Ashurst's top-earning partner made just under £1.1m last year, according to accounts filed this week with Companies House.

The £1.07m figure is 12% higher than the top of Ashurst's standard lockstep for 2009-10, which ranged from £362,000 to £940,000. The reason for the £130,000 discrepancy with the top of the lockstep was increased compensation for departing partners.

Ashurst's top-earning partner took home 13% more than last year's equivalent of £931,000. The top 10 City law firm's profit per equity partner last year climbed by 2.4% from £672,000 to £689,000.

The latest limited liability partnership (LLP) accounts also show that, despite a slight dip in the number of legal and support staff from 1,668 to 1,634, staff costs at Ashurst rose by 5% during 2009-10. Having stood at £105m at the end of 2008-09, costs rose to £110m over the year.

The number of members within the LLP also decreased slightly from 195 to 179. The dip comes in the wake of a number of partner departures throughout the year.

Ashurst finance director Nigel Morland commented: "Given the difficult economic climate, it was good still to record a small rise in profit per equity partner. We are also pleased that we continue to operate without any borrowings."