Spend Under Management: What It Is and How to Calculate It
Spend under management is the share of a company's sourceable spend that runs through approved suppliers, contracts, and controls. You calculate it by dividing managed spend by total spend, after excluding items such as taxes and salaries, and multiplying by 100.
Card spend belongs in that calculation. The purchasing card system is one of the main data sources for the metric, and card purchases count as managed when the program's controls and supplier terms meet your definition of managed.
Key Takeaways
Spend under management equals managed spend divided by total sourceable spend, times 100.
Total spend excludes items that can't be sourced, such as taxes, salaries, and charitable contributions.
The metric isn't the same as savings. A high percentage shows control, not how much money was saved.
Card spend belongs in the denominator and counts as managed when the program has real controls.
No reliable benchmark exists for a target percentage. Set a baseline and raise it category by category.
What is spend under management?
Spend under management measures how much of what a company buys is actively sourced or managed, meaning it goes through suppliers, prices, and controls the company has chosen. The rest is unmanaged spend, bought wherever and however the requester decided.
The clearest published definition comes from AHRMM, the Association for Health Care Resource & Materials Management. Its spend under management KPI sheet defines the metric as spend actively sourced or managed by supply chain, divided by total spend minus exclusions. It was written for hospitals, but the method works for any company.
Spend under management is one output of a broader spend analysis, the process of collecting, cleaning, and classifying purchasing data. You need that clean data before the percentage means anything. It also sits inside the larger discipline of spend management, which covers controlling and paying for spending going forward.
What is addressable spend?
Addressable spend is the portion of total spend that a company could realistically source or manage. AHRMM describes total spend in the formula as "sourceable" spend, which includes spend that hasn't been sourced yet.
That distinction keeps the denominator honest. Taxes, payroll, and charitable gifts aren't purchases you can negotiate or route through a supplier program, so they come out. What's left is the spend where management is possible, whether or not it's happening yet.
How do you decide what counts as managed?
Decide what counts as managed by writing a short rule and applying it the same way every period. Most companies count spend as managed when it meets at least one of these conditions:
It's bought from a supplier under a current contract, at the contracted price
It's bought through a catalog or approved-supplier list
It's bought on a card program with merchant, amount, and policy controls
It went through a competitive quote or sourcing event in the past year
Keep the rule simple enough that an analyst can apply it to a transaction without a meeting. A rule that needs judgment on every line will drift as different people apply it.
Is spend under management the same as savings?
No. AHRMM states plainly that spend under management "is not equal to identified or realized savings." A company can manage most of its spend and still overpay if the contracts are weak.
Think of the metric as a measure of coverage. It tells you how much spend you have a handle on. Savings measures tell you what that handle is worth.
How do you calculate spend under management?
Calculate spend under management with one formula:
Spend under management % = managed spend ÷ (total spend − exclusions) × 100
AHRMM's own example uses $600 million managed out of $1 billion total, for 60%. That's an illustration of the math, not a benchmark to aim for.
The include and exclude lists matter more than the formula. AHRMM's version looks like this:
Include in total spend | Exclude from total spend |
Direct materials and services | Taxes |
Indirect materials and services | Salaries and bonuses |
Purchased services | Charitable contributions |
Dividends, securities, and interest payments | |
Stock repurchases | |
Organizational memberships |
Here's an illustrative example with round, hypothetical numbers. A company has $50 million in annual third-party payments. Taxes, memberships, and charitable gifts total $5 million, leaving $45 million of sourceable spend. Spend through contracted suppliers, catalogs, and controlled card programs totals $28.8 million. Spend under management is $28.8 million divided by $45 million, or 64%.
Where does the data come from?
The data comes from every system that pays third parties. AHRMM names the AP system, often an ERP module, and the purchasing card system as the main sources. Payments through voucher, direct-pay, or travel and expense systems should be included too.
Both payment channels carry real volume. Cards reached 79% of US noncash payments by number in 2024, according to the Federal Reserve Payments Study. US check payments still totaled 9.2 billion by number and $24.45 trillion by value in 2024, down 1.8 billion payments and $1.92 trillion from 2021, per the same study. Leave out either feed and the denominator is wrong.
Should you report spend under management by category?
Yes. A single company-wide percentage hides where the work needs to happen. Report the metric by category as well, so each owner can see their own number and act on it.
A simple category report shows, for each major category:
Total sourceable spend for the period
Managed spend, with the rule used to decide what counts
The percentage, and the change from the prior period
The number of suppliers, managed and unmanaged
The owner responsible for improving it
Categories with large spend and a low percentage are where to focus first. A category with small spend and a low percentage may not be worth the effort, and the report makes that trade-off visible instead of leaving it to instinct.
What mistakes inflate the number?
