Most businesses will have noticed their overheads increasing rapidly in recent years, but the truth is that overheads have actually risen by nearly a quarter in just five years with transport, energy bills and insurance the biggest offenders. Not surprisingly, this is having quite an effect on many businesses who simply can't sustain this kind of growth in costs and, in fact, see it as the biggest threat to their business. It's not surprising, considering this news, that so many businesses feel this country has become simply too expensive when it comes to doing business.