How to price an agency retainer, step by step

Start from expected monthly hours

List the recurring activities the client is buying: preparation, production, review, revisions and reporting. Estimate each from relevant work records or a clearly labeled assumption where no history exists. Separate one-time setup from recurring delivery so the first month's effort does not silently become a permanent allowance. Define the number of outputs or the available capacity before putting a fee beside it.

A fictional content engagement might need 12 hours for recurring production and 4 for research and revisions. The important question is what those 16 hours include, not whether another agency charges a similar amount. Keep the assumptions with the estimate and identify client dependencies that could change it. For general positioning and value-pricing discussion, read how to price agency services. This calculation is specifically about a recurring capacity commitment, rather than the entire service-pricing strategy.

Add a delivery buffer

A delivery buffer allows for uncertainty you can explain: variable research, extra quality checks or a revision cycle that sometimes takes longer. Do not add an unexplained percentage just because a formula permits it. Choose a round hours allowance for the uncertainty in this engagement, then test it against records after delivery. The buffer should not turn an excluded service into an included promise.

In the fictional estimate, the agency adds 4 hours to the 16 delivery hours because review effort varies. That is an illustrative planning choice, not an industry benchmark. Document what would use the buffer and what still requires a change request. If the client expects a guaranteed set of outputs, explain how revisions and dependencies affect that commitment. A buffer held for delivery uncertainty is different from hours available for any new request the client happens to send.

Include account management time

Count recurring coordination: client calls, scheduling, status updates, review preparation and the decisions needed to keep delivery moving. An account can look comfortably priced when only production is counted and difficult to serve once these activities appear. Decide which coordination is part of the included service and which internal overhead belongs in your broader target-rate calculation.

For this example, monthly account management is estimated at 4 hours in addition to the production block and buffer. Avoid double counting the same meeting in both delivery and management. State whether client calls consume an hours allowance so usage reports match the commercial explanation. Use clear task categories to compare the estimate with actual work later. ABH time tracking ties records to a client, project and task, and internal approval supports their review. The records inform your estimate; they do not calculate a complete cost of serving the account.

Choose flat fee or capped hours

A flat-fee offer defines a recurring service commitment at an agreed price. A capped-hours offer defines the allowance and what happens when it is exhausted. Either needs services, exclusions and a change route. A flat fee should not be described as unlimited simply because the invoice amount is stable. An hours cap should not imply that any service is included within it.

Decide which promise the client can understand and the agency can deliver consistently. Discuss unused capacity, overages and request prioritization before accepting the fee. The flat-fee versus capped-hours guide explains the model choice. The hourly, fixed and value pricing guide covers wider approaches. ABH Pro supports flat-fee and capped-hours retainers, with usage per period and manual invoice generation. It does not make the commercial model decision or automatically charge extras.

Worked example with round numbers

Illustrative fictional example, USD, excluding taxes: expected recurring delivery is 16 hours, the explained delivery buffer is 4 hours and account management is 4 hours. Total planned monthly commitment is 16 plus 4 plus 4, or 24 hours. The agency chooses a $100 target rate for this example. The working fee is 24 times $100, or $2,400 per month.

The target rate is an input selected by this fictional agency, not a market average or an ABH recommendation. It needs to reflect the agency's own costs and commercial aims. A $2,400 fee is not $2,400 profit. Purchases, staff costs, overhead and other commitments still matter. If the offer is capped at 24 hours, state which activities count and what happens at the cap. If it is flat fee, state the included deliverables instead of quietly presenting the estimate as an unlimited service promise.

Keep the calculation with the scope agreement checklist and decide unused-hours treatment. Before sending the offer, ask whether the team could meet the commitment during a busy month. A price is only useful when the scope and available capacity behind it are credible.

Test the price against actual usage after three months

After three completed periods, compare reviewed work with the estimate by activity category. Examine production, revisions, management and genuinely new requests separately. A single unusually quiet month should not erase the original capacity commitment, and a single difficult month should not automatically justify charging the client more. Look for the cause and whether it was within the accepted scope.

For the fictional example, period totals of 22, 24 and 28 hours average about 24.67 hours. That observation prompts a review of why the third period grew; it is not proof of profitability or a new agreed fee. ABH retainer usage on Pro supplies period evidence, while the agency performs pricing analysis outside the tool. The retainer feature overview explains the record and manual invoice action.

Check the estimate, scope exclusions and the coordination habit before choosing a change. If additional revisions were outside scope, use the accepted change route. If recurring effort was underestimated, prepare options for the next term using the renewal playbook. State the effective date and obtain agreement. Do not alter the current period's fee merely because an internal estimate no longer fits.