Nucleus platform
tax year end hub


The new Nucleus platform - a new era for you and your clients
Welcome to our new Nucleus platform tax year end page, designed to make tax year end as straight-forward as possible. We remain committed to supporting advisers and the platform is built on market leading technology, based on your feedback and with your needs in mind.
If you have clients with products that didn't upgrade in February 2026, you can still access our James Hay tax year end hub.
With our new platform it's easier for clients to consolidate their investments in one place. Some key benefits of the new platform:
- You no longer need to hold a pension product to open another product, so clients can now transfer in any existing ISA products or open a new ISA to make the most of this year’s allowances.
- We now offer a wider range of products including a Flexible ISA, Junior SIPP and Junior ISA. A wider range of products to cater for your clients’ needs.
- New and existing ISAs are now flexible, meaning funds can be withdrawn and replaced within the same tax year without it affecting subscriptions.
- By consolidating assets clients will only need to pay one platform charge. Additionally, they’ll benefit from a reduced platform fee due to our tiered charging structure (find out our costs and charges).
We hope you find these resources easy to use but if you have any queries, please contact your Business Development Manager.
Nucleus platform key dates and deadlines
We've outlined the key dates you’ll need to be aware of for the new Nucleus Platform as we approach the 2025-26 tax year end. These dates are designed to help make sure your instructions are processed on time before the end of the tax year.
To avoid any delays, please make sure we receive your instructions with all required information, completed before the dates shown below. If your request involves selling investments, please make sure sufficient funds are available for all payments including PCLS, UFPLS, income and fees. Moving the funds into cash first will help everything progress more quickly.

