Microsoft launches Copilot for finance with accounting skills in Excel and Capital Markets and Finance plugins in Cowork

Microsoft has announced Microsoft Copilot for finance, a package of more than 25 new finance skills and partner-built plugins that spreads across Copilot in Excel, the Copilot app and Copilot Cowork, the agent that carries out multistep work on a user's behalf. The announcement, published on Microsoft's Copilot blog on October 29, 2026 by Brian Jones, who leads the Excel product group, is aimed at three groups that Microsoft treats separately: corporate accountants who run reconciliations and the month-end close, capital markets professionals who build valuation and deal models, and corporate finance teams who prepare forecasts and review packages for leadership.

The release is not a single new product with its own price tag. It is a layer of finance-specific capabilities built on top of tools Microsoft already sells, and the availability status differs from piece to piece. The finance skills in Copilot in Excel and the new Capital Markets and Finance plugins for Cowork are listed as generally available, while the new accounting capabilities, which reconcile accounts and prepare journal entries, are available only through Frontier, Microsoft's early-access program for experimental Copilot features. A plugin that brings Dynamics 365 ERP data into Copilot and a set of third-party plugins from data and software providers are described as beginning to roll out through the Microsoft plugin registry.

Microsoft also published a first usage figure from its testing. During seven days of limited availability to Insiders, more than 8,000 unique users invoked the accounting skills more than 44,000 times across more than 18,000 Copilot conversations. The figure measures early adoption among testers rather than accuracy or time saved, and Microsoft did not publish any measurement of output quality alongside it.

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WHAT MICROSOFT ANNOUNCED AND WHERE IT RUNS.

The new capabilities extend the finance skills that Microsoft introduced for Copilot in Excel on June 25, 2026. That earlier release brought a library of pre-built sample skills for tasks such as building a discounted cash flow model, closing the books, refreshing a monthly reporting model and preparing a variance analysis, together with support for custom skills written as a SKILL.md markdown file stored in OneDrive. Microsoft offered those skills to Microsoft 365 Copilot customers on Excel for the web, Windows and Mac.

The October announcement widens the scope in two directions. The first is the surface. Microsoft says Office in Copilot now embeds Excel inside the Copilot app, so a user can analyze, edit and co-author a workbook from within Chat or Cowork rather than switching to the desktop application. Cowork is positioned as the place for longer jobs that involve several steps and several documents, such as assembling a close package or drafting an investment committee memo. The second direction is context. Microsoft says Work IQ grounds Copilot in organizational knowledge such as a company's close calendar or the conversations of a deal team, so that the assistant draws on more than the single file that is open.

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Component	Where it runs	What it covers
Accounting capabilities	Copilot in Excel and Cowork	Reconciliations, journal entries, reporting against plan
Finance skills	Copilot in Excel	Pre-built and custom finance skills
Capital Markets plugin	Cowork	Investment cases, deal and valuation models
Finance plugin	Cowork	Close reviews, forecast reviews, audit evidence
Dynamics 365 ERP apps plugin	Copilot	Finance and operations data from Dynamics 365
Fabric IQ	Cowork	Governed Fabric data, Power BI reports and semantic models
Partner plugins	Copilot and Cowork	Accounting, market data, risk, investment, spend

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ACCOUNTING CAPABILITIES FOR RECONCILIATIONS AND JOURNAL ENTRIES.

The accounting capabilities target the repetitive core of the close. According to Microsoft, Copilot can help reconcile accounts and work through reconciling items, prepare journal entries covering accruals, reclassifications, allocations, reversals and recurring entries, and turn the results into performance reporting against plan. Microsoft lists audit, tax, financial planning and analysis, compliance and training as further areas covered by the release, but the announcement does not name specific skills for those areas, so their depth cannot yet be assessed from the published material.

