Roughly 1 in 8 British workers have changed the way they speak to sound more professional at work, according to a poll of 3,384 adults in Great Britain commissioned by campaigning consultancy Common Ground and carried out by More in Common between 31 July and 3 August 2025. The headline figure sits at 13% nationally, but the distribution is far from even: 23% of people with an East London accent and 20% of those with Scottish or Estuary English accents report having softened their speech to fit in professionally. For candidates working out how to present themselves, and for HR functions with a genuine commitment to inclusion, the data puts a measurable, class-linked barrier into plain view.

What makes this polling politically significant is that the Equality Act 2010 does not list accent as a protected characteristic under its s.4 schedule. Accent can, in some circumstances, serve as a proxy for national origin, which is protected under s.9 of the Act, but the protection is indirect and contested. For the majority of workers who experience accent-based mockery or career penalties, the legal route is narrow. The policy gap is real, and the data below traces its contours.

What the polling actually shows

The headline 13% conceals a sharper picture once the data is broken down by region and accent type. According to the Common Ground polling, 1 in 10 respondents felt self-conscious or anxious about speaking during a job interview or an important meeting because of how they sounded. Eight percent said a colleague or manager had mocked, criticised or singled out the way they spoke, and 5% believed their accent had cost them a promotion, a pay rise or a senior position.

Anxiety about speaking in high-stakes professional moments tracks closely with specific accent groups. People with Newcastle and East London accents were most likely to report that kind of anxiety, at 19% each. Among Welsh speakers the figure was 18%, and among Birmingham accent speakers 14%. Geographically, 17% of respondents in Wales, 13% in Greater London, 12% in the West Midlands and 11% in Scotland flagged the same concern.

On promotion and progression, 15% of West Country speakers, 13% of Birmingham speakers and 11% of Yorkshire speakers believed they had been passed over because of how they sounded. When respondents were asked which accent faces the greatest workplace bias, they identified Liverpool first at 15%, followed by Birmingham at 11%.

One figure deserves particular attention. Nationally, 4% of respondents felt they needed to adopt Received Pronunciation to move into better-paid work. Among people with a Newcastle accent, that proportion was 13%. That three-fold gap is not a matter of individual sensitivity; it points to a structural filter operating at the point where accent meets opportunity.

Not a new finding, just a clearer one

Earlier research commissioned by insurer Zurich UK, based on 2,000 UK adults, found that 36% of people with regional dialects believed they were judged negatively because of how they sounded, and 16% said concerns about their accent had actively prevented them from speaking up at work. In that Zurich UK dataset, Received Pronunciation was rated the most appropriate workplace accent, with Liverpool and London Cockney rated among the least suitable.

Set the two datasets alongside one another and the pattern becomes harder to argue away. Workers with regional accents are not confusing social unease with structural disadvantage. A measurable share of them are actively modifying their voice as a career strategy. The Chartered Institute of Personnel and Development (CIPD), which publishes annual data on UK workforce diversity practices through its People Management surveys, has begun to flag socioeconomic background as an under-monitored dimension in organisational DEI frameworks. The accent question sits squarely inside that gap.

For employees and candidates: what to do with this

If you have ever adjusted your vowels before a video interview or consciously slowed your speech pattern on a call, the polling confirms you are not alone and that the behaviour is happening at scale across the country. Several practical framings can help you decide how to handle it without either suppressing your identity unnecessarily or walking into an environment that will hold you back.

Separate the content from the delivery. Most interview questions are assessing structured reasoning, professional judgement and relevant experience, not phonetics. Rehearsing your answers out loud in your own voice before an interview reduces the cognitive load of simultaneously monitoring how you sound. The content carries; let it.

Understand your rights when conduct crosses a line. The polling shows 8% of workers have been mocked, criticised or singled out at work for their accent. Under the Equality Act 2010, accent is not itself a listed protected characteristic, but where accent-based ridicule is tied to national origin or ethnicity it may constitute harassment under s.26 of the Act. ACAS (Advisory, Conciliation and Arbitration Service) publishes clear guidance on dignity at work and the internal grievance routes available to employees. If something happens, document it in writing, note any witnesses present, and check your employer's bullying and harassment policy before deciding whether to raise a formal grievance.

Research the employer before you research yourself. If a workplace consistently sends signals that you need to change how you sound to be taken seriously, that is information about the culture rather than a verdict on your capability. Verified employee reviews that address who gets heard in meetings, how feedback is given and whether leadership is regionally diverse all give you a more accurate read than careers-page language alone. Promotion data within the leadership team is another useful signal.

