GuideFeb 12, 2026
How to automate invoice reminders in Xero (2026 guide)
Step-by-step guide to setting up Xero's built-in reminders — and how to go beyond its limits with SMS, smart scheduling, and auto-stop.
Read articleDays sales outstanding is the clearest indicator of your accounts receivable health. A high DSO means your cash is trapped in unpaid invoices instead of fueling your business. The average SMB has a DSO of 40+ days, but it does not have to be that way.
This guide covers the DSO formula, industry benchmarks, and 8 proven strategies that can cut your DSO in half. Most of them cost nothing to implement.
“Multiple Excel spreadsheets tracking different aging buckets. A shared Outlook calendar with follow-up reminders that everyone ignores.”
– Reddit user on r/Entrepreneur
“I feel like I’m spending way more time than I should be chasing overdue payments on behalf of my clients.”
– Reddit user on r/bookkeeping
Get AI Summary
Days sales outstanding measures the average number of days it takes your business to collect payment after making a sale. It tells you how long your money sits in your customers' accounts before it reaches yours.
A lower DSO means you collect cash faster. A higher DSO means you are providing interest-free loans to your customers, loans that strain your working capital and limit your ability to grow, hire, or even cover payroll.
DSO = (Accounts Receivable / Total Credit Sales) x Number of Days
The total amount currently owed to you by customers at the end of the period.
The total revenue from sales made on credit during the period (exclude cash sales).
The length of the period you are measuring: typically 30 (monthly), 90 (quarterly), or 365 (annually).
Your business has $50,000 in accounts receivable at the end of the month. You made $100,000 in credit sales that month.
DSO = ($50,000 / $100,000) x 30 = 15 days
That means it takes you an average of 15 days to collect payment, which is excellent. Use our free DSO calculator to calculate yours instantly.
A “good” DSO depends on your industry and payment terms. But here are general benchmarks that apply to most small and medium businesses.
You are collecting cash quickly. Your AR process is healthy and efficient. This is the target for businesses on Net 15 or shorter terms.
Typical for businesses on Net 30 terms. You are in good shape but there is room for improvement. Most SMBs fall in this range.
Your cash is trapped for two months or more. This creates serious cash flow pressure and may indicate problems with your collection process, payment terms, or client quality.
| Industry | Average DSO | Target DSO |
|---|---|---|
| Professional services | 45-55 days | 25-35 days |
| Construction | 60-80 days | 40-50 days |
| Manufacturing | 50-60 days | 30-40 days |
| Technology / SaaS | 35-50 days | 20-30 days |
| Healthcare | 40-55 days | 25-35 days |
| Wholesale / Distribution | 35-45 days | 25-35 days |
| Freelance / Creative | 30-45 days | 14-21 days |
Your AR turnover ratio is the flip side of DSO. It tells you how many times per year you collect your receivables. Both metrics should be tracked together.
These strategies work independently but are most powerful when combined. Most cost nothing to implement. They just require changing how and when you follow up on invoices.
Every day between completing work and sending the invoice is a day added to your DSO. Many businesses wait days or even weeks to invoice because they batch invoicing or simply forget. Send the invoice the same day you deliver the work or product. If your accounting software integrates with your project management tools, automate this step entirely.
Reduces DSO by 3-7 daysIf you are offering Net 30 by default, consider switching to Net 15 or Net 14. Most clients will accept shorter terms without pushback. They simply pay based on whatever the invoice says. The shift from Net 30 to Net 15 alone can cut your DSO nearly in half. For new clients, start with shorter terms from day one rather than trying to change them later.
Reduces DSO by 10-15 daysA 2/10 Net 30 discount (2% off if paid within 10 days) gives clients a financial incentive to pay faster. For a $10,000 invoice, the client saves $200 by paying 20 days early. That is a meaningful incentive, and 30 to 40 percent of clients will take it. The 2 percent cost is almost always worth the cash flow improvement and reduced collection effort.
Reduces DSO by 15-20 days for participating clientsThe single most effective DSO reduction strategy is automated reminders. Send a courtesy reminder 3 days before the due date, a firm reminder on the due date, and escalating reminders at 7, 14, and 30 days overdue. Manual follow-up is inconsistent. You forget, you delay, you avoid the awkward conversation. Automation removes all of that.
Reduces DSO by 10-15 daysEmail open rates for business communication hover around 20 to 30 percent. SMS open rates are 98 percent, with most messages read within 3 minutes. Adding SMS reminders to your collection process ensures your payment requests are actually seen. A short, professional text with a payment link is often all it takes to prompt immediate action.