The feature that matters most for accountants is the optional audit trail. When a user invokes an accounting capability in Excel, they can opt in to a record, kept in the chat history, of what Copilot changed in the workbook and why. Microsoft pairs this with a broader workbook history function: Copilot can summarize recent activity in a workbook, identify who made a specific change and when, explain the effect of that change, and selectively reverse individual edits without disturbing the rest of the file. For teams whose spreadsheets feed audited financial statements, the ability to trace and undo an AI-generated edit is closer to a prerequisite than a convenience, because a change that cannot be explained cannot be signed off.

Microsoft cites EY Ireland, where Strategic Reporting and Analysis Lead Cyril Mannion used the accounting skills in Copilot in Excel to streamline weekly reporting. The company did not publish figures from that deployment.

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THE CAPITAL MARKETS AND FINANCE PLUGINS IN COWORK.

The Capital Markets plugin is designed for investment banking, research and asset management workflows that combine data gathering, modeling and writing. Microsoft lists investment case preparation and acquisition thesis testing as the headline workflows, the latter including trading comparables and leveraged buyout modeling. The plugin also covers three-statement modeling, discounted cash flow valuation, merger modeling, review of confidential information memoranda, earnings notes, investment committee memos and client portfolio reviews.

The Finance plugin is aimed at corporate finance teams. Microsoft describes close review packages and forecast review briefs that carry through to leadership, along with stakeholder questions and answers, quarterly workbacks, audit evidence packages, expense itemization and dataset analysis. In the announcement, Microsoft illustrates the plugin with an internal example in which a member of Microsoft Finance runs a forecast update in Cowork, and it quotes Brad Foss, Vice President of Digital Platform Delivery at Zurich Insurance North America, on using Cowork to move from static reports to dynamic dashboards.

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Plugin	Main workflows named by Microsoft
Capital Markets	Investment cases, acquisition thesis testing, trading comparables, LBO models
Capital Markets	Three-statement models, DCF valuation, merger models, CIM review
Capital Markets	Earnings notes, investment committee memos, client portfolio reviews
Finance	Close review packages, forecast review briefs, quarterly workbacks
Finance	Stakeholder Q&A, audit evidence packages, expense itemization, dataset analysis

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The distinction between the two plugins follows the line between people who analyze other companies and people who report on their own. Both rely on Cowork's ability to run a sequence of steps across files, which is why Microsoft placed them there rather than inside Excel alone.

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CONNECTED DATA: DYNAMICS 365, FABRIC IQ AND PARTNER PLUGINS.

A finance assistant is only as useful as the data it can reach, and a large part of the announcement concerns connectors. The Dynamics 365 ERP apps plugin brings finance and operations data from Microsoft's own enterprise resource planning products into Copilot. Fabric IQ makes governed data in Microsoft Fabric usable by Copilot, starting with Power BI reports and semantic models, which is where many finance departments already keep their curated reporting layer.

The partner list is long and leans heavily on market data. Microsoft names accounting software from Intuit QuickBooks, Xero and Zoho Books; company, credit and risk data from CB Insights, D&B Finance Analytics, D&B Risk Analytics, Daloopa, Fitch Solutions, IBISWorld, Moody's and Verisk; investment and wealth tools from FactSet, Morningstar, Orion, Quartr, Reflexivity, Rogo and Samaya; market data and news from Fiscal AI, LSEG, MT Newswires, S&P Global, S&P Global Energy, Statista and Zacks; and banking and spend management from Mercury.

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Category	Partners named by Microsoft
Accounting software	Intuit QuickBooks, Xero, Zoho Books
Company, credit and risk	CB Insights, D&B, Daloopa, Fitch Solutions, IBISWorld, Moody's, Verisk
Investment and wealth	FactSet, Morningstar, Orion, Quartr, Reflexivity, Rogo, Samaya
Market data and news	Fiscal AI, LSEG, MT Newswires, S&P Global, S&P Global Energy, Statista, Zacks
Spend and banking	Mercury

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Microsoft states that these third-party services may require separate licensing, subscriptions, authentication or administrator enablement from their providers. In practice this means that the plugin being listed does not give a user access to FactSet or Moody's data: the organization still needs its own contract with the data vendor.

