Accounts Receivable and Payable

What Are Accounts Receivable and Accounts Payable?

Two of the most fundamental concepts in business finance are accounts receivable (AR) and accounts payable (AP). Together, they form the core of how a company manages the flow of money into and out of the business — and they directly determine your actual cash position at any given moment.

Accounts Receivable (AR)

Accounts receivable is money your customers owe you for goods or services they’ve already received but haven’t paid for yet.

When you invoice a customer and they haven’t paid, that invoice amount sits in AR. It’s a current asset on your balance sheet — real money you’re owed, just not in your bank account yet.

Example:

• You deliver a $50,000 software implementation to a client in March
• You invoice them on March 31 with net-60 terms
• That $50,000 is in AR from April 1 until the client pays in May

AR aging schedule: A report that shows how long each invoice has been outstanding — grouped into buckets like 0–30 days, 31–60 days, 61–90 days, and 90+ days. Anything in the 90+ bucket is a collection risk.

Accounts Payable (AP)

Accounts payable is money your company owes to vendors, suppliers, and service providers for things already received but not yet paid for.

When you receive a vendor invoice and haven’t paid it, that amount sits in AP. It’s a current liability on your balance sheet.

Example:

• Your cloud infrastructure provider bills you $20,000 for Q1 usage
• You receive the invoice on April 1 with net-30 terms
• That $20,000 is in AP until you pay it by April 30

Why the Difference Between Profit and Cash Matters

One of the most dangerous misunderstandings for new founders is assuming that being profitable means having cash. It doesn’t.

Cash position = Profit + timing of AR collection − timing of AP payments

Scenario	Profitable?	Cash?
Customers pay in 90 days, you pay vendors in 30	Yes	Probably not
Customers prepay annually (SaaS)	Maybe	Yes
Vendor terms are net-90, customers pay in 30	Yes	Yes

The Cash Conversion Cycle

The Cash Conversion Cycle (CCC) measures how many days it takes to convert investments in inventory and receivables into cash:

CCC = Days Sales Outstanding (DSO)
    + Days Inventory Outstanding (DIO)
    − Days Payable Outstanding (DPO)

A lower (or negative) CCC means your business generates cash faster than it consumes it — the ideal position for a capital-efficient startup.

Practical Tips for Founders

On AR:

• Invoice immediately when services are delivered or milestones hit
• Offer early payment discounts (e.g., 2% off for payment within 10 days)
• Follow up on overdue invoices at 30, 45, and 60 days — automatically
• For enterprise deals, negotiate payment terms before signing

On AP:

• Take full advantage of vendor payment terms without paying late
• Build relationships with key vendors — goodwill matters when you need flexibility
• Automate AP processing to avoid missed payments and late fees
• Use AP timing strategically during tight cash periods

Key Takeaway

AR and AP are the two sides of your company’s short-term cash equation. Managing AR means collecting money faster; managing AP means paying money strategically. The gap between the two — and how long that gap is — determines whether a profitable business actually has cash to operate. Every founder should understand both and review AR aging reports at least monthly.