Bookkeeping for Trucking Companies in Montana: A Practical Guide

Generic bookkeeping often groups most operating costs into broad categories such as vehicle expense or repairs. That may be enough to produce a basic tax return, but it does not tell an owner which truck is profitable, whether a route is underpriced, or how much cash should be reserved for maintenance. Trucking companies need financial records that reflect how the business is actually managed.

Revenue should be separated into useful categories such as linehaul, fuel surcharge, accessorial charges, detention, layover pay, and other services. If a broker or factoring company deducts fees before depositing funds, the books may need to record gross revenue and the related fees separately rather than treating the net deposit as total income. The correct presentation depends on the underlying agreements and should be reviewed with a tax professional.

Expenses also need meaningful detail. Fuel, repairs, tires, insurance, permits, tolls, dispatch fees, factoring costs, driver compensation, trailer costs, and communication expenses should not disappear into one general account. Clear categories make tax preparation easier, but their greater value is helping the owner make better operating decisions throughout the year.

A trucking chart of accounts should be detailed enough to support decisions without becoming impossible to maintain. Separate accounts for fuel, routine maintenance, major repairs, tires, insurance, permits, licenses, tolls, scales, parking, truck washes, electronic logging services, and professional fees are usually more useful than a single vehicle expense category. The exact setup should match the company’s size and the reports management actually uses.

Equipment purchases and loan payments require special attention. Buying a truck or trailer is generally not recorded as an immediate operating expense. The asset and related loan belong on the balance sheet, while interest is normally separated from principal. Depreciation is then handled under the applicable tax and accounting rules. Recording an entire loan payment as an expense can materially overstate expenses and leave the balance sheet inaccurate.

Tracking by truck, trailer, driver, terminal, or business segment can add another layer of insight. Accounting software may use classes, locations, projects, or custom fields for this purpose. A one-truck owner-operator may not need extensive tracking, but a growing fleet should be able to compare units without rebuilding months of records in a spreadsheet.

Cost per mile is one of the most useful numbers in a trucking business. Start with total miles, not just paid miles. Deadhead miles still consume fuel, driver time, tires, maintenance capacity, and equipment life. Comparing paid miles with total miles also shows whether dispatch decisions are creating too much unproductive travel.

Variable costs commonly include fuel, driver pay tied to miles or loads, tolls, and mileage-related maintenance. Fixed or semi-fixed costs may include truck payments, insurance, permits, office expenses, software, and salaried administrative labor. Owners should also account for less frequent costs, including tire replacement, major engine work, deductibles, and eventual equipment replacement. Ignoring those costs can make a marginal load appear profitable.

Cost per mile should be reviewed together with revenue per total mile and revenue per paid mile. A load offering an attractive headline rate may be weak after deadhead, broker fees, waiting time, and the return trip are considered. These calculations do not need to be perfect to be valuable. Consistent numbers based on reconciled records are more useful than precise-looking estimates built from incomplete data.

Interstate carriers may need mileage and fuel records for programs such as the International Fuel Tax Agreement and the International Registration Plan. Depending on the vehicles and operations involved, federal highway use tax filings may also apply. These requirements are separate from ordinary income tax bookkeeping, but they rely on many of the same source documents.

Fuel receipts should identify the date, location, quantity, amount, and vehicle whenever possible. Mileage records should be complete enough to support travel by jurisdiction, including loaded and empty miles. Fuel card reports, electronic logging data, dispatch software, and accounting records should be reconciled rather than treated as unrelated systems. Missing unit numbers or inconsistent dates can create substantial cleanup work later.

The amounts recorded in the general ledger should also agree with filed fuel tax reports and payments. Differences may come from timing, personal purchases, duplicate imports, credits, or transactions assigned to the wrong truck. Carriers should confirm the filing rules and record-retention requirements that apply to their routes, vehicles, and jurisdictions instead of assuming one system covers every obligation.

Driver compensation is often one of a carrier’s largest costs. Payroll records should distinguish regular compensation, mileage pay, load-based pay, reimbursements, bonuses, benefits, and deductions. Payroll liabilities must also be reconciled so that tax withdrawals and payments do not remain incorrectly recorded as unexplained expenses or uncategorized transactions.

Calling a driver an independent contractor does not automatically make that classification correct. Federal and state agencies look at the actual working relationship, including control, independence, equipment, financial risk, and how the work is performed. A written agreement is helpful evidence, but it does not override the facts. Misclassification can lead to payroll tax assessments, wage claims, penalties, and amended filings.

Owner payments depend on the business’s tax structure. A sole proprietor generally handles draws differently from an S corporation owner who performs services for the company and may have payroll obligations. Personal spending should not be mixed casually with business expenses. Owner draws, distributions, reimbursements, payroll, and business purchases should each be recorded according to what they actually represent.

Each month, reconcile every bank account, credit card, fuel card, equipment loan, and factoring account. Match deposits to settlement statements, review unpaid customer invoices, and investigate negative or unusually high expense balances. Loan statements should be checked to confirm that principal and interest were separated correctly. Balance-sheet accounts deserve the same attention as the profit and loss statement.

Next, review operating reports by truck or business segment. Compare revenue, fuel usage, maintenance, driver costs, total miles, and cost per mile. Look for trucks with repeated downtime, routes with excessive deadhead, customers that pay slowly, or fuel costs that differ sharply between similar units. These operational questions are where bookkeeping becomes a management tool instead of a year-end chore.

Cash planning should include upcoming insurance installments, annual permits, tax payments, debt service, payroll, and a realistic maintenance reserve. Accounting profit does not always equal available cash, particularly when a company is paying loan principal or waiting for customers to pay. Conversely, depreciation may reduce taxable income without producing a current cash outflow. Owners should review both cash flow and taxable profit before making large purchases or distributions.

A consistent monthly close also makes tax preparation less disruptive. Instead of reconstructing an entire year from fuel card statements and bank deposits, the company can provide reconciled reports, equipment purchase documents, loan balances, payroll records, and mileage information. Marlow Accounting offers bookkeeping starting at $300 per month, with the final scope depending on transaction volume, payroll needs, number of accounts, and the amount of unit-level reporting required.

This article is general information and is not tax, legal, or accounting advice for your specific situation. Trucking tax, payroll, licensing, fuel tax, and recordkeeping requirements can vary based on your vehicles, routes, business structure, employees, and the states where you operate.

For help setting up or cleaning up your trucking company’s books, call Marlow Accounting at (406) 290-1214 or schedule a free consultation. Cory Marlow is an IRS Enrolled Agent federally licensed by the U.S. Treasury, and Marlow Accounting serves small businesses from its office in Billings, Montana.