Standby time is the hour when the aide is in the house but not doing a task. The aide is waiting. Waiting for a delivery, a ride, a family member to get home, or a visit that runs late at the other end.

Local option: New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.

Most families never ask about it. The agency rarely raises it. The bill still has room for it, either as its own line or hidden inside the visit length. Either way, someone is paid for that hour.

That is the number underneath every rate. The labor in the bill is paid hours. Idle hours are paid hours too.

Where the price moves

Price follows the hours on the schedule, not the hours of real work. Two visits can look identical on paper and bill very differently if one is mostly waiting.

What it costs: The Missouri median for non-medical in-home care is $33 an hour, per the CareScout (Genworth) Cost of Care Survey 2025 state data tables, released March 2026. New Plan Care's standard rate is $34 an hour with a four-hour minimum, so a visit starts at $136 (newplancare.com/services).

Three things move the bill:

  • Booked time versus working time. Ask whether a visit is billed from arrival to departure, or only for the tasks.
  • Held time. Some agreements reserve the aide for a window. Ask whether you pay for that window even when nothing happens.
  • Early endings. If you end a visit partway through, ask what is owed for the rest of the block.

Five questions to ask before you agree

  • Is standby billed at all?
  • If it is billed, is it a separate line, or part of the visit length?
  • Does waiting time count toward the minimum block?
  • If the family member comes home late, who decides when the aide leaves, and what does that cost?
  • Is each answer in the signed agreement, or only said on a call?

Read the written terms

Look for the words on call, held, available, standby, and waiting. Each one can mean something different to a billing office. Ask the agency to define each word in writing. A word left undefined is a word you will argue about later.

A blank answer is a finding. If the agency will not say whether idle time bills, write that down next to the price. Silence on this line is worth as much as a clear answer.

Check the invoice against the schedule

After the first full month, lay the invoice next to the visit log. Count the blocks. Look for waiting time billed as care, and for care that was never billed at all. A mismatch on either side is a question for the office, not a reason to pay in silence.

For the full shape of a bill, read how to read a home care quote. For the longer planning view, see Budgeting a Year of Home Care.