It's a common complaint among some wealthy Americans: My taxes are too high.

But they might feel a little better if they considered Denmark. Or the United Kingdom. Or Austria. Or many other economies where the top income tax rate -- factoring in both the national and local tax bite -- is higher than the highest combined rate in the United States and also hits people lower down the income scale, CNNMoney reported.

At 60.2 percent, Denmark last year had the highest top personal income tax rate among the 34 countries in the Organization for Economic Cooperation and Development (OECD), an organization of developed and emerging countries. The top rate applied to income over roughly $55,000. According to CNNMoney, the top rate in the United States applies to income of about $400,000.

In fact, only three OECD countries -- Korea, Canada and Spain -- imposed their top rates on an income level above that in the United States. Read more.