Month-End Expense Review for HVAC Business Owners
A practical, data-backed guide to controlling costs and automating expense workflows.
This process can be overwhelming, especially when working with HVAC contractor expense management software. To streamline the process and ensure compliance with tax regulations, it's essential to prioritize financial tasks, take advantage of tax deductions, and avoid common pitfalls that can lead to costly errors. For a complete overview, see our expense management guide.

Business Use Mileage Rates
- 76 cents per mile from July 1 to December 31, 2026
- 72.5 cents per mile for the period of January 1 to June 30, 2026
- 20.5 cents per mile for the period of July 1 to December 31, 2026
- 65.5 cents per mile for 2023
Tax Deductions for HVAC Contractors
As an HVAC contractor, you can deduct various expenses from your taxable income to reduce your tax liability. Here are some key facts to keep in mind:
- The actual expense method for multiple vehicles can yield higher deductions than the standard mileage rate.
- Parts and HVAC units purchased for client jobs are deductible as Cost of Goods Sold (COGS) for self-employed HVAC technicians and 1099 contractors.
- Keep records of mileage, receipts, and other documentation to support your deductions.
- Consult with a tax professional or accountant to ensure you are meeting all the necessary requirements and taking advantage of the deductions available to you.
QBI Deduction Phases and Thresholds
The QBI deduction phases out in phases, with different thresholds for single filers and joint filers.
This phase-out begins on January 1, 2023, and ends on December 31, 2023.
This means that if your taxable income exceeds these thresholds, you will no longer be able to deduct the QBI.
It's essential to note that the QBI deduction phases out in phases, so it's crucial to keep track of your taxable income throughout the year. You can use a calculator or consult a tax professional to determine whether you qualify for the QBI deduction based on your specific situation.
Section 179 Deduction Limits
The Section 179 deduction allows for immediate expensing of qualifying equipment in the year of purchase.
The maximum Section 179 deduction is adjusted annually for inflation.
Tax rules, limits and rates change. Confirm current figures with the IRS or your accountant before you file.
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