Reinsurance for Start-Up Insurers: A Day-One Programme
On this page
- Reinsurance for Start-Up Insurers: Building a Day-One Programme That Satisfies Regulators and Rating Agencies
- Key Takeaways
- Why Does Reinsurance Matter So Much for Start-Up Insurers?
- What Do Regulators Expect From a Start-Up's Reinsurance?
- What Do Rating Agencies Look For?
- What Should a Day-One Programme Include?
- Worked Example: A Three-Year Capital Plan, Gross vs Net
- Which Structure Fits Which Start-Up?
- Which Mistakes Do Start-Ups Make With Reinsurance?
- How Should a Start-Up Prepare for Its First Placement?
- How Should the Programme Evolve After Year One?
- What Does the Market Look Like for 2027?
- Checklist for Founders, CFOs and CROs
- Key Terms
- Sources
- Frequently Asked Questions
Reinsurance for Start-Up Insurers: Building a Day-One Programme That Satisfies Regulators and Rating Agencies
Last reviewed: November 2026
Reinsurance for start-up insurers is the programme a new insurer puts in place from its first policy to limit volatility, support its capital plan and give regulators and rating agencies confidence. For most start-ups it is built around a quota share, with per risk and catastrophe protection on top.
A start-up has small capital, no track record and a business plan that regulators will test line by line. Reinsurance is one of the few levers that addresses all three at once.
This guide is for founders, CEOs, CFOs, CROs and heads of reinsurance at new insurers, and for reinsurers assessing start-up support. It covers what regulators and rating agencies expect, how to design the programme and a worked three-year capital plan.
Key Takeaways
- A start-up's business plan and capital forecasts must show how reinsurance supports solvency in each of the first years.
- Under Solvency II, the scheme of operations must include guiding principles on reinsurance and three-year forecasts of capital requirements.
- A quota share is usually the core of the programme, with per risk and cat XoL protecting the retained share.
- Rating agencies look harder at reinsurance quality when the insurer itself is unproven.
- Quota share step-downs should be tied to capital triggers, not calendar dates.
- Treaty operations, such as bordereaux, settlements and recoveries, must work from day one, not after the first loss.
Why Does Reinsurance Matter So Much for Start-Up Insurers?
Reinsurance lets a start-up write a viable book on limited capital while keeping volatility within what its balance sheet can absorb. It also signals to regulators, rating agencies and brokers that experienced risk carriers back the plan.
A start-up with no history cannot use its own loss experience to support pricing. Reinsurer support adds external validation of the underwriting approach.
The trade-off is cost. Reinsurer margin on a large quota share is a material drag on profitability, so the programme should be designed to shrink as the start-up proves itself.
What Do Regulators Expect From a Start-Up's Reinsurance?
Regulators expect reinsurance to be part of the authorisation case, with forecasts showing that the insurer stays solvent as it grows. The detail varies by jurisdiction, so always confirm the current local requirements.
Solvency II Scheme of Operations
Article 23 of the Solvency II Directive requires an applicant's scheme of operations to set out its guiding principles as to reinsurance and retrocession. For the first three financial years, it must also include a forecast balance sheet and estimates of the future SCR and MCR.
The same article requires estimates of the financial resources intended to cover technical provisions, the MCR and the SCR. For non-life business, it also requires estimates of premiums, claims and management expenses.
In practice, this means the reinsurance programme must be modelled into every year of the forecast. A programme described only in words will not satisfy that test.
UK: The PRA Mobilisation Regime
The UK Prudential Regulation Authority operates an optional mobilisation regime for insurers, introduced through policy statement PS2/24. It allows a new insurer to be authorised with business restrictions and proportionate requirements while it completes its build-out.
The PRA's page states that the mobilisation plan must show that items still to be completed can be completed within the coming 12 months. Reinsurance arrangements are a natural item in that plan, because they must be bound before full business can start.
Other Jurisdictions
Other regulators set their own capital, licensing and reinsurance rules for new entrants. Check the current rules of your licensing regulator, including any local cession, retention or security requirements, before fixing the programme.
What Do Rating Agencies Look For?
