Retainers, Milestones and Instalments: Choosing How a Client Pays You

How you get paid matters as much as how much

Two freelancers can agree the same total fee and have very different experiences depending on when the money arrives and what it is meant to cover. Blair Enns discusses retainers and alternative payment models in Pricing Creativity. This guide takes a practical view of five structures and how to check each against your calculated rates.

Five structures at a glance

A fixed fee with a deposit suits clearly scoped work: part up front, the rest on delivery. Milestone payments split a larger project into stages, each paid when it is finished. Instalments spread a fee over several months for clients who can afford it but not all at once. A retainer is a monthly payment for ongoing availability or a regular amount of work. A day rate with a cap suits work whose scope is genuinely unknown.

None is best in every case. The right choice depends on how clear the scope is and what the client needs from you.

What a retainer actually sells

A retainer sells one of two things: availability, meaning you will respond within a set time and keep capacity free, or a defined quantity of work each month. It is a mistake to sell it as simply a discount for regular work, because the client then expects unlimited output for the monthly price.

Be clear in your own mind which you are selling, and say so in the agreement.

Size it from your floor

Take the calculator's example: a minimum of 724 per day. A retainer that reserves four days a month has a floor of about 2,900. If you are also promising quick response times and holding capacity free that you could have sold elsewhere, price above that, for example 3,200 to 3,500. The extra is the cost of being on call.

Compare this with your yearly target. Needing about 116,600 a year means roughly 9,700 a month on average. One retainer of this size covers around a third of that, so you can see what share of your income a single client represents and how exposed you would be if they left.

What to write into a retainer

Specify what is included and what is not, how requests are made, the response time you are committing to and what happens to unused hours. Decide whether unused time rolls over, expires or is refunded, and say so. Add a review date, perhaps after three months, when either side can adjust the scope or the fee, and a notice period for ending it.

Without these terms, retainers tend to drift. The client feels they are not getting enough, or you feel you are doing too much. Written scope and a regular review keep both sides honest.

Signs a retainer is going wrong

Watch for these. You are consistently doing more than the scope allows, or less. The client's requests are increasingly urgent and small. You are starting to count hours to protect your margin, which suggests the monthly fee no longer reflects the work. If you notice these, raise it at the review rather than quietly resenting it.

Milestones and instalments for big projects

For a large project, tie payments to deliverables you control: for example a third on signing, a third when the first version is approved and a third on completion. This protects your cash flow and gives the client clear checkpoints. If a client cannot pay a large sum at once, offer instalments over a longer period, but make sure any work you front-load is covered by a written agreement stating that the fee is due even if the client later changes their mind.

Always take a deposit from a new client before starting. It confirms commitment and reduces the risk of unpaid work.

Choosing

Match the structure to the work. Use fixed fees for clear outcomes, milestones for larger projects, instalments to make a purchase affordable and retainers for continuing relationships. Whichever you choose, check it against the calculator: the total must cover your tax, expenses and target income, and each option must clear your floor.