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Design, build and operate APIs in a consistent way
This webinar looks at the information an organisation makes available to clients, or potential clients, and how the consumer's expectations can be met.
Structuring, designing and publishing your API documentation
When to apply the off-payroll working rules (IR35) if you receive services from a worker through their intermediary.
This guidance is intended to achieve clarity and consistency of practice in departmental Intelligent Client (IC) roles.
How to change or remove authorisation online or by phone.
Use this service to manage your client's details for VAT, if you’re a tax agent.
Returns technical specifications for Self Assessment Online software developers.
Service providers or government departments installing networking technologies in government shared buildings, known as hub buildings.
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