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AVAILABILITY, LICENSES AND WHAT FINANCE TEAMS NEED TO DO.

The status of each component determines who can use it today. Microsoft's availability breakdown is as follows.

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Capability	Status on October 29, 2026
Accounting capabilities in Copilot in Excel and Cowork	Frontier (early access)
Finance skills in Copilot in Excel	Generally available
Capital Markets and Finance plugins in Cowork	Generally available
Fabric IQ in Cowork	Generally available
Dynamics 365 ERP apps plugin	Beginning to roll out via the plugin registry
Partner plugins	Beginning to roll out via the plugin registry

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The announcement does not state a price or name a specific license for Copilot for finance. Microsoft's own documentation for the related pieces fills part of the gap. The June finance skills were offered to Microsoft 365 Copilot customers, and Microsoft's Frontier pages state that early-access features require an active Microsoft 365 Copilot license and an organization that has opted in. Frontier is not enabled by default: an administrator turns it on in the Microsoft 365 admin center, at the tenant or user level, and can control which users or groups get access. For Frontier features in Cowork, Microsoft notes that the administrator account itself must also be enrolled in Frontier. Microsoft adds that some Frontier features use usage-based billing in Copilot Credits.

For a finance department, the practical sequence follows from those rules. Teams that already have Microsoft 365 Copilot licenses can start with the generally available finance skills in Excel and the Capital Markets and Finance plugins in Cowork, subject to whatever plugin approvals their administrators require; Microsoft's Cowork documentation says administrators deploy partner plugins and manage plugin availability in the Microsoft 365 admin center under Agents and Tools. Teams that want the reconciliation and journal entry capabilities need their administrator to enroll the organization in Frontier, and should treat those features as early-access tools rather than production-grade controls. Organizations that want market or credit data inside Copilot need to confirm their existing subscriptions with each data provider before the plugins add value.

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TRUST, CONTROLS AND DATA HANDLING.

Microsoft frames the release around control as much as capability. The company says Copilot processes data within the Microsoft 365 service boundary, honors existing permissions and sensitivity labels, and does not use prompts, responses or documents to train the underlying foundation models. These are Microsoft's stated commitments; the announcement does not add new certifications or third-party audits specific to the finance features.

The company is also explicit about where responsibility sits. In Microsoft's words, "Finance professionals retain control of the recommendations, decisions, approvals, and actions that follow." That sentence has practical weight. A journal entry drafted by Copilot is still an entry that an accountant posts and a controller approves, and the optional audit trail is what lets a reviewer reconstruct how the entry was produced. Firms subject to internal control requirements will need to decide whether to make that opt-in record mandatory in their own procedures, since Microsoft presents it as optional.

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WHAT IS ESTABLISHED AND WHAT REMAINS OPEN.

The established facts are clear enough. Microsoft has added more than 25 finance skills and plugins across Excel, the Copilot app and Cowork; the Excel finance skills, the Capital Markets and Finance plugins and Fabric IQ in Cowork are generally available; the accounting capabilities for reconciliations and journal entries are in Frontier; and the Dynamics 365 and partner plugins are starting to roll out. Microsoft has disclosed an early usage figure of more than 44,000 invocations by more than 8,000 Insiders in seven days, and it has described an opt-in audit trail and selective edit reversal in Excel.

Several important points remain undisclosed. Microsoft has not published accuracy measurements for reconciliations, journal entries or valuation models, which are the numbers finance teams would most want before relying on the tools. It has not named a timeline for the accounting capabilities to leave Frontier, nor specific licensing terms or costs for the finance package beyond the general Microsoft 365 Copilot requirement and Copilot Credits for some Frontier features. The skills for audit, tax, FP&A, compliance and training are named as areas but not described in detail.

The move fits a broader pattern in which large software vendors place AI agents directly inside the business applications that companies already run, as Oracle did when it brought ChatGPT and Codex into its applications. Microsoft's advantage in finance is that Excel is already the working environment of the profession, which means the real test of Copilot for finance will be whether its output survives a controller's review and an external audit, not whether it appears in the ribbon.

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