How to Fill Out an Accounts Receivable Aging Schedule 

Managing accounts receivable is more than keeping track of who owes you money. It’s a tool for protecting your cash flow and identifying issues before they become problems. One of the most effective ways to do this is by using an accounts receivable aging schedule. 

At Porter Capital, we work with businesses every day who want to improve their financial operations or prepare for invoice factoring. One of the first things we ask for is an aging schedule. If you’re not sure how to build one or how to use it effectively, this guide walks through the basics and explains how it can support stronger financial decision-making. 

If you own a company, getting paid by your customers or clients is important if you want to keep your doors open. While some clients pay on time, some tend to run behind. Keeping track of who pays and when is crucial to make sure you are fairly compensated for your work and can take action to try to recover any money owed.

An aging schedule is one accounting tool that can help you determine which accounts receivable are overdue, how long they’ve been that way and how much you’re owed. Having this information in hand empowers you to make important decisions about what to do next to protect the future of your company.

What Is an Aging Schedule?

An accounts receivable (A/R) aging schedule is an accounting table listing the accounts receivable for a company organized by due date. This table is usually available as part of an accounting software package, though you can also create it in a simple spreadsheet yourself.

The aging schedule lists details for each account receivable for a company, including the customer’s name, the amount due and how long an invoice has been overdue.

A simple A/R aging schedule will usually have the names of clients or customers down the right hand of the chart, accompanied by the amount they owe. Along the top of the chart will be the time frame the company wants to track. The report typically breaks them down into categories such as: 

• Current (still within payment terms) 

• 1 to 30 days past due 

• 31 to 60 days past due 

• 61 to 90 days past due 

• Over 90 days past due 

This schedule gives business owners a clear view of which invoices need attention. It’s a simple concept, but when done regularly and accurately, it becomes one of the most important financial tools you can use. 

How is an Aging Schedule Used? 

To Spot Cash Flow Issues Early 

A consistent buildup of overdue invoices, especially in the 61 to 90+ day range, can indicate a growing cash flow problem. Even strong companies can run into trouble if payments are delayed. When you’re not getting paid, you might have to hold off on payroll, delay supplier payments, or miss out on new business opportunities. 

An aging schedule shows you where money is stuck and which clients are slowing you down. Knowing this can help you make adjustments before you feel the impact on operations. 

To Evaluate Your Credit Policies 

If a large portion of your receivables are overdue, it might be time to reassess your credit policy. Maybe the terms are too lenient. Maybe your customers are confused about expectations. Or maybe it’s time to require deposits or shorter payment terms for new projects. 

An aging report gives you the data to support those decisions. If certain customers repeatedly miss due dates, it may also highlight areas where your collections process needs to be more consistent. 

To Refine Your Collections Strategy 

Not every late invoice should be handled the same way. Some clients are reliable but miss the occasional payment due to internal delays. Others are routinely 60 or 90 days behind with no explanation. 

Use the aging schedule to prioritize collections. A well-paying client might just need a reminder. A customer who is always in the last column may require more aggressive follow-up or a change in your working relationship. 

To Understand Credit Risk 

When extending credit, businesses generally deal with three types of customers: those who pay on time, those who are slow but eventually pay, and those who simply don’t. 

The aging schedule helps you tell the difference. If one customer consistently shows up in the over 90-day column, it’s a warning sign. They might be experiencing financial difficulty, or they may not be prioritizing your invoice. Either way, it’s time to reassess whether they should continue to receive credit or if it’s worth doing business with them at all. 

The Importance of Creating an Aging Schedule

You need to make money for your offerings in order to pay your team and keep providing goods or services. When clients do not honor their payments, it can have a domino effect:

• You spend more time chasing overdue accounts, and less time growing your company.
• You may experience cash flow problems, which may limit the new opportunities you may feel you can take on.
• If you take on debt to cover cash flow problems, you will now be paying interest, which leads to even greater financial challenges.

Nonpayment can hurt your business. Unfortunately, the longer a customer or client doesn’t pay you, the more cash flow problems you may face. In addition, the less likely it is that the account will eventually be paid in full.

