You do not have to increase an existing client's price simply because your public rate has risen. A long-standing client who needs little administration may still be a good fit for your service and capacity.
Review the actual arrangement before deciding. The question is whether you can continue providing the agreed support sustainably, not whether every client pays the same amount.
Understand what is becoming difficult
Separate a pricing problem from a service-design problem. If the client now receives more access than you originally agreed, clarify the service first. If the agreed service itself is no longer sustainable at that rate, a price conversation may be appropriate.
Consider the client's history, the work involved and the effect on your capacity. Avoid making the decision immediately after one frustrating message.
Give clear notice
Explain the proposed change, the date it would take effect and what the service will include. Check the agreement you already have before making changes; do not assume you can alter a price unilaterally.
A straightforward message might say: "I am reviewing the pricing for this level of support. From the proposed renewal date, the rate would be [price]. Here is what remains included, and here are the other options if that does not suit you."
The purpose is clarity. You do not need a long defence of every hour you work.
Offer genuine choices where you can
An existing group programme or less frequent reporting may offer a lower-cost option, provided it still fits the client's needs. Explain the difference in support rather than presenting a reduced service as identical.
You can also choose to preserve a legacy rate. That should be a deliberate decision you can sustain, not an arrangement you quietly resent.
Plan for a possible departure
Before proposing a higher price, consider whether you can accept that the client may decline. A price change is not a retention trick. Give them space to decide and handle the outcome professionally.
Record the agreed arrangement so billing and delivery remain aligned. The next step is to review whether your public offer and support boundaries are clear enough to prevent the same confusion for new clients.
Related guide: How to separate coaching revenue from the income you take home.