How AR works in QuickBooks Online
Every invoice you create adds to the Accounts Receivable balance. When a customer pays and you record it with Receive payment, or the payment comes in through QuickBooks Payments, it’s applied to the invoice and the balance falls. Whatever is still open is your receivables.
The accounting side is tidy. The trouble is the gap between open and paid. QuickBooks will tell you an invoice is 23 days late. It won’t ask the customer’s accounts payable team why, notice that they replied “we need a W-9 first”, or remember that they promised Friday.
That gap costs real money. In Intuit’s own Small Business Late Payments Report 2026, owners with unpaid invoices were owed $17.7K on average, and 39% said a single late payment had strained their ability to cover payroll or bills.
Reading the aging reports
QuickBooks Online has two aging reports under Reports, in the Who owes you section (Intuit’s instructions). They answer different questions, so use both.
- A/R Aging Summary shows each customer’s balance split into current, 1 to 30, 31 to 60, 61 to 90 and over 90 days past due. It answers: where is the money stuck?
- A/R Aging Detail lists every open invoice with its due date and days past due. It answers: what do I do next?
Three habits make them more useful. Run them as of today, not month end, when you’re planning follow-up. Sort the summary by the 31 to 60 column, because those customers are late but still easy to recover. And customize the detail report to show the customer’s email, so you can see at a glance who has no billing contact on file.
Five clean-up checks before you chase
Chasing a customer for money they already paid is a quick way to sour a good relationship. Before any reminder goes out, from you or from software, run these checks.
| Check | Where to look | Why it matters |
|---|---|---|
| Unapplied payments | Customer record, or the Open Invoices report alongside payments | A payment recorded but not linked to an invoice leaves the invoice “open”. |
| Undeposited Funds | Chart of accounts | Payments received but never deposited can hide here for months. |
| Unapplied credits | Customer record | A credit memo that should have reduced an invoice. |
| Billing email | Customer record | Reminders to a person who left go nowhere. Add an AP address where you have one. |
| Duplicate customers | Customer list | The same company under two names splits its balance and its history. |
Doing this once properly usually turns up a few “overdue” invoices that were paid all along. Doing it weekly, as the first step of your AR routine, keeps the aging report honest.
QuickBooks’ own reminders
QuickBooks Online can email reminders for overdue invoices: per Intuit’s help article, up to three automatic reminders, each scheduled up to 90 days before or after the due date. Intuit has also been adding AI to that flow. As of November 2026, Intuit’s Payments AI page describes drafting reminders and suggesting late fees based on customer history, on QuickBooks Essentials, Plus, Advanced and Intuit Enterprise Suite. The wording is “drafts” and “suggests”, which points to a person approving each step.
For a business with a handful of customers who are occasionally late, that’s often enough. What it leaves with you is everything after the email:
- Replies land in your inbox, and you decide whether each one is a promise, a dispute or a question.
- A promised date isn’t tracked against the invoice, so somebody has to remember to check it.
- Disputes have no queue, no owner and no status.
- Widening to the customer’s accounts payable team, or a second contact, is manual.
That follow-up is what fills the afternoon, and it’s the part dedicated collections tools are for.
Adding collections on top of QuickBooks Online
You don’t need to move your invoicing to automate collections. Tools that sit on top of QuickBooks Online keep QuickBooks as the record and do the chasing alongside it. When you evaluate one, three things matter most:
- What it writes back. The less, the better. Recording payments against invoices is useful. Editing invoices or creating customers is a reason for caution.
- Whether it sees your manual payments. If you record a check in QuickBooks, reminders for that invoice should stop on their own.
- Who handles replies. If replies still come to your inbox, you’ve automated the easy half.
With OnDue, for example, you sign in to QuickBooks Online from OnDue and it imports open invoices, customers and contacts, then syncs every 15 minutes. It drafts a reminder for each overdue invoice and you approve or skip each one. Replies are sorted for you: a promise holds the invoice until the date, a dispute or a question pauses it and comes to you. A payment you record in QuickBooks stops the reminders.
Whatever you use, do the clean-up checks above first. Automation sends reminders faster, and that includes the wrong ones.
Where OnDue stops today
OnDue is in early access, so here is what it doesn’t do on QuickBooks yet:
- No pay page yet. A card and ACH pay page, with the payment written back to the invoice in QuickBooks, is Coming soon Until then customers pay the way they do now and you record it.
- Read-only. OnDue changes nothing in your QuickBooks company today.
- One cadence. Early-access accounts run the standard cadence (days 1, 7, 14 and 30 after the due date). Custom cadences are coming soon.
- Approval on every reminder. There is no automatic mode yet, and drafts can’t be edited before you approve them.
- QuickBooks Online only. QuickBooks Desktop isn’t supported.