Freelance Archaeologist Tax Deductions: Field Travel, Tax Home, Gear, Education and 2026 Mileage (Schedule C Guide)

Published: October 27, 2026 · Reading time: 12 min

TL;DR: A freelance or contract archaeologist who is paid as an independent contractor files Schedule C and pays self-employment tax on net profit. The deductions that matter most come from fieldwork away from home, and they all depend on one threshold question: do you have a tax home to be away from? An itinerant with no regular place of business and no place they regularly live cannot deduct travel at all. If you do have a tax home, lodging on a temporary project is deductible at actual cost (line 24a), meals are generally 50% (line 24b), and a project expected to last more than 1 year is indefinite and becomes your new tax home. If you have no regular work location and no qualifying home office, the daily drive from home to a survey site inside your metropolitan area is commuting. Field supplies go on line 22, and 2026 mileage is 72.5 cents through June 30 and 76 cents from July 1. The worked example below has $58,000 of receipts, $16,621.30 of expenses and $41,378.70 of net profit.

Most professions travel to work. A field archaeologist travels to a hole in the ground that a developer, agency or research team wants understood before something is built over it. A season can mean five weeks in a motel two hundred miles from home, a three-week survey, and a few months of report writing at a desk. That rhythm makes the tax questions different from a typical freelancer's.

This guide is for archaeologists, field directors, crew chiefs, specialists such as lithic or faunal analysts, and report writers who work on contract for cultural resource management (CRM) firms, universities, agencies, tribes or developers. It covers federal income tax only. Permits, state licensing and the rules of any professional register are outside it.

For neighboring trades with similar field logistics, see our land surveyor guide and the drone pilot and aerial photographer guide.

Which Income Goes on Schedule C

Archaeology has an unusually blurry line between employees and contractors. A crew member hired hourly by a firm for a season is often a W-2 employee. A specialist hired for a lithic analysis, a field director on a project-by-project agreement, or a report writer invoicing by the deliverable is more likely a contractor. The label on the paperwork does not decide it. The facts do.

• Contract fieldwork, analysis and report writing paid to you as a contractor. Gross receipts on Schedule C, subject to self-employment tax of 15.3% on 92.35% of net earnings (how SE tax works), plus quarterly estimated payments.
• Seasonal or hourly pay on a W-2. Wages reported on a W-2 are not Schedule C income. Publication 463 says unreimbursed employee expenses claimed as a miscellaneous itemized deduction subject to the 2% floor are suspended, and that the suspension applies to tax years beginning after 2017. Keep that gear and mileage out of Schedule C, and see our W-2 job plus 1099 income guide if you have both.
• Per diem and expense reimbursements from a client. How these are reported depends on the arrangement. Our client reimbursement guide explains the usual treatment.

The Instructions for Forms 1099-MISC and 1099-NEC say to file Form 1099-NEC for each person you pay at least $2,000 in services performed by someone who is not your employee. That is the figure for payments made after 2025, and the old threshold was $600 (what changed). Report your income whether or not a form arrives.

Where Archaeology Costs Land on Schedule C

The IRS redesigned Schedule C for 2025, and its instructions say other expenses are now reported on line 27b, while line 27a is the energy efficient commercial buildings deduction. Many guides, including some of ours, still say 27a. Check the line numbers on the form for your tax year.

Hired a field assistant or a subcontractor to run a screen line? Payments to someone who is not your employee go on line 11, contract labor, and you may owe a 1099-NEC.

The Question That Decides Everything: Do You Have a Tax Home?

Travel is the biggest line for a field archaeologist, so this section comes first. Publication 463 defines the term the deduction turns on:

"Generally, your tax home is your regular place of business or post of duty, regardless of where you maintain your family home. It includes the entire city or general area in which your business or work is located."

Away from home means away from that area. For crews who live out of a truck from one project to the next, the next sentence from Publication 463 is the one to read twice:

"If you don't have a regular or main place of business or post of duty and there is no place where you regularly live, you are considered an itinerant (a transient) and your tax home is wherever you work. As an itinerant, you can't claim a travel expense deduction because you are never considered to be traveling away from home."

It takes both failures to make you an itinerant. A contract archaeologist who works wherever the projects are but keeps a home base, with a lease, family there and regular nights in it, is not automatically in that position. For people with no regular or main place of business, Publication 463 uses three factors: you perform part of your business in the area of your main home and use that home for lodging while doing business there; you have living expenses at that home that you duplicate because your business requires you to be away; and you haven't abandoned that area, you have family living at the home, or you often use it for lodging. It then says:

"If you satisfy all three factors, your tax home is the home where you regularly live. If you satisfy only two factors, you may have a tax home depending on all the facts and circumstances. If you satisfy only one factor, you are an itinerant; your tax home is wherever you work and you can't deduct travel expenses."

