HMRC Admin 10 Response

Hi
Please refer here to when HMRC may change your tax code Why your tax code might change

Hi,
Tax due on 31st January 2025 comprises your balancing payment for 23/24, and your first Payment on Account for 24/25.
Your balancing payment for 23/24 is the tax owed on income earned between April 2023 and April 2024 - Pay As You Earn taxpayers pay this tax immediately, at the end of each month. Through Self Assessment, you have an additional 9 months to pay tax owed for 23/24.
Your first Payment on Account for 24/25 is a prediction of the tax you owe between  April 2024 and October 2024 - by requesting this by 31st of January 2025, you have an additional 3 months to pay this predicted amount, or amend your Payments on Account based on the amount you expect to owe for the year.
Filing you tax return as soon as the tax year is over is the easiest way to avoid confusion over what is owed, and for what period.
Thank you.

Hi
If you do not file a tax return by paper then please look here at how to register to send online File your Self Assessment tax return online

Hi
Please look here for when you can expect a reply Check when you can expect a reply from HMRC

Hi
Anything posted or couriered to you from another country goes through customs to check it is not banned or restricted and you pay the right tax and ‘duty’ on it.
More information is available on below link:
Tax and customs for goods sent from abroad

Hi
If you are sending goods from UK to Poland, there will be no customs charges from UK customs as this is classed as an export. You may need to check with customs in Poland to see if there will be any charges on their end.

Hi
Q1 - If the one-time bank transfer is in connection with your Self Employment then this should be converted to Sterling and then added to your Self Employment profits and included in the Self Employment pages.  
Q2 - You do not need to declare this income.  

Hi
You will need to request a letter of confirmation of residence, by completing the certificate of residence form at How to apply for a certificate of residence to claim tax relief abroad.  You will need to include the historical dates you require, but not for a future date.  We cannot issue anything for a future date, as we cannot confirm your future residence status.

Hi
Please have a look at the guidance on the UK / Singapore tax treaty.  Article 14 covers self employment and confirms that if you are in Singapore and carrying out independent services in Singapore, your self employment income is taxable there.  You should look at theri tax guidance on the purchase of assets to carry out your independent services.
Double Taxation