Billing

One number for what somebody owes.

The most common billing defect in this category is not a wrong total — it is two screens quoting different ones. What the practice sees and what the client sees come from the same place here, deliberately.

Documents

Invoice, statement, superbill

An invoice asks for what is outstanding. A statement summarises a period. A superbill is what a client hands their own insurer — where the gross is the point, not the balance. Three documents because they answer three questions.

Agreement

Good Faith Estimates

A written estimate of expected cost under the federal No Surprises Act, kept with the client's record rather than in somebody's email — so the practice can show what was quoted and when.

Reality

Write-offs that stay honest

A session written off is recorded as written off, not deleted. It leaves the client's balance without leaving the history, so a practice can still answer what happened to that appointment a year later.

Beyond sessions

Products, not just time

A workbook or a course sold to a client sits on the same invoice as the session, because that is how a practice actually bills — and it counts toward the same outstanding figure.

Where the number comes from.

One session, after the payer has ruled on it. Every line is held on the session itself, not worked out again by each screen that needs it. That is what stops two screens disagreeing.

Individual therapy Aug 17, 2026 · 50 min

Insured Self-pay

Session fee: $200.00
Contractual adjustment: what the payer does not allow, and nobody owes; −$50.00
Insurer's share: billed to them, not to the client; $120.00
Client's share: copay and coinsurance, once the payer has ruled; $30.00
Written off: agreed hardship — recorded, not deleted; −$10.00
Client owes: $20.00

Four of these five lines are the payer's doing. The client is asked for the last figure and never for the first.

Session fee: $200.00
Contractual adjustment: no payer, so nothing is disallowed; —
Insurer's share: there is no insurer; —
Client's share: the whole fee is theirs; $200.00
Written off: a sliding-scale reduction, recorded as one; −$40.00
Client owes: $160.00

Same five lines, same arithmetic. Nothing is a special case — a self-pay session is one where the payer's columns are simply empty.

The client's portal shows the last line. It does not show them the fee, the insurer's share, or a balance that is still with a payer — asking somebody in therapy for money that is not theirs to pay is the defect this arrangement exists to prevent.

Ledger A. Whitlock

Date	Service	Fee	Owed	Documents
Aug 17	Individual, 50 min	$200.00	$20.00	Invoice
Aug 10	Individual, 50 min	$200.00	$30.00	Invoice
Aug 3	Individual, 50 min	$200.00	$0.00	Invoice
Owed by this client			$50.00

The first row is the session broken down above: a two hundred dollar fee, twenty dollars owed. The practice's ledger and the client's portal are reading the same number, because there is only one to read.

Selling a workbook is not billing a session

A practice can sell things — a workbook, a course, a printed measure — and they are recorded as sales rather than as charges. A charge hangs off an appointment and can be put on a claim; a product was never booked and is not claimable, and a workbook on an insurance claim is a false claim. Keeping them apart is what makes that impossible rather than merely discouraged.

Money going back out is its own event

A refund is recorded as a refund, not as a negative payment. It sounds like a bookkeeping nicety and it is the difference between two answerable questions: a payment means money arrived, and every total in the product is written on that basis. Netting a refund off a payment would quietly change what "received" means in every report that uses the word.

A client should never be chased for a figure the practice knows is wrong.

What a client owes is worked out once and read everywhere — the practice's ledger, the client's portal, and the reminder that goes out when an invoice passes its due date. A person in therapy being asked for money they have already paid is not a rounding error; it is the kind of thing that ends a working relationship.

How claims are filed

The rest of it

Start with the week you are already having.

Set up a practice, put a real week in the calendar, and see whether it fits before you move anything across.

Start free Read the documentation