How do I raise a client's social media retainer without losing them?

Put price reviews on a fixed date, such as the contract anniversary, rather than raising a price on a whim. Keep a running list of what has been added to the account since the last price was set and bring that list to the ask, along with proof of results, instead of leading with your own rising costs.

Most price increases that cost an agency a client aren't rejected over the number. They're rejected because the client was blindsided, and the only justification offered was the agency's own costs going up, which isn't the client's problem to solve.

The fix is to separate the decision of when from the decision of how much. Review every retainer's price against its current scope on a fixed date you've told the client about from the start, usually the contract anniversary or the start of a quarter. Then keep a simple running ledger of everything added to the account since the price was last set, from an extra platform to faster DM turnaround. None of those look big enough to reprice over individually, which is exactly why they go unpriced for months.

When the ledger adds up to real hours, bring it to the renewal conversation alongside proof of what the work is doing (leads, booked work, pillar performance), and state the increase as catching the price up to the account as it runs today, not as a rate hike. A client who won't pay for work they're already getting was underpriced either way.

The full method is in Raising Social Media Retainer Prices Without Losing Clients.