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Nylon for Microsoft Copilot
Cited tax and legal research, inside Copilot
Nylon for Microsoft Copilot adds Nylon’s library of New Zealand and Australian tax and law, and UK tax, to a Copilot Studio agent your firm shares in Microsoft 365 Copilot. The agent searches and reads the sources, then cites each one with a link you can check. Each colleague signs in with their own Nylon Adviser or Elite seat.
Read-only access
Your own Nylon sign-in
SOC 2 Type 2
ISO 27001
Microsoft 365 Copilot
Nylon agent
Using Nylon, when does a person become a New Zealand tax resident?
Searched Nylon’s library
Read 2 documents
A person is a New Zealand resident if they have a permanent place of abode in New Zealand, even if they also have one elsewhere [1]. They’re also resident once they’ve been present for more than 183 days in total in a 12-month period, backdated to the first of those days [2].
1
Income Tax Act 2007, s YD 1(2)
Nylon
2
Income Tax Act 2007, s YD 1(3) and (4)
Nylon
Illustrative example
Nylon for Microsoft Copilot at a glance
What it is
A Copilot Studio agent with Nylon as a read-only tool, built on the Model Context Protocol (MCP). Your firm shares it in Microsoft 365 Copilot.
What Copilot can read
New Zealand and Australian legislation, guidance and case law, and UK tax legislation, HMRC guidance and tax case law.
Who can use it
Anyone the agent is shared with who has a Nylon Adviser or Elite seat. One maker builds it in Copilot Studio.
Where it works
Microsoft 365 Copilot Chat, on every Microsoft 365 plan with Copilot Chat. Teams chat isn’t supported yet.
What you can ask the Nylon agent in Copilot
Type @ and the agent’s name, then start your question with “Using Nylon”. The agent searches Nylon’s library before it answers.
UK · VAT
“Using Nylon, when is the transfer of a business as a going concern outside the scope of VAT? Cite HMRC’s guidance.”
NZ · Look-through companies
“Using Nylon, who can be a look-through counted owner, and how many can a look-through company have?”
AU · Part IVA
“Using Nylon, how do the courts decide whether a scheme has the dominant purpose of getting a tax benefit under Part IVA? Cite the cases.”
UK · Capital gains tax
“Using Nylon, how does Business Asset Disposal Relief work, and what rate applies to disposals from 6 April 2026?”
NZ · Relationship property
“Using Nylon, when can trust assets be brought into a claim under the Property (Relationships) Act 1976? Cite the cases.”
AU · Payroll tax
“Using Nylon, when are payments to contractors subject to payroll tax in New South Wales? Cite the Payroll Tax Act 2007 (NSW) and the cases.”
How Nylon works inside Microsoft Copilot
01
You ask the Nylon agent
In Microsoft 365 Copilot Chat, type @ and the agent’s name, then ask your question.
02
Copilot searches Nylon
The agent runs keyword and meaning-based searches across Nylon’s legislation, guidance and case law.
03
Copilot reads and cites
The agent opens the documents it needs, answers from their text and links every citation to the source in Nylon.
How to add Nylon to Microsoft Copilot
Microsoft 365 Copilot can’t take an MCP URL directly. One person builds a Copilot Studio agent with Nylon as a tool, then shares it with colleagues.
For the agent maker
In Copilot Studio, create an Agent (Standard) and name it, for example Nylon Research.
Paste the instructions from the setup guide, and set generative orchestration to Yes.
Choose Tools → Add a tool → Add new MCP, name it Nylon Library and paste the URL below.
Choose OAuth 2.0 and Dynamic discovery, create a connection, sign in to Nylon and choose Allow access.
In the tool’s settings, choose End user credentials.
Publish the agent, then share it with your colleagues.
MCP server URL
https://mcp.usenylon.com/mcp
Each colleague then adds the agent in Microsoft 365 Copilot and signs in to Nylon the first time they use it.
For colleagues
In Microsoft 365 Copilot, choose Agents, find the Nylon agent and choose Add. In a new chat, type @ and its name. The first time, choose Open connection manager and connect to Nylon.