Reduces DSO by 5-10 additional days vs email onlyEvery friction point in the payment process adds days to your DSO. Accept multiple payment methods: credit card, ACH, bank transfer, and online payment platforms. Include a direct payment link in every invoice and every reminder. The fewer clicks between reading the reminder and completing payment, the faster you get paid.
Reduces DSO by 3-5 daysPrevention is better than collection. Before extending credit terms to a new client, run a basic credit check or request trade references. Clients with a history of late payment will drag your DSO up no matter how good your collection process is. Reserve your best terms (Net 30 or longer) for clients with proven payment reliability.
Prevents DSO increases from high-risk clientsLate payment fees only work as a deterrent if you actually charge them. State your late fee policy clearly on every invoice and in your contracts, then apply it consistently. A standard 1.5 percent per month late fee on a $10,000 invoice adds $150 after 30 days overdue. Most clients will prioritize your invoice over others once they know you enforce penalties.
Reduces DSO by 5-10 days through deterrenceStrategies 4 and 5, automated reminders and SMS, are the highest-impact, lowest-effort changes you can make. Learn more about SMS payment reminder templates and accounts receivable automation in our detailed guides.
Manual follow-up fails because of two problems: inconsistency and delay. You get busy, you forget, you feel awkward chasing clients for money. The result is that overdue invoices sit for days or weeks before anyone follows up.
Automated reminders solve both problems. They fire on schedule, every time, without you thinking about it. When combined with SMS (which has a 98% open rate compared to email's 20-30%), the impact on DSO is dramatic.
The difference is not marginal. It is transformational. A business that automates its collection process typically collects payment 15 to 25 days faster than one relying on manual follow-up. Over a year, that translates to tens of thousands of dollars in improved cash flow. Read our full guide on accounts receivable automation for implementation details.
Abstract numbers do not motivate action. Here is a concrete example showing the cash flow impact of cutting your DSO from 45 days to 23 days.
| Metric | Before (DSO 45) | After (DSO 23) | Difference |
|---|---|---|---|
| Cash tied up in AR | $150,000 | $76,667 | $73,333 freed up |
| Average days to get paid | 45 days | 23 days | 22 fewer days |
| Invoices overdue at any time | 35-40% | 10-15% | 60% fewer overdue |
| Hours/month on manual follow-up | 8-12 hours | < 1 hour | 10+ hours saved |
| Annual financing cost (if bridging at 10%) | $15,000 | $7,667 | $7,333 saved |
| Bad debt write-offs | 2-3% of revenue | < 1% of revenue | $12,000-$24,000 saved |
Before: AR = ($100,000 / 30) x 45 = $150,000 tied up in receivables at any given time.
After: AR = ($100,000 / 30) x 23 = $76,667 tied up in receivables at any given time.
That $73,333 difference is not theoretical. It is real cash that moves from your customers' accounts into yours. Cash you can use for payroll, inventory, marketing, or simply keeping in the bank as a buffer.
Reducing DSO is not a one-time project. It requires ongoing measurement so you can spot trends, catch problems early, and measure the impact of changes you make.
Track your DSO at the end of every month. This gives you a rolling view of collection performance and lets you spot deterioration quickly. Use our free DSO calculator to make this a 30-second task.
If your standard terms are Net 30 and your DSO is 45, you have a 15-day gap that represents collection inefficiency. Your DSO should be close to your payment terms. If it is not, your follow-up process needs work.
Your overall DSO is an average that can hide problems. Some clients may pay in 10 days while others take 90. Identify the slow payers dragging your average up and address them individually.
A DSO of 35 is fine. A DSO that went from 25 to 35 over three months is a warning sign. The direction matters as much as the absolute number. Catch upward trends before they become cash flow crises.
You now know the strategies. The hardest part is executing them consistently: sending reminders on time, following up without fail, escalating when needed. That is exactly what ChaseBot automates.
ChaseBot connects to your Xero account and automatically sends SMS reminders and professional email reminders before and after invoice due dates. When a client pays, reminders stop instantly. No manual work. No spreadsheets. No awkward conversations.
Automated SMS and email reminders that cut your days sales outstanding in half, without lifting a finger.
Try ChaseBot freeStep-by-step guide to setting up Xero's built-in reminders — and how to go beyond its limits with SMS, smart scheduling, and auto-stop.
Read articleLearn how to automate your AR process. Reduce DSO, eliminate manual follow-ups, and get paid faster. Step-by-step for small businesses.
Read articleCopy-paste late fee clauses for your invoices and contracts. Percentage-based, flat fee, payment terms, and early discount wording.
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