Educational, not advice. This article explains what a Collective Defined Contribution (CDC) pension is, how the new multi-employer CDC framework being introduced by The Pensions Regulator (TPR) will work, and what employees may eventually be offered as CDC arrangements become more widely available. It does not recommend whether to join any particular scheme. Pension Plain is not authorised or regulated by the Financial Conduct Authority.
Scope: This piece covers the CDC pension model, the difference between CDC and traditional defined benefit (DB) and defined contribution (DC) pensions, the new TPR code of practice laid before Parliament on 29 April 2026 which enables unconnected multi-employer CDC schemes, and the practical timeline for when CDC may be offered to ordinary workers. It does not cover the existing single-employer Royal Mail CDC scheme in detail, and it does not give financial advice on whether to choose CDC over DC when offered a choice.
In short
- Collective Defined Contribution (CDC) is a third type of workplace pension that sits between traditional defined benefit (DB) and defined contribution (DC).
- Like DC, the employer and employee contribute fixed amounts; like DB, the pension is paid as a regular income for life, with the investment risk shared collectively rather than borne by individuals.
- The Royal Mail Collective Pension Plan, which began in October 2024, is the only CDC scheme operating in the UK to date.
- On 29 April 2026, The Pensions Regulator laid an updated CDC code of practice before Parliament to enable “unconnected multi-employer” CDC schemes (commercial CDC providers that serve multiple unrelated employers).
- The supporting regulations come into force 31 July 2026; the code of practice itself is expected to come into force in mid-October 2026. The first multi-employer CDC schemes are expected to begin operating in early 2027.
- TPT Retirement Solutions and LifeSight (WTW’s master trust) are in early pre-authorisation discussions with TPR. None has been authorised yet.
- Most public service pension scheme members will not be directly affected. Public service schemes (NHS, LGPS, Teachers, Civil Service, AFPS, Police, Firefighters) remain defined benefit. CDC is a private sector workplace pension model.
Three pension models, briefly
To understand CDC, it helps to be clear on the two existing models.
Defined Benefit (DB)
DB pensions promise a defined pension at retirement, calculated from a formula based on your salary and length of service. The classic public service schemes (NHS, LGPS, Teachers’ Pension, Civil Service alpha, AFPS) are all DB. The employer (or, for public service schemes, the government) bears the investment risk: if returns are poor, the employer has to put in more money to deliver the promised benefit.
DB is generally the most generous pension model for employees but expensive for employers, which is why most private sector DB schemes have been closed to new members over the last 25 years.
Defined Contribution (DC)
DC pensions are the standard private sector workplace pension. The employer and employee each pay in a defined percentage of pay; that money is invested in your individual pension pot; at retirement you have a pot of money to use (drawdown, annuity, or lump sum). The employee bears the investment risk: if returns are poor, your pot is smaller.
DC is the model used by almost all auto-enrolment schemes in the private sector. It is administratively simpler for employers but transfers the investment risk and the longevity risk (running out of money in retirement) to individuals.
Collective Defined Contribution (CDC)
CDC tries to capture some of the benefits of both. The contributions are defined (like DC), but instead of each employee having a separate individual pot, all member contributions are pooled into one large collective fund. At retirement, you receive a target pension paid for life from the collective fund, with the pension level adjusted (up or down) over time depending on how the collective fund performs.
The key feature: investment risk and longevity risk are shared across the membership, not borne individually. If the fund performs well, pensions can be increased; if it performs poorly, pensions can be reduced. There is no guaranteed benefit level (unlike DB), but there is also no individual exposure to running out of money (unlike DC drawdown).
The Royal Mail single-employer CDC scheme
CDC arrived in the UK in October 2024 when the Royal Mail Collective Pension Plan launched. It is a single-employer CDC scheme: only Royal Mail employees can join it. It replaced an earlier ambition for a Royal Mail “wage in retirement” scheme and is the only operating CDC pension in the UK as of early 2026.
The Royal Mail scheme has been a useful real-world test of the CDC framework: it has demonstrated the operational mechanics, the communication challenges (explaining “your pension can go up or down” to members used to either DB certainty or individual DC pots), and the governance requirements.
What the new TPR code of practice does
The Royal Mail scheme is a “connected” CDC scheme: it serves one employer and its corporate group. The TPR code of practice laid before Parliament on 29 April 2026 extends the framework to “unconnected multi-employer” CDC schemes. That is the technical name for commercial CDC providers that serve multiple unrelated employers, similar to how commercial DC master trusts operate today.
The code sets out:
- Authorisation criteria for CDC providers (financial strength, governance, IT systems, business plan).
- Ongoing supervision requirements, including reporting, actuarial valuations, and member communications standards.
- Member protection rules covering how benefits are calculated, communicated, and adjusted.
- Wind-up provisions for what happens if a CDC scheme has to close.
- Trustee communications duty. TPR has explicitly stated that trustees must actively challenge any unclear or misleading communications about CDC benefits, with regulatory consequences for failure. This sits inside the member protection framework and is a deliberate response to the communication challenges the Royal Mail scheme exposed.
The supporting regulations (the legal hook on which the code rests) come into force on 31 July 2026. TPR expects to begin accepting authorisation applications shortly after that date. The code of practice itself is expected to come into force in mid-October 2026.
What this means in practice for workers
For most UK workers, CDC will become an option to consider rather than an immediate change to their existing pension arrangements. The realistic timeline:
- 31 July 2026: Supporting regulations come into force; TPR begins accepting authorisation applications from prospective multi-employer CDC providers.
- Mid-October 2026: CDC code of practice itself comes into force.
- Late 2026 to early 2027: First multi-employer CDC schemes are authorised. TPT Retirement Solutions and LifeSight (WTW’s master trust) are the two providers publicly known to be in pre-authorisation discussions.
