Useful HMRC links and contact numbers

Personal Tax

How to pay HMRC – Different ways to pay your Income Tax or Capital Gains Tax
Online Services Helpdesk – Help signing up for online services or submission issues
Tel: 0300 200 3600 (+44 161 930 8445 international)
Registering for Self-Assessment – How and when you need to register to complete a tax return
Self-Assessment Helpline – General advice about Self-Assessment and completing a tax return
Tel: 0300 200 3310 (+44 161 931 9070 international)
Capital Gains Tax – Capital Gains Tax pages, with further links
Tel: 0300 200 3300
Capital Gains Tax – Losses – Capital Gains Tax pages detailing what to do if you've made a loss
Child Benefit – Child Benefit Helpline
Tel: 0300 200 3100 (+44 161 210 3086 international)
Crown Servants Abroad Helpline – For civil servants, armed forces and diplomats who are living abroad
Tel: +44 135 535 9022
High Income Child Benefit charge – Useful information and links
Income Tax allowances and reliefs – Notes on allowances and reliefs
Income Tax Rates – Tax rates for the previous, current and next tax year
National Insurance Contributions (NIC) – NIC rates for the previous, current and next tax year
Non-Resident – Income Tax and Capital Gains enquiries – Common questions answered
(you can also email HMRC directly regarding residency)
Tel: 0300 200 3300 (+44 135 535 9022 international)
Non-Resident – useful information – Examples of different residence scenarios
Partnerships – Useful information pages for partnerships and partners
Probate and Inheritance Tax Helpline – Help and advice on Probate and Inheritance Tax following a death
Tel: 0300 123 1072 (+44 300 123 1072 international)
Seafarers – Tax relief if you work on board a ship
Self-employed – Useful information pages for the self-employed
Student Loans – HMRC notes on student loans
Trusts and Deceased Estates Helpline – Deceased estate Income Tax and Capital Gains Tax queries
Tel: 0300 123 1072 (+44 300 123 1072 international)

Corporation Tax

Accounts format XBRL or PDF – What types of company or organisation can send pdf accounts
Corporation Tax rates – Rates for previous and current financial years
CT600A Director’s Loans – Loans to participators
Deadlines – Deadlines and requirements for Corporation Tax
Corporation Tax – General enquiries
Losses – Losses and Corporation Tax
Research and Development (R&D) Relief – Guidance on R&D relief