Accounts payable usually begins with a vendor invoice. Goods or services are delivered, the vendor sends its document, and the buyer checks and pays it. That is a sensible pattern for most purchases. It breaks down when the buyer already has the information needed to calculate what is due. The business may know the completed deliveries, approved contractor work, or sales that determine a commission before the vendor has prepared an invoice. Waiting can leave a gap between the work being completed and the cost being recorded. It can also create extra chasing for both parties. Business Central supports self-billed invoices for arrangements where the buyer and vendor have agreed that the buyer will prepare the invoice on the vendor's behalf. The purpose is not to bypass controls. It is to create a timely, consistent document from the facts both parties have agreed to use.
When Waiting Creates Work
Commission arrangements show the problem clearly. A distributor can see the sales made by an agent and apply the agreed commission rate. It may be able to calculate the amount accurately before the agent sends a document. Freight and contractor arrangements can work the same way when the buyer's shipment records, approved hours, milestones, or completed work determine the payable amount. Without a clear process, the finance team may wait for an invoice that simply repeats information it already holds. If the vendor is late, the cost is recorded later. If the vendor's calculation differs from the buyer's records, the team has another question to resolve. Neither outcome improves the commercial relationship. Self-billing gives the buyer a way to create the agreed purchase invoice instead. The vendor receives a clear record of what will be paid. The buyer receives a payable that can move through the usual payment cycle. Both parties work from a document based on the same agreed calculation method.
Agreements Come First
Self-billing only works where a genuine self-billing agreement exists. It should be a real commercial and tax-compliant arrangement between the buyer and vendor, not a shortcut adopted because an invoice has not arrived. The agreement should make clear who prepares the document, how the amount is calculated, how corrections are handled, and how each party retains the record. That upfront agreement is what makes the process safe. The buyer is not deciding unilaterally what the vendor is owed. It is applying a method both sides have already accepted. If the source records are incomplete or the calculation is disputed, the issue needs to be resolved before the document is created. Business Central supports this at the vendor level. A Boolean field on the Vendor Card marks the self-billing agreement. Once the vendor is marked, all purchase invoices for that vendor are flagged as self-billed. The setting makes the special arrangement visible where the invoice is created, rather than relying on a staff member to remember it.
A Week in Logistics
Consider a logistics company that pays owner-drivers based on completed deliveries. At the end of the week, it has delivery records, agreed rates, and any approved adjustments. Each driver has a self-billing agreement with the company. Instead of waiting for every driver to produce a separate invoice, the accounts team calculates the payment from completed and approved jobs. It creates the purchase invoice in Business Central on the driver's behalf. The driver has a document that shows what is being paid, and the business has a payable ready for its normal payment process. The same pattern can apply to a sales agent receiving commission. Once the period closes and returns are considered, the business can calculate the amount using the agreed terms and create the document. The process is faster because it begins with the operational records that created the obligation. Speed does not remove the need to check the numbers. The logistics company still needs a way to resolve disputed deliveries, changed rates, fuel adjustments, or cancelled jobs. A clear correction process is just as important when a self-billed invoice needs revision. Self-billing works best when the source data is trustworthy and the exceptions are defined before they occur.
Documents That Stay Traceable
A buyer-created invoice needs the same discipline as any other financial document. Business Central allows vendors to have a dedicated number series for self-billed invoices. That makes the documents identifiable and helps staff distinguish them from ordinary vendor invoices. The system also provides a Posted Purchase Invoice - Self-Billing Invoice layout. It presents the purchase document like a sales invoice and includes buyer, vendor, and VAT detail. The result is a professional document that the vendor can use, rather than an ad hoc calculation sent by email. Consistent numbering makes later questions easier too. If someone needs to investigate a payment months later, the finance team can find the self-billed document, the vendor agreement, the calculation basis, and the related payment. That is a stronger audit trail than a collection of manually created PDFs or one-off journal entries.
Controls Before Speed
Start by identifying arrangements that may be suitable. Ask whether there is a formal agreement, whether the business holds reliable source data, and whether the tax treatment has been considered. For any arrangement with uncertain tax treatment, involve the appropriate adviser before changing the process. Then decide who approves the calculation before posting. It may be a freight manager, sales manager, or project manager, depending on the arrangement. Their approval confirms the operational facts. Accounts payable can then check the vendor, numbering, tax treatment, and payment terms. Review the self-billed vendor list periodically. Agreements, rates, and commission structures change. Keeping the Vendor Card setting current helps ensure that the right invoices follow the right process.
Why It Matters
Self-billed invoices let a business record commission, freight, and contractor costs promptly when a buyer-created invoice is the agreed approach. Business Central keeps the arrangement visible, the documents identifiable, and the payment record connected to the calculation that supports it.