Asian stocks dipped on Friday on concerns over U.S. tax reforms after Senate Republicans unveiled a plan that delaying timing of a corporate tax cut.
MSCI's broadest index of Asia-Pacific shares slipped 0.15 percent.
Japan's Nikkei .N225 slumped 0.8 percent, sliding from Thursday's 21-year peak.
Australian shares dropped 0.3 percent, and South Korea’s Kospi index lost 0.3 percent.
The Hang Seng Index in Hong Kong and the Shanghai Composite Index were virtually flat.