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This guidance relates to Technical Standards and Standard Development Organisations to describe the typical first step in a Standard Essential Patent (SEP) journey.

• Updated: 22 July 2024

When publishing your developer contributions data, follow this guidance on how to format, label and publish the data.

• Updated: 1 September 2019

National Insurance contributions you can choose to pay when you have a gap in your National Insurance record.

• Overview

  If you do not pay National Insurance you may have gaps in your National…

• Check which National Insurance contributions you can pay

  Find out if you can pay voluntary National Insurance contributions based…

• Rates

  The rates for the 2025 to 2026 tax year are: £3.50 a week for Class 2…

• How and when to pay

  If you live in the UK, find out how to: pay Class 2 voluntary…

What the National Digital Twin Programme (NDTP) considers a digital twin and how industries, companies, and individuals can contribute.

• Updated: 12 January 2024

This guidance provides an overview of what the contribution caps for qualifying leaseholders’ non-cladding remediation are and how these will work in practice.

• Updated: 24 July 2024

Use our online service to apply to pay voluntary National Insurance contributions for periods abroad.

• Updated: 12 February 2025

How to pay your voluntary Class 3 National Insurance contributions - online, Direct Debit, bank transfer, cheque.

This page contains guidance for UK experts on how they can contribute to the United Nations’ Intergovernmental Panel on Climate Change (IPCC).

• Updated: 7 October 2025

On 18 March the Defence Secretary announced new measures to enable armed forces personnel to support public services in response to the coronavirus outbreak.

• Updated: 12 June 2020

Military personnel supported public services across the UK to assist with the response to COVID-19.

• Updated: 31 March 2022