Factor the progression question into your negotiation. Five percent of workers nationally believe accent has cost them a pay rise or a senior role, and that proportion is higher in certain regions. If you are in one of those regions or accent groups, it is a legitimate input to how you frame your next salary negotiation or assess the realistic ceiling for internal progression where you currently work.

For HR and hiring leaders: the blind spot in your diversity strategy

The Common Ground findings are uncomfortable reading for any HR function that has built a diversity and inclusion strategy around gender, ethnicity and disability metrics. Accent bias sits below all of those categories and rarely generates its own dashboard entry, yet it is the first signal an interviewer processes, often before a candidate has finished their opening sentence.

Lara Newman, founder of Common Ground and the research's commissioner, framed the problem directly. She said it is hard enough trying to get jobs or promotions in professions that for decades have recruited from only certain classes or backgrounds, and that the polling underlines deep-seated problems within recruitment and career development. Newman added that genuine diversity means opening up routes to successful careers for people who have, until now, been ignored, excluded or discriminated against, rather than replacing one demographic profile with another. Her closing position is worth keeping in any recruitment review: she argued that challenging deep-rooted and outdated attitudes, including bias against accents, will lead to industry-leading inclusion and benefit society as a whole.

Common Ground, established in 2025 to increase diversity in the commercial property and real estate industries, is not a generalist HR body, but the data it has surfaced has implications well beyond property. Any UK sector where professional credibility is assessed partly through voice, including legal services, financial services, media and consulting, faces the same structural question.

The CIPD's People Profession surveys consistently show that socioeconomic background monitoring remains far less common in UK organisations than gender or ethnicity monitoring. ACAS guidance on bullying and harassment, while useful for individual cases, does not yet provide sector-level benchmarks for accent bias in hiring. The Resolution Foundation has documented persistently slower wage growth and lower occupational mobility for workers from lower socioeconomic backgrounds, a pattern that the Common Ground data suggests may be amplified by accent at the point of hiring and promotion.

Where accent bias leaks into your process

There are four common points worth auditing:

• Unstructured interviews. When interviewers rely on overall impression rather than scored competencies tied to the job description, accent and delivery style carry disproportionate weight. Structured interview scorecards, anchored to job-relevant criteria, reduce the room for that kind of drift.
• Culture-fit language. Feedback framed as the candidate not being polished enough, or that their communication style did not land, is often accent bias wearing more acceptable clothes. Require reviewers to reference specific, observable behaviours rather than general impressions.
• Promotion panels. If 15% of West Country speakers and 13% of Birmingham accent speakers believe they have been passed over for progression, talent-review language deserves scrutiny. Words like gravitas, executive presence and polish should trigger a behavioural evidence check before they appear in a performance record.
• Client-facing role gatekeeping. The assumption that certain accents do not work with clients is rarely tested against actual client feedback data. It typically reflects what the hiring manager grew up hearing in professional settings, rather than any evidence about client preference.

Practical steps for this quarter

Add socioeconomic background and, where your systems allow, regional origin to your voluntary diversity monitoring. The CIPD's socioeconomic diversity guidance provides a starting framework for UK organisations doing this for the first time. Run interviewer calibration sessions that address accent bias specifically, not just gender and ethnicity. Review job adverts, promotion criteria and internal feedback templates for coded phrasing that functions as a proxy for accent or class. Give employees a clear, named route to raise concerns about how they are treated when they speak, and apply the same seriousness to those reports as to any other dignity-at-work matter under your existing ACAS-aligned grievance procedure. None of this extends beyond the discipline HR functions already apply to other protected and sensitive characteristics; it extends that discipline to a bias the workforce data is clearly signalling.

Why this matters beyond the poll

Accent is one of the fastest social signals a listener processes, frequently before the content of what is being said has registered. When 13% of a national workforce is quietly editing that signal in order to be taken seriously, and that proportion doubles for some regional voices, the cost is not only individual. It is the ideas that never get pitched, the salary negotiations never attempted, the candidates who self-selected out before applying.

The polling does not create a new legal duty. Accent remains outside the protected characteristics listed in the Equality Act 2010, and ACAS has not issued specific sector guidance on accent bias in recruitment. What the data does close off is the argument that the problem is anecdotal or marginal. For candidates, the figures provide validation and a more grounded basis for the choices you make about where to invest your career. For HR leaders, the polling is a prompt to start counting a variable that your workforce is clearly telling you exists, and that the CIPD and Resolution Foundation are increasingly framing as a missing dimension of socioeconomic inclusion.