The single biggest cash-flow lever in a small business is speed of collection. A business that collects in 5 days runs on half the working capital of one that collects in 30 — same revenue, radically different stress.
Every tactic below is worth days off your average collection time. Stack a few and your Days Sales Outstanding can drop from 30+ to under a week.
1. Invoice the same day you finish. The clock starts when you send. Every day you wait to invoice is a day added to the eventual payment date. Same-day invoicing (or in-truck invoicing before you leave the site) is the single most effective habit.
2. Send by text, not just email. Text messages get a 98% open rate in under 3 minutes. Email averages 20% opens in 90 minutes and gets caught in spam. If your customer replies to texts, invoice them by text.
3. Put the pay button front and center. A one-tap card, Apple Pay, or Google Pay button removes friction. Customers pay a text invoice in the parking lot of a coffee shop. They don't pay a mailed PDF for two weeks.
4. Collect a deposit at approval. For jobs over a few hundred dollars, require a 25–50% deposit before you start. This is standard in the trades and legal in every state. Deposits filter out customers who can't pay and give you the working capital to buy materials.
5. Set shorter payment terms. 'Net 30' is a hangover from a time when checks were mailed weekly. For most small services, 'due on receipt' or 'net 7' is entirely reasonable. Customers who need 30 days will ask.
Frequently asked questions
What's a normal Days Sales Outstanding for a small business?
30 days is the common benchmark but it's much higher than it needs to be for service businesses. With SMS invoicing, card payments, and auto-reminders, DSO under 7 days is achievable and normal.
Are late fees legal?
Yes in nearly every state, with limits. 1.5% per month is common and safe. Some states cap the annual rate — check your state's specifics.
Should I stop offering net 30?
For B2B customers who require it, no. For everyone else, yes — default to due on receipt and only offer terms when asked.
