The B&B Association has teamed with VisitBritain and regional tourist boards across the UK to promote the first National B&B Day.
Taking place during English Tourism Week (March 17-25), the B&B Day will be on March 24.
It aims to highlight the £2 billion contribution to the economy which is made each year by more than 20,000 small and independent accommodation businesses – including B&Bs, guest houses and small independent hotels.
Business owners are being urged to take part by offering special deals or extras on March 24.
A statement from VisitBritain said: “The British bed-and-breakfast is one of the fundamentals of what makes a visit to Britain great for overseas visitors.
“We support National B&B Day as a celebration of the valuable contribution they make to the tourism industry in this country.”
Tourist boards backing the initiative include Welcome to Yorkshire; Cumbria Tourism; Visit Wiltshire; Visit Brighton; Discover Yorkshire Coast; Visit Lincoln; Tourism South East; and Bournemouth Tourism.
Other sponsors include Booking.com, eviivo, TripAdvisor, The AA, National Express, toprooms.com, digital agency New Mind | tellUs, and Little Touches, which promotes B&Bs in Blackpool.
eviivo, an online booking specialist for independent hotels and B&Bs, said that forward bookings for summer 2018 at inland B&Bs are 10.3% up year-on-year.
Seaside destinations are also performing well, with forward bookings up 5%.
Ruth Whitehead, director at eviivo, said: “The surge in popularity of Britain’s stylish and comfortable B&Bs continues for good reason and we’re seeing another year of strong forward booking performance. B&Bs are also getting a boost from the value of the pound, which is having a positive impact on the choices of British holidaymakers and international guests.”