Key takeaways
- The cash conversion cycle measures how long it takes for a business to convert investments in inventory and receivables into cash. A shorter cycle means the business generates cash faster, which affects working capital targets and purchase price in M&A.
- Days Sales Outstanding (DSO), Days Payable Outstanding (DPO), and Days Inventory Outstanding (DIO) are the three components. Each is independently improvable, and each improvement compounds into enterprise value through the working capital peg.
- A 10-day improvement in the cash conversion cycle in a $20M revenue business reduces the working capital requirement by approximately $550K, which flows directly to the seller as higher net proceeds if the improvement is achieved before close.
- Buyers set working capital targets based on trailing 12-month averages. Improving the cycle before a process locks in lower working capital norms that benefit the seller at closing adjustment.
Most founders who have built successful businesses have developed an intuitive understanding of cash flow. They know what their bank account looks like at the start and end of each month, they know when payroll goes out, and they have a sense of which customers pay slowly. What most founders do not have is a systematic view of the cash conversion cycle: the quantified relationship between billing, collecting, paying vendors, and managing inventory that determines how much working capital the business consumes and how much cash it generates from operations.
In an M&A context, this matters directly and measurably. The cash conversion cycle determines the working capital target that buyers set at closing, and the working capital target determines how much of the headline enterprise value the founder actually receives. A business with a 65-day cash conversion cycle will have a higher working capital peg than the same business with a 45-day cycle, and the difference flows directly to the seller as reduced or increased net proceeds.
3 components
DSO, DPO, DIO: the three levers of the cash conversion cycle
10 days
Improvement in CCC that produces approximately $550K in working capital benefit at $20M revenue
$550K
Approximate net proceeds impact of a 10-day CCC improvement in a $20M revenue business
DSO, DPO, and DIO: what each component measures
In lower-middle-market transactions, working capital adjustments at closing average $320K to $580K from the estimated value at LOI signing, with the majority of adjustments unfavorable to sellers who did not actively manage their working capital cycle before the process (SRS Acquiom 2024).
Businesses that reduced DSO by 7 or more days in the 12 months before a transaction close received an average of $240K more in net proceeds per $10M in revenue compared to businesses with flat or worsening DSO over the same period (Deloitte 2025).
The most common cause of unfavorable working capital adjustments at closing in lower-middle-market transactions is DSO expansion in the 3 to 6 months before close, typically driven by sales acceleration activity that outpaces collections management.
Days Sales Outstanding (DSO) measures how long, on average, it takes the business to collect payment after revenue is recognized. DSO equals (accounts receivable / annual revenue) times 365. A business with $2M in accounts receivable and $12M in annual revenue has a DSO of approximately 61 days. If industry benchmarks for comparable businesses run at 40 to 45 days, the business has a DSO opportunity: tightening collections by 15 to 20 days would free up $500K to $650K in cash.
Days Payable Outstanding (DPO) measures how long the business takes to pay its vendors. DPO equals (accounts payable / cost of goods sold) times 365. Higher DPO is generally favorable to working capital because the business is using vendor financing rather than its own cash. However, artificially extending payables in the 60 to 90 days before close is visible to buyers and will be reversed in the working capital adjustment.
Days Inventory Outstanding (DIO) applies to product businesses and measures how long inventory sits before it is sold. DIO equals (inventory / cost of goods sold) times 365. Lower DIO is favorable: inventory converts to receivables and then to cash faster. High DIO indicates either slow-moving inventory, over-ordering, or insufficient demand relative to stock levels, all of which buyers view as working capital risk.
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How CCC affects the working capital peg in M&A
The working capital peg is the mechanism through which the cash conversion cycle directly affects sale proceeds. In most M&A transactions, the purchase price is set at a defined enterprise value, with a working capital adjustment at closing that compares actual working capital at close to a target (the peg). If actual working capital exceeds the peg, the seller receives additional proceeds. If actual working capital is below the peg, proceeds are reduced.
