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For Accounting Firms & Service Providers

Tax Resources

Important Personal UK-US Filing Dates

UK
US
Client Deadline

January

15th
US fourth quarter payment due
31st
UK tax return & payments due
31st
W2 & 1099 
INT arriving

February

7th
Making Tax Digital Quarter One Deadline
15th
US Broker 1099s due

March

15th
3520A due for non-US trusts & SIPPs
15th
DY USA deadline to receive documents for US April deadline

April

6th
Start new tax year
15th
US returns & extension payments due if living in US

May

7th
Making Tax Digital Quarter Two Deadline

June

15th
US tax return due if living outside of US

July

31st
Second UK tax payment due

August

7th
Making Tax Digital Quarter Three 
Deadline

September

15th
Third estimated payment due
15th
3520A return due
15th
DY USA deadline to receive documents for US October deadline

October

5th
Registration for self-assessment closes
15th
US tax filing deadline
31st
Paper filed UK personal returns must be filed by all UK tax residents, no extensions are available

November

7th
Making Tax Digital Quarter Four Deadline
15th
DY USA deadline for UK January deadline

December

15th
Exceptional US extension deadline for US citizens living outside the US
31st
Tax UK payments due for US Foreign Tax Credits purposes

September

15th
Third estimated payment due
15th
3520A return due
15th
DY USA deadline to receive documents for US October deadline

October

5th
Registration for self-assessment closes
15th
US tax filing deadline
31st
Paper filed UK personal returns must be filed by all UK tax residents, no extensions are available

November

7th
Making Tax Digital Quarter Four Deadline
15th
DY USA deadline for UK January deadline

December

15th
Exceptional US extension deadline for US citizens living outside the US
31st
Tax UK payments due for US Foreign Tax Credits purposes

January

15th
US fourth quarter payment due
31st
UK tax return & payments due
31st
W2 & 1099 
INT arriving

February

7th
Making Tax Digital Quarter One Deadline
15th
US Broker 1099s due

March

15th
3520A due for non-US trusts & SIPPs
15th
DY USA deadline to receive documents for US April deadline

April

6th
Start new tax year
15th
US returns & extension payments due if living in US

May

7th
Making Tax Digital Quarter Two Deadline

June

15th
US tax return due if living outside of US

July

31st
Second UK tax payment due

August

7th
Making Tax Digital Quarter Three 
Deadline