You may think your tax rate is too high, but poor Travelzoo (NASDAQ:TZOO) probably has it worse. The online travel specialist boasted a 168% effective income tax rate in its second-quarter earnings release.

It looks like folks are catching on to the staycation trend this summer; Travelzoo really had nothing to talk about, other than that ridiculous tax rate. Overall revenue was up 8%, as the company continues efforts to expand internationally. North American sales grew by a meager 3%, and operating profits dropped by 300 basis points year over year. European revenue increased by 71%, but operating losses increased by almost 67% as the company seeks to expand in France. Travelzoo is still looking to take off in Asia, with quarterly revenue of $90,000 and losses of $3.2 million.

As you can imagine, the overall financial picture for Travelzoo is absolutely horrendous. Its cost of goods sold skyrocketed by 183%, general and administration expenses increased by 104%, and sales and marketing costs jumped by 16.5%, with an overall increase in expenses of 37.6% on the 8% revenue increase. These numbers triggered a huge swing in profits per share, moving from a $0.17 profit last year to a $0.08 loss this year. Travelzoo couldn't write off its losses in Asia and Europe, driving taxes to that sky-high 168% effective rate.

Direct online travel providers such as Priceline.com (NASDAQ:PCLN), Orbitz (NYSE:OWW), and Expedia (NASDAQ:EXPE) have experienced ups and downs lately. Even Ctrip.com (NASDAQ:CTRP), China's top online travel agency, has seen its stock drop by more than 40% in the past two months, which brings into question whether international travel will spur Travelzoo's long-term revenue growth. Travelzoo launched its China service in October 2007, and it's still is only generating $90,000 in quarterly revenue for all of Asia. Considering that Olympic preparations would be a big part of this quarter, that's a pretty sad statistic.

Travelzoo's stock price is down more than 70% from its 52-week high, and it isn't clear that the company has any positive growth opportunities in its future. Really, the only good news here is that the company has no long-term debt to weigh it down. Oh, and if you're not an investor, you'll at least be happy to note that Travelzoo is carrying more than its fair share of taxes.

Further globetrotting Foolishness:

Ctrip is a Hidden Gems selection. Priceline is a Stock Advisor recommendation. Looking for more advice in a topsy-turvy market? Give The Motley Fool's newsletter services a try via the 30-day free trial.

Fool contributor Colleen Paulson does not hold positions in any of the stocks mentioned above. The Fool's disclosure policy is always on staycation.