HMRC Admin 21 Response

Hi Muk LO,
You can amend the error by logging back into your return via your Personal Tax Account, and updating it with the correct information. The amount paid should then show as a credit on your account, which you can then claim as a refund.
Thank you.

Hi KM Chung,
Once received, it can take up to 25 days for your return to be fully processed and present on your record. If 25 days have passed and you return is still not present on your record, please contact us by webchat or phone via:
Self Assessment: general enquiries
Thank you.

Hi Tony So,
I am sorry you have not received the SA100 you requested yet. It may take longer for you to receive the requested forms overseas, but if you would like to request them again, contact us by webchat via:
Self Assessment: general enquiries, or, by calling  +44 161 931 9070. 
Thank you.

Hi Chantel,
To allow us to give you the best advice here, contact our employer's helpline by webchat or phone, via: 
Employers: general enquiries.
Thank you.

Hi opsa519,
To confirm the address we have for you on your record, and update that address if necessary, contact us by webchat or phone via:
Self Assessment: general enquiries.
Thank you.

Hi levi,
In this case as unable to update online or by calling or webchat you will need to submit a letter to HMRC confirming your details to update your record and then allow you to access your account.
The address to write to is:
HMRC, Self Assessment & PAYE,
BX9 1AS
UK
Thank you.

Hi Curt,
If you complete a Self Assessment tax return you will not receive a P800 as this is only issued if your records are reviewed through your PAYE records. If your Self Assessment calculation shows you have overpaid then once you sumbit your tax return it will then update and any credit will then be shown as available for repayment. 
Thank you.

Hi patrickypc,
If your only income is from savings then unless the untaxed interest is greater than £10,000 you would not need to register for Self Assessment:
Check if you need to send a Self Assessment tax return.
If you do need to register and still not received your UTR then you will need to contact HMRC to review:
Self Assessment: general enquiries.
Thank you.

Hi CMH,
As the recipient of the marriage allowance transfer you do not need to enter anything on your Self Assessment. Once you submit your Self Assessment tax return our system will pick up the transfer and your calculation will then be updated.
Thank you.

Hi opsa519,
As over 2 months since your original submission the UTR should have been set up. In this case you would need to re-submit the Self Assessment registration: Register for Self Assessment if you are not self-employed.
Thank you.