Dealing with HMRC – guidance

Payroll technical specifications: National Insurance

National Insurance (NI) guidance for software developers working with payroll software.

Documents

NI guidance for software developers (2016 to 2017)

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NI guidance for software developers (2015 to 2016)

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NI guidance for software developers (2014 to 2015)

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Detail

Technical specifications on NI for software developers working with payroll software.