Rating agencies apply their normal rating criteria to start-ups, but with extra caution because there is no operating track record. AM Best, for example, has published a criteria procedure specifically for rating new company formations.
Capital strength carries particular weight. AM Best's BCAR, set out in its Understanding Universal BCAR criteria procedure, measures capital at four confidence levels and takes catastrophe PMLs net of reinsurance.
The same criteria note that balance sheet strength also considers dependence on reinsurance and the quality and appropriateness of the reinsurance. A start-up with a strong programme and strong panel therefore presents better than one relying on cheap, weak capacity.
What Should a Day-One Programme Include?
A typical day-one programme combines a quota share, per risk and catastrophe excess of loss, and facultative capacity for risks above treaty limits. The mix depends on the lines written and the capital available.
Quota Share as the Core
A quota share cedes a fixed percentage of every policy, so it cuts premium, reserve and catastrophe risk in proportion. The ceding commission helps fund acquisition costs while the start-up builds scale.
A sliding or stepped quota share, which reduces the cession over time, lets the start-up retain more as its capital and track record grow. The difference between proportional and non-proportional covers is explained in our guide to proportional vs non-proportional reinsurance.
Excess of Loss on the Retained Share
Per risk XoL caps large single-risk losses on the retained share. Cat XoL protects the retained share against accumulation, with a limit set by the capital test that binds.
Facultative Support
Large or unusual risks that exceed treaty limits need facultative cover. When to use each is covered in our treaty vs facultative reinsurance guide.
Security
Use strongly rated reinsurers, and accept lower-rated capacity only against enforceable collateral. Panel quality matters more for a start-up than for an established insurer.
Worked Example: A Three-Year Capital Plan, Gross vs Net
The example below is illustrative and simplified. All figures are in USD millions; the start-up has initial capital of 100 and a risk appetite of at least 150% SCR coverage.
The SCR figures are assumed outputs of the start-up's capital model. Own funds are year-end balances after expected results, including start-up costs and the expected cost of reinsurance.
Plan: gross written premium of 80, 150 and 220 in years 1 to 3. The day-one programme is a quota share of 40%, 30% and 20%, plus per risk XoL and cat XoL to the 1-in-200 on the retained share.
| Item | Year 1 | Year 2 | Year 3 |
|---|---|---|---|
| Gross written premium | 80 | 150 | 220 |
| Without reinsurance | |||
| SCR | 70 | 110 | 150 |
| Own funds (year end) | 92 | 89 | 95 |
| SCR coverage | 92 ÷ 70 = 131.4% | 89 ÷ 110 = 80.9% | 95 ÷ 150 = 63.3% |
| With day-one programme | |||
| Quota share cession | 40% | 30% | 20% |
| SCR | 38 | 55 | 80 |
| Own funds (year end) | 90 | 85 | 89 |
| SCR coverage | 90 ÷ 38 = 236.8% | 85 ÷ 55 = 154.5% | 89 ÷ 80 = 111.3% |
Without reinsurance, the plan breaches 100% coverage in year 2. With the programme, years 1 and 2 meet the 150% appetite, but year 3 falls to 111.3% because the quota share steps down faster than capital grows.
Own funds are lower with reinsurance, by 2, 4 and 6 at each year end. That is the cumulative expected cost of the reinsurer's margin.
Fixing Year 3
The start-up revises year 3 to hold the quota share at 30% and grow premium to 190 rather than 220.
| Year 3 option | Gross premium | Cession | SCR | Own funds | SCR coverage |
|---|---|---|---|---|---|
| Original plan | 220 | 20% | 80 | 89 | 111.3% |
| Revised plan | 190 | 30% | 58 | 88 | 88 ÷ 58 = 151.7% |
Own funds are slightly lower in the revised plan because more margin is ceded. Coverage, however, returns above the 150% appetite.
The lesson for start-ups: model the programme into every year of the forecast and tie quota share step-downs to coverage triggers. If growth outpaces capital, either hold the cession, slow growth or raise capital before the step-down.
The lesson for reinsurers: a stepped quota share that reduces faster than the start-up's capital grows can push the cedent towards the limit of its appetite. Ask to see coverage at each step before committing to a multi-year structure.
Which Structure Fits Which Start-Up?
