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How to get urgent authorisation to speak to HMRC about someone else's tax credits if you are an intermediary organisation.
Check the availability and any issues affecting the Check a UK VAT number online service.
Get help if you’re a tax agent or adviser who has clients with capital or revenue expenditure to declare on Self Assessment and Company Tax Returns.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Find out whether you need to report to HMRC under the Cryptoasset Reporting Framework (CARF).
A quick guide to spotting the signs of tax avoidance schemes, part of HMRC's 'Don't get caught out' campaign.
Find out about Document Submission Protocol if you're a software developer.
Find out the rules on disclosing arrangements and transactions that provide a VAT advantage.
Find out how to report foreign tax credit relief and complete your return if you're an employer.
This factsheet tells you about HMRC's examination of your electronic records as part of their compliance check.
iXBRL samples for Corporation Tax Online software developers.
A bi-monthly magazine for employers and agents that gives up-to-date information on payroll topics.
This notice explains what records you need to keep if you are a trader in goods or services that have to pay Excise Duty (revenue trader).
Find out how a non-UK resident company trading in the UK through a dependent agent permanent establishment (DAPE) would register for Corporation Tax.
Get help if you’re a tax agent or adviser who has clients who must complete form IHT400 for Inheritance Tax on their tax returns.
Find out about Guidelines for Compliance and the approaches you can take to lower the risk of tax non-compliance and reduce the likelihood of checks.
Tax treaties and related documents between the UK and Monaco.
Check which flights to treat as connected for Air Passenger Duty Returns and payments.
Guidance for insolvency practitioners to help their clients restructure their company’s finances using a debt restructuring scheme or plan.
Charities repayments claims technical specifications for software developers.
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