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Giovanni Rossi

Is car fuel & maintenance a direct cost or indirect expense for my work truck?

So I run my own construction business and I'm trying to figure out the right way to handle my expenses for tax purposes. I have a Ford F-150 that I use pretty much 100% for work - hauling materials, driving to job sites, etc. I've got a separate Subaru that I use for personal stuff. When I'm entering everything into my accounting software, I'm confused about how to categorize the gas, oil changes, and other maintenance for the truck. Should I be putting these down as direct costs for specific jobs or just general overhead expenses that I can deduct? I track my mileage already, but I want to make sure I'm handling the actual fuel and maintenance expenses correctly on my taxes. Does it matter whether I list them as direct or indirect costs? Will it affect my deductions? The truck is definitely a business vehicle, I'm just not sure about the right way to categorize these specific expenses.

Great question about categorizing your vehicle expenses! For a self-employed construction business owner like yourself, there are two main ways to handle your work truck expenses: 1. Standard Mileage Rate: If you choose this method, you deduct a set amount per business mile driven (65.5 cents per mile for 2023), and that's meant to cover ALL vehicle costs including gas, maintenance, depreciation, etc. With this method, you wouldn't separately deduct fuel or maintenance costs. 2. Actual Expenses Method: Here you'd track all actual costs of operating the vehicle (fuel, maintenance, insurance, depreciation) and deduct the business percentage. Since your truck is used 100% for business, all these expenses would be deductible. As for direct vs. indirect - it depends on how you bill your clients. If you charge clients for travel to their sites or include vehicle costs in your job pricing, they could be direct costs. Otherwise, they're typically considered indirect overhead expenses.

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What if I've been using standard mileage rate for the last couple years but want to switch to actual expenses? Is that allowed or am I stuck with whatever method I chose first?

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If you initially used the standard mileage rate on a vehicle you own, you can switch to the actual expenses method in a later year. However, there's an important restriction: if you used standard mileage in the first year you used the vehicle for business, you can switch to actual expenses later, but if you used actual expenses in the first year, you cannot switch to standard mileage later for that same vehicle. When switching methods, remember that depreciation calculations get complicated because prior years of standard mileage include built-in depreciation. You might need a tax professional to help with those calculations to avoid claiming too much depreciation.

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Just wanted to share my experience - I was in exactly the same situation with my landscaping business and the gas/maintenance costs for my work truck were stressing me out at tax time. I found this AI tool at https://taxr.ai that analyzes all your vehicle expenses and tells you the optimal way to categorize them. It saved me hours of headaches and actually found expenses I was missing. It looks at your business type, vehicle usage patterns, and expense history to recommend whether each cost should be direct or indirect, plus it can tell you whether standard mileage or actual expenses would be better in your situation. Total game changer for self-employed folks with vehicles.

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Does this thing actually work with construction businesses specifically? I'm in the same industry as OP and have different types of vehicles (pickup and a van). Can it handle multiple vehicles?

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I'm kinda suspicious about these AI tools tbh. How does it actually get the data? Do I have to give it access to my bank accounts or something? Seems risky to me.

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It absolutely works for construction businesses - actually has specific categories for construction vehicle usage patterns that recognize the difference between regular job site travel versus hauling materials or equipment. And yes, it handles multiple vehicles with different business-use percentages. For your question about data security, you don't need to connect any bank accounts. You can either upload expense receipts/records or manually enter your vehicle information. It's designed to analyze the information you provide without requiring sensitive account access. I was skeptical at first too, but it just processes what you give it rather than connecting to financial accounts.

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Just wanted to follow up - I actually tried the taxr.ai tool mentioned above and it was surprisingly helpful. It analyzed my truck expenses and showed me I'd been miscategorizing some maintenance costs that should have been direct expenses tied to specific jobs. The report it generated showed I could save almost $1,200 more on my taxes by optimizing how I categorize these expenses! The system recommended I switch from standard mileage to actual expenses for my main work truck given how much I spend on maintenance and fuel. Didn't realize this could make such a big difference. Definitely worth checking out if you're tracking vehicle expenses.

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Another option to consider is getting help from the IRS directly. I know, I know, sounds impossible to actually reach a human being there. I was on hold for HOURS trying to get clarification on vehicle deductions until I found https://claimyr.com - they got me connected to an actual IRS agent in under 20 minutes. You can see how it works here: https://youtu.be/_kiP6q8DX5c The agent was able to tell me exactly how to categorize my vehicle expenses based on my specific situation, which was super helpful since I also use my truck for my business. For construction businesses they have specific guidelines about when fuel costs are considered direct vs. indirect.

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Wait how does this even work? I thought it was impossible to get through to the IRS. Is this just paying someone to wait on hold for you? Seems like something I could just ask my tax guy.

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Yeah right. No way this actually gets you through to the IRS faster than waiting on hold yourself. Sounds like a scam to me. The IRS phone system is notoriously terrible - if there was a "secret way" to get through, everyone would be using it.

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It's not someone waiting on hold for you - they use a system that navigates the IRS phone tree and secures your place in line, then calls you when an agent is about to be available. It's completely legitimate and saves you from being stuck on hold for hours. While you could ask your tax professional, getting direct confirmation from the IRS gives you documentation that you followed their guidance, which can be valuable if you're ever audited. And unlike paid tax professionals who might give generic advice, the IRS agent can access your specific tax account and provide guidance based on your actual filing history.