The right day-one structure depends on the lines written, the capital raised and the start-up's distribution model. The table maps common situations to the usual choice.
| Start-up situation | Usual day-one structure | Why |
|---|---|---|
| Short-tail property or specialty, modest capital | High quota share plus cat XoL on the retained share | Shares volatility and catastrophe risk while capital is thin |
| Well-capitalised start-up with experienced team | Lower quota share or XoL-led programme | Retains more margin while still capping volatility |
| Long-tail casualty | Quota share with strong security and per risk XoL | Reserve risk and long recovery periods need strong reinsurers |
| Start-up writing large commercial risks | Per risk XoL plus facultative capacity | Line sizes exceed retained capacity |
| Fronted or hybrid model | High cession to capacity providers with collateral | The licensed insurer retains little risk but needs secure recoveries |
| Cat-exposed personal lines | Cat XoL to the binding return period plus aggregate protection | Accumulation drives capital and earnings risk |
These are starting points. The final programme should be tested against the capital plan year by year.
Which Mistakes Do Start-Ups Make With Reinsurance?
Most start-up reinsurance problems come from planning the programme for authorisation rather than for operation. These seven are the most common.
Describing the Programme Without Modelling It
Regulators want forecasts that show the programme's effect each year. A narrative description without numbers is a weak authorisation case.
Calendar-Based Quota Share Step-Downs
Step-downs fixed by date can cut cession before capital catches up. Tie them to coverage triggers.
Accepting Weak Security for Price
A start-up's credibility rests partly on its reinsurers. Weak or unrated capacity without collateral undermines both capital relief and confidence.
Underestimating the Cost of Ceding
Quota share margin is a material drag on early profitability. Measure it and plan to reduce reliance as the business proves itself.
Ignoring Commission Adequacy
A commission below actual acquisition and administration costs strains early results. A commission well above them can hide the reinsurer's margin.
No Treaty Operations at Launch
Bordereaux, premium accounting and recovery processes are often built after the first quarter. Late or inaccurate bordereaux damage the relationship with new reinsurers quickly.
Single-Year Thinking
A one-year programme leaves the start-up exposed to capacity and price changes at its first renewal. Multi-year support or strong relationships reduce that risk.
How Should a Start-Up Prepare for Its First Placement?
Prepare the reinsurance submission alongside the regulatory application, using the same business plan and forecasts. The data, steps and questions below make that practical.
What Should the Submission Include?
| Item | Why reinsurers and regulators need it |
|---|---|
| Three-year business plan by line, with premium and loss assumptions | Underpins pricing and capital forecasts |
| Underwriting guidelines and authority limits | Shows how the book will be controlled |
| Management and underwriting team experience | Substitutes for an operating track record |
| Pricing evidence and benchmark loss ratios | Supports the plan's loss assumptions |
| Exposure data and cat modelling for property lines | Sizes cat protection and the capital need |
| Capital plan with gross and net SCR forecasts | Shows how reinsurance supports solvency |
| Operating model for bordereaux, claims and settlements | Shows the treaty can be administered |
Implementation Steps
- Agree risk appetite and target capital coverage with the board.
- Model the programme into the three-year capital forecast.
- Approach reinsurers with the same plan used for authorisation.
- Bind the programme before the first policy is written.
- Test bordereaux, premium accounting and recovery processes before launch.
Newly bound programmes often suffer operational delays, as covered in our guide to onboarding delays for newly bound reinsurance programmes.
Which Questions Should the Board Ask?
- Does the capital plan clear risk appetite in every year, at every quota share step?
- What happens to coverage if growth is faster or losses are worse than plan?
- How strong is the panel, and what collateral backs any lower-rated lines?
- Can the start-up produce accurate bordereaux from the first month?
How Should the Programme Evolve After Year One?
The programme should shrink in proportion as capital and track record grow. Each step should be justified by results and coverage, not by the original plan.
Rating agencies and regulators watch reliance on reinsurance as a start-up matures. Showing a planned, capital-led path towards higher retentions strengthens both relationships.
Spreadsheet-based treaty administration becomes a growing risk as the programme becomes more complex. Our guide to spreadsheet-dependent treaty administration explains why.
