The short answer. Shorten the whole operating cycle, not just the collection tail. Take deposits at contract, bill at milestones, invoice the day work completes, put terms in writing, and enforce them every time. Each day you remove from Days to Collect frees one full day of operating cost in cash. On a $4 million business, that is roughly $8,500 a day.
The Cycle Starts Before the Invoice
Most owners think about collections as the gap between invoice and payment. That is the tail. The real cycle starts the day you commit cash: materials ordered, labor scheduled, inventory bought. It ends when the customer's money lands in your operating account.
A contractor breaks ground on day one, orders materials on day three, finishes on day 32, invoices on day 34, and collects on day 68. Receivable days says 34. The business actually funded that job for 68. That full span is Average Days to Collect, and it drives Working Capital Required.
What a Day Is Worth
Working Capital Required equals Average Days to Collect multiplied by Average Daily Cost of Operations. A $4 million contractor with $3.12 million in annual cost of goods and operating expense runs about $8,550 a day.
Take that contractor from 68 days to 52. Sixteen days at $8,550 is about $136,800 of cash freed. No new revenue. No new loan. Just a shorter cycle. That is usually the cheapest money a business will ever find.
The Levers, In Order of Power
- Deposits at contract. The single biggest lever for trades and custom work. A deposit moves cash to the front of the cycle. Without one, you are financing the customer's project out of your reserve.
- Milestone billing. Bill at defined stages instead of at completion. A 60-day job billed in three parts collects most of its cash weeks earlier.
- Invoice the day the work completes. Every day an invoice sits in a drawer is a day added to the cycle that the customer never asked for. Same-day invoicing is free.
- Terms in writing, before work starts. Net 15 or net 30, stated on the proposal and the invoice. Terms nobody agreed to are terms nobody follows.
- Remove payment friction. Card, ACH, and a pay link on the invoice. If paying you takes a check, a stamp, and a trip to the mailbox, you will get paid last.
- Enforce, every time. A reminder before the due date, a call the day after, and a stop-work policy you actually use. Customers pay the vendors who follow up first.
The Customers Who Never Pay on Time
Every book has a few. They pay at 75 days when everyone else pays at 40, and they are usually large enough that the owner is afraid to push. Model them standalone. Their slow pay ties up cash you are borrowing or stretching vendors to cover. If the margin they deliver does not pay for that, they are a cost, not a customer. See How Do I Know If a Customer Is Unprofitable?
What Not to Do
Do not reach for fast money to cover a collection problem. A merchant cash advance converts a timing problem into a cost problem at effective rates that can run from 40 to 100 percent. A shorter cycle fixes the cause. Expensive debt rents you a few weeks.
Frequently Asked Questions
Should I offer an early payment discount?
Price it first. A 2 percent discount for paying in 10 days instead of 30 is a very expensive way to borrow 20 days of cash. Deposits and same-day invoicing usually free more cash at no cost.
Should I charge late fees?
Yes, if they are in your written terms and you enforce them consistently. A late fee you waive every time teaches customers your terms are optional.
What about factoring my receivables?
Factoring can bridge a cycle, but it costs margin on every invoice you sell. Fix the cycle first. Use factoring only when the math shows the cost is lower than the cash constraint it removes.
How do I ask for a deposit without losing the job?
State it as policy, not preference. Deposits are standard in trades, custom manufacturing, and professional services. Customers who refuse any deposit are telling you how they will treat the final invoice.