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Well I have to eat my words. I tried the Claimyr service because I was desperate to get an answer about vehicle depreciation for my business, and it actually worked exactly as advertised. Got connected to an IRS agent in about 15 minutes when I had previously spent over 2 hours on hold and gave up. The agent explained that for construction businesses, fuel and maintenance can be categorized as direct costs if you can tie them to specific jobs (like if you track mileage between job sites or fuel up specifically for a job). Otherwise, they're indirect costs, but both are fully deductible either way if the vehicle is 100% business use. Saved me tons of confusion and the agent even emailed me documentation to back it up.

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I've been doing construction for 20+ years and here's what my accountant has me do: keep a detailed mileage log for the year (there are good apps for this) and also keep ALL receipts for gas, repairs, insurance, etc. At tax time, we calculate both methods (standard mileage vs. actual expenses) to see which gives the bigger deduction. Some years when I had major repairs, the actual expenses method worked better. Other years when the truck ran smoothly, standard mileage gave me more. You're allowed to switch methods year to year as long as you started with standard mileage in the first year you used the vehicle for business.

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Do you actually track which job sites you're driving to each day? My accountant says I need that level of detail but it's such a pain when I'm going to multiple sites.

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Yes, I track each job site visit in detail. I use the MileIQ app which makes it pretty simple - just swipe right for business trips and add the client/job site name. At the end of the week, I spend about 10 minutes cleaning up any trips I missed. For multiple job sites in one day, I log each segment separately (office to site A, site A to site B, etc.). It's a bit tedious at first but becomes habit, and the tax savings are absolutely worth it. During an audit years ago, the IRS accepted my mileage log without question because it had this level of detail, while they rejected some other deductions I had taken.

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Has anyone here actually gotten audited for vehicle expenses? I've been using standard mileage rate for years but honestly my record keeping isn't great. Sometimes I forget to log trips or lose gas receipts. Starting to worry this could bite me someday.

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I got audited in 2019 specifically for vehicle expenses. They wanted proof my truck was used "exclusively" for business like I claimed. Without a mileage log, I lost about 40% of my deductions. Now I use an app that automatically tracks all my driving and I categorize trips daily. Learned my lesson the hard way.

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One thing nobody has mentioned - if your truck is over 6,000 lbs gross vehicle weight (most F-150s qualify), you might be eligible for Section 179 expensing which lets you deduct a big chunk of the purchase price in year 1. This is separate from the direct vs indirect cost question, but definitely worth looking into if you bought your truck recently.

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I did actually take the Section 179 deduction when I bought the truck last year! That was a huge help with my taxes. Does that affect whether I should be using standard mileage vs actual expenses going forward? My CPA set that up but didn't really explain how it impacts future years.

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If you already took Section 179 on your truck, you cannot use the standard mileage rate for that vehicle. Taking the Section 179 deduction means you've already deducted a large portion of the vehicle's cost upfront, so you must use the actual expenses method going forward. With actual expenses, you'll deduct all operating costs (fuel, maintenance, insurance, remaining depreciation) based on business use percentage. Since your truck is 100% business, you can deduct all these costs, but you'll need to keep detailed records of every expense. The good news is that with construction vehicles that tend to have higher maintenance costs, the actual expenses method often provides more deductions anyway.

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As a small business owner who's been through this exact situation, I'd recommend getting really clear on your record-keeping system first before deciding between direct vs indirect categorization. For your F-150 that's 100% business use, the key is consistency. If you're billing clients for travel time or including vehicle costs in your job estimates, then fuel and maintenance tied to specific jobs would be direct costs. Otherwise, treat them as indirect overhead expenses - both are fully deductible either way. Since you mentioned you already track mileage, consider using a simple app like Everlance or TripLog to automatically categorize your trips by job site. This creates the documentation trail you'll need if the IRS ever comes knocking. I learned this the hard way when I got selected for review and had to reconstruct months of driving records. One more tip: if you're doing the actual expenses method (which sounds like it might work better for you given construction vehicle wear and tear), keep a dedicated business credit card just for truck expenses. Makes tax prep so much easier when everything's in one place.

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This is really solid advice! I'm also in construction and struggled with the same categorization issues when I started my business. The dedicated business credit card tip is brilliant - I wish someone had told me that years ago. One thing I'd add is that even with good apps, it's worth doing a quick weekly review of your trips to make sure everything got categorized correctly. I use MileIQ and sometimes it misses short trips between nearby job sites or categorizes personal stops as business if I forget to mark them. Takes maybe 10 minutes on Sunday mornings but saves tons of headaches at tax time. @Giovanni Rossi since you already have the mileage tracking down, you re'ahead of a lot of us! The actual expenses method will probably work better for construction vehicles anyway since we tend to put a lot of wear on our trucks.

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I'm new to running my own business and this whole thread has been incredibly helpful! I've been stressing about vehicle expense categorization for months. One question I haven't seen addressed - what about when you use your work truck for multiple purposes in the same trip? Like if I drive to pick up materials at Home Depot, then swing by a job site to drop them off, then grab lunch on the way back to the office? How do you handle tracking something like that? Also, for those using apps like MileIQ or TripLog, do they integrate well with QuickBooks? I'm trying to streamline my bookkeeping process and don't want to end up manually entering everything twice. Thanks to everyone who's shared their experiences here - definitely saving this thread for future reference!

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