What Does the Market Look Like for 2027?
Reinsurance capacity has been abundant through 2026, which helps new entrants secure support. Reinsurers still differentiate sharply on management quality, underwriting discipline and data.
A soft market can make a start-up programme look cheap at launch. The programme should still be built to survive a firmer market at the first renewal.
Checklist for Founders, CFOs and CROs
Use this checklist before you submit your authorisation application and bind your first programme.
- The reinsurance programme is modelled into every year of the capital forecast
- SCR coverage clears risk appetite at every planned quota share step
- Quota share step-downs are tied to capital triggers, not dates
- Panel security meets the floor, with collateral for any exceptions
- Ceding commission is tested against actual acquisition and admin costs
- The submission uses the same plan as the regulatory application
- Bordereaux, premium accounting and recovery processes are tested before launch
- Treaty terms and commission rules sit in one controlled system
For the last point, a reinsurance treaty management platform holds treaty terms, commission rules, premium and settlement calculations in one place from the start.
Key Terms
Day-one programme: The reinsurance in place when a new insurer writes its first policy.
Scheme of operations: The business plan an applicant submits for authorisation, including reinsurance principles and capital forecasts under Solvency II.
Quota share: A proportional treaty that cedes a fixed percentage of every policy's premium and losses.
Stepped or sliding quota share: A quota share whose cession percentage reduces over time or with results.
Ceding commission: The amount a reinsurer pays the cedent on a proportional treaty to cover acquisition and administration costs.
SCR coverage ratio: Eligible own funds divided by the Solvency Capital Requirement.
Mobilisation: A UK route in which a new insurer is authorised with restrictions while it completes its build-out.
Collateral: Assets such as trusts, letters of credit or funds withheld that secure a reinsurer's obligations.
Sources
Frequently Asked Questions
Why do start-up insurers need reinsurance from day one?
Start-up insurers need reinsurance from day one because their capital is small relative to the risks they plan to write and they have no track record. Reinsurance limits volatility, supports the capital plan, adds underwriting credibility and helps satisfy regulators and rating agencies.
What reinsurance do regulators expect from a new insurer?
Regulators expect a new insurer to explain its reinsurance strategy in its business plan. Under Solvency II, the scheme of operations must set out guiding principles on reinsurance and three-year forecasts of capital requirements and the resources to cover them.
Is quota share reinsurance good for start-up insurers?
Quota share reinsurance is often the core of a start-up insurer's programme. A quota share shares losses and capital needs in proportion, and the ceding commission helps fund acquisition costs, but the reinsurer's margin makes it an expensive long-term source of capital.
How do rating agencies rate a start-up insurer?
Rating agencies rate a start-up insurer on the same broad criteria as established insurers but with more caution, because there is no operating track record. Strong capitalisation, a credible business plan, experienced management and a well-secured reinsurance programme carry extra weight.
What is the PRA mobilisation regime for new insurers?
The PRA mobilisation regime is an optional route in the UK that lets a new insurer be authorised with business restrictions and proportionate requirements while it completes its build-out. The applicant's mobilisation plan must show remaining items can be completed within the coming 12 months.
When should a start-up insurer reduce its quota share?
A start-up insurer should reduce its quota share only when its projected solvency coverage stays above risk appetite at the lower cession. Step-downs should be tied to capital triggers and actual results, not to calendar dates fixed in the original business plan.
What security should a start-up insurer's reinsurers have?
A start-up insurer's reinsurers should have strong financial strength ratings, because regulators and rating agencies look closely at reinsurance quality when the insurer itself is unproven. Lower-rated capacity should be accepted only with collateral that is enforceable and tracked.
What do reinsurers need to see before supporting a start-up?
Reinsurers supporting a start-up insurer need a credible business plan, experienced underwriting leadership, clear underwriting guidelines, pricing evidence, exposure data and a capital plan. Many also want alignment through retained shares or profit commission structures.
Hitul Mistry
CEO, Insurnest
An InsurTech leader with more than a decade of experience across insurance and technology, focused on solving business problems with the help of technology. Has worked with brokers, insurance carriers, and reinsurance firms across the India, UAE, and US markets.
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