How do I set up or change my monthly contributions?

We need to receive the instruction to amend the direct debit 10 working days prior to the collection date (10th of the month). If the instruction is received less than 10 days to the collection date, the existing monthly contribution will be collected and your new instruction will take effect the following month.

Once you've logged in:

  • Click View Account on the account you wish to set up or make a change to an existing monthly contribution
  • Click actions (top right hand of screen)
  • Select Monthly Contributions
  • Enter the amount (£ ) you want to top up any existing investment(s) and/or click to add another investment
  • Tick the box to confirm that you've read the Key Information Documents(KID) for each investment and click Next
  • Enter your bank details or check these are correct, tick to indicate your agreement to the Declaration and click Submit to confirm

How can an investor top up?

From August 2025 we no longer provide the option to top up your investment online. 

You can submit investment and top up instructions via the following methods: 

Fax

You can fax an instruction to us on:

From the UK - 0330 123 3755

From abroad - 0044 1268 457731

Post

You can post an instruction to the address below:

Thesis Unit Trust Management

PO Box 12248

Chelmsford

CM99 2EG

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