Unpaid invoices piling up? Give each one a next step

You finish the work, send the invoice, and get back to the next job. A few weeks later, you’re scrolling through old emails trying to remember who promised to pay Friday—and which Friday that was.

An overdue-invoice report can tell you what the books say is unpaid. It won’t tell you whether the customer needs a corrected invoice, already sent a check, or is waiting for someone else to approve payment. A useful follow-up routine puts that missing information beside the balance.

Start with a list you can trust

Pick a regular weekly review time and choose one person to own the list. This works for a contractor billing completed jobs, a cleaning company invoicing commercial clients, or a consultant working with customers nationwide. Start with invoices already sent, not estimates or work you haven’t billed yet.

In QuickBooks Online, open Reports → Standard reports → Who owes you → Accounts receivable aging detail. Review the report date and aging options so you’re looking at the current position. The detail report shows outstanding transactions and how long they are past due; the summary groups customer balances. If your plan or layout differs, start with your invoice list and its unpaid balances. Intuit: Accounts receivable aging reports.

Before contacting anyone, compare each balance with recent payments and customer messages. Check for partial payments, unapplied receipts, agreed credits, and payments still being processed. If the customer says they paid, ask for the date, amount, and payment reference, then trace it. An open invoice is a bookkeeping status, not proof that the customer ignored you.

For a payment received outside QuickBooks Payments that has not already been recorded, use + Create → Receive payment. Choose the customer, payment method and appropriate deposit account, enter the amount received, and apply it to the correct invoice before saving. If only part was paid, apply only that amount. Intuit notes that QuickBooks Payments automates payment recording, so check for an existing entry first. Intuit: Record invoice payments.

When the bank download arrives for an already recorded payment or deposit, match it to the existing record instead of adding another sale. If the money is already in your books but assigned to the wrong invoice, investigate that entry rather than recording it again. Intuit: Matching bank transactions.

Track the next action, not just the due date

A small spreadsheet or shared list is enough. Use one row per invoice and these headings:

Customer · Invoice number · Due date · Remaining balance · Last contact · Customer response · Next action · Next action date · Person responsible

Keep the invoice balance in your bookkeeping system as the source of truth; the list is for follow-up notes. Update it when payments arrive. Restrict access to the people handling billing and leave bank details out of it.

Here’s a made-up example. Invoice 1048 was $1,200, and the customer paid $400. The remaining balance is $800—not $1,200. They say the rest is scheduled for September 24. Record “Check payment September 25” as the next action. Until that $800 arrives, it remains money owed, not cash available to spend.

If the customer disputes $200 of that balance, note the dispute and who will resolve it. Don’t erase it, issue an unsupported credit, or mark the invoice paid just to tidy the list.

Send a message that makes replying easy

For an invoice you’ve checked and confirmed is overdue, use a short message like this:

Subject: Invoice 1048 — $800 remaining

Hi [Name], I’m checking on the $800 balance for [job or service], invoice 1048, due [date]. I’ve attached another copy for convenience. Could you confirm the expected payment date? If anything on the invoice needs attention, please let me know so we can resolve it. If payment is already on its way, the date and reference will help me locate it. Thank you, [Name].

Replace the details and attach the actual invoice before sending. Use your established payment instructions or payment link. If you’re repeatedly getting no response, call the usual contact and confirm who handles payment, whether the invoice was received, and what is holding it up.

In QuickBooks Online, find the invoice under Sales & Get Paid → Invoices, choose Send reminder from its action dropdown, review the message, and send. Menu labels may vary. Intuit: Invoice reminders.

Use automation after the records are current

For straightforward invoices, QuickBooks Online offers reminders under Settings → Account and settings → Sales → Reminders. You can configure up to three, customize their messages, and choose dates relative to the due date. Intuit says automatic reminders apply to qualifying unpaid invoices already emailed through QuickBooks. Intuit’s reminder setup instructions.

A starting routine might be a reminder three days after the due date, a personal follow-up at ten days, and a call at twenty. Those are suggested checkpoints, not legal deadlines or a promise of payment. Adjust them to your agreed terms and customer relationships. If you have disputes or individual payment arrangements, review how automation will affect those invoices before enabling it; use manual follow-up when needed.

Finish the review with a clear handoff

By the end of the review, every overdue invoice should have one of three explanations: payment needs to be recorded or located, an issue needs resolving, or a customer needs a follow-up. Give each open item an owner and a date. At the next review, check those actions first.

Track actual receipts separately from promised payments. If overdue balances aren’t improving, look at the reasons: invoices going to the wrong address, missing purchase-order details, unresolved work questions, or customers not keeping payment commitments. That tells you what to fix before sending more reminders.

If your open-invoice list includes old credits, mismatched payments, or balances you don’t trust, Dells Bookkeeping can help review the records and scope a cleanup. We also offer training if you want to run the routine yourself. Tell us where your invoicing process is getting stuck, and we can discuss the work and price before getting started.