The most common mistakes shrink the denominator or stretch the definition of managed. Watch for these:
Leaving card or expense spend out of total spend, which removes a lot of unmanaged buying from the calculation
Counting any spend with a contracted supplier as managed, even when it was bought off-contract at list price
Excluding categories because they're hard to manage, rather than because they can't be sourced
Counting a supplier as managed because a contract exists, even if the contract has expired
Each of these makes the percentage look better without changing anything. A number that rises because of definitions rather than behavior will mislead the people who rely on it.
The fix is to write the definition down once and keep it stable. Decide what counts as managed, list the exclusions, and note any change to either in the report. If the definition changes, restate the prior periods on the new basis so the trend still means something.
Does card spend count as spend under management?
Card spend counts in the denominator, because it's money paid to third parties through a system AHRMM names as a main data source. Whether it counts as managed depends on the program. Card purchases are managed when the program's controls and supplier terms meet your definition of managed.
Card controls are what make that possible. Spending rules by merchant category, amount, and purchase type decline unauthorized purchases before they happen. Department spend controls tie each card to a budget. Card programs with those controls in place often manage spend that would otherwise escape purchase orders entirely. Corpay's single-use virtual cards apply the same idea to supplier payments, with each card number limited to one approved payment.
Controls also limit fraud exposure, which matters for any managed channel. 76% of US organizations experienced attempted or actual payments fraud in 2025, and just 17% use AI to fight it, according to the 2026 AFP Payments Fraud and Control Survey Report. The same survey found 74% of organizations were affected by business email compromise.
When is card spend unmanaged?
Card spend is unmanaged when cards carry no meaningful limits, no merchant restrictions, and no policy on which suppliers to use. A card that can buy anything from anyone is a payment method, not a control.
In my experience, the clearest sign is a card statement full of the same purchase type from many different merchants. That's maverick spend on a card instead of an invoice. Fixing it usually means steering those purchases to preferred suppliers and adding merchant rules, not taking the cards away.
What is a realistic spend under management target?
There's no verified benchmark for a spend under management target, so a realistic target starts from your own baseline. Measure where you are, pick the categories where management is achievable, and raise the number category by category.
AHRMM notes that 100% is not necessarily attainable or desirable. Some spend is too small, too rare, or too specialized to be worth managing through a contract. A sensible goal is steady improvement in the categories that matter, not a company-wide percentage borrowed from someone else's report.
Automation makes the measurement itself cheaper. 89% of organizations use at least some AP automation, yet half still push more than 5,000 invoices a month through workflows that are not fully automated, according to PYMNTS Intelligence and WEX. Companies at 30% or higher touchless invoice processing show 3.5 times higher AP productivity on average, according to a November 2025 Hackett release. Invoices processed without manual handling arrive coded and classified, which makes the monthly calculation far easier.
How do you raise spend under management?
Raise spend under management by giving requesters an easier managed option than the unmanaged one. The main levers are:
Contracts with preferred suppliers in the largest fragmented categories
Catalogs or approved-supplier lists that requesters can use without a long approval
Card programs with merchant and amount controls for small, frequent purchases
Consolidation of the long tail, covered in the guide to tail spend management
A requisition step in the procure-to-pay process for purchases above a threshold
Measure it monthly or quarterly, depending on how quickly your spend changes, and track it alongside other accounts payable KPIs. A rising percentage in a category you've worked on confirms the lever is working.
Who should own the metric?
In a company without a procurement team, the controller or a finance manager usually owns spend under management. Finance holds the AP and card data, sets the definitions, and reports the number. Category owners, often department heads, are responsible for moving their own slice.
Splitting ownership that way keeps the metric honest. The person who defines and reports the number isn't the one graded on raising it, which removes the temptation to adjust definitions instead of behavior.
How Corpay brings more spend under management
Card programs put a control point on spend that often escapes purchase orders. Corpay purchasing cards apply spending rules by merchant category, amount, and purchase type, with unauthorized purchases declined and automated GL coding from merchant history.
Corpay procure-to-pay adds invoice capture with line-item detail, 2- and 3-way matching to purchase orders and receipts, and fully managed AP that pays suppliers by virtual card, ACH, or check. Corpay offers 100+ ERP integrations, with NetSuite and Sage Intacct among them alongside Business Central and Acumatica, and most programs are live in weeks.
Frequently Asked Questions
What is spend under management?
Spend under management is the percentage of sourceable spend that runs through approved suppliers, contracts, and controls. It measures how much of a company's purchasing is actively managed rather than bought ad hoc.
How do you calculate spend under management?
Divide managed spend by total spend minus exclusions such as taxes and salaries, then multiply by 100. The worked example above shows the math with round, hypothetical numbers.
What is a good spend under management percentage?
There's no universal benchmark. Start from your own baseline and improve category by category. Aiming to manage every dollar usually isn't sensible, because some spend isn't worth managing through contracts.
Which spend management software is the best?
The right software depends on your spend. For spend under management, look for tools that cover both AP and card data, apply controls at the point of purchase, and classify spend consistently. The guide to spend management platforms covers how to compare them.
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