You may have spent 10, 15 or 20 years building your business.

Sales are growing. Customers are loyal. The company is profitable. You finally decide it is time to sell.

Then the buyer’s accountant starts asking questions.

Why does the revenue in the accounting system not match the tax return?

Why are thousands of dollars of personal expenses running through the company?

Are these receivables actually collectible?

Why is inventory worth $300,000 on the balance sheet when some of it has not moved in two years?

What is this large “Due from Shareholder” balance?

Suddenly, the conversation is no longer about how successful the business looks.

It is about whether the buyer can trust the numbers.

That is exactly what financial due diligence is designed to uncover.

The Business Development Bank of Canada (BDC) explains that buyers use due diligence to examine a target company’s finances, legal position, assets and business prospects before completing an acquisition. The process can confirm value—but it can also uncover information that changes how the buyer views the deal or causes the buyer to walk away.

For Canadian business owners preparing to sell, clean accounting is therefore much more than an administrative task.

It can become part of your negotiating power.

Here are eight accounting problems that can weaken buyer confidence, complicate due diligence and potentially reduce the value or attractiveness of your business.

Important: This article provides general information only. Business-sale, accounting and tax outcomes depend on the specific transaction, corporate structure and circumstances. Sellers should obtain professional accounting, tax and legal advice before completing a transaction.

What Does Financial Due Diligence Mean When Selling a Business?

Financial due diligence is the buyer’s detailed investigation of the financial information behind your business.

A buyer is not simply asking:

“Did this company make money last year?”

The buyer wants to know:

Are the reported earnings real?
Are those earnings sustainable?
Is revenue likely to continue after the current owner leaves?
Are assets worth what the balance sheet says they are worth?
Are liabilities missing?
Is enough working capital available to operate the business after closing?
Are taxes properly filed and paid?
Are there unusual related-party transactions?
Will the buyer inherit financial problems after purchasing the company?

BDC specifically recommends that sellers have organized records available for due diligence, including financial statements, contracts, asset information and outstanding or contingent liabilities.

Aterna Advisors also provides advisory support for Canadians buying and selling businesses, including due diligence, transaction planning and seller exit strategy assistance.

The cleaner your financial story is, the easier it becomes for a buyer to understand what they are actually buying.

1. Your Financial Statements Do Not Match Your Accounting Records

One of the fastest ways to make a buyer uncomfortable is to provide numbers that do not reconcile.

Imagine telling a buyer:

“The company earned about $450,000 last year.”

Then the buyer receives:

one number from QuickBooks,
another from your year-end financial statements,
another from your corporate tax return,
and another from an Excel spreadsheet maintained by the owner.

Now every number becomes a question.

Common reconciliation problems include:

Bank accounts that have not been reconciled
Credit cards with unexplained balances
Accounts receivable that do not match customer ledgers
Accounts payable that do not match supplier balances
GST/HST accounts that have accumulated unexplained amounts
Payroll liabilities that have not been cleared
Inventory records that do not agree with the general ledger
Old journal entries nobody can explain
Revenue recorded differently between internal reports and financial statements
Shareholder accounts that have not been reconciled

Buyers want financial information they can follow from source documents to the financial statements.

BDC notes that financial statements, accounts receivable, inventory, equipment and other assets are among the areas buyers should assess during acquisition due diligence.

Aterna’s Accounting & Assurance practice provides financial statement preparation as well as audit, review and compilation services, all of which can help businesses improve the reliability and presentation of financial information.

Why this can affect business value

When buyers cannot rely on historical reporting, they may place less confidence in the earnings figure being used to support the asking price.

Instead of thinking:

“This business earns $450,000.”

they begin thinking:

“How much does this business really earn?”

That uncertainty itself becomes a transaction problem.

What sellers should do

Before putting the business on the market:

Reconcile every major balance-sheet account.
Investigate unexplained historical balances.
Make sure internal financial reports agree with finalized year-end statements.
Prepare supporting schedules for important accounts.
Keep accounting policies consistent between periods where appropriate.
Be able to explain major year-over-year changes.

The goal is not to make the business look perfect.

The goal is to make the numbers defensible.

2. Too Many Personal Expenses Are Running Through the Business

This problem is extremely common in owner-managed companies.

