The Late-August Bookkeeping Tune-Up: 4 Ways to Get Ahead Before Q4 Hits
Late August is a helpful time to pause and review your books.
The year is more than halfway complete. Q4 is approaching. You still have time to correct small issues before they become year-end problems.
I recommend a simple bookkeeping tune-up before September begins. You do not need to rebuild your entire system. You need a clear look at what is working, what needs attention, and what habits will make the rest of the year easier.
This checklist focuses on four practical steps:
Review your mid-year profit and loss statement.
Clean up accounts receivable.
Check cash flow, bills, and financial records.
Set up simple habits before Q4.
The goal is straightforward: clean books, better decisions, and less stress.
1. Review your mid-year profit and loss statement
Your profit and loss statement shows how your business is performing over a specific period. It lists your income, expenses, and resulting profit or loss.
Before Q4 begins, I suggest running a year-to-date P&L. Depending on when you complete this review, that may cover January through July or January through August.
Do not review the report as a collection of numbers. Use it to ask simple business questions.
Look at your income
Start with total revenue. Then review income by service, product, location, or customer group if your bookkeeping system tracks those details.
Ask yourself:
Is revenue close to your original budget?
Which services or products are performing best?
Are there noticeable changes from last year?
Is one month unusually high or low?
Are any sales missing from the books?
A strong revenue month is useful information. So is a slow month. Both help you plan the final quarter with more confidence.
Review your expenses
Next, review your largest expense categories. Common examples include payroll, rent, software, advertising, supplies, insurance, and professional services.
Look for:
Expenses that increased without a clear reason.
Recurring subscriptions you no longer use.
Transactions assigned to the wrong category.
Personal expenses mixed with business expenses.
Missing receipts or supporting documents.
Duplicate charges.
One unusual transaction does not always mean something is wrong. It may reflect a seasonal purchase or a planned investment. The important thing is to understand the difference between a normal change and a bookkeeping error.
Compare actual results with your plan
If you created a budget at the beginning of the year, compare it with your actual results. You can also compare this year with the same period last year.
Focus on trends rather than perfection.
For example:
Revenue may be lower, but profit may be higher because expenses are better controlled.
Sales may be growing, but cash may feel tight because customers are paying slowly.
One service may generate strong revenue but require too much time or expense.
Marketing costs may have increased while producing more valuable customers.
A mid-year review gives you time to respond. You can adjust spending, update pricing, focus on profitable work, or change your Q4 forecast while the year is still in progress.
2. Clean up accounts receivable
Accounts receivable is the money customers owe your business.
A healthy sales report does not always mean a healthy cash position. If invoices remain unpaid, your business may be working hard without receiving the cash it needs.
Late August is a good time to run an aged accounts receivable report. This report groups unpaid invoices by how long they have been outstanding.
You may see categories such as:
Current.
1–30 days overdue.
31–60 days overdue.
61–90 days overdue.
More than 90 days overdue.
Review each older balance. Confirm that the invoice is accurate, the customer received it, and the payment was not recorded somewhere else.
Check for common errors
Before contacting a customer, look for simple bookkeeping issues:
A payment was received but applied to the wrong invoice.
An invoice was entered twice.
A credit was issued but not applied.
A customer paid through a payment processor that has not synced correctly.
The invoice was sent to an outdated email address.
The balance is no longer collectible and needs professional review.
A clean receivables report helps you separate real outstanding balances from records that need correction.
Create a calm follow-up process
For valid unpaid invoices, use a consistent follow-up process. Send a polite reminder with the invoice attached or include a statement showing the open balance.
You can also review your payment terms before Q4:
Are due dates clear?
Do invoices include convenient payment options?
Do you request deposits for larger projects?
Do you have a written process for overdue accounts?
Are customers receiving invoices promptly?
The purpose is not to create pressure. It is to make payment expectations clear and consistent.
If you are unsure how to handle a potentially uncollectible balance, speak with your tax professional before writing it off. The correct treatment can depend on your accounting method and business circumstances.
For more general bookkeeping checklist ideas, QuickBooks offers a small business accounting checklist.
3. Check cash flow, bills, and financial records
Profit and cash are not the same thing.
Your P&L tells you whether your business earned a profit during a period. Your cash flow tells you what money is available for payroll, bills, taxes, inventory, and other needs.
Before Q4, I recommend reviewing three areas.
Review accounts payable
Accounts payable is the money your business owes to vendors and suppliers.
Run an aged payables report. Confirm that all bills are accurate and that no invoice has been entered twice. Then review upcoming due dates.
This helps you:
Avoid late fees.
Protect vendor relationships.
Plan large payments.
Identify bills that need approval.
Understand your cash needs for September and Q4.
Reconcile your accounts
Your bank, credit card, payment processor, payroll, and accounting records should agree.
Reconcile each account through the latest available statement. Investigate missing transactions, duplicate entries, unusual transfers, and unreconciled items.
Also check that your bookkeeping software is syncing correctly with your point-of-sale system, ecommerce platform, payroll provider, or payment processor.
A report is only useful when the underlying records are complete.
Review your balance sheet
Your balance sheet provides another important view of your business. It shows assets, liabilities, and equity.
Pay attention to:
Bank balances.
Credit card balances.
Loans and other liabilities.
Accounts receivable.
Inventory, if applicable.
Owner draws or contributions.
Unusual balances in suspense or “ask my accountant” accounts.
If an account has carried the same unexplained balance for several months, add it to your cleanup list. Small corrections now can make year-end reporting much smoother.
You can also review the month-end bookkeeping checklist from Wave for additional closeout ideas.
4. Set up simple habits before Q4
A clean August review is helpful. A repeatable routine is even better.
Q4 often brings more sales activity, larger expenses, year-end purchases, holiday schedules, and tax planning conversations. The best time to create order is before things become busy.
Start with a short weekly routine:
Once a week
Upload or forward receipts.
Review new bank and credit card transactions.
Send outstanding invoices.
Check for customer payments.
Record business expenses while they are still easy to identify.
Once a month
Reconcile all accounts.
Review your P&L.
Review accounts receivable and accounts payable.
Check your cash position.
Save important statements and reports.
Make a note of unusual transactions.
Before September begins
Finish entering summer transactions.
Resolve old bookkeeping questions.
Update your Q4 budget or forecast.
Confirm upcoming payroll and tax obligations.
Organize contracts, receipts, and invoices.
Schedule a financial review if you need guidance.
A simple late-August bookkeeping checklist
Use this quick list to keep the process manageable:
Record all transactions through the current month.
Reconcile bank, credit card, and payment processor accounts.
Run a year-to-date profit and loss statement.
Compare actual results with your budget and prior year.
Review unusual income or expense changes.
Run an aged accounts receivable report.
Follow up on valid overdue invoices.
Review accounts payable and upcoming bills.
Check your balance sheet for unusual balances.
Update your Q4 budget and cash flow forecast.
Organize receipts, invoices, and financial documents.
Set a weekly bookkeeping routine for September and beyond.
You do not have to do it all at once
Bookkeeping becomes easier when you work through it in a clear order.
First, make sure the records are complete. Then reconcile the accounts. Next, review the reports. Finally, use what you learn to plan the next few months.
If your books are behind or the reports do not make sense, you do not need to sort through everything alone. At Jenni’s Business Services, I help small business owners maintain accurate books, understand their financial reports, and move forward with a clear plan.
You can learn more about our services, explore our business resources, or book a conversation.
A late-August tune-up does not need to be complicated. With a few focused reviews and simple habits, you can enter Q4 with cleaner records, better visibility, and more peace of mind.
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