What Is Accounts Receivable? Managing Invoices, Payments, and Cash Flow

Grace Achieng
By Grace Achieng

Head of Finance Solutions

20263 min read
What Is Accounts Receivable? Managing Invoices, Payments, and Cash Flow

TL;DR

Accounts receivable (AR) is the money customers owe your business for goods or services already delivered but not yet paid for. Managing AR well means issuing clean invoices, tracking what's outstanding, and following up on time so cash arrives when you planned for it.

Why accounts receivable is your biggest asset and risk

For most SMEs, receivables are the single largest number on the balance sheet after fixed assets. It's also the easiest to let slip: invoices filed in drawers, balances tracked in memory, and follow-ups that happen only when cash runs low.

The AR lifecycle

AR follows a predictable cycle, and each step is a place where speed is won or lost.

  • Invoice: issue accurately and immediately after delivery.
  • Send: deliver by email, SMS, or WhatsApp.
  • Track: log the balance and its age.
  • Follow up: remind before and after the due date.
  • Collect: record payment and match it to the invoice.

The link between invoicing speed and cash flow

A business that invoices on day one gets paid sooner than one that invoices on day fifteen — even with identical terms. Automation that issues invoices instantly from completed work measurably shortens your cash cycle.

AR aging: the report that keeps you honest

An aging report groups outstanding invoices by how long they've been due: current, 1-30, 31-60, 61-90, and 90+. Reviewing it weekly tells you where collection effort belongs and protects against slow-build bad debt.

Frequently asked questions

What is accounts receivable in simple terms?

Money customers owe you for goods or services already delivered but not yet paid for.

What is the difference between accounts receivable and payable?

Receivable is money owed to you by customers. Payable is money you owe to suppliers.

How do I speed up accounts receivable?

Invoice immediately after delivery, send invoices through channels customers read, and follow up before and after due dates.

What is an AR aging report?

A report grouping outstanding invoices by how long they've been due, usually 0-30, 31-60, 61-90, and 90+ days.

How does software help manage receivables?

Retten Work issues invoices, tracks balances, sends automated reminders, and matches payments automatically.