SIPP / JSIPP
New phased drawdown (if disinvestment required)
- To ensure payment is made within the 2025-26 tax year, all required documentation must be fully completed and returned no later than 5pm on 9 March 2026.
- This deadline allows sufficient time for all necessary calculations to be completed.
One-off PCLS (if disinvestment required)
- To ensure payment is made within the 2025-26 tax year, all required documentation must be fully completed and returned no later than 5pm on 9 March 2026.
- This deadline allows sufficient time for all necessary calculations to be completed.
Regular income payments (where cash available)
- This is the final date a requested change of income can be made, or a new regular income request set-up, for income to be received in the 2025-26 tax year.
- To make sure income is paid within the 2025-26 tax year, we need to receive your funds by 31 March.
New business application (with new Direct Debit request)
- New Direct Debit instructions require a minimum of eight business days before your first payment can be collected.
New Direct Debit set-up
- New Direct Debit instructions require a minimum of eight business days before your first payment can be collected.
New business application
- This is the final date an application can be submitted for a product to be opened within the 2025-26 tax year.
- Any applications received after this date will be processed in the 2026-27 tax year.
- This deadline doesn’t allow time for the set-up of a new Direct Debit. See 'New Direct Debit set-up' section.
One-off income payments (where cash available)
- This is the final date a one-off payment can be requested for income to be received in the 2025-26 tax year.
- You will not be given the option to select a date when submitting a one-off income payment. The payment will be taken automatically when the funds are available.
One-off PCLS (where cash available)
- To ensure payment is made within the 2025-26 tax year, all required documentation must be fully completed and returned no later than 5pm on 9 March 2026.
- This deadline allows sufficient time for all necessary calculations to be completed.
Benefits – UFPLS
- To ensure payment is made within the 2025-26 tax year, all required documentation must be fully completed and returned to us by this date.
- This deadline allows sufficient time for all necessary calculations to be completed. In the case of UFPLS payments, adequate funds must be held in cash before it can be submitted online.
New phased drawdown (where cash available)
- To ensure payment is made within the 2025-26 tax year, all required documentation must be fully completed and returned no later than 5pm on 9 March 2026.
- This deadline allows sufficient time for all necessary calculations to be completed.
Single contributions (bank transfer only)
- This is the final date for single contributions within the 2025-26 tax year.
- Any contributions received after this date will be applied to the 2026-27 tax year and can’t be backdated to the previous tax year.
- The application must be fully submitted and all required documentation received by this date, as well as the funds.
Regular contribution collection date
- This is the final collection date for regular contributions for the 2025-26 tax year.
- Any regular contributions received after this date will be applied to the 2026-27 tax year and can’t be backdated to the previous tax year.
- This deadline doesn’t allow time for the set-up of a new Direct Debit. See 'New Direct Debit set-up' section.
ISA / JISA / GIA
New business application (with new Direct Debit request)
- This date allows us time to set up your Direct Debit instruction.
- New Direct Debit instructions require a minimum of eight business days before your first payment can be collected.
New Direct Debit set-up
- New Direct Debit instructions require a minimum of eight business days before your first payment can be collected.
Bed and ISA
- This is the final date for us to receive your completed Bed and ISA online instruction to be applied in the 2025-26 tax year.
- Any instructions received after this date will be processed in the 2026-27 tax year.
New business application
- This is the final date an application can be submitted for a product to be opened within the 2025-26 tax year.
- Any applications received after this date will be processed in the 2026-27 tax year.
- This deadline doesn’t account for the set-up of a new Direct Debit. See 'New Direct Debit set-up' section.
ISA and JISA subscriptions (bank transfer only)
- This is the final date for ISA and JISA subscriptions to be received in the 2025-26 tax year.
- Any subscriptions received after this date will be applied to the 2026-27 tax year and can’t be backdated to the previous tax year.
- We will need both your completed online application and funds by this date.
GIA (money in and withdrawals)
- This is the final date for money to be received and applied in the 2025-26 tax year.
- Any contributions received after this date will be applied to the 2026-27 tax year and can’t be backdated to the previous tax year.
- We will need both your completed online application and funds by this date.
Offshore Bond
Completed assignments and subsequent segment surrenders*
Completed assignments and subsequent withdrawals across all segments*
Segment surrenders*
New business application
- New business applications must be fully completed and cleared funds need to be received at RL360’s office in the Isle of Man by this date to be processed in the 2025-26 tax year.
- Any applications received after this may not be issued until the 2026-27 tax year.
Completed withdrawals across all segments*
Assignments*
* We require all forms and any supporting evidence to be received by this date for the request to be processed within the 2025-26 tax year. Cash must also be available in the product bank account for the request to processed in time.
Handy guides for key tax year end processes
One of the many benefits of our new platform is you no longer need to hold a pension to open a new product.
As well as topping up in the usual way to use allowances before tax year end, now's the time to encourage clients to consolidate investments through Bed and ISA or opening an ISA or JISA.
Our step-by-step guides walk you through these key processes.

Further support
Should you need additional support, our support hub provides further information about products and investments, as well as over 70 guides and tutorials covering our complete range of processes.


New platform training webinars
Our live training webinars cover key topics and will give you the practical knowledge you need to learn how to use the new Nucleus platform with confidence.
With webinars available daily, and limited to 30 people per session you get personalised support in a focused, collaborative environment. We're also holding a live daily Q&A session for advisers, giving you the opportunity to ask questions that you may have about using the platform specific to your business.
Supporting documents
Our new platform is designed to be intuitive, efficient, and easy to navigate. One of the key benefits is straight through processing, removing the need to download an application to be signed by your client.
You’ll find most of our declaration forms on the platform once you log-in, for everything else please visit our literature library.


Help with your tax year end communications
Do you have clients with remaining allowances? Our sample letters can help you contact clients and encourage them to take advantage before it’s too late. Simply populate with your company and client information and contact them in your usual way.
We're here to help
We hope you find our tax year end hub useful. If you've further questions, please don't hesitate to contact your Business Development Manager.
Send us a secure message via the Nucleus platform
Email us at ask@nucleusfinancial.com
Call us on
03455 212 414
