Move underscores U.S. companies' uncertainty about tax reform.

Change in timing of taxes on options could make them less attractive.

Advocacy groups cite reports mentions of Apple and Commerce Secretary Wilbur Ross.

Survey also shows some U.K. companies look to replace EU suppliers amid Brexit uncertainty.

President's televised announcement confuses bondholders.

Microsoft, Oracle, IBM said to shift sales incentives for sales people.

Opaque new tax is seen preventing offshore profit-shifting.

5 tips for assessing your business and identifying potential roadblocks before they morph into problems.