HMRC Admin 19 Response

Hi,
As we would need to access your record to review this you will need to contact our Self Assessment team for advice.
Self Assessment: general enquiries
Thank you.

Hi,
You do not need to provide any evidence when reducing your payments on account. Confirmation that you were correct to do so comes when you submit your return for the year in which the payments on account were due, and your overall tax liability is calculated. You can see guidance here:
Understand your Self Assessment tax bill
Thank you.

Hi,
This will be foreign dividends. You would need to check with the provider to ascertain if foreign tax has been deducted.
Thank you.

Hi,
You can only claim expenses that are wholly, necessarily and exclusively incurred in the performance of your duties and as such, the costs you refer to are not allowable. You can see guidance here: 
Expenses if you're self-employed
Thank you.

Hi,
The residence test will take preference, but you can then claim relevant relief under the double taxation agreement agreement if appicable.
Thank you.

Hi,
You would use the first date.
Thank you.

Hi,
You are correct in your understanding, As long as a valid tenancy agreement is created outlining the monthly rent figure to yourself for renting out the room within your property, there is no requirement for a Self Assessment tax return to be completed unless the income exceeds the £7,500 income figure.
Thank you.

Hi,
You can see guidance here:
Claim capital allowances
Thank you.

Hi,
The systems are not linked so it will not show on your Self Assessment account. You need to log back into your capital gains account to see it.
Thank you.

Hi,
You need to tailor your return to state you receive a pension. This then opens other boxes so that you can show that it is a private pension and not the State Pension.
Thank yuo.