The reason to stop rather than continue is that work built on unanswered questions frequently has to be redone. A page cannot be finished without knowing what it says, and proceeding with a guess produces something that looks like progress and is discarded when the actual answer arrives. Stopping is cheaper for both parties than building the wrong thing efficiently.
Pauses come from ordinary places and rarely indicate a problem with the engagement. A busy period at your end, a decision requiring somebody who was not in the conversation, waiting on content, or something entirely unrelated arriving. None of those need explaining and all of them benefit from being named, since silence and a pause look identical from the outside.
Say so rather than going quiet, which is the only thing that actually helps. A message saying you need three weeks converts an unknown into a date, and the work can be scheduled around it. The alternative is a series of follow ups that feel like chasing to both parties and produce nothing.
What happens practically is that everything completed is finished and delivered rather than left partial. Accounts are in your name from the day they are created, so nothing needs handing over. Decisions made to that point are documented, which means resuming starts from a written position rather than from two different memories of where things stood.
Expect the schedule to move by more than the length of the pause, which is worth setting as an expectation rather than a surprise. A three week pause does not resume three weeks later if the slot has been filled, and re entering a schedule takes whatever time the next availability requires. That is a capacity constraint rather than a penalty.
Invoicing follows the work rather than the calendar, which is the arrangement that makes a pause straightforward. Anything completed is invoiced and settled, and nothing accrues while the project sits. A business that has paid for what it received owes nothing further and has no pressure to resume before it is ready.
Consider whether the pause is actually a stop, which is a legitimate outcome and better named than avoided. Circumstances change, priorities move, and a project that no longer makes sense should end rather than sitting indefinitely as an open commitment. Saying so clears it for both parties.
Then decide a check in date rather than leaving it open, even a rough one. A month from now, or after whatever you are waiting on resolves, gives the pause a shape. Open ended pauses tend to become quiet endings, and a date is what prevents a project everybody still wants from lapsing by accident.
Confirm the pause in writing, including where things stand and what is outstanding from each side. That short message is what both parties read when work resumes, and it prevents the common situation where each remembers a different set of outstanding items.
Decide what happens to any deposit or staged payment already made, which is usually that it remains against the work rather than being refunded or expiring. Stating that removes the uncertainty that otherwise makes a client reluctant to pause even when pausing is the right decision.
Keep any access and accounts active during the pause rather than winding them down, since restoring them later costs more than maintaining them and occasionally involves a verification process that takes weeks. The subscriptions are small and the interruption they prevent is not.