You need to add this address clearly to you list of addresses for HMRC. This address is one of 3 central mail handling distribution offices and deal with all enquieries by post.
HM Revenues & Customs,
enter here in this line the relevent department
Benton Park View,
Newcastle Upon Tyne,
NE98 1ZZ, United Kingdom
It is also the courier address for (UPS,FedEx,DHL, signed for items etc).

My father-in-law a Maltese citizen, living and working in Malta used to pay income tax in the UK on earnings made in the UK. He was the agent in Malta for an established British insurance company and the taxation department in the executor and trustee department of said company used to file his tax returns and make payments etc on his behalf from two trusts held in his name. I need to obtain his tax returns and declarations of assets from the mid-70's to 1996 when he passed away. I would appreciate the name and address of the department within HMRC which I can write to to obtain thse documents.

I have written and written and it would appear that either you cannot read or write which in turn stops you from answering any of my letters. I have on numerous occasion informed your office I am not a UK resident and I have sent proof of this more times than I care to remember but you still take it upon yourselves to totally ignore this.
If at some point you can find time to look into this matter you will see I pay income tax in Canada therefore I should be entitles to a refund of back taxes you have deducted from my pension.
It would be very much appreciated if someone could attend to this matter forthwith.

I too am really dissatisfied with HMRC services. Not only is it frustrating when you have to wait to get through to anyone on the phone line but when you do they cannot put you through to various departments but they have to try to call that department for you and then they are in a permanent queue themselves so they then apologise on behalf of the dept you need! There is no direct number for the departments nor emails either. I have been waiting more than 18 months for errors on my SARS report to be amended including one year ( amongst many erroneous annual figures ) in which a minus figure of earnings of £643 has been recorded instead of almost £10,000 despite my having provided the P60 and all wage slips for that year 2004/2005. I have been told yesterday that now an investigator has been allocated to deal with the errors including this one but it will be another 8 weeks at least before I am likely to hear anything. Additionally I received only 3 days ago a SARS report I'd requested as an update to the erroneous one sent to me August 2018 and they sent out exactly the same SARS report with no corrections made to it. I am waiting for the accurate adjustments to be made as well as an updated SARS report that Teachers Pensions require in order that I can access a pension I was due 4 years ago but can't access until this MESS is sorted. What on earth is it all coming to when HMRC can't/don't resolve matters in REASONABLE TIMEFRAMES or enable direct communication between individuals who are crying out for assistance and information very much needed so they can sort important financial affairs expediently?

Cannot find out where the amount given under 'Less untaxed income' as my untaxed income from savings is less that £1000. Want to write - this website says write to address of tax office on coding notice but no address give. Accessing my account on line has no result Where can I write to?

I sent you a letter 6 weeks ago, no reply, phoned 4 times, twice the battery on my landline phone packed up as the wait was so long, and twice you cut me off before anyone got to me, I tried a live chat that took forever and did not really solve my problem, you send new tax codes with figures of pension payments which are not the same as my bank statements, you say any problems contact us, but no address phone number etc. on how to do that. I was told in the nightmare live chat I could not do a self assessment as I do not match the criteria. So I cannot solve my query.
Very poor service by HMRC.