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How do you report your capital gains? What return do you use?

There are different ways that you either can or must report your capital gains depending on whether you are resident, or non-resident and whether you are in or out of Self Assessment.

At a glance

For individuals only: disposals before 6 April 2020

Are you UK resident? No = Gains on UK property reportable on NRCGT returns within 30 days. Tax payable within 30 days if not in Self-Assessment.
Yes  ↓
Do your total capital gains exceed the Annual Exemption?

       Yes        

  ↓ No
Do your total proceeds on capital disposals exceed four times the Annual Exemption?

  Yes

  ↓ No
  Gain is not reportable.
 
Are you already in Self-Assessment? Yes = Can report using real time service but must report on tax return still. Tax due 31 January following end of tax year.
No  ↓
Either report using real time service or register for Self-Assessment. Tax due 31 January following end of tax year.

 

 For individuals only: disposals on or after 6 April 2020

 

Are you UK resident? No = Gains on UK property reportable online within 30 days. Tax payable within 30 days in all cases. NRCGT return only used for indirect disposals and disposals of mixed use properties.
Yes  ↓
Do your total capital gains exceed the Annual Exemption?

       Yes    

  ↓ No
Do your total proceeds on capital disposals exceed four times the Annual Exemption?

  Yes

  ↓ No
  Gain is not reportable. 
 
Are you selling a residential property? Yes = Must report gains online and pay the tax within 30 days of completion. If you are in self assessment must also include on self assessment return. If not only the 30 day return is required.
No  ↓
Are you already in Self-Assessment? Yes = Can report using real time service but must report on tax return still. Tax due 31 January following end of tax year.
No  ↓
Either report using real time service or register for Self-Assessment. Tax due 31 January following end of tax year.

 

Overview

UK resident

Reporting requirement on disposals before 6 April 2020

Real time CGT reporting: Currently outside Self-Assessment

Real time CGT reporting: Already in Self-Assessment

Reporting requirement on disposals on or after 6 April 2020

Non-UK resident

For disposals before 6 April 2020:

For disposals on or after 6 April 2020: 

Links

SRT: Statutory Residence Test Toolkit

Non-resident CGT: UK residential property

External links

Government Gateway for real time reporting

Non-resident CGT return