- Early 2027 onwards: Employers begin to choose CDC schemes as their auto-enrolment vehicle for new staff, or as an alternative offered alongside an existing DC arrangement.
- Several years out: CDC reaches a meaningful share of UK workplace pensions, if employer take-up is strong. CDC could also remain niche, depending on how the market develops.
Public service scheme members are not affected by any of this. The NHS Pension Scheme, LGPS, Teachers’ Pension, Civil Service, AFPS, Police, and Firefighters’ Pension Schemes all remain DB. CDC is a private sector workplace pension framework.
The arguments for and against CDC
Arguments for CDC
- Pooled investment risk smooths individual outcomes. Two employees with the same career and contributions should retire on roughly the same income, unlike DC where market timing on retirement can make a substantial difference.
- Pooled longevity risk means the scheme can target a pension paid for life without each individual having to buy an annuity or run their own drawdown calculation.
- Collective investment may achieve better long-term returns than individual default funds because of scale, longer time horizons, and lower administrative cost.
- Members do not have to make complex investment decisions; the scheme runs one investment strategy for the collective fund.
Arguments against (or concerns about) CDC
- No guaranteed benefit level. Your pension can be reduced as well as increased. This is genuinely different from a DB promise.
- The collective nature means individuals lose some control. You cannot pick your own investment strategy, change risk profile through your career, or take a cash equivalent transfer value with the same freedom as a DC pot.
- Inter-generational fairness is a known design question. CDC schemes have to balance the interests of older members (already drawing pension income) and younger members (still accumulating). Poor scheme design can favour one cohort over another.
- Members in early years of a new CDC scheme may not see the smoothing benefits that come with a larger, more mature collective fund.
- Communication is hard. Explaining “your pension can go up or down based on collective fund performance” to a workforce used to either DB certainty or visible DC pot values requires careful work, and member misunderstanding could lead to dissatisfaction.
There is no right answer about whether CDC is better or worse than DC for a given individual; it depends on personal preference, career horizon, retirement plans, and how the specific scheme is designed.
If you are offered a CDC scheme
If, at some point in the future, your employer offers you a CDC scheme (either as your only auto-enrolment scheme or as an alternative to an existing DC scheme), the questions worth asking before making any decisions:
- What is the contribution structure? Employer and employee contribution rates should be clear, like in any workplace pension.
- How is the target pension calculated? CDC schemes work to a target accrual rate (often expressed as a percentage of salary per year of service).
- Under what circumstances are pensions adjusted? CDC schemes typically have rules about when in-payment pensions are increased or decreased, and by how much, based on the collective fund’s funding level.
- How does it compare to your existing DC pension on a like-for-like basis? Most DC schemes will let you compare an indicative annuity at retirement; CDC offers a different shape of income.
- What are the transfer-out rules? CDC schemes may have different rules from DC about whether you can take a cash equivalent transfer to a SIPP or another scheme.
- Has the scheme been authorised by TPR? The CDC authorisation regime is robust; an authorised scheme is one TPR has assessed against the new code of practice.
For any significant pension decision (whether to opt out of auto-enrolment, whether to choose CDC over DC, whether to transfer between schemes), regulated financial advice from an FCA-authorised adviser is the right route to a personal recommendation. Pension Plain explains the structures; it does not advise on what to do.
FAQ
Is my workplace pension going to change to CDC?
Almost certainly not in the immediate future. CDC schemes are not yet authorised to operate as multi-employer providers; the first will be authorised in late 2026 at the earliest. Even after authorisation, the decision to offer CDC sits with each employer; many employers will continue with their existing DC arrangements indefinitely.
Does CDC replace defined benefit?
No. CDC is being introduced as a third option alongside DB and DC. Where DB is still offered (mainly in the public sector and in some legacy private sector schemes), it continues as before. Where DC is offered, it continues as before. CDC is an additional option employers may eventually choose to offer.
Can I have a CDC pension as well as DC and DB?
In principle yes. There is nothing stopping a worker from having a mixture of pension types across different employers over a career. The annual allowance, lifetime considerations, and tax treatment would apply across them as for any pension portfolio.
Will the State Pension change because of CDC?
No. The State Pension is a separate, government-run pay-as-you-go scheme. Changes to workplace pension models do not affect State Pension entitlement.
What happens if a CDC scheme has to wind up?
The TPR code of practice sets out wind-up provisions. In general, the collective fund’s assets are used to secure members’ accrued benefits, typically by purchasing annuities or transferring values to another scheme. The exact outcome depends on the scheme’s funding level at the time of wind-up. The Pension Protection Fund (PPF) does not cover CDC schemes in the same way it covers DB schemes; CDC has its own safeguards.
Are CDC pensions taxed differently?
No. CDC pensions are taxed under the same income tax rules as DC and DB pensions. Contributions receive tax relief at your marginal rate; the 25% tax-free lump sum rules apply; pension income in retirement is taxable as earned income.
Pension Plain’s take
CDC is one of the more genuinely interesting structural changes in UK workplace pensions in years, but it will take a long time to mean anything for most people. Watch for the first multi-employer scheme authorisations in late 2026 and early 2027, and for big-name DC master trusts launching CDC alternatives. If your employer offers you a CDC choice, that is the moment to read carefully and, if the sum at stake is significant, get regulated advice. Until then, this is mainly a thing to know exists.
Information, not advice. This article explains the Collective Defined Contribution pension model and the new multi-employer CDC framework being introduced. It is not financial, tax, or legal advice. Pension Plain is not authorised or regulated by the Financial Conduct Authority. If you are offered a CDC pension or need a personal recommendation about your workplace pension, speak to a qualified, FCA-authorised financial adviser via the FCA register or MoneyHelper.