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Field notes on cost truth, pricing and the future of costing.

What we're learning across 150 engagements, written for finance leaders, not for footnotes.

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How to Measure the ROI of a Profitability Improvement Project

A profitability improvement project is easy to approve and surprisingly hard to prove. The costs are concrete and land early: consulting fees,...

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The 4 Maturity Levels of Cost Management: Where Is Your Business?

Every business manages its costs somehow. The difference between one that grows margin deliberately and one that hopes for the best is...

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Manufacturing Margins in 2026: Why Tariff Volatility Makes Real Costing Non-Negotiable

For most manufacturers, the gross margin printed on the annual accounts is an average that hides far more than it reveals. In...

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The return you did not price

Field note · Supply chain cost The return you did not price: quality, returns and rework in high-frequency ordering. More orders mean...

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When small and frequent is right

Field note · Supply chain cost When small and frequent is right: order frequency versus opportunity cost. The previous field note argued...

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Time is money: the hidden cost of a thousand small orders

Field note · Supply chain cost Time is money: the hidden cost of a thousand small orders. Every order you place is...

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What Our TDABC Workshop Participants Learn in 8 Hours

In eight hours, a finance manager who arrives convinced their costing is “good enough” usually leaves with a list of three or...

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Strategic Costing vs. Accounting: Why One Runs the Business and the Other Files the Tax Return

Every company keeps accounts. Far fewer practise costing. The two are often confused, and the confusion is expensive: it leaves managers steering...

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How Often Should You Update Your Cost Model? A Frequency Guide by Business Type

“We built the model two years ago” is one of the phrases most likely to indicate a cost model problem. Not always...

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Logistics Companies: How to Know Which Routes Are Actually Profitable

Most logistics companies know their overall margin to the decimal point. Very few can tell you which routes earn it and which...

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IAS 2 normal capacity: stop overstating your inventory

Under IAS 2, the cost of inventory is not just materials and direct labour. It includes a systematic allocation of production overheads,...

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IFRS 18 in 2027: your management metrics now have to be defensible

IFRS 18 is effective for reporting periods beginning on or after 1 January 2027, and it replaces IAS 1. It is the...

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IFRS 8 segment profit is only as good as the cost behind it

IFRS 8 requires you to report a measure of profit or loss for each reportable operating segment, as it is reported to...

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IAS 36 impairment and inventory NRV both rest on attributed cost

Two everyday IFRS judgements depend quietly on the quality of your cost allocation: impairment testing under IAS 36, and the net realisable...

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Data Infrastructure for Cost Modeling: What You Need Before You Can Model

One of the most common barriers to implementing a proper cost model is the belief that you don’t have the data. Most...

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Why your Balanced Scorecard fails without real cost

Two of the Balanced Scorecard's four perspectives depend on real cost, which most scorecards do not have. Here is how TDABC supplies...

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The Execution Premium: strategy meets money at Stage 4

Kaplan and Norton's six-stage system has one place where strategy meets money: Stage 4, Plan Operations. Here is why it needs real...

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Kaplan’s complete system: from cost to strategy to execution

ABC/TDABC, the Balanced Scorecard, Strategy Maps and the Execution Premium are one connected system. Robert Kaplan is the thread, and cost is...

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Why Value-Based Health Care fails without TDABC

Value-Based Health Care fails when providers measure outcomes but not real costs. Here is why TDABC is the missing half of the...

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Lean saves time. TDABC tells you the profit gained.

Lean and Six Sigma find the minutes. TDABC tells you whether those minutes became profit, and where. Here is how the two...

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What Is a Capacity Cost Rate in TDABC and Why Does It Change Everything?

Ask most finance teams what something costs, and they’ll point to a rate buried in a spreadsheet. Ask where that rate came...

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How to measure the cost of a cycle of care: a 7-step TDABC guide for hospitals

A practitioner walkthrough of the 7-step TDABC method for measuring the true cost of a cycle of care, applied to one illustrative...

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Why Lean and Six Sigma succeed operationally, fail financially

Lean and Six Sigma projects often work on the floor but never reach the P&L. Three reasons why, and how TDABC closes...

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From shop floor to boardroom: profitability after a Kaizen

One Kaizen affects transactions, products, customers and channels differently. TDABC lets you watch a single improvement cascade up every level.

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From ERP to ESG - Using Your Financial Data for Sustainability Reporting

Your ERP and financial data already contain the building blocks for CSRD reporting. How TDABC turns accounting data into audit-ready ESG cost...

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How to Allocate Environmental Costs by Activity - A TDABC Approach

Step-by-step guide to allocating environmental costs (energy, waste, emissions) with TDABC. Includes a worked example for CSRD compliance.

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Capacity Utilisation in TDABC: The Metric Most Models Ignore

Most cost models tell you what things cost. TDABC tells you something more useful: how much of your capacity is actually being...

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From Gut Feel to Model: How a Hospital Group Found 18% Hidden Losses

The CFO of a mid-sized hospital group told me something I’ve heard more times than I can count: “We know roughly where...

