Accounts Receivable vs. Accounts Payable: A Plain-English Guide

If bookkeeping has a language barrier, accounts receivable and accounts payable are the first two words people stumble over. They sound like jargon, but they're actually simple once someone explains them without the textbook voice.

Accounts Receivable (AR): Money Coming to You

Accounts receivable is money that people owe you. You've done the work or delivered the product, you've sent the invoice, and you're waiting to get paid.

Every unpaid invoice is an accounts receivable entry. If you invoiced a client $2,500 on March 1 and they haven't paid yet, that $2,500 sits in your AR balance. It's an asset on your balance sheet. It represents money you've earned but haven't collected.

Why AR Management Matters

Having a lot of AR isn't necessarily bad. It means you're doing business. But old AR is a problem. If invoices are sitting unpaid for 60, 90, or 120+ days, your cash flow suffers even though your revenue looks healthy on paper.

I've seen businesses that look profitable on their P&L but can't pay their own bills because $30,000 is sitting in unpaid invoices. Revenue means nothing if the cash isn't actually in your bank account.

AR Best Practices

• Invoice immediately: Don't wait until the end of the month to send invoices. Send them the day the work is done or the product is delivered.
• Set clear payment terms: Net 15 or Net 30 is standard. Put the due date on the invoice in bold.
• Follow up at 7 days overdue: A polite email reminder. Most late payments are just people forgetting, not people avoiding you.
• Follow up again at 30 days: A firmer reminder. Pick up the phone if the email doesn't work.
• Run an AR aging report monthly: This shows you every unpaid invoice grouped by how old it is. Anything over 60 days needs immediate attention.

Accounts Payable (AP): Money You Owe

Accounts payable is the opposite: money you owe to others. You've received goods or services, you have the bill, and you haven't paid it yet.

If your supplier sent you $1,200 worth of materials on credit and the bill is due in 30 days, that $1,200 is an accounts payable entry. It's a liability on your balance sheet. It represents money you're obligated to pay.

Why AP Management Matters

Paying bills on time keeps your supplier relationships healthy and your credit intact. Paying them too early can hurt your cash flow. The sweet spot is paying on time. Not early, not late.

Late payments can result in late fees, damaged credit terms (your supplier might switch you from Net 30 to COD), and strained relationships. In a market like Kitchener-Waterloo where word gets around, you don't want to be known as the company that doesn't pay on time.

AP Best Practices

• Record bills when you receive them: Not when you pay them. This gives you an accurate picture of what you owe at any point.
• Use the bill payment feature in QuickBooks: Don't just write cheques or make transfers and categorize them as expenses. Enter the bill first, then pay the bill. This keeps your AP balance accurate.
• Schedule payment runs: Pick a day each week or every two weeks to review and pay outstanding bills. Batch processing is more efficient than paying one-offs throughout the week.
• Take early payment discounts: Some suppliers offer "2/10 Net 30", meaning you get a 2% discount if you pay within 10 days. On a $5,000 bill, that's $100 saved. Over a year, it adds up.

How AR and AP Work Together

Your cash flow is the gap between money coming in (AR collections) and money going out (AP payments). If your customers take 45 days to pay you but your suppliers expect payment in 30 days, you have a 15-day gap where you're floating cash.

Good bookkeeping makes this gap visible. When I run monthly reports for clients, I always include AR and AP aging summaries so they can see both sides of the equation. If AR is growing faster than collections, we need to tighten up. If AP is stacking up, we need to plan for a bigger outflow.

Understanding these two numbers (who owes you and who ) is the foundation of knowing where your business actually stands. Not where you think it stands, not where you hope it stands, but where it really is.