Clifford Chance has become the first major law firm to report sexuality and disability pay gaps for its U.K. arm, in addition to gender and ethnicity pay gap data.

The firm has reported a mean 35.6 percent pay gap for sexuality and a mean disability pay gap of 61.9 percent across all levels of the firm, including partners.

In the U.K., 2.7 percent of the partnership identifies as LGBT. While no partners reported having a disability, 1.6 percent of all firm employees did so.

CC's mean ethnicity pay gap is 52 percent, with 8.1 percent of its partners identifying as BAME. About 20 per cent of the firm's total employees identify as such.

The firm's mean partnership gender pay gap is 25.9 percent – down from 27.3 percent last year – while the median pay gap dropped to 30.5 percent. A little over a fifth of the firm's U.K. partnership is female, with the firm stating in the report that it is working towards its 30 percent target.

The overall mean pay gap, which includes partners and employees, rose 2.6 percent to 68.9 percent, while the median pay gap also rose to 45.7 percent, up 2.1 percent on last year.

The mean bonus pay gap for employees is 48.5 percent for 2018, down from 53.2 percent in 2017. Some 59 percent of women received a bonus, compared to 57 percent of men.

Clifford Chance U.K. managing partner Michael Bates said in a statement: "We believe that transparency is the key to making progress in diversity, which is why we have again voluntarily expanded our pay gap reporting to include ethnicity, sexuality and disability data this year.

"The gender pay gap reported here remains unsatisfactory and we are committed to improving it. Our clear aim is find ways to develop and promote talented people irrespective of background, for the benefit of everyone."

Linklaters reported a 30.3% ethnicity pay gap on a mean basis for the whole firm, including equity partners, for 2018. Of the 83 percent of Linklaters staff that disclosed their ethnicity, 21 percent come from a BAME background.

Allen & Overy, meanwhile, has a 14% BAME workforce and reported a 21.6% pay gap.

Last year, CC was the first magic circle firm to report gender pay gap figures for its partners after the magic circle firms came under pressure from MPs to do so.