Our tax home and itinerant guide works through the factors and the records that prove them. If you sold the house, live in a camper and have no regular place of work, plan on the lodging not being deductible and ask a CPA or EA before claiming any.

The one-year line

Even with a tax home, the project has to be temporary. Publication 463 says:

"An assignment or job in a single location is considered indefinite if it is realistically expected to last for more than 1 year, whether or not it actually lasts for more than 1 year."

When a job is indefinite, the location becomes your new tax home and you can't deduct your travel expenses while there. The Instructions for Schedule C add that you can't deduct expenses in connection with employment away from home if that period of employment exceeds 1 year.

Archaeology has a built-in trap here: multi-phase projects. Publication 463 warns that a series of assignments to the same location, all for short periods but together covering a long period, may be considered an indefinite assignment. A field director who returns to one large site for a survey, then testing, then data recovery, then monitoring, is the person to ask about this, because each phase may be short while the total is not. Write down the expected length of each project when it begins. Publication 463 requires you to determine temporary or indefinite when you start work.

Trips home on days off

If you go home between stints on a long project, Publication 463 says you aren't considered away from home while you are in your hometown and can't deduct meals and lodging there. It adds that you can deduct your travel expenses, including meals and lodging, while traveling between the temporary workplace and your tax home, up to the amount it would have cost you to stay at the temporary workplace. Our weekend sandwich guide covers the days around a trip.

Lodging and Meals on a Field Project

Lodging is actual cost

Publication 463 says: "There is no optional standard lodging amount similar to the standard meal allowance. Your allowable lodging expense deduction is your actual cost." Keep the folio or lease for every night, labeled with the project, and enter the total on line 24a. A month-to-month room, a rented cabin or a hotel are all handled the same way, and a record that shows dates and the project is what matters. A night with no lodging cost, such as sleeping in your own camper at no charge, produces no lodging deduction.

Meals are generally 50%

You can deduct the actual cost of meals or use the standard meal allowance. Publication 463 says: "You can use the standard meal allowance whether you are an employee or self-employed, and whether or not you are reimbursed for your traveling expenses." If you use it and are not reimbursed, you can generally deduct only 50% of it. The rate depends on where you are working, so look up the current figure for the project location rather than relying on a number in an article. Our per diem versus actual cost guide walks through the choice, and the meals guide covers the records.

When the client reimburses your meals

Publication 463 has an exception for the self-employed:

"If you are self-employed, your deductible meal expenses aren't subject to the 50% limit if all of the following requirements are met. You have these expenses as an independent contractor. Your customer or client reimburses you or gives you an allowance for these expenses in connection with services you perform. You provide adequate records of these expenses to your customer or client."

It then says the client is subject to the 50% limit on the expenses. This matters when a firm pays your meals as a separate line item. It does not help if your daily rate is a lump sum with nothing separately reimbursed, so check the agreement and your records, and ask a CPA or EA how your reimbursements should be reported.

Mileage: Commuting, Temporary Sites and the 2026 Split

Inside your metropolitan area

Publication 463 addresses someone with no regular place of work who works in the area where they live:

"You can't deduct daily transportation costs between your home and temporary work sites within your metropolitan area. These are nondeductible commuting expenses."

A one-day shovel-test survey 25 miles from your house, inside your metropolitan area, is commuting. A different site each week does not change that.

The cases that change the answer

• A regular work location away from home. Publication 463 says that if you have one or more regular work locations away from your home and you commute to a temporary work location in the same trade or business, you can deduct the daily round-trip transportation between your home and the temporary location, regardless of distance. A rented lab or office you work from regularly could be such a location. Whether it is "regular" is a facts question.
• A temporary site outside your metropolitan area. If you have no regular place of work, you can deduct daily transportation between home and a temporary work site outside the area where you normally work. A job that is far enough to need a motel is travel away from home instead.
• A home office that is your principal place of business. The Instructions for Schedule C list travel to another work location in the same trade or business, regardless of whether that location is regular or temporary and regardless of distance, when your home is your principal place of business. See our home-office mileage guide and the temporary work location guide.
• Two places in one day. Publication 463 says: "If you work at two places in 1 day, whether or not for the same employer, you can deduct the expense of getting from one workplace to the other." If you detour for a personal reason, it caps the deduction at the direct route.

Our commuting versus business miles guide walks through more cases.

The 2026 rates

The IRS standard mileage rates page lists 2026 business rates of 72.5 cents per mile for January 1 to June 30 (IR-2025-128) and 76 cents per mile from July 1 (IR-2026-29). Value each trip at the rate for its date. Many field seasons span the change, so a log without dates cannot be valued. A contemporaneous log with date, start and end points, miles and project is what makes the number defensible. See the 2026 mileage rate guide.

