The Small Business Expense Guide: What Every Owner Needs to Track

Many small business owners in McAllen and the Rio Grande Valley leave money on the table because they don’t track expenses consistently. When expenses aren’t recorded, three things happen: you overpay on taxes because you miss legitimate deductions, you can’t see your real profit margins, and you’re unprepared if the IRS ever asks questions.

Good bookkeeping starts with knowing what to track. Whether you run a restaurant on 10th Street, a dental practice in Edinburg, or a construction company serving the whole Valley, your expense categories are more similar than you’d think. This guide covers the most common expense categories every small business owner should have in their books.

Operating expenses are the recurring costs that keep your business running. They’re predictable, they happen every month, and they add up faster than most owners realize.

Rent and lease payments — This includes your office space, retail storefront, warehouse, or storage units. For RGV business owners, this is your suite on Nolana, your shop on Business 83, or your commercial lease wherever you operate. Track the full amount monthly.

Utilities — Electricity, water, gas, internet, phone service, and trash pickup. If you work from a home office, a portion of your home utilities may qualify as a business expense — but track them separately and consult a tax professional about the rules.

Insurance — General liability, professional liability, commercial property, workers’ comp, and business auto insurance. These are often paid monthly or annually. Track each policy separately so you know exactly what your coverage costs.

Office supplies and equipment — Everything from printer paper and ink to desks, chairs, computers, printers, and software subscriptions. Small purchases add up fast — $50 here and $30 there can easily total thousands by the end of the year.

Software and subscriptions — Accounting software, point-of-sale systems, email marketing tools, website hosting, cloud storage, and scheduling apps. Many business owners don’t realize how many subscriptions they’re paying for until they list them all out. Do the exercise — you’ll probably be surprised.

If you have employees or hire contractors, payroll-related expenses are likely one of your largest cost categories. Getting this right matters for compliance and for understanding your true labor costs.

Employee wages and salaries — Track gross pay, not just net. The gross amount is the business expense. This is typically the single largest expense for businesses with staff.

Payroll taxes — The employer’s share of Social Security and Medicare, plus federal and state unemployment taxes. These are separate from what’s withheld from employee paychecks — they’re a real cost to the business on top of wages.

Employee benefits — Health insurance contributions, retirement plan matching, and PTO accrual if applicable. These costs are easy to overlook in your monthly expense tracking.

Independent contractor payments — Any contractor paid $600 or more in a calendar year needs a 1099-NEC. Track every payment, collect a W-9 before you pay them, and keep records clean. This is one of the most commonly missed bookkeeping items — and one that can cause real problems at tax time.

Our SmartBooks Growth plan ($500/mo) includes payroll support, so owners don’t have to track payroll tax obligations manually.

Business vehicle use — If you use a vehicle for business, you can track actual expenses (gas, maintenance, insurance, depreciation) or use the IRS standard mileage rate. Either way, you need a mileage log. If you use the same vehicle for personal and business purposes, you’ll need to track the business-use percentage. A simple mileage app on your phone makes this much easier.

Travel — Flights, hotels, meals during business travel, parking, tolls, and rideshares. Each expense must be for a legitimate business purpose. Keep receipts and note the business reason for every trip.

Meals — Business meals with clients, vendors, or employees are typically partially deductible. Track who was present and the business purpose of the meal. Note: deductibility rules change — consult a tax professional for current rules.

For RGV business owners who travel across the border for suppliers or to trade shows in Houston, Dallas, or San Antonio, keeping organized travel records is especially important. A shoebox of receipts won’t cut it if you’re ever audited.

Every dollar you spend getting the word out about your business is a trackable expense. Break them down by channel so you can see what’s actually working:

Online advertising — Google Ads, Facebook and Instagram ads, social media promoted posts, and sponsored content.

Print and local advertising — Flyers, business cards, newspaper ads, event sponsorships, and booth fees. Common for McAllen businesses marketing to the local community.

Website costs — Hosting, domain registration, design, development, and SEO services.

Signage — Storefront signs, vehicle wraps, banners, and yard signs.

Promotional materials — Branded merchandise, giveaways, product samples, and promotional items.

Track each marketing channel separately. When you can see exactly how much you’re spending on Facebook Ads versus flyers versus your website, you can make better decisions about where your marketing budget goes.

Accounting and bookkeeping fees — Yes, the cost of bookkeeping itself is a business expense. Track it. At National Bookkeeping Company®, we handle bookkeeping, payroll, tax preparation, and new business formation under one roof — and every dollar you pay for those services is a trackable business expense.

Legal fees — Business formation costs, contract review, trademark filings, and legal consultations. Whether it’s choosing your business structure or reviewing a commercial lease, these fees are business expenses.

Tax preparation fees — This is separate from your ongoing bookkeeping. If you pay someone to prepare and file your tax returns, that’s a trackable expense.

Consulting and specialized services — IT support, HR consulting, business coaching, and industry-specific compliance consulting.

If your business sells physical products, COGS is different from your operating expenses. It’s the direct cost of producing or purchasing the items you sell — and it directly affects your gross profit margin.

Inventory purchases — Raw materials, wholesale goods, packaging materials, and supplies used in production.

Shipping and freight — Both inbound (getting products to you from suppliers) and outbound (shipping products to your customers).

Manufacturing costs — If you make products yourself, the direct labor and materials that go into production count as COGS.

Tracking COGS accurately is critical because it tells you your real gross margin — how much you actually make per item or per service after direct costs. Many retail shops, restaurants, and product-based businesses in the Valley underestimate how much COGS tracking matters. If you don’t know your true cost per plate, per unit, or per order, you can’t price correctly.

Business loan interest — SBA loans, lines of credit, and equipment financing all generate interest charges. The interest portion is typically deductible as a business expense; the principal repayment is not. You need to track them separately.

Credit card interest — If you carry a balance on a business credit card, the interest charged is a business expense. This is another reason to keep personal and business cards separate.

Equipment financing — Monthly payments on leased or financed equipment like vehicles, machinery, restaurant equipment, or technology.

Clean bookkeeping makes it much easier to get approved for business loans, because lenders want to see organized financial statements. If your books are a mess, you’ll have a harder time proving your business can handle debt.

Estimated quarterly tax payments — Federal estimated taxes paid throughout the year. If you’re not sure when these are due, download our free 2026 tax deadline cheat sheet for the full calendar.

Texas franchise tax — An annual obligation for LLCs and corporations operating in Texas. Due May 15 each year. This is a commonly missed deadline for newer businesses.

Business licenses and permits — City of McAllen business permits, state licenses, industry-specific permits, and health department permits for food businesses. These are real costs and should be tracked as expenses.

Sales tax collected and remitted — If your business collects Texas sales tax, track it separately from your revenue. This is not income — it’s a liability you hold temporarily and remit to the state. Mixing sales tax into your revenue numbers will make your profit look higher than it actually is.