flat rate when I was there 3 years ago - I don't believe it's changed. Nice scenery - proper Summers due to the microclimate in the lee of the Maly Carpathia. Bratislava linked to the UK well by the low-cost airlines. Bratislava also 40mins from Vienna airport. Nice countryside for lakeside-living 30mins up the motorway to the NE of Bratislava near the wine and spa region.
Not much influx of scum imported by the LoCos to vomit over the heritage either - the Slovaks seemed to apply a zero-tolerance mentality.
Cost of Living good - 60p a pint for good beer. (The same beer that costs £3.00 in Tesco in the UK).
sB