Field Gear, Safety Equipment and Software

Supplies you use up

The Instructions for Schedule C say, for line 22:

"In most cases, you can deduct the cost of materials and supplies only to the extent you actually consumed and used them in your business during the tax year (unless you deducted them in a prior tax year)."

Bags, tags, flagging, pin flags, field forms, markers, sieve mesh and tape fit that description. So do consumables for lab processing. See our supplies guide.

Equipment: expense it, or depreciate it

A handheld GNSS receiver, a rugged tablet, a total station or a metal detector is equipment. The IRS page on the tangible property regulations says that if you do not have an applicable financial statement, you may use the de minimis safe harbor to deduct amounts up to $2,500 per invoice or item. The election has conditions, so see our de minimis safe harbor guide. The Schedule C instructions also note that qualified property acquired and placed in service after January 19, 2025 can take 100% bonus depreciation, and that the Section 179 dollar limit increased for 2025. Both are choices to make with your preparer, and they interact with how much profit you have.

Protective gear and clothing

Hard hats, safety vests, gloves and eye protection used on a work site are business gear. Boots and rain gear are less clear-cut. I did not find IRS text on work clothing to quote for this guide, so treat footwear and clothing you could wear off the job as a question for your CPA or EA, and keep a receipt and a note of the project.

Software and subscriptions

The Instructions for Schedule C say you can deduct technology and software tools that are ordinary and necessary expenses directly related to operating your business, and that this generally includes subscription services paid to manage your business. A GIS subscription, a drafting program, a field-data app or a reference database used for client work belong on line 27b. Software you must depreciate or amortize is treated differently. Subscriptions with a personal side, such as a hobby mapping app, need an honest split.

Education, Field Schools and Professional Dues

Publication 970 says:

"If your education isn't required by your employer or the law, it can be qualifying work-related education only if it maintains or improves skills needed in your present work."

It then excludes education needed to meet the minimum educational requirements of your present trade or business and education that is part of a program of study that will qualify you for a new trade or business. It adds: "You haven't necessarily met the minimum educational requirements of your trade or business simply because you are already doing the work."

For archaeology the sorting looks like this:

That last row comes straight from Publication 970: "You can't deduct the cost of travel as a form of education even if it is directly related to your duties in your work or business." A site tour for your own learning is travel as a form of education. A trip to attend a deductible conference or work for a client is a different analysis. Our education deduction guide explains the rule, and the right treatment of a given course depends on your facts. Professional society dues and subscriptions to journals you use with clients are other expenses on line 27b.

Insurance, Rent and Home Office

• Insurance. Professional and general liability premiums go on line 15. Ask your client what coverage the contract requires, since some contracts specify it. See business insurance.
• Lab, storage or desk space. Rent for space you use for the business goes on line 20b. A rented unit that holds artifacts or field gear is a business cost only for the business share, and any storage of clients' collections should follow the contract.
• Home office. A room used regularly and exclusively for report writing can qualify. A spare room that also holds your family's belongings does not. See the Form 8829 guide.

Worked Example: One Year as a Contract Archaeologist

Dana is a sole proprietor. She rents a desk in a shared lab in her home city, has a lease there and keeps her home base throughout the year. She has no W-2 wages and takes no home-office deduction. She is paid as a contractor on four jobs.

Gross receipts

Travel. Project A's site is 190 miles from her city, and she works there from March to April, which is expected to last 5 weeks. She drives out, stays on site for the whole project and drives home at the end, which is two one-way trips of 190 miles, or 380 miles. Project B's site is 240 miles away in August and September, and the same out-and-back pattern makes two one-way trips, or 480 miles. Both projects are temporary, are expected to last far less than a year, and are away from her tax home.

• Project A, January to June rate: 380 × $0.725 = $275.50
• Project B, July to December rate: 480 × $0.76 = $364.80
• Mileage: $640.30 on line 9

Using 72.5 cents all year for the 860 miles would give $623.50, so the split adds $16.80.

Lodging was 30 nights at $95 for Project A and 24 nights at $110 for Project B, or $2,850 plus $2,640, which is $5,490 on line 24a. She paid for 54 days of meals averaging $38, or $2,052, and deducts 50%, or $1,026, on line 24b. No client reimbursed her meals, so the exception for reimbursed expenses does not apply.

Expenses on Schedule C

Net profit is $58,000 minus $16,621.30, or $41,378.70. Self-employment tax at 15.3% on 92.35% of that is about $5,846.62, with half of it ($2,923.31) deductible. With no W-2 wages and a profit far below the Social Security wage base, the wage base does not come into play. The example makes no QBI calculation or income-tax estimate, because those depend on household income and other limits, so ask your CPA or EA.

Two things she did not deduct: the daily commute to the shared lab is not a field trip, and the cost of a sightseeing detour on the way home from Project B is personal.

