mate's rates

plural noun

1. informal.
   preferential rates of payment offered to a friend

Example Sentences

He attacked cuts to disability benefits and criticised "mate's rates" corporate tax deals - but welcomed a new levy on sugary drinks.

From BBC

He claimed the shares had been sold off at "mate's rates" to Mr Cameron's "friends in the City".

From BBC

Stephenson believes it may be even more of a family affair, as a G Townsend is recorded as working for the Southwark pottery at the same date: he is convinced it must be a relative, and that Townsend got "mate's rates" when he commissioned the handsome bowl.

From The Guardian