How much do marketing agencies charge per month?
According to Whito’s 2026 UK agency retainer research, ongoing single-channel retainers commonly fall around £1,250–£3,500 per month, while broader full-service retainers can range from approximately £3,500 to £16,750 per month.
These figures reflect the cost of professional agency services, where businesses are paying for specialist expertise, ongoing execution, account management and, depending on the service, marketing strategy.
For an ambitious startup, a newly established business or a growing SME, these costs can quickly become a serious monthly overhead. Especially when marketing needs to operate across several channels rather than one.
Here's what UK agency marketing services typically cost.
Indicative UK agency planning ranges, not like-for-like quotes. VAT, setup fees, advertising budgets and specialist creative work may be extra.