Canadian Law
In Canada
It is illegal to receive sexual services for money.
"286.1 (1) Everyone who, in any place, obtains for consideration, or communicates with anyone for the purpose of obtaining for consideration, the sexual services of a person is guilty..."
It is also technically illegal to receive money for sexual services.
"286.2 (1) Everyone who receives a financial or other material benefit, knowing that it is obtained by or derived directly or indirectly from the commission of an offence under subsection286.1(1), is guilty..."
I say "technically" because there is an exemption for the service provider.
"286.5 (1) No person shall be prosecuted for (a) an offence under section 286.2 if the benefit is derived from the provision of their own sexual services..."
The bastard Conservatives told everyone they were not criminalizing sex workers. They were lieing. They criminalized sex workers first, then said they will not be prosecuted. There might be a difference. In addition of course, when you criminalize one party to a transaction (the client) you criminalize the transaction and both parties to the transaction so the "Not Criminalizing Sex Workers" line was a practical as well as a technical lie.
In practice, and when dealing with adults, some politically motivated police departments will arrest the clients of street workers but none have been ignorant enough to go after the clients of "off street" workers.