In a survey of members of trade association UKinbound, 52% of respondents said they feared their business would not have made the necessary adjustments by the time the transition period ends on 31 December 2020.
More than two-fifths (44%) said they did not know how long preparations would take.
UKinbound’s Business Barometer, conducted among its tour operator, attraction and accommodation provider members, also revealed 60% of members felt negative perceptions about the UK will be the number one challenge for their business in 2020.
More than half (52%) cited the ability to recruit and retain staff as a major challenge.