The business may be paying for expenses such as:

Personal vehicles
Family cellphones
Personal travel
Meals unrelated to business activity
Family members performing little or no work
Home expenses
Personal insurance
One-time discretionary purchases

When preparing a business for sale, sellers sometimes argue that these expenses should be “added back” to profit because a new owner will not incur them.

Some adjustments may be legitimate.

But aggressive or poorly documented add-backs can create the opposite result.

Buyers Care About Normalized Earnings

Financial due diligence frequently focuses on determining sustainable or normalized earnings rather than simply accepting reported profit. Canadian financial-due-diligence practitioners commonly analyze sustainable earnings, normalized working capital and financial risks that could affect valuation or closing.

Suppose your financial statements show:

EBITDA: $400,000

You then provide the buyer with adjustments:

Owner vehicle: +$30,000
Travel: +$25,000
Family payroll: +$60,000
Consulting expense: +$35,000
“One-time expenses”: +$80,000

You now claim normalized EBITDA is:

$630,000

The buyer will not necessarily accept every $230,000 adjustment.

They will ask for evidence.

Was the consulting expense really non-recurring?

Will the business need to replace the owner’s role with a paid manager?

Was that travel genuinely personal?

Does the family member actually perform work the buyer will need someone else to do?

The lesson

An add-back should have an economic explanation—not merely an accounting label.

Keep invoices, payroll information, agreements and other evidence supporting material adjustments.

If a large part of your asking price depends on adjusted earnings, expect those adjustments to receive close attention.

3. Revenue Looks Strong, but the Quality of Revenue Is Weak

A company can report impressive sales and still make a buyer nervous.

Consider two businesses.

Business A

Generates $3 million of annual revenue from 600 recurring customers.

Business B

Also generates $3 million—but one customer represents $1.5 million.

The income statement shows the same total revenue.

The risk profile may be very different.

That is why buyers frequently look beyond the top-line sales number.

They may examine:

Revenue by customer
Revenue by product or service
Recurring vs. one-time revenue
Contracted vs. non-contracted sales
Customer concentration
Customer churn
Discounts
Refunds
Revenue recognition
Large year-end sales
Unusual revenue spikes
Sales involving related parties

BDC’s due-diligence guidance emphasizes assessing the target’s financial performance and the underlying business rather than relying on headline numbers alone.

Watch for Revenue That Was Pulled Forward

Suppose a seller normally records $400,000 in monthly sales.

Three months before marketing the business, revenue suddenly jumps to $650,000.

A buyer may ask:

Was demand genuinely stronger?

Or did the company:

Offer unusually large discounts?
Invoice customers earlier than normal?
Record revenue before all obligations were completed?
Push customers to make purchases they would otherwise have made later?

If stronger revenue cannot be explained clearly, the buyer may not consider it sustainable.

What sellers should prepare

A useful seller-side revenue package may include:

Monthly revenue trends
Sales by major customer
Sales by product/service
Recurring revenue analysis
Customer concentration
Major customer contracts
Explanations for unusual periods

Make it easy for the buyer to understand where the revenue comes from and why it should continue.

4. Your Accounts Receivable Are Worth Less Than the Balance Sheet Suggests

Your balance sheet may say:

Accounts Receivable: $500,000

But that does not automatically mean the buyer sees a $500,000 asset.

What if:

$90,000 is more than 120 days overdue?
$40,000 belongs to a customer in financial difficulty?
$25,000 is under dispute?
Several customers have stopped responding?
Credit notes have not been recorded?
Bad debts have historically been understated?

The buyer may conclude that part of the receivable balance is unlikely to become cash.

BDC specifically identifies accounts receivable as an asset buyers should examine during due diligence.

Prepare an Accounts Receivable Aging Report

Before due diligence begins, review receivables by age:

Age	Question to Ask
Current	Is the invoice valid and collectible?
31–60 days	Is this normal for the customer?
61–90 days	Why has payment been delayed?
91–120 days	Is collection becoming uncertain?
120+ days	Should a provision or write-off be considered?

Also identify:

Disputed invoices
Related-party balances
Credits owed to customers
Long-outstanding amounts
Customers that consistently pay late

Do not wait for the buyer to discover an unrealistic receivable balance.

Clean it up first.

5. Your Inventory Is Overstated, Obsolete or Poorly Counted

Inventory can create a surprisingly large disagreement during business-sale negotiations.

