October may feel early to think about year-end taxes, but for Massachusetts small business owners, waiting until January can mean losing valuable time to organize financial records and understand what happened during the year.

Businesses in Revere, Chelsea, Everett, Lynn, East Boston, Medford and neighboring Greater Boston communities operate in very different industries, but they often share one challenge: tax preparation becomes considerably easier when the financial records behind the return are organized before the year ends.

Year-end tax planning is not simply about looking for deductions. It is an opportunity to review bookkeeping, income, expenses, payroll records, estimated tax payments and other financial information while there is still time to address incomplete records.

Tax Preparation and Tax Planning Are Not the Same Thing

Tax preparation generally looks backward. A tax professional receives information about a completed year and uses that information to prepare the appropriate returns.

Tax planning can begin earlier.

By reviewing financial information before December 31, a business owner can develop a clearer picture of the company’s activity during 2026 and identify records that may need attention before tax season begins.

This distinction is particularly important for small businesses that have experienced meaningful changes during the year. A business may have hired employees, purchased equipment, changed locations, experienced significant changes in revenue or added new business activities.

Each situation can affect the information required for accurate accounting and tax preparation.

ND Professional Services provides tax preparation and business services for individuals and businesses in Massachusetts. Starting the conversation before year-end gives business owners more time to organize the information needed for the next filing season.

Start With the Quality of Your Bookkeeping

Before discussing taxes, it makes sense to examine the records that will eventually support the tax return.

A business’s books should provide a reasonably clear picture of money coming into the company and money going out. If transactions remain uncategorized, accounts have not been reconciled or business records are incomplete, year-end is an appropriate time to address those issues.

Good bookkeeping is not simply a tax-season exercise.

Throughout the year, bookkeeping can help an owner understand revenue, operating expenses, amounts owed to vendors and money customers still owe the business. Those records also become an important source of information when tax preparation begins.

For a business that has postponed bookkeeping for several months, October provides an opportunity to begin catching up without the pressure of an immediate tax filing deadline.

Review Business Income Before the Year Closes

Business owners should have a reliable method for determining the income the company received during the year.

That sounds straightforward, but businesses increasingly receive money through multiple channels. Depending on the business, revenue may arrive through checks, bank transfers, cards, online payment platforms or other methods.

Accounting records should accurately reflect the business’s actual transactions.

This becomes particularly important when third-party reporting documents are issued after year-end. Waiting until tax documents arrive to begin reconstructing income can make tax preparation unnecessarily difficult.

Organized records provide context for those documents and help the business identify discrepancies that may require further review.

Business Expenses Need Documentation

Expenses are another area where year-end organization matters.

The fact that money left a business bank account does not automatically establish how a transaction should be treated for tax purposes. Records should make it possible to understand what was purchased, why it was related to the business and what documentation supports the transaction.

Receipts, invoices and other records should therefore be maintained in a way that allows transactions to be reviewed later.

The appropriate tax treatment of a particular expense depends on the facts and applicable tax law. Business owners should avoid assuming that every purchase associated with a company is automatically deductible.

Professional tax preparation requires looking at the underlying transaction rather than simply labeling everything a “business expense.”

Do Not Ignore Accounts Receivable and Accounts Payable

Year-end review is also an opportunity to understand what the business is still waiting to receive and what it still owes.

Accounts receivable represent amounts customers or clients owe the business. Accounts payable represent amounts the business owes vendors or other parties.

For businesses that regularly invoice customers, reviewing receivables can reveal old invoices that require attention. Reviewing payables can help ensure that outstanding business obligations are properly recorded.

ND Professional Services includes accounts receivable and accounts payable management among its accounting and bookkeeping services. Integrating this information into regular bookkeeping can provide a more complete picture of business activity than simply looking at the current bank balance.

Payroll Records Should Be Reviewed Before January

Businesses with employees have another important year-end consideration: payroll.

Payroll involves more than issuing checks. Employee compensation, withholding and payroll tax information must be maintained accurately, and year-end reporting depends on the records accumulated throughout the year.

Errors discovered early may be easier to investigate than errors discovered while year-end forms are being prepared.

Business owners should therefore make sure employee information and payroll records are current before the calendar changes to 2027.

The exact filing and deposit requirements that apply to an employer depend on its circumstances, so employers should rely on current IRS and Massachusetts guidance rather than assuming every business follows the same schedule.

Estimated Taxes Can Be Part of the Year-End Review

Some business owners and self-employed taxpayers make estimated tax payments during the year.

For federal estimated tax purposes, the IRS divides the year into four payment periods. For tax year 2026, the fourth federal estimated tax payment is generally due January 15, 2027.

Massachusetts also lists January 15, 2027 as the fourth installment date for 2026 personal estimated taxes.

These dates do not mean that every business owner owes an estimated payment or that every taxpayer should pay the same amount. Estimated tax requirements depend on the taxpayer’s situation.

However, October is an appropriate time to review payments already made and determine whether current-year income has changed substantially from what was anticipated earlier in the year.

Official federal information is available from the IRS Estimated Tax guidance, while Massachusetts taxpayers can consult the Massachusetts Department of Revenue.

Why Local Businesses Benefit From Earlier Preparation

A contractor in Revere may have very different records from a restaurant in Chelsea, a professional service company in Medford or a small retailer in Everett.

Tax planning therefore should not begin with assumptions about what every small business can deduct. It should begin with the actual financial activity of the company.

Reliable books make that analysis possible.

Businesses that organize their records in October, November and December enter tax season with a stronger foundation than businesses that wait until a filing deadline to begin reconstructing the previous year.

Preparing Your Massachusetts Business for 2027

The end of 2026 should be treated as a financial checkpoint rather than simply another tax deadline.

Reviewing bookkeeping, income, expenses, payroll information, receivables, payables and applicable estimated tax payments can help identify missing information before the year closes.

ND Professional Services provides tax preparation, bookkeeping, accounting, payroll and business services for individuals and businesses in Revere and communities throughout the Greater Boston area.

Visit ND Professional Services to learn more about available accounting and tax services.

Tax requirements vary according to the taxpayer, business structure and circumstances. Business owners should consult current IRS and Massachusetts Department of Revenue guidance or an appropriate tax professional before making tax decisions.