UBS AG, Switzerland’s largest bank, added a bonus for its 7,000 U.S. brokers to encourage them to create financial plans for wealthy clients.

The advisors will be paid a bonus of as much as 4 percent in deferred compensation of the revenue generated from clients who received a plan, according to Gregg Rosenberg, a spokesman in New York. The bank also increased some brokers’ expense allowances by $500 to $2,000 each, Rosenberg said.

The biggest U.S. stock brokerages are encouraging advisors to draw up more-formal financial plans for clients rather than recommending individual securities or mutual funds. Mary Mack, Wells Fargo & Co.’s brokerage chief, said last month that she will encourage her sales force to put clients into managed accounts when she takes over the unit.

Operating income at UBS’s Americas wealth-management unit rose 12 percent in the third quarter to $1.75 billion, according to its website. It spent $1.24 billion of that on personnel.

The Wall Street Journal reported yesterday on the UBS bonuses.