The accounting records might show:

Inventory: $750,000

But during due diligence, the buyer discovers:

$100,000 has not sold in three years.
Some products are damaged.
Some items are discontinued.
Physical quantities do not match accounting records.
Products are carried at costs that no longer make sense.
Inventory shrinkage has not been properly recorded.

Suddenly, a $750,000 asset is no longer viewed as $750,000 of economic value.

BDC specifically recommends examining inventory as part of acquisition due diligence.

Slow-Moving Inventory Can Tell a Bigger Story

Obsolete inventory does not only create a balance-sheet problem.

It may also suggest:

Weak purchasing controls
Poor demand forecasting
Declining products
Changing customer preferences
Ineffective inventory management
Cash tied up in products that cannot be sold easily

Before selling, prepare:

Physical inventory counts
Inventory aging
SKU-level movement reports
Identification of obsolete items
Documentation supporting significant inventory values
Consistent costing methods
Reconciliations between physical stock and the general ledger

If obsolete inventory exists, address it before the buyer uses it as a negotiating issue.

6. Your Working Capital Does Not Reflect Normal Business Operations

Working capital can become one of the most misunderstood parts of a private-company sale.

A profitable business still needs sufficient short-term resources to operate.

A buyer may therefore examine items such as:

Accounts receivable
Inventory
Accounts payable
Accrued expenses
Other operating current assets
Other operating current liabilities

Financial due diligence commonly includes an assessment of normalized working capital because abnormal balances can affect the economics of a transaction.

Example: Improving Cash by Delaying Suppliers

Imagine that accounts payable normally average:

$250,000

Several months before closing, the seller delays paying suppliers.

Accounts payable rises to:

$500,000

The company’s bank balance temporarily looks healthier.

But the business has not necessarily created another $250,000 of economic value.

It may simply have delayed paying $250,000 of bills.

A buyer analyzing historical working-capital patterns may identify the change.

Another Example: Letting Receivables Grow

Perhaps revenue is increasing, but customers are taking much longer to pay.

Profit appears strong.

Cash conversion does not.

The buyer may ask how much working capital will actually be required immediately after taking ownership.

Sellers should understand:

Monthly working-capital trends
Seasonal requirements
Receivable days
Payable patterns
Inventory levels
Unusual year-end balances
Significant changes before the proposed closing date

Do not assume the sale price is the only number that matters.

Working-capital discussions can materially affect the economics of a transaction.

7. Unrecorded Tax, Payroll or Other Liabilities Appear During Due Diligence

Nothing makes buyers more cautious than discovering obligations that were not clearly reflected in the financial information they received.

Potential issues can include:

Unfiled corporate tax returns
GST/HST amounts owing
Incorrect GST/HST treatment
Payroll deductions not properly remitted
CRA assessments
Interest and penalties
Employee vacation liabilities
Unrecorded bonuses
Customer deposits recorded incorrectly
Supplier disputes
Pending legal obligations
Leases or guarantees not clearly disclosed

CRA requires businesses to maintain appropriate books and records, including accounting and financial information. Required records and supporting documents generally must be retained for six years from the end of the last tax year to which they relate, subject to specific exceptions.

GST/HST registrants are also responsible for filing required returns and remitting amounts owing, while payroll and GST/HST records must contain sufficient information to support the business’s reporting obligations.

Why Tax Problems Matter to Buyers

A buyer wants to understand whether the company’s historical tax obligations have been properly addressed.

The concern can become especially important when the transaction involves acquiring shares of a corporation, because the buyer is acquiring the corporation itself rather than simply selecting individual operating assets.

The exact exposure depends on transaction structure and legal documentation, so both buyers and sellers should obtain professional tax and legal advice.

Aterna provides corporate tax compliance, tax planning, elections and rollovers, and assistance with federal and provincial tax authorities.

Before starting a sale process, review:

Corporate income tax filings
Notices of Assessment
GST/HST filings and balances
Payroll accounts
CRA correspondence
Instalments
Tax elections
Related-party transactions
Outstanding objections or audits

Finding a tax issue internally gives you a chance to understand and address it.

Having the buyer discover it first gives the buyer a negotiating issue.

8. Shareholder Loans and Related-Party Transactions Are Messy

The buyer opens the balance sheet and sees:

Due from Shareholder: $175,000

Then the questions begin.

What created the balance?

Was it a loan?

Personal spending?

Unpaid dividends?

Advances?