The peg is typically set as the trailing 12-month average of normalized working capital. That average reflects the business's actual cash conversion cycle over the measurement period. A business that has improved its CCC, reducing DSO and DIO while maintaining DPO, over the 12 months before a process will have a lower average working capital requirement, which becomes the peg. At closing, the seller's obligation to deliver working capital equal to the peg is easier to meet, and excess working capital above the peg flows to the seller as additional proceeds.
A manufacturing business with $18M revenue had a CCC of 68 days (DSO of 52, DIO of 34, DPO of 18). Eighteen months before a targeted sale, the CFO implemented three initiatives: tightened payment terms for new customers from net-60 to net-30, implemented a collections process that reached out at day 25 for all outstanding invoices, and renegotiated two key vendor payment terms from net-30 to net-45. Twelve months later, DSO was 39 days (down 13), DPO was 31 (up 13), and DIO was unchanged at 34. CCC improved from 68 days to 42 days, a 26-day improvement. On $18M revenue, that improvement reduced average working capital requirements by approximately $1.3M. The peg was set at the new, lower level. At closing, the business delivered working capital equal to the peg, and the CFO estimated the working capital optimization contributed $1.1M in net proceeds compared to the pre-improvement baseline.
Practical levers for each CCC component
DSO Reduction Levers
Lever 1: Tighten payment terms for new customers
Default to net-30 for new customers rather than net-45 or net-60. The incremental business lost from tighter terms is typically minimal; the working capital improvement is significant.
Lever 2: Invoice immediately
Businesses that invoice upon delivery or service completion rather than at month end reduce DSO by 5-10 days without changing customer terms. Batch invoicing at month end is the single most common avoidable DSO inflator.
Lever 3: Automate early collections outreach
Reach out at day 25 on outstanding invoices, before they are officially overdue. Automated email reminders at day 25 and day 35 reduce the average collection period by 4 to 8 days without human collections effort.
Lever 4: Add early payment incentives for large customers
For customers representing more than 5% of revenue, a 1% to 1.5% early payment discount for payment within 10 days is often economically rational if their current DSO is above 45 days.
Lever 5: Review the concentrated customer's payment terms
If your largest customer has extended payment terms, renegotiating before a transaction can produce a disproportionate DSO improvement. Even moving from net-60 to net-45 on a customer representing 30% of revenue improves overall DSO by approximately 4.5 days.
DPO improvement is one of the highest-return CCC levers because it requires no customer interaction and no process change: it simply requires negotiating longer payment terms with vendors who are willing to provide them. Many vendors prefer longer-term customers with reliable payment over net-30 terms. A straightforward request to extend from net-30 to net-45 or net-60 is accepted more often than not for businesses with strong payment histories.
Connecting CCC improvement to pre-transaction preparation
CCC improvement is most valuable when it is implemented early enough that the improvement is reflected in the trailing 12-month average used to set the working capital peg. An improvement made 6 months before close will be partially reflected in the peg (the period of improvement overlaps with 6 of the 12 months in the trailing average). An improvement made 12 months before close will be fully reflected.
This timing dynamic means that working capital management should be part of the transaction preparation plan that starts 18 months before a targeted close, not an afterthought in the 90-day pre-process sprint. The founders and CFOs who understand this achieve materially better working capital outcomes at closing than those who focus exclusively on the enterprise value negotiation.
Frequently asked questions
What is the cash conversion cycle?
The cash conversion cycle measures how long it takes a business to convert investments in inventory and receivables into cash. It equals DSO plus DIO minus DPO. A lower number is better: the business collects cash faster and pays vendors slower, reducing the working capital tied up in operations.
How does the cash conversion cycle affect M&A proceeds?
The CCC determines the working capital target (peg) set at closing. Buyers set the peg as the trailing 12-month average of normalized working capital. Businesses with lower CCCs have lower working capital pegs, which means the seller keeps more of the headline enterprise value as net proceeds at closing rather than delivering it as working capital to the buyer.
What is the fastest way to improve DSO before a sale?
The three fastest DSO improvements are: switching from month-end batch invoicing to invoice-on-delivery (reduces DSO by 5-10 days immediately), implementing automated collections outreach at day 25 on outstanding invoices, and renegotiating payment terms with new customers to net-30 as the default. Together, these can reduce DSO by 10 to 15 days within 90 days of implementation.
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