P85 for past years

Hi, I moved to Canada in March 2023. I submitted self-assessment for the tax year ending 5th April 2023. After that point, I was self-employed under contract to a UK-based company from April 2023 to April 2024 and now I'm due to be employed by the company on their payroll, so only now submitting my P85. Tax year 2023-2024: I have paid income tax as self-employed in Canada for their tax year ending in December 2023. So for tax year 2023 to 2024, should I submit a self-assessment tax return with my receipt of paid Canadian taxes along with other income, interest. Then claim back the income outside employment with the form found here: www.gov.uk/tax-uk-income-live-abroad/taxed-twice to then pay that in the Canadian tax year of 2024? Tax year 2024-2025 and beyond: My understanding now being on the payroll is that I should fill out P85 and receive the full income into my Canadian bank account and then file Canadian taxes. Is that correct? The P85 requires a P45, is this required if I was not a PAYE employee for last tax year? I can provide one for year 2022-2023. Thanks, Patrick

Hi patrick,
If submitting the return, you will need to show the Canadian tax on the foreign section of the return in order to claim foreign tax credit relief. as now under PAYE, the P85 will allow a NT (not tax) code to be issued.
Thank you.