Has it been repaid?

Is interest required?

Are there tax consequences?

A poorly maintained shareholder account can create both accounting and tax concerns.

CRA states that certain loans or debts received because of shareholding can be included in the shareholder’s income under subsection 15(2), subject to specific exceptions and repayment rules.

Related-party accounts can also include:

Loans between commonly controlled companies
Amounts owing to family members
Management fees between related entities
Rent paid to property owned personally by a shareholder
Vehicles owned personally but used by the corporation
Shared employees
Expenses allocated between businesses
Informal loans without documentation

Why Buyers Care

The buyer wants to know which expenses and obligations belong to the business being purchased.

If several companies owned by the seller regularly share expenses without clear documentation, determining the true cost of operating the target company becomes difficult.

Suppose the seller owns:

Operating Company A
Property Company B
Management Company C

Company A pays below-market rent to Company B.

Company C provides management services without charging Company A.

The financial statements for Company A may show excellent profit.

But after the sale, the buyer may need to pay normal commercial rent and hire management staff.

The buyer will therefore try to determine normalized operating costs.

Before selling:

Reconcile shareholder loan accounts.
Document intercompany balances.
Review related-party agreements.
Identify personal expenses.
Establish which employees and assets belong to each entity.
Review whether related-party pricing reflects normal operating economics.
Understand the tax treatment of outstanding balances.

Related-party accounting should tell a clear story before due diligence starts.

How Accounting Problems Can Change a Business Sale

Finding an accounting problem does not automatically mean your deal is dead.

But it can change the negotiation.

BDC notes that due diligence may uncover information that changes a buyer’s view of a proposed acquisition and can even cause a buyer to abandon the transaction.

Depending on the issue and transaction, buyers may seek:

A lower purchase price
Additional information
Adjustments to closing calculations
More protective deal terms
Seller indemnities
Holdbacks
Earn-out arrangements
Resolution of specific problems before closing

The biggest danger is often not that a problem exists.

It is that the buyer discovers something unexpected.

Unexpected problems reduce confidence.

And once confidence falls, buyers often begin questioning areas that previously seemed acceptable.

A Simple Example: How Poor Accounting Can Affect Perceived Value

Assume a seller says the business generates:

Reported EBITDA: $600,000

During due diligence, the buyer identifies:

$50,000 of revenue that appears non-recurring
$35,000 of bad receivables
$30,000 of underestimated ongoing management costs
$40,000 of expenses incorrectly treated as one-time add-backs

After adjustments, the buyer may conclude that sustainable earnings are closer to:

$480,000

If the purchase price was originally negotiated using an earnings multiple, the disagreement is no longer about a few bookkeeping entries.

It can affect the buyer’s entire valuation model.

This simplified example illustrates why clean financial reporting before the sale can be so important.

How to Prepare Your Accounting Before Selling Your Business

A business should ideally become “due-diligence ready” before a buyer asks for documents.

Start with these areas.

1. Clean Up Your Balance Sheet

Review:

Cash
Accounts receivable
Inventory
Prepaid expenses
Fixed assets
Accounts payable
Accruals
Loans
Taxes payable
Shareholder accounts
Intercompany accounts

Every significant balance should have supporting documentation.

2. Review Several Years of Financial Results

Look for:

Unexplained revenue jumps
Margin changes
New expense categories
Missing expenses
Unusual year-end journal entries
Changing accounting methods
Large one-time transactions

A buyer will compare periods.

You should do it first.

3. Document Your Add-Backs

Create a schedule explaining:

Amount
Accounting account
Date
Reason for adjustment
Whether it is genuinely non-recurring
Supporting evidence

Do not present buyers with a giant number labelled:

“Owner adjustments.”

4. Review Tax Compliance

Make sure you understand the status of:

T2 corporate returns
GST/HST
Payroll
CRA correspondence
Instalments
Assessments
Related-party tax matters

Aterna’s tax practice assists private corporations with corporate tax returns, planning and correspondence with tax authorities.

5. Improve the Quality of Your Financial Reporting

Depending on the size of the transaction and the buyer’s requirements, your advisors may recommend improving the level of financial reporting or assurance before going to market.

Aterna provides compilations, review engagements and audits as part of its Accounting & Assurance services.

