2026

120 articles

Weekly AI Roundup

Weekly AI Roundup for Accountants: Bill Gates says accounting is next. Our own journals agree.

Bill Gates says AI will cross the reliability threshold for accounting "in the next few years," and the same week the Journal of Accountancy printed an Excel agent reconciling 59,157 general ledger rows in about 10 minutes while Accounting Today tallied Big Four reports with invented citations. Meta and OpenAI both shipped personal agents that can send a client's invoice, and Microsoft moved more of Copilot onto a meter. The work is getting closer to the threshold, and the sign-off you can audit hasn't caught up.

Peter McCarrollOctober 5, 2026

Weekly AI Roundup

Weekly AI Roundup for Accountants: The parts got cheaper. The subscription still went up.

Anthropic and OpenAI cut flagship prices on the same Tuesday, and the "40% cheaper" model finished sixth on an independent tax benchmark at the highest cost per answer. The same day, a tax-software founder open-sourced a full 1040 engine and called it "deflationary with respect to service fees and license fees." FreshBooks' new Claude connector reaches every business on the login, which for a tax-only practice is the interesting part. The parts of the work got cheaper this week. Your subscription still goes up October 1.

Peter McCarrollSeptember 28, 2026

Weekly AI Roundup

Weekly AI Roundup for Accountants: The close just became a loss leader

Intuit's agent will run the month-end close from your firm's own SOPs, at no charge until January. Mercury put a general ledger inside the bank account, free through December, with unlimited free seats for the accountant. Claude's close stopped requiring QuickBooks, and a new model prices a yes-or-no decision at a fraction of a cent. The close was offered three times this week with no price of its own, and what the platforms want in exchange is your playbook.

Peter McCarrollSeptember 21, 2026

The Advisory Edge

Should accounting firms train their own AI model? Buy vs. build, part 5

Thomson Reuters spent $40 million putting its archive inside its own AI model, and the final training run cost under $450,000 because it built on a model anyone can download. Part 5 of Buy vs. build closes the series with what that means for a 12-person practice: the knowledge Thomson Reuters put inside a model, your firm puts on top of one, in a page of written-down rules. Two moves, one engagement, this month.

Peter McCarrollSeptember 18, 2026

The Advisory Edge

Can AI replace your accountant? Seven years of outrage and the invoice hasn't changed

A Xero-affiliated Instagram ad told 77,000 followers that Claude had replaced an £800-a-month accountant, and the profession decided Xero was going the way of Intuit. The vendors going direct is arithmetic, and the profession has been outraged about that arithmetic since QuickBooks Live in 2019. Seven years later, the invoice still describes the work as a report.

Peter McCarrollSeptember 18, 2026

Weekly AI Roundup

Weekly AI Roundup for Accountants: Nobody said hours

An Instagram ad with a Xero discount code told 77,000 followers that Claude had replaced an £800-a-month accountant, and Xero apologised twice without saying it couldn't be done. The same week the AICPA said a CPA's fee has to price in the liability, Intuit's CFO called human accountability the thing AI can't take from tax and said Intuit sold it for $150, and BILL's CEO said if his software saves you work, you should pay him for it. Nobody said hours.

Peter McCarrollSeptember 14, 2026

Weekly AI Roundup

Weekly AI Roundup for Accountants: The $60 ledger is changing hands

Puzzle, the $60 AI-native ledger we priced against QuickBooks two weeks ago, is selling its firm-facing business to Accrual and will stop marketing software directly to CPA firms. Also this week: OpenAI launched GPT-6 with a financial-statement tie-out as its lead customer story, Docusign is opening its connector to every AI agent on September 30, and a services firm priced an agent-led assurance engagement 30 to 50% below its own rate card.

Peter McCarrollSeptember 7, 2026

Building AI Workflows

Right answer, wrong data: the AI review procedure your accounting firm needs

An AI agent was asked to attach a spreadsheet to an email. It couldn't reach the folder, so it found a file with the same name in an old email, attached that, and reported the job done. In a CAS practice the same failure looks like a flawless margin analysis built on the pre-adjustment trial balance, and none of the checks your team was trained to run will catch it.

Peter McCarrollSeptember 4, 2026

The Advisory Edge

Build vs buy your accounting AI stack: part 4, the market answered

BILL is repricing AI-agent work from seats to consumption, Xero says one in five ecosystem connections is now a custom-built app, and frontier model prices dropped again. Part 4 of Buy vs. build re-runs the series' five-layer framework against a month of on-the-record evidence, and the question has moved: not whether firms will build, but what's bounded enough to own.

Peter McCarrollSeptember 2, 2026

Weekly AI Roundup

Weekly AI Roundup for Accountants: Intuit blinked on price

Intuit told shareholders it will deliberately earn less per DIY tax customer next year rather than keep losing them to cheaper software. That decision, plus a free QuickBooks tier with no accountant seat, is the clearest signal yet of what happens to the price-sensitive end of a professional services market. Also this week: Singapore started training half its accountancy profession, agents learned to log into websites, and OpenAI published a postmortem showing its monitoring system was switched off while 1,200 agents broke into someone else's servers.

Peter McCarrollAugust 31, 2026

Weekly AI Roundup

Weekly AI Roundup for Accountants: What I saw at Xerocon Denver

I spent last week on the floor at Xerocon Denver, and I watched two movements happen at once: the platforms assembling and repricing the whole stack from above, and the firms quietly building their own software from below. Add BILL's pivot from seats to consumption pricing and OpenAI's answer to the client-data question, and the week's message is clear: the gap between falling AI prices and rising platform prices is where your next margin decision lives.

Peter McCarrollAugust 24, 2026

Leading AI Adoption

Your AI disclosure position just got decided for you

In four weeks, AI disclosure went from ethics debate to infrastructure: Substack scans it, LinkedIn flags it, the EU legislates it, and Anthropic watermarks everything Claude writes. Your firm almost certainly faces no legal risk, but your work product now carries flags you can't remove. The only question left is whether the story that arrives with the flag is one you wrote.

Peter McCarrollAugust 21, 2026