Marvin OnumonuCareerminds UK found that just 19.2% of entry-level job listings on LinkedIn disclosed salary.
Sales and commercial roles were the most open about pay.
Sales executive roles listed salary in 53% of cases, executive assistant in 48%, recruitment consultant in 47%, and data scientist in 44%.
Hospitality, recruitment, and education sectors also performed well, with restaurants showing salary in 44.2% of listings, staffing and recruiting in 38.8%, and primary and secondary education in 29.9%.
Some jobs showed almost no salary information.
Paralegals, site engineers, and mechanical engineers appeared in listings with no salary shown.
Teaching assistants and delivery drivers saw pay in just 2.6% of adverts.
Software engineers, despite working in a field that became more transparent, only saw pay in 11.1% of postings.
Swansea topped the list with 21.4% of listings showing salary, Brighton at 19.5%, and Liverpool at 18.6%.
London ranked 22nd out of 27 cities with only 10.1% of adverts showing salary.
Aberdeen was lowest at 4.3%.
Healthcare jobs were the least transparent, with only 7% of listings showing pay.
Bupa showed salary in none of its 29 listings.
Healthcare assistants and delivery drivers, who often had less financial security, were among the least likely to see pay before applying.
Hybrid roles showed salary in 42% of listings, but remote roles, which became less common, only showed pay in 0.7% of adverts.
Amanda Augustine, resident careers expert at Careerminds UK, said: “At the start of a career, salary information isn’t just useful, it’s essential.
“Graduates have no prior earnings to anchor a negotiation, no industry benchmarks, and often no idea whether an offer is fair.
“When employers withhold pay upfront, they’re not protecting a competitive advantage, they’re putting the most vulnerable candidates at the greatest disadvantage.”
