Reinsurance beyond Excel: treaties, technical accounting and brokerage notes in a single management system

The reinsurance paradox: big numbers, small tools

Reinsurance is the market where insurers insure themselves: significant capital, international counterparties, sophisticated contracts. And yet, at the operational level, it is also one of the sectors where day-to-day administration remains most artisanal. In the ceded-reinsurance departments of insurers, in reinsurers' offices and above all at reinsurance brokers, it still happens today that treaties worth millions in premiums are administered with a battery of Excel sheets: one for the treaties in force, one for the quarterly account statements, one for outstanding balances, plus a series of Word documents for the brokerage notes. Every renewal season adds new sheets, and every person who leaves the office takes away a piece of the logic they were built on.

The reason is structural: reinsurance is a niche market, and the available software packages are either designed for internationally sized companies — with costs and complexity to match — or do not cover the specifics of reinsurance intermediation at all. Excel survives for lack of proportionate alternatives, not by choice.

What a reinsurance management system is

A reinsurance management system is software that administers the entire life cycle of reinsurance relationships: the register of treaties and facultative placements, reinsurers' participations, technical accounting with its account statements, brokerage notes, collections and payments, deadlines and reporting. What distinguishes it from a generic insurance system is that the data model is built around the objects specific to this market: the treaty with its sections and underwriting periods, each reinsurer's participation share, the accounting entry in its original currency, the broker's brokerage note.

The fundamental difference from spreadsheets: in Excel every document is recalculated from scratch and lives a life of its own; in a management system every document — account statement, brokerage note, settlement report — is a view generated from the same underlying data. If the data exists only once, the documents cannot contradict each other.

Treaties and facultatives: the data structure comes first

Proportional and non-proportional in the same model

A quota share treaty, a surplus, an excess of loss, a stop loss: different contractual forms with different economic logics — premiums and claims ceded in proportion for proportional business, cover premiums and layered recoveries for non-proportional. A serious reinsurance system represents them all in a single coherent model: the treaty with its sections, the classes covered, the underwriting period, the economic conditions (commissions, profit participations, minimum and deposit premiums) and the participation panel, where each reinsurer appears with its share. It is this structure that later makes it possible to calculate automatically who is owed what, on every single entry.

Annual renewals without starting from scratch

Renewal season is when the Excel approach shows its cost: every year sheets are duplicated, shares and conditions updated by hand, errors reintroduced. In a management system the renewal is a system operation: the new year's treaty is created from the previous one, inherits structure and participations, records the changes — and the history remains queryable, year on year, without opening ten different files.

Technical accounting: where spreadsheets really break

The administrative heart of reinsurance is technical accounting: for each treaty and each period — typically the quarter — an account statement is drawn up with ceded premiums, commissions, paid claims, reserves, deposits and the related interest, and the balance due to or from each reinsurer is determined according to its share. Done by hand, this work is slow and fragile: a share updated in one sheet but not in another is enough to produce wrong balances that surface months later, during reconciliation with the counterparty.

In a management system technical accounting becomes a flow: entries are recorded once, the system automatically allocates them across the participants' shares, the account statements come out already balanced, and the open items — who owes what, to whom, since when, in which currency — are an always-current view instead of a quarterly reconstruction. Multi-currency handling is native: every entry keeps its original currency and the exchange rates applied. The same applies to claims: recoveries due from reinsurers are produced from the same data used to manage the claim — a theme close to direct intermediation too, as in our article on claims management for insurance intermediaries.

The reinsurance broker's brokerage notes

For the reinsurance broker there is one document that sums up all of its administrative work: the brokerage note, with which it accounts to the parties for the period's entries — premiums, brokerage commissions, claims, balances — on the contracts it has intermediated. When the notes are born in Word or in separate sheets, every document is an opportunity for error and every check a manual comparison between files. When they are generated by the management system instead, they come from the same data as the technical accounting: the note is consistent with the account statement by construction, its sequential number and status (issued, sent, collected, settled) are tracked, and at period-end the brokerage earned can be read from a report instead of being reconstructed by hand.

Compliance and reporting: data ready for whoever asks

Reinsurance does not live in a regulatory vacuum: for insurance undertakings the reference framework is Solvency II, under which reinsurance cessions directly affect the calculation of capital requirements and supervisory reporting, with technical standards defined at European level by EIOPA and national supervision by IVASS in Italy. The registered reinsurance intermediary, too, has its own obligations of conduct and documentation. The operational substance is one: when the company, the auditor or the authority asks for a figure, the answer must be extractable from the system and consistent with the documents issued — not the product of days of work across cross-referenced sheets. A system with orderly technical accounting produces this readiness as a natural by-product of daily work.

Getting there: in stages, starting from the data you have

As with the direct agency — we covered it in from Excel spreadsheets to a custom management system — the path is not a big bang but a phased migration: start from the treaty register and participations, import the historical data from the existing sheets, bring the new financial year's technical accounting into production, and then extend the system to brokerage notes, deadlines and reporting. In a niche market like this, the strength of a custom system is that the data model grows out of the operator's actual conventions — treaty types, currencies, reporting periods — instead of bending the work to a package born for someone else.

In summary

Reinsurance has remained one of Excel's last territories for lack of proportionate tools, not because spreadsheets are adequate: treaties, technical accounting and brokerage notes are structured objects that demand a single data model. A custom reinsurance management system represents proportional and non-proportional treaties in the same model, automatically allocates entries across reinsurers' shares, generates account statements and brokerage notes from the same data — eliminating inconsistencies by construction — and keeps open items, currencies and deadlines under continuous control. Migration happens in stages, importing history from the existing sheets, and the benefit is measured in days of administrative work returned at every period close.

Frequently asked questions

What is reinsurance technical accounting?

It is the periodic accounting of the economic relationships under a reinsurance contract: for each treaty and period, ceded premiums, commissions, claims and deposits are calculated, and the balance due to or from each reinsurer is determined in proportion to its participation share.

What is a brokerage note?

It is the document with which the reinsurance broker accounts to the parties for the economic entries on the contracts it has intermediated — premiums, brokerage commissions, claims and period balances. In a management system it is generated from the same data as the technical accounting, guaranteeing consistency between documents.

Can one system handle proportional and non-proportional treaties together?

Yes, if the data model is designed for it: quota share, surplus, excess of loss and stop loss share the same register, participations and accounting flow, and differ in the economic logic the system applies to each form.

How complex is migrating from the existing Excel sheets?

Less than feared, if done in stages: start from treaties and participations, import the history from the sheets with a data clean-up, and begin technical accounting from the new financial year. Daily work never stops.

At A126 we design custom management systems for the reinsurance sector: treaty and facultative registers, multi-currency technical accounting, account statements, brokerage notes, deadlines and reporting, built on the actual operating conventions of companies and brokers. If your reinsurance operations still live on spreadsheets, contact us for a free consultation.

A126 Corporate Advisors — custom management software for the insurance and reinsurance sector.