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An invoice tracks an amount of money exchanged between two parties, and its amount is summed across dimensions (payment status, line items, etc.) to generate reports. It is one of two core obligation-layer records; the other is Reserves, which track money expected to move but not yet recorded by an invoice. The company-wide Company Event Financials page places the invoice list beneath the aggregate Overview Report. One list can contain Draft, Owed, Partially Paid, Paid, and approved invoices, and an invoice may have an event link or remain unlinked. The Event Financials Tab shows the same model for one event.
Company-wide Financials page showing the Overview totals and a realistic invoice list with Draft, Owed, approved, and Partially Paid statuses

The company-wide invoice list combines type, event, payee, status, and amount in one working view.

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Invoices Point in Either Direction

An invoice in AI Insurance covers both kinds of bill — one received, from a vendor, an adjuster, or an expert, and one issued, billing an insured or a third party. An invoice therefore records money moving in either direction. There is no separate record type for expenses and income. One invoice can even carry both directions at once — a bill with a fee on it and a credit against it is one invoice with two line items pointing opposite ways.
This is why the app refers to the direction of money rather than to “payments” and “receipts”. Direction is a property of the amounts on an invoice, not a property of the invoice’s record type.

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What an Invoice Carries

Opening an invoice brings those dimensions together. In the example below, the payee and event identify the parties and context, while the line-item table separates the original amount, what has been paid, and what remains outstanding. The Payments section preserves the transaction that produced the paid figure.
Focused invoice detail showing the payee, linked event, invoice and due dates, line-item total, paid and outstanding amounts, and one recorded payment

A partially paid ALAE invoice: $48,750 total, $25,000 paid, and $23,750 still outstanding.

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Amounts Are Always Positive

Every line item’s amount is entered as a plain positive figure on an explicit Income or Expense side. The flow of money is always carried by that toggle, never by a minus sign — the UI disallows entry of negative amounts outright.
New Invoice Line Items section with Attorney Fees and Expenses entered as $12,500 and the Expense side selected in the Income or Expense toggle

A new invoice keeps the amount positive and stores its direction separately; this ALAE line is an Expense.

When you later edit a partial payment, the payment remains attached to one fixed line item and inherits that line item’s direction. The Edit Payments dialog accepts another positive magnitude; it does not show a second direction toggle that could contradict the line item.

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The Three Figures Every Invoice Reports

Once an invoice exists, it reports three amounts:

Total

The net of every line item — the money this invoice commits to move.

Paid

The net of every payment recorded against it so far.

Balance Due

Total minus Paid — what is still outstanding.
Because line items can point in either direction, all three of these are net figures. An invoice with a $1,000 expense line and a $200 credit line has a total of $800, not $1,200. Paid nets the same way. On an invoice with a $400 expense line and a $200 income line, settling both records $200 paid, not $600. Balance due inherits both, because it is the difference between two net figures. An $800 total with $300 recorded against it leaves $500 outstanding.

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Worked Example

An invoice with two line items: a $1,000 subrogation recovery on the income side, and $400 of associated legal fees on the expense side. Its total is $600 income — the net of the two. Balance due changes direction between the first and second rows. Collecting the recovery brings in more than the invoice nets to, so what remains outstanding is no longer money owed to the business but the legal fee still owed by it. Total never moves — it is fixed by the line items at creation. Paid accumulates as money is recorded on either side, and Balance due is always the difference between the two.

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What Can Change After Creation

An invoice’s type and line items are fixed the moment it is created. Line items cannot be added, removed, or amended, and the type cannot be switched. Corrections are made by voiding the invoice and creating a replacement. For a draft, “created” is the moment it is finalized — until then its type and line items are still editable.
The following remain editable: the dates, the memos, the event or policy it links to, its files, and — through recording and removing payments — its status. The Invoice Lifecycle covers this in full.