What is a ceding commission in reinsurance?

A ceding commission is money the reinsurer allows back to the cedent on proportional business, usually as a percentage of ceded premium, to recognise acquisition and expense. It is a clause with a basis, not a round number from last year's email. Quota share and surplus use it. Excess of loss usually does not. If you are booking ceding commission on an XoL layer because the spreadsheet had a commission column, stop.

The formula lives in the wording: rate, sliding scale if any, minimum and maximum, premium basis (written, earned, gross, net of something). Profit commission is a different formula. Do not flatten them into one cell called commission.

The arithmetic, cited

Fictional walkthrough: ACME Construction Ltd, acme.example, sits in a 30 percent property quota share. Subject premium on the ACME policy for the year is USD 1,200,000. Ceded premium is 30 percent, which is USD 360,000. The wording allows a 25 percent ceding commission on ceded premium. Commission is USD 90,000. Net premium to the reinsurer is USD 270,000. The reinsurer still takes 30 percent of on-cover losses. Those four numbers only hold if premium, share, and commission rate all cite the same contract and the same period.

If the bordereau uses USD 1,200,000 as if it were already the ceded figure, commission is wrong by a factor of the share. If the assistant applies 25 percent to ground-up premium and then cedes 30 percent of the remainder, the treaty was not followed. Treaty reinsurance ops is applying the clause to the rows, not redesigning the economics in Excel.

Sliding scale: if the wording reduces commission when the loss ratio exceeds a stated threshold, you need cited incurred and cited earned on the same basis the clause uses. A loss ratio calculated on a different earned definition is a conflict, not a true-up you can bury in cash.

Where files break

Cedent reporting fails when the commission rate in the accounts is the rate from the placing email, and nobody can show the clause. It fails when currency converts commission on a different day than premium. It fails when ACME is facultative outwards with no ceding commission of this kind, and a technician still applies 25 percent because the quota-share workbook was open.

The Q2 2026 premium bordereau for ACME-related rows might list 14 policies and USD 2,400,000 ceded premium. Commission should foot to the rate on that ceded premium, or to the sliding-scale output, with a total cell you can cite. A covering-email commission figure that does not match the sheet is a conflict. The bordereaux automation guide is the mapping job. This page is the clause job.

Profit commission, overriding commission, and brokerage are not ceding commission. Brokerage is often a placing cost on the original business or on the reinsurance placement. Overriding commission is another allowance. If three rates appear in three documents, extract three fields. Do not pick the largest.

What not to invent

This page will not quote a market range and call it typical. Hard and soft markets change what people will pay. Your evidence is the wording in force for this year of account. If endorsement 2 changes the rate from 25 percent to 20 percent from 1 July, the live field cites endorsement 2 for the second half, and the first half cites the original clause. Booking a single blended rate with no span is how audit finds the year.

ACME's slip TIV USD 42,000,000 versus SOV USD 47,100,000 does not set ceding commission. Commission follows premium, not TIV. Using TIV as a commission base because the TIV looked solid is a different contract than the one you signed.