Use end-user credentials
With maker-provided credentials, everyone runs as the maker’s Nylon account, so one seat is shared across the firm. End-user credentials make each colleague sign in as themselves.
Copilot on its own vs Copilot with Nylon
Where answers come from
Its training data, your Microsoft 365 content and, if your organisation allows it, the web
Nylon’s library of legislation, guidance and case law
Citations
Can be missing, general or hard to check
Each citation links to the document in Nylon
What Copilot reads
Web results and your own files
The text of the Act, guidance or judgment itself
Who controls access
Your Microsoft 365 admin
Each person’s Nylon sign-in, and your Nylon admin can switch connections off
What’s in Nylon’s library
Nylon covers tax and law in New Zealand and Australia, and tax in the United Kingdom.
Legislation
In-force Acts and secondary legislation in New Zealand and Australia, and the core UK tax Acts and regulations.
Guidance
Inland Revenue and ATO guidance, and HMRC’s manuals and guidance.
Case law
Decisions from New Zealand and Australian courts and tribunals, and UK tax decisions involving HMRC.
Read-only, and under your firm’s control
The Nylon agent gives Copilot access to Nylon’s library, and nothing else in your Nylon account.
Read-only
Copilot can search Nylon’s library and read documents. It can’t upload, edit or delete anything.
Your own sign-in
With end-user credentials, each colleague connects with their own Nylon account. Copilot never sees their Nylon password.
Private by design
Copilot can’t see your Nylon chat history, folders or saved work, or change account, billing or team settings.
Admin control
Nylon admins can turn off Allow AI tool connections for the whole organisation. Power Platform data policies decide which connectors agents can use.
Baqir Hussein, FCCA · Founder & Director, Finex Chartered Certified Accountants
Nylon for Microsoft Copilot: frequently asked questions
More detail is in the Copilot Studio setup guide, or email support@usenylon.com.
Which Microsoft licences do I need?
The maker needs Copilot Studio access: a Copilot Studio user licence, which your Microsoft 365 admin assigns at no cost, the Copilot Studio authors role, or a Microsoft 365 Copilot licence. A trial can build and test an agent but can’t publish it. Colleagues use the agent in Copilot Chat.
Which Nylon plan do I need?
An Adviser or Elite seat for everyone who uses the agent. Starter seats don’t include the AI connector.
What can Copilot search in Nylon?
New Zealand and Australian legislation, guidance and case law, and UK tax legislation, HMRC guidance and tax case law.
How is this different from asking Copilot directly?
On its own, Copilot answers from its training data, your Microsoft 365 content and, if your organisation allows it, the web. With Nylon, the agent searches a curated library of primary sources, reads the documents and links each citation to the source so you can check it.
Can Copilot change anything in Nylon?
No. The Nylon tools are read-only. Copilot can search and read documents, but it can’t upload, edit or delete anything, or see your chat history, folders or saved work.
Why do I need a Copilot Studio agent?
Microsoft 365 Copilot can’t take an MCP server URL directly. A Copilot Studio agent holds Nylon as a tool, and one maker can share it with the whole firm.
Does it work in Microsoft Teams?
Not yet. Use the agent in Microsoft 365 Copilot Chat. Microsoft also publishes agents to Teams, but Nylon doesn’t support the Teams chat surface yet, and it may keep asking you to connect.
Does Nylon charge for Copilot use?
No, and it doesn’t use Pro credits. On the Microsoft side, agent use by people without a Microsoft 365 Copilot licence is metered in Copilot Credits through your tenant’s Copilot Studio capacity or pay-as-you-go billing.
How do I disconnect Nylon from Copilot?
The maker can remove the Nylon tool from the agent. A Nylon admin can turn off Allow AI tool connections for the whole organisation, or move a person to a Starter seat.
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Last updated 21 October 2026. Microsoft, Microsoft 365, Copilot and Copilot Studio are trademarks of the Microsoft group of companies. Nylon isn’t affiliated with or endorsed by Microsoft.