Auto Repair Shops, CPA & Tax Services

Why Auto Repair Shops in Dallas Need a CPA Who Knows the Industry

Auto repair shops face a combination of tax and accounting challenges that most general CPAs simply do not handle well. Between tracking hundreds of parts SKUs, collecting the correct Texas sales tax on each line of an invoice, accounting for core charges and warranty reimbursements, and running payroll for technicians on a flat-rate pay system, the margin for error is wide. One miscategorized transaction can trigger a Texas Comptroller audit or cause you to overpay thousands in taxes you never owed.

At AG Freideman, we work with auto repair shop owners across Dallas, Plano, Richardson, and the surrounding DFW suburbs who need a CPA that understands how a shop actually operates. Al Freideman has over 30 years of experience in tax and accounting, and he handles every client personally. No junior staff, no hand-offs. When you call, Al answers. That is why we have 52 five-star Google reviews and zero negative reviews.

Parts Inventory and Core-Charge Accounting: Getting It Right

Your parts inventory is one of the largest assets on your balance sheet, and the IRS expects it to be tracked accurately. If your annual gross receipts exceed $29 million (the threshold set under IRC Section 471(c) for 2026), you are required to use accrual-method inventory accounting. Most independent Dallas repair shops fall below that threshold, but even if you qualify for the simplified method, sloppy inventory records still create problems during an audit or if you ever want to sell the business.

Core charges add another layer of complexity. When a customer pays a core charge on an alternator, starter, or other remanufacturable part, that charge is refundable. It is not the same as revenue from selling a part. If your bookkeeper records core charges as ordinary income, you are overstating revenue and potentially overpaying on federal taxes and Texas franchise tax. We set up your QuickBooks or accounting system so that core charges are tracked in a liability account until the core is returned and the deposit is refunded or forfeited. That way your books reflect reality, and your tax return is accurate.

• Inventory valuation: We reconcile physical counts against your POS or shop management system (Mitchell, ShopWare, Tekmetric) quarterly so your cost of goods sold is accurate at year-end.
• Core tracking: Core deposits are recorded as liabilities, not revenue, until resolved.
• Obsolete parts write-offs: Parts sitting on shelves for 12+ months may qualify for an inventory write-down, reducing your taxable income.

Texas Sales Tax on Parts vs. Labor: Where Shops Get It Wrong

Texas charges sales tax on the sale of tangible personal property (parts, fluids, filters) but does not charge sales tax on most standalone labor. The problem is that auto repair invoices almost always bundle parts and labor together, and the Texas Comptroller has specific rules about how to handle that. The combined state and local rate in Dallas is 8.25% (6.25% state plus 2% city), and collecting the wrong amount in either direction creates liability.

Here is the key rule: when you sell a part and install it, the entire transaction (parts plus installation labor) is taxable because the labor is considered part of the sale of tangible personal property. However, if you perform labor-only services with no parts involved (such as a diagnostic inspection where no repair is made), that labor is generally not taxable. Misclassifying these line items is one of the most common triggers for a Texas Comptroller sales tax audit of auto repair shops.

We review your invoicing system to make sure taxable and non-taxable items are coded correctly, file your sales tax returns on time (monthly, quarterly, or annually depending on your volume), and ensure you are collecting and remitting the correct 8.25% Dallas rate. If you also serve customers in Plano, Frisco, Allen, or McKinney, we verify the correct local rate for each jurisdiction.

Warranty-Work Receivables: Do Not Let Them Sit on Your Books

Warranty reimbursements from manufacturers or extended-warranty companies are revenue, but they often arrive 30 to 90 days after the work is completed. If you are on the cash basis of accounting, you do not recognize that income until you receive payment. If you are on accrual, you recognize it when the work is done. The method you use directly affects your taxable income for the year, and choosing the wrong one (or applying it inconsistently) is a red flag for the IRS.

We also see shops that forget to write off warranty claims that are denied or reduced. If a warranty company pays you $180 on a $250 claim and you never adjust the remaining $70, your books show receivables that will never be collected. Over time, this inflates your balance sheet and distorts your profitability. We reconcile warranty receivables monthly as part of our bookkeeping service so your financials are always clean.

Technician Flat-Rate Payroll: Compliance Without the Headaches

Most auto repair shops pay technicians on a flat-rate (also called “flag hour”) system rather than a straight hourly wage. A tech who is booked at 1.5 hours for a brake job gets paid for 1.5 hours whether the job takes 45 minutes or two hours. This pay structure is legal in Texas, but it creates payroll complexity because you still must ensure each tech earns at least the federal minimum wage ($7.25/hour in 2026) for every hour physically worked. If a slow week means a tech’s flat-rate earnings divided by actual hours worked falls below minimum wage, you owe the difference.

We handle payroll processing for auto repair shops at $300 to $600 per month (bundled with bookkeeping and bank reconciliation), including proper flat-rate calculations, overtime compliance, quarterly 941 filings, and year-end W-2 preparation. Al personally reviews each payroll cycle to make sure your shop stays compliant and your techs are paid correctly.

Auto Repair Shop Tax Mistakes We Fix

After 30+ years of working with small business owners in Dallas, these are the mistakes we see most often when a new auto repair shop client brings us their books:

• Recording core charges as income: This inflates your revenue, increases your self-employment or corporate tax, and raises your Texas franchise tax liability. We reclassify these as liabilities and amend prior returns when the overpayment is significant enough to justify it.
• Collecting sales tax on labor-only invoices: If you charge sales tax on a diagnostic-only service with no parts sold, you are over-collecting. The Comptroller can still audit you for this, and your customers may demand refunds.
• Not collecting sales tax on shop supplies charged to customers: If you add a “shop supplies” or “environmental fee” line item, that charge is generally taxable. Many shops skip collecting tax on it.
• Ignoring the Texas franchise tax: Every Texas LLC and corporation must file a franchise tax report and Public Information Report annually, even if you owe $0. The no-tax-due threshold for 2026 is $2.47 million in total revenue. Missing the May 15 deadline results in penalties, and repeated non-filing can forfeit your entity’s good standing with the Texas Secretary of State.
• Misclassifying techs as independent contractors: If your technicians use your tools, work your hours, and serve your customers, they are employees under IRS guidelines. Misclassification triggers back payroll taxes, penalties, and interest. We help you set up proper W-2 payroll from day one.

What Our Auto Repair Shop Clients Get

We provide full-service tax and accounting support under one roof so you do not need to hire three different providers. Our services for auto repair shops include business tax preparation ($750 to $2,000 depending on entity type and complexity), monthly bookkeeping and payroll ($300 to $600/month), Texas sales tax filing, franchise tax and Public Information Report filing ($250 to $500), and IRS representation ($200/hour) if you receive a notice or audit letter.

Every engagement starts with a free consultation where Al reviews your current setup, identifies problems, and explains exactly what your shop needs. Our pricing is transparent, and the price we quote is the price you pay. Call us at (972) 893-3481 or book a meeting online at agfreideman.com/meeting/ to get started.