There’s no membership or subscription fee to use LinkedIn Ads. All you need is a LinkedIn profile and a Campaign Manager account. It’s also a good idea to have a Company Page to help generate leads and run campaigns for brand awareness or product and services promotion.
Once you register to run LinkedIn Ads, you will need to provide credit card details. The network will only start charging you once you’ve started running campaigns. You can monitor your ad spend and adjust your bids and budget when necessary.