The Office for Students has suggested that universities in England might in future charge different levels of tuition fees depending on the quality of their teaching, describing "differential fee levels" as a possible incentive to raise standards.

The regulator set out the idea at a Universities UK conference in Exeter, where vice-chancellors gathered to hear about potential changes to higher education funding. It stressed that any formal change to tuition fees would be decided by the government.

Under the current system all universities in England and Wales charge the same annual tuition fee for undergraduate degrees, which rose to £9,535 this year. The Office for Students, which regulates higher education providers, ranks institutions into four categories — gold, silver, bronze and "requires improvement" — and said differential fees could be used to reward better-performing providers.

"Differential fee levels could offer an incentive to higher quality teaching," the regulator said in commentary accompanying its proposal. It added that the issue of whether to change fees lay with ministers.

Skills Minister Jacqui Smith said funding plans would be set out this autumn, signalling that any decision on fee structures would be part of forthcoming government policy. The Department for Education would be responsible for announcing any change to the level or structure of tuition fees in England.

Delegates at the conference pressed universities on how they would respond if fee levels were linked to teaching quality, with some vice-chancellors seeking clarity on whether such a system would affect recruitment, investment and student support. The regulator did not publish a fixed timetable for implementing differential fees and described the proposal as one tool among others to drive improvements.

The proposal comes as higher education faces competing pressures. Student expectations about teaching and graduate outcomes, government priorities on skills and value for money, and scrutiny of university performance all shape debates about funding. The Office for Students was created to oversee quality and access, and its assessments influence public accountability and institutional strategy.

Critics of fee differentiation have warned that charging more at highly rated institutions could deepen inequalities by making the most sought-after courses more expensive for students, while rewarding providers that already attract more affluent applicants. Supporters argue that tying fees to measurable quality could encourage underperforming institutions to raise standards and allow students to make clearer choices about value when selecting courses.

The regulator's grading system — gold, silver, bronze and "requires improvement" — is based on a range of metrics, including teaching quality, student outcomes and regulatory compliance. The Office for Students said any move to differential fees would need careful design to avoid unintended consequences for access, fairness and subject provision.

Ministers and the regulator have previously emphasised the need to protect widening access and maintain student financial support while improving accountability. The government has not yet announced detailed proposals or a timetable beyond the pledge from the Skills Minister that funding plans will be published in the autumn.

The Office for Students' suggestion marks an opening for debate between regulators, universities and policymakers about how best to link funding to performance without disadvantaging students. Any formal policy to vary fees by teaching standard would represent a significant shift from the current flat-fee approach and would require parliamentary and administrative action before coming into force.