Trowers & Hamlins is set to issue a cash call to its fixed-share partners in response to partnership taxation changes brought by HM Revenue & Customs (HMRC).

The firm plans to ask its fixed-share partners, called "participating partners", to put in 30% of the fixed portion of their salary. The amount includes a sum of £20,000 that is paid in on entering the partnership.

An increasing number of firms have been mulling over asking their salaried partners to contribute capital since the HMRC published proposals for changes to the partnership tax regime in December.