Editorials & Media
Writing shared as-is, use freely. Notes on the work, not marketing.
2026 · Field notes
A ranked reference of thirty role-based thinking lenses for working with AI: what each one is good at, where it fails, and which ones cluster for real work. A worked example plus the method for building your own.
Fransua van der Westhuizen
2026 · Posts
Posts on working with Claude, Excel and finance. Each opens full size or as a PDF.
The course on one page: the order of operations, the workbook as the product, the brand sheet, the brief, the audit pass and the monthly rhythm.
Build the workbook in Cowork, then finish it in Excel with Claude for Excel, for businesses that share their files on OneDrive.
The questions the Visual Explainer asks before it builds, and a real run on how an LLM works.
Where the research says finance teams get stuck, and four things that worked in my own work, from asking well to starting with one task. The PDF has the detail.
Six habits I wish I had on my first day with Claude, each one learnt by redoing work Claude had handed me. The PDF explains each one.
Three levels of AI use in South African finance teams, from asking AI and pasting the answer to supervising automated workflows, and what holds each level back.
Three prompts, a dashboard, and every figure reperformed from the inputs and reconciled back to the workings. Three pages: the cover, the Dashboard tab and the WACC tab.
News in context
Curated July 2026: current reporting on tax, ERP and AI in finance, each with the reason it matters to an owner.
Budget 2026 and Vat: The quiet revenue lever Sars is pulling
VAT enforcement is tightening while registration thresholds stand still. If SARS attention lands on your business, the tax work sits on the services page.
Changes for Filing Season 2026
Filing season opened on 1 July, and auto-assessments now reach provisional taxpayers. Worth checking yours before the deadline checks you. Personal and company tax covers it.
SAPinsider Research: 5 Hard Truths About the 2026 SAP ERP Migration Landscape
AI has overtaken the 2027 maintenance deadline as the reason businesses replace their ERP. Moving early keeps the choice yours. The systems work covers it.
SAP Announced Final Transition Period for Compatibility Packs for SAP S/4HANA On Premise
Classic ERP functionality got its final extension, to 31 May 2026. If your system leans on compatibility packs, the clock has run. The systems work covers it.
Agentic AI is handling more finance work, but can CFOs trust it?
Finance teams report AI doing more of the work, and 86 percent have caught it inventing data. The judgment has to stay human. That is how Private AI is built here.
Enterprise AI Hits the Wall: Research Reveals Growing Privacy and Sovereignty Barriers
95 percent of large firms say privacy and sovereignty now constrain their AI plans. Owning the system inside your walls answers that; see Private AI.
