Microsoft has expanded Copilot for finance teams with more than 25 new finance skills and partner-built plugins, moving beyond the Excel-focused tools it introduced in June 2026. The expansion, announced on 29 October, covers accounting, capital markets and broader corporate finance work across Copilot in Excel and Cowork, with Excel now embedded directly in the Copilot app so workbooks can be analysed and edited without leaving the chat.
What Microsoft added
Microsoft frames the update as finance work built for the way finance teams actually operate, rather than a general assistant applied to spreadsheets. The new skills sit alongside Office in Copilot, which embeds Excel in the Copilot app, and Work IQ, which grounds Copilot in organisational knowledge such as a close calendar or deal-team conversations.
The June starting point matters here. Microsoft first introduced finance skills in Copilot in Excel in June 2026, and this expansion widens both the surface and the scope: the tools now reach Cowork, the multi-step workspace where teams delegate work that spans files, models and deliverables, instead of living only inside a single workbook.
Accounting work, in Excel and Cowork
For accountants, the new capabilities focus on the repetitive work that fills a close. Copilot can compare balances and transactions, identify discrepancies and prepare reconciling items for review, and it can draft accruals, reclassifications, allocations, reversals and recurring entries, with checks for required inputs and balanced entries.
Reporting gets the same treatment. Copilot can analyse financial performance against plan, identify the key drivers behind a change, and prepare reporting that explains what changed and why, while additional capabilities span audit, tax, financial planning and analysis, compliance and training for finance teams.
Microsoft puts an early usage figure on the accounting tools. In seven days of limited Insiders availability, more than 8,000 unique users invoked accounting skills more than 44,000 times across more than 18,000 Copilot conversations, a level of trial use that suggests accountants tested the tools on live close work rather than demos alone.
Review controls are built into the Excel side. Finance professionals can start an audit trail when they invoke an accounting capability, creating a record in their chat history of what Copilot changed and why, which matters when a reviewer later has to sign off on numbers they did not produce themselves.
Capital markets and corporate finance
The Capital Markets plugin for Cowork targets banking, research, private equity and wealth management teams with end-to-end workflows. Microsoft describes a project that moves from source materials through analysis and modelling to a review-ready brief, including preparing an investment case or testing an acquisition thesis.
That work includes building trading comparables from dated sources, testing a proposed transaction in a leveraged buyout model, and keeping sourced inputs and analyst assumptions distinct for review. Further capabilities cover three-statement modelling, discounted cash flow valuation, merger modelling, confidential information memorandum review, earnings notes and investment committee memos.
A separate Finance plugin for Cowork serves corporate finance teams working across files and conversations. It can assemble a close review package by bringing together close updates, identifying blockers and risks, and drafting commentary and follow-ups, or carry a forecast review through to leadership with supporting spreadsheets and presentations.
Connected to the systems finance already uses
Finance data rarely lives in one system, and Microsoft leans on that point. The Dynamics 365 ERP apps plugin brings finance and operations data and workflows into Copilot, so accountants can prepare journal entries and supporting schedules using data directly from their system of record.
Fabric IQ adds governed Microsoft Fabric data, starting with Power BI reports and semantic models. Beyond Microsoft, partner plugins cover QuickBooks, Xero and Zoho Books, credit and risk intelligence from firms including Moody’s and Fitch Solutions, and market data from providers such as S&P Global and LSEG.
Microsoft adds a practical caveat: third-party services may require separate licensing, subscriptions, authentication or administrator enablement. Availability is staged too, with accounting capabilities in Frontier, Excel finance skills and the Cowork plugins generally available, and the Dynamics 365 and partner plugins still rolling out.
Why It Matters
For Microsoft, finance is a test of whether Copilot can move from answering questions to carrying professional workflows. Accounting and capital markets work is document-heavy, deadline-driven and audit-sensitive, so a tool that only drafts text would add little; the value here depends on reconciliations, models and review trails holding up under scrutiny.
For finance teams, the practical gain is time spent assembling work rather than deciding on it. If close packages, forecast reviews and investment cases can be drafted from connected systems with their sources intact, senior staff spend less of the cycle gathering files and more of it challenging the numbers, which is where their judgement actually earns its keep.
The risk runs the other way too. A model that prepares journal entries and valuations from many systems can spread an error faster than a manual process, and an audit trail only helps if reviewers read it. Microsoft says Copilot honours permissions and sensitivity labels and does not train on prompts or documents, but final decisions rest with professionals.
The timing also fits a wider Copilot push into enterprise work. Microsoft has been opening the orchestration layer behind its agents to outside builders, so finance skills arrive as part of a broader move to make Copilot the place where multi-step office work happens, not just a chat window beside it.
Adoption will be the real test. Copilot’s enterprise daily users rose fivefold in an earlier report, but finance teams are among the most cautious adopters in any company, and a 25-skill launch only becomes a habit if the first close it touches goes smoothly.
Background
Microsoft announced the finance expansion on its Copilot blog on 29 October 2026, building on the finance skills in Copilot in Excel it introduced in June. Early customer examples cited by Microsoft include EY Ireland, which tested accounting skills on weekly reporting, and Zurich Insurance North America, which used Cowork dashboards for expense and vendor-spend reporting.
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