Tax-cutter Regan may turn tax booster

Treasury Secretary Donald Regan now thinks the Reagan administration may be forced to seek higher taxes in order to reduce a federal budget deficit that could approach $200 billion in the current fiscal year, a Treasury spokesman said Monday.

''He (Regan) is considering the need for tax increases,'' a spokesman said in response to a published report that Mr. Regan already had urged President Reagan to move in that direction. Only a month ago, Mr. Regan was hoping to stimulate the economy by advancing by six months a tax cut scheduled for next July 1 - a move that would have added an estimated $14 billion to the current year's deficit.