Ceded Premiums: Reinsurance Cost, Retention, and Investor Analysis

Ceded premiums are premiums an insurer transfers to a reinsurer in exchange for assuming an agreed portion of insurance risk.

For investor analysis, ceded premiums are the key bridge between Gross Written Premiums and Net Written Premiums. They show how much premium economics the insurer gives up in order to reduce or reshape the risk it retains.

A simplified written-premium bridge is:

Net written premiums = direct and assumed written premiums - ceded written premiums

The exact presentation can vary by issuer and accounting table, so the components should be read from the company's stated reconciliation rather than forced into a universal template.

A simple example

Suppose an insurer writes $1.0 billion of gross premium and cedes $220 million to reinsurers.

1Gross written premium      $1.00B
2Less ceded premium          0.22B
3Net written premium        $0.78B

The insurer has retained 78% of the premium in this simplified example.

That does not mean it retained exactly 78% of every possible loss. Reinsurance contracts can be proportional or non-proportional, can attach only above specified loss levels, can exclude certain perils, and can contain limits, reinstatements, commissions, and other terms.

Ceded written premium versus ceded earned premium

Written and earned timing still matters after reinsurance.

• Ceded written premium reflects premium ceded when the underlying insurance contract is written under the applicable accounting convention.
• Ceded earned premium reflects the portion of ceded premium associated with coverage recognized as earned over the period.

An insurer can therefore report different ceded written and ceded earned premium amounts in the same period because the underlying coverage is earned over time.

Do not mix written-premium and earned-premium denominators when comparing reinsurance cost ratios.

Ceded premium is not automatically a bad expense

A high ceded-premium amount reduces net premium retained, but the insurer may be buying economically valuable protection.

Reinsurance can:

• reduce catastrophe volatility;
• cap loss severity above a retention;
• support regulatory or rating-agency capital objectives;
• allow an insurer to write more business than it would retain alone;
• stabilize earnings across extreme loss scenarios; or
• transfer exposure to specific geographies, perils, or policy layers.

The relevant question is not simply whether ceded premium rose. The investor question is what protection was purchased, at what cost, and how the retained risk changed.

Ceded premiums versus ceded losses

Ceded premiums and ceded losses move through different sides of the reinsurance economics.

The insurer pays or accrues ceded premium for protection. If covered claims occur, the reinsurer may bear an agreed share of losses or reimburse losses above a contractual attachment point.

A company can therefore have substantial ceded premiums in a quiet catastrophe year and relatively little ceded loss benefit. In a severe covered-loss year, the relationship can reverse.

This is why one-year ceded premium alone does not tell you whether reinsurance was economically successful.

Commissions can change the effective cost

Under some proportional treaties, the reinsurer pays a Ceding Commission to the insurer. Some contracts also include profit commissions whose amount varies with loss experience.

A filing may therefore present ceded premium net of a profit commission or show commission income separately. Two insurers with the same gross ceded-premium percentage can have different effective treaty economics.

Read the presentation basis before calculating a retention or reinsurance-cost ratio.

Investor workflow

When ceded premium changes materially, inspect:

1. Gross versus net growth. Fast gross growth with flat net premium can mean the insurer is transferring more business to reinsurers.
2. Treaty type. Quota Share Reinsurance and Excess-of-Loss Reinsurance produce different premium and loss patterns.
3. Attachment and limits. More ceded premium may buy lower retention, higher limits, broader peril coverage, or simply more expensive renewal terms.
4. Commission treatment. Ceding and profit commissions can offset part of the apparent ceded-premium cost.
5. Counterparty quality. Protection is only as valuable as the contractual coverage and the reinsurer's ability to pay covered amounts.
6. Written versus earned basis. Do not compare a ceded-written ratio with a ceded-earned ratio as if they were identical.

Ceded premium is best read as the price and scale of risk transfer, not as a standalone signal of underwriting quality.

Sources

• MGIC Investment Corporation 2025 Annual Report, reinsurance transactions
• MGIC 2025 reinsurance disclosure
• SEC Regulation S-X, insurance company financial statements

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