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Find out technical specifications if you're a Pension Schemes Online software developer.
'Associate scheme administrator' specifications for Pension Schemes Online software developers.
Event report XML schema, validation rules and error messages for Pension Schemes Online software developers.
'Change scheme administrator practitioner details' specifications for Pension Schemes Online software developers.
Event report xml schema, validation rules and error messages for Pension Schemes Online software developers.
Guidance for Stamp Tax Online software developers on Government Gateway, HMRCIRmark and stamps taxes.
Advice for companies and organisations to help manage the transition to filing online and using iXBRL.
Minutes of the Self Assessment software developers forum.
Guidance on identical returns for Self Assessment Online software developers.
Updated information on the avoidance measure announced in the Autumn Statement 2013.
This publication is about the reciprocal preferential trade agreement between the EU and South Korea which entered into force on 1 July 2011.
Use this factsheet if you provide childcare for parents claiming help through tax credits.
This factsheet contains information about VAT dishonest conduct penalties.
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