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From Gut Feel to Model: How a Hospital Group Found 18% Hidden Losses

The CFO of a mid-sized hospital group told me something I’ve heard more times than I can count: “We know roughly where...

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From Gut Feel to Model: How a Hospital Group Found 18% Hidden Losses

The CFO of a mid-sized hospital group told me something I’ve heard more times than I can count: “We know roughly where...

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Scenario Modeling for Strategic Decisions: Use Your Cost Model Before You Commit

Every major strategic decision changes your cost structure. A new product line, a new market, a major hire, a pricing change, a...

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The Data You Need to Build a TDABC Model (And What You Can Skip)

Insights · TDABC Building a TDABC model requires five data sources: the general ledger, payroll by department, operational transaction data, capacity estimates,...

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Cost Data in Pricing Decisions: Stop Guessing, Start Knowing

Most pricing decisions are made with incomplete information. Companies know their market price, their competitor’s approximate price, and their gut feeling about...

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How Retail Chains Can Stop Losing Money on “Popular” Products

The Popularity Trap Walk into any retail chain’s head office and ask which products are performing well. You will hear the same...

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Cost Model Governance: How to Keep Your Model Accurate After Year One

Why Models Go Stale Building a cost model is the easy part. The hard part is keeping it alive. Most organisations that...

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5 Questions Every CFO Should Ask Before the Next Budget Cycle

The Budget Ritual Nobody Questions Every year, finance teams across the world repeat the same exercise: take last year’s numbers, apply an...

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Customer Profitability Analysis: Beyond Revenue, Toward True Margin Per Client

The Whale Curve in Practice In most companies, the relationship between customer rank and cumulative profitability follows what Kaplan and Cooper called...

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Why Your Best Clients May Be Your Worst - A Cost-to-Serve Analysis

Every company has a few clients they call their best. They generate the highest revenue, they’ve been around the longest, and the...

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Indirect cost allocation: the method changes the answer

What Are Indirect Costs, Exactly? Indirect costs are expenses that cannot be directly traced to a single product, client, or service - ...

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TDABC in Professional Services: How Law Firms and Consultancies Find Their Real Margins

The Billable Hour Is Not a Profitability Model Most professional services firms - law firms, management consultancies, accounting practices, engineering firms - ...

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What Finance Teams Get Wrong About Overhead Allocation

Ask any CFO how their business allocates overhead, and you’ll likely get a confident answer. Ask how accurate that allocation actually is,...

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The Hidden Cost of Complexity: Why More Products Usually Means Less Profit

Most businesses assume that a broader product or service portfolio means more revenue opportunities. Add a new SKU, launch a service variant,...

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How to Know if Your Pricing Is Killing Your Profits

Most businesses price in the dark. Here are 5 signs your pricing is eroding margins - and how TDABC gives you the...

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The Excuse Factory: 7 Barriers to Profitability (And the Truth Behind Each One)

Companies that adopt TDABC see a 3x improvement in EBIT. So why do most companies never start? The Excuse Factory never closes....

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TDABC explained: the practical guide for business leaders

If you run a business and suspect your product or service costs don’t reflect reality, you’re not alone. Most companies use traditional...

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The Whale Curve: find which clients make and destroy your profit

Imagine discovering that 20% of your clients generate 150-300% of your total profit, while 30% are actively destroying it. Sounds impossible? This...

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Cost-to-serve analysis: how to know what each client really costs

How much does it really cost to serve each of your clients? If your answer is “I don’t know” or “roughly the...

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The Future of Cost Management: Where TDABC, Software, and AI Converge

For decades, cost management has been stuck in a paradox. Every CFO wants accurate product and customer profitability data, yet most organisations...

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Cost Intelligence for Clinics: How Visibility Drives Better Profit Decisions

When clinic managers think about improving profitability, the instinct is almost always the same: grow revenue. Attract more patients, add new services,...

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New Tariffs and Cost Chaos: Why Simulation-Ready Costing Models Matter

When new tariffs are announced, the same pattern repeats in manufacturing companies around the world. Finance teams scramble to open spreadsheets. They...

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From Actuals to Simulations: Building a Strategic Costing Layer Above Your ERP

Every manufacturer with an ERP system has access to an enormous volume of cost data. Purchase orders, production orders, labour records, material...

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Transforming Dental Clinic Profitability: A TDABC Case Study

Healthcare is one of the sectors where the gap between perceived profitability and actual profitability is widest. Dental clinics are no exception....

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Profitability Is Not an 80/20 Game: Why the Pareto Rule Misleads in Cost Management

The Pareto principle is one of the most widely cited rules in business. 80% of your profit comes from 20% of your...

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Gross Margin vs. Net Profitability: Why Your Customer Profitability Numbers Are Probably Wrong

If you measure customer or product profitability based on gross margin, you are almost certainly making decisions with incomplete information. It is...

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The Top Requirements for a Successful TDABC Project: Data, People, and Methodology

Time-Driven Activity-Based Costing projects fail for predictable reasons. After working on TDABC implementations across multiple industries, the pattern is clear: success depends...

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