Business Growth4 min read

Invoice Faster, Get Paid Sooner: 8 Tips for Quicker Payments

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Sophie Chen

Head of Content at SortBooks

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The Late Payment Problem

The average Australian small business has $31,000 in outstanding invoices at any given time. In the UK, late payments cost SMBs an estimated GBP 684 million per year in interest and fees. In the US, 64% of small businesses report issues with late-paying customers.

Late payments are not just an inconvenience - they are an existential threat to small businesses operating on thin margins. Here is how to fix it.

1. Invoice on the Day of Delivery

The single most impactful change you can make: invoice immediately. Not next week. Not at month-end. The day the work is done or the product is delivered.

Every day you delay sending an invoice is a day added to your payment cycle. If your payment terms are Net 14 and you take 7 days to invoice, your actual payment timeline is 21 days - and that is assuming the client pays on time.

Set up templates in Xero so creating an invoice takes under 2 minutes. Better yet, set up recurring invoices for regular clients on retainers.

2. Make Payment Frictionless

The easier it is to pay, the faster people pay. Include these on every invoice:

Online payment link - Stripe or GoCardless through Xero. The client clicks a button and pays with their card. Average payment time drops from 30+ days to under 7 days.

Bank transfer details - BSB and account number clearly displayed. Some clients prefer bank transfer.

Multiple payment options - Credit card, bank transfer, BPAY, and even Apple Pay or Google Pay if possible. Different clients have different preferences.

The goal is zero friction. Every step between "I should pay this" and "I have paid this" reduces the likelihood of immediate payment.

3. Set Clear Payment Terms

Your payment terms should be:

  • Stated on every invoice in clear language
  • Agreed before work begins in your proposal or contract
  • Consistent across all clients (with exceptions only for large corporates)

Recommended terms:

  • Freelancers and sole traders: Net 7 or Net 14
  • Small business services: Net 14
  • Large business clients: Net 30 (only if they insist)
  • Large projects: 50% deposit, 50% on completion

Never agree to Net 60 or Net 90 unless the project size justifies it and you have the cash reserves to wait.

4. Automate Payment Reminders

Set up automatic reminders in Xero:

  • 3 days before due: "Friendly reminder that invoice #1042 is due on [date]"
  • Day after due: "Invoice #1042 was due yesterday. Please arrange payment."
  • 7 days overdue: "Second reminder: Invoice #1042 is now 7 days overdue."
  • 14 days overdue: "Final notice: Invoice #1042 is 14 days overdue. Please pay immediately to avoid late fees."

Automation removes the emotional burden of chasing payments. You are not being pushy - the system is doing its job.

5. Charge Late Payment Fees

Include a late payment clause in your terms of engagement: "Invoices not paid within [terms] days will incur a late payment fee of [X]% per month on the outstanding balance."

In Australia, you can charge a reasonable rate - typically 1-2% per month. In the UK, the Late Payment of Commercial Debts Act allows you to charge statutory interest of 8% plus the Bank of England base rate.

The threat of late fees often motivates payment more than the fee itself.

6. Require Deposits for New Clients

For any new client or project over $2,000:

  • Request 30-50% deposit before work begins
  • Request progress payments at defined milestones for large projects
  • Only deliver final work after full payment

This protects your cash flow and ensures the client has financial commitment to the project.

7. Send Professional Invoices

A professional-looking invoice gets paid faster than a sloppy one. Ensure your invoices include:

  • Your business name, logo, and ABN/VAT number
  • "Tax Invoice" clearly stated (for GST/VAT registered businesses)
  • Sequential invoice number
  • Clear description of work or products
  • GST/VAT shown separately
  • Due date prominently displayed
  • Your payment details
  • Payment link

Xero generates professional invoices automatically. Use your brand colours and logo for a polished look.

8. Know When to Escalate

If a client consistently pays late despite reminders:

Week 1 overdue: Automated reminder

Week 2 overdue: Personal email or phone call

Week 3 overdue: Formal letter stating you will pause work until payment is received

Week 4 overdue: Engage a debt collection service or begin small claims process

The key is to have a defined escalation process and follow it consistently. Clients who know you tolerate late payment will continue paying late.

Measuring Improvement

Track your Days Sales Outstanding (DSO):

DSO = (Accounts Receivable / Revenue) x Number of Days

If your DSO is 45 days and you implement these changes, you should see it drop to 15-25 days within 2-3 months. On $500,000 annual revenue, reducing DSO from 45 to 20 days frees up approximately $34,000 in cash that was previously locked in unpaid invoices.

That is $34,000 back in your bank account just from invoicing better. No new sales required.

Automated tools like SortBooks track your DSO in real-time and flag invoices that are approaching or past their due dates, ensuring nothing falls through the cracks.

Ready to automate your bookkeeping?

SortBooks connects to Xero and categorises your transactions automatically. Start free today.

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