Every document you are using must be dated BEFORE the date you submit the online application, because that is your official application date, and you have to show that every visa requirement was met on that date.
We always recommend that you DO NOT submit the online application until you have every single document in your hands and ready to upload.
If the latest bank statement is dated after you apply online, the visa could be refused.
Understood - thank you!
On a separate point, we've been working through our mail and hoping a selection of those below will do the job. Could I please ask for any feedback / tips on if this looks okay? It's not perfect but have tried to provide a range of sources and worked with what we have.
We likely will end up applying in very late Feb / early-mid March (once we have February's payslip and depending on how long it takes Monzo to send the bank statements).
NB the joint items are all we have - thought it may be wise to include as it shows variety of sources.
February 2023: Barclays (applicant), Santander (sponsor)
October 2022: NatWest (joint)
September 2022: Barclays (applicant), Barclays (sponsor)
April 2022: Barclays (applicant), Barclays (sponsor)
March 202: Acorn estate agent (joint)
November 2021: Barclays (applicant), Barclays (sponsor)
June 2021: AmEx (sponsor)
May 2021: Barclays (applicant)
March 2021: Greenwich council (joint)
January 2021: Barclays (applicant), Barclays (sponsor)
September 2020: Barclays (applicant), Tower Hamlets council (sponsor)
August 2020: Barclays (applicant), Barclays (sponsor)