RBT Billable Hours Calculator

For Registered Behavior Technicians (RBTs) and the BCBAs who supervise them. Enter service hours for the month and total paid hours. The calculator shows billable percentage and the minimum supervision hours the BACB requires.

By the Best Therapy Productivity Calculator team · Last updated October 2026

What are the BACB supervision requirements for RBTs?

Based on the BACB’s RBT requirements (confirm in the current RBT Handbook):

Requirement	Detail
Amount	At least 5% of the hours spent providing behavior-analytic services each calendar month
Contacts	At least 2 real-time supervision contacts per month
Individual	At least 1 contact must be one-on-one
Observation	At least 1 contact must include observing the RBT with a client (in person or live video)
Group size	Group contacts can include up to 10 RBTs
Supervisor	A qualified BCBA or BCaBA who has completed BACB supervisor training

120 monthly service hours with a 6-hour supervision slice showing the 5 percent minimum, plus icons for two contacts, one individual and one with client observation — RBT supervision: the 5% minimum

Worked examples

Service hours / month	Minimum supervision (5%)
40	2 h
80	4 h
120	6 h
160	8 h

Billable percentage = service hours ÷ paid hours × 100. For 120 service hours in 150 paid hours: 80%.

Is supervision time billable?

It depends on the payer and the service. Some payers cover certain supervision activities under specific CPT codes; others don’t. Check your payer contracts and your organization’s billing policy.

Frequently asked questions

How do I calculate 5% supervision?

Multiply monthly service hours by 0.05. 120 hours needs at least 6 hours.

Does drive time count as service hours?

For the supervision calculation, only hours spent providing behavior-analytic services count. Drive time usually doesn’t. Check the BACB handbook and your employer.

What’s a good billable percentage for an RBT?

We haven’t found a public national benchmark. Compare with your employer’s target.

Planning tool only. The BACB’s current RBT Handbook and your payers’ rules take priority.

Sources

Behavior Analyst Certification Board, Registered Behavior Technician Handbook
Summary consulted: Move Up ABA, Understanding RBT Supervision Requirements