HAVANA, March 17 (Reuters) - Cuba plans to remove a tax on dollars after Washington relaxed currency restrictions against the Communist-run island, but only when the government is sure the U.S. measures really make transactions easier, Cuba’s foreign minister said on Thursday.

Foreign Minister Bruno Rodriguez announced the measures three days before U.S. President Barack Obama was due to visit Cuba.

Earlier this week, the White House chipped away at a 54-year-old embargo by relaxing trade and tourism restrictions. It said it would allow U.S. banks to process dollar transactions for Cuba as long as neither buyer nor seller are U.S. entities. (Reporting by Marc Frank; Editing by Leslie Adler)