6. Build a Financial Due-Diligence Folder

Consider organizing:

Historical financial statements
Monthly financial reports
Corporate tax returns
CRA Notices of Assessment
GST/HST records
Payroll records
Bank statements
AR aging
AP aging
Inventory reports
Fixed-asset schedules
Debt agreements
Major customer information
Major supplier information
Forecasts
Budgets
Shareholder and related-party schedules

BDC specifically recommends having financial statements, contracts, asset descriptions and information on outstanding and contingent liabilities readily available when selling a business.

Think Like the Buyer Before the Buyer Arrives

One of the best ways to prepare for a sale is to stop viewing the financial statements as the owner.

View them as a skeptical buyer.

Ask:

If I had never seen this company before, would I understand these numbers?

Then ask:

Can I prove the revenue?
Can I explain the margins?
Can I support the add-backs?
Can I collect the receivables?
Is the inventory worth what the balance sheet says?
Are all liabilities recorded?
Are tax accounts current?
Are shareholder balances clean?
Can I explain unusual transactions?
Do the numbers tell the same story from one year to the next?

If you cannot answer these questions easily, assume a buyer will ask them.

Frequently Asked Questions About Accounting Due Diligence When Selling a Business in Canada

What financial documents will buyers usually request when buying a business?

The exact request depends on the transaction, but buyers commonly review financial statements, tax information, accounts receivable, accounts payable, inventory, assets, liabilities, contracts and other documents needed to understand the financial condition of the business. BDC specifically identifies financial statements and major asset and liability information as important due-diligence materials.

Can messy bookkeeping reduce the value of my business?

It can.

Messy books do not automatically mean a business is worth less, but unreliable financial information can make it harder for buyers to verify sustainable earnings, assets and liabilities. That uncertainty may affect negotiations, transaction terms or the buyer’s willingness to proceed.

What are add-backs when selling a business?

Add-backs are adjustments used when analyzing earnings to identify expenses or other items that may not continue under new ownership.

Examples might include certain non-recurring costs or genuine owner-specific discretionary expenses.

However, buyers normally evaluate whether each adjustment is reasonable and supported rather than accepting every proposed add-back automatically.

Should I clean up my books before listing my business for sale?

Yes.

Reconciliation and preparation before due diligence can make it easier to answer buyer questions, identify problems internally and present a clearer financial picture.

BDC recommends organizing records before entering a business-sale process.

Why are accounts receivable important during due diligence?

Receivables represent amounts customers owe the business.

A buyer may examine aging, collectibility, disputes, bad-debt history and customer payment patterns to determine whether the recorded asset is likely to convert into cash. BDC includes accounts receivable among the assets that should be examined during acquisition due diligence.

Why does inventory matter when selling a business?

Inventory can represent a significant portion of a company’s working capital and assets.

Buyers may therefore want to understand physical quantities, costing, turnover, obsolete products and whether book values accurately represent usable inventory. BDC includes inventory in its list of areas buyers should assess during due diligence.

Can tax problems affect a business sale?

Yes.

Unresolved tax matters may create additional questions about liabilities, cash requirements and transaction structure. CRA requires businesses to maintain records supporting their tax obligations, while GST/HST registrants have ongoing filing and remittance responsibilities.

What should I do with a shareholder loan before selling my company?

Have the balance reviewed before the transaction.

The accounting records should clearly explain how the balance arose, whether repayments occurred and what tax treatment applies. Canadian shareholder-loan rules can create income inclusions or other tax consequences in some circumstances.

Your Business May Be Stronger Than Your Accounting Makes It Look

A profitable company can lose negotiating power when its financial records are difficult to understand.

And a smaller company with clean, consistent and well-supported financial reporting may give buyers much greater confidence.

When preparing to sell, do not focus only on increasing revenue in the months before the transaction.

Focus on making the financial history credible, explainable and easy to verify.

Clean up old balances.

Review receivables.

Count inventory.

Document add-backs.

Reconcile shareholder accounts.

Review tax compliance.

Understand normalized working capital.

And make sure you can explain where your profit really comes from.

Aterna Advisors supports business owners through the process of buying or selling a business and specifically provides seller-focused guidance aimed at helping owners plan a successful exit strategy. The firm also provides accounting, assurance, financial reporting, tax and business advisory services that can support transaction readiness.

Planning to sell your business? Review the accounting before the buyer does. Identifying problems early can give you more time to correct them, explain them and enter due diligence with stronger financial information.