An A/R aging schedule lets you spot trends so you can stop working for nonpaying clients and act to reduce your number of delinquent accounts. If a customer has failed to pay on time the past three times you’ve worked together, for example, you may consider halting further work until that company can pay in full. You may even start evaluating client credit scores before working with new customers to help prevent the same problem in the future.

Many companies create aging schedules for internal review. In some cases, investors and lenders may ask to see a company’s A/R aging schedules to evaluate its financial position, operational health and working capital management. In these cases, an aging schedule can determine whether a company gets a loan or funding. Auditors can also ask to see a company’s aging schedule to estimate how much a firm’s receivables are worth.

Many companies with unpaid accounts receivable choose to work with a factoring company for funding to improve cash flow. If you decide on this course of action, a factoring company will use your aging schedule to determine your factoring rate.

Why the Aging Schedule Matters 

It Simplifies the Factoring Process 

Invoice factoring is one of the fastest ways to unlock working capital. When businesses work with Porter Capital to factor their invoices, one of the first things we review is the aging schedule. 

It tells us how recent your receivables are and helps us calculate your factoring rate. Clean, accurate schedules speed up the process and help you get funded faster. 

It Helps Calculate Bad Debt Allowance 

When customers don’t pay, those invoices eventually become bad debt. Businesses that offer credit should always plan for a percentage of receivables to go unpaid. 

Your aging schedule helps estimate what that percentage should be. The longer an invoice goes unpaid, the less likely it is to be collected. In most cases, anything over 90 days is considered at risk of becoming bad debt. 

This information not only helps with financial forecasting but can also provide a clearer view of your actual assets and liabilities. 

It Helps You Identify Reliable Customers 

By comparing current and past aging reports, you can quickly identify which customers pay consistently and which do not. 

A client who usually pays within 30 days but is currently late might be going through a temporary issue. But if you notice a pattern across several months, it might be time to reconsider the terms you’re offering or the value of keeping them as a customer. 

Reliable customers are critical to stable operations. The aging schedule helps you recognize and prioritize those relationships. 

It Improves Timing for Collections 

Some clients always pay during a specific window. Reviewing multiple reports might reveal that a customer tends to pay around the 12th of every month, regardless of due date. 

With that insight, your team can plan reminders more strategically. That way, you’re improving cash flow without straining client relationships. 

An Example of an A/R Aging Schedule

Let’s look at an example:

This chart shows $136,000 in total is outstanding. It also shows that half of the invoices are more than two months past due.

Accounting software can create an aging schedule for you, but learninghow to fill out an A/R aging schedule yourself is simple:

• Write down the names of every customer or client with an outstanding invoice.
• Next to each client, write down the total amount of invoices and accounts receivable due.
• Indicate how far past due each amount owed is on the schedule.

You can also create a total amount due column or calculate the percentage of accounts overdue by three months, 61-90 days and so on.

How to Use the Aging Schedule to Strengthen Your Business 

Unfortunately, not all accounts receivable are paid on time. Clients and customers may miss or forget about an invoice, or they may be unable to pay. Missed payments can have a direct impact on your business and your ability to serve other customers.

Getting a loan to cover expenses in this situation can be less than ideal. You need excellent credit to get credit from a bank, and the process is often involved and lengthy. You may not be able to get the money you need in time to make payroll or pay your own company bills.

Porter Capital offers funding for all the ways you do business. Our accounts receivable financing and invoice factoring services allow you to receive immediate funds for outstanding invoices, which can help you limit cash flow issues. Also known as AR financing, this solution is used by companies across many industries. Unlike a form of equity, AR financing does not require a dilution of ownership, and unlike a loan, it will not negatively impact your balance sheet.

Our team has over 30 years of experience and can offer funding quickly, often within 24 hours. We fund up to 85-95% of the invoice value, minus our 1-3% fee. We’re always fully transparent about costs and available to answer all your questions — the company owner is in the office every day to give our clients full confidence in our commitment to their operations.

Porter Capital offers additional free services as well, including cash posting, full collections and a credit department. If an aging schedule has shown you may be facing a cash flow challenge, contact Porter Capital to review your options.