Common Mistakes Field Archaeologists Make

1. Deducting motel nights with no tax home. An itinerant can't claim a travel expense deduction.
2. Ignoring the one-year line. A project expected to last more than 1 year is indefinite, and a string of short phases at one site can be treated the same way.
3. Deducting the daily drive to a local site. With no regular work location and no qualifying home office, inside your metropolitan area it is generally commuting; a regular work location changes that, so check the rule above.
4. Using one mileage rate all year. 2026 has two.
5. Treating a first field school or entry credential as ordinary education. It may qualify you for a new trade.
6. Calling a site visit education. Travel as a form of education isn't deductible.
7. Deducting 100% of meals. The general rule is 50%.
8. Putting W-2 field-tech costs on Schedule C. Unreimbursed employee expenses aren't deductible that way.
9. Skipping the log. Without dates, locations and project names, a motel receipt is just a receipt.

For receipt habits that hold up, see how to organize receipts for taxes.

How CentSense Helps

CentSense keeps the receipts and the trips for a project-based practice in one place:

• Scan lodging, meal, supply, equipment and workshop receipts with AI the day you pay, so the vendor, date and total are captured. The free tier includes 10 AI scans a month
• Log miles by date on the Solo plan ($5/month) with a destination and business purpose for each trip. CentSense's mileage export applies a single annual rate and does not apply the July 1, 2026 split (72.5 cents, then 76 cents) to each trip, so value each trip at the rate for its date
• On the Solo and Team plans, export your categorized expenses as CSV so your preparer can map them to Schedule C lines

CentSense tracks expenses and mileage. It does not decide whether you have a tax home, whether a project is temporary, whether a course qualifies as education, or whether a drive is commuting. Those are judgment calls for you and your CPA or EA.

Frequently Asked Questions

Can a freelance archaeologist deduct lodging and meals on a remote field project?

Often yes, but only if you have a tax home to be away from and the project is temporary. Publication 463 says an itinerant, with no regular place of business and no place where they regularly live, can't claim a travel expense deduction because they are never away from home. Where you do have a tax home, lodging is deductible at actual cost and meals are generally limited to 50%. A job expected to last over 1 year is indefinite. Ask a CPA or EA.

Is the daily drive from my house to a survey site deductible?

Usually not. Publication 463 says that if you have no regular place of work, you can't deduct daily transportation costs between your home and temporary work sites within your metropolitan area, because these are nondeductible commuting expenses. A daily trip to a temporary site outside your metropolitan area can be deductible, and so can a trip from a regular work location, or from a home that qualifies as your principal place of business. Ask a CPA or EA about borderline cases.

Can I use a per diem for meals on the road as a self-employed archaeologist?

Yes, the standard meal allowance is available to the self-employed, but it is still generally limited to 50% unless an exception applies. Publication 463 says you can use it whether you are an employee or self-employed, and that there is no optional standard lodging amount, so lodging is deducted at actual cost. The 50% limit does not apply to meals your client reimburses under the self-employed exception, when you give the client adequate records. Look up the current rate for your location and confirm with a CPA or EA.

Is a field school or graduate course deductible for a working archaeologist?

Sometimes. Publication 970 says education that is not required by your employer or the law can be qualifying work-related education only if it maintains or improves skills needed in your present work. It is not qualifying if it is needed to meet the minimum educational requirements of your trade or part of a program that will qualify you for a new trade or business. A course that qualifies you to enter the field is the riskier one. Ask a CPA or EA.

What mileage rate can an archaeologist use for 2026 field trips?

Two rates: the IRS lists 72.5 cents per mile for January 1 to June 30, 2026 (IR-2025-128) and 76 cents per mile from July 1 (IR-2026-29). Value each deductible business trip at the rate for its date, and count only miles that qualify, such as travel between your tax home and a temporary work site away from home, not ordinary commuting. In this guide's example, 380 spring miles and 480 autumn miles come to $275.50 plus $364.80, or $640.30. Confirm with a CPA or EA.

Do I report project income if the firm pays me as a contractor without sending a 1099?

Yes. Payments for your services are gross receipts on Schedule C whether or not a form arrives. The Instructions for Forms 1099-MISC and 1099-NEC say to file Form 1099-NEC for each person you pay at least $2,000 in services performed by someone who is not your employee, which is the threshold for payments made after 2025 (it was $600 before). Pay on a W-2 is different and does not go on Schedule C, and whether you are a contractor turns on the facts, so ask a CPA or EA.

Authoritative References

• IRS: Publication 463, Travel, Gift, and Car Expenses
• IRS: Publication 970, Tax Benefits for Education
• IRS: Instructions for Schedule C (Form 1040)
• IRS: Instructions for Forms 1099-MISC and 1099-NEC
• IRS: Standard mileage rates (2026: 72.5 cents Jan 1 to Jun 30 per IR-2025-128; 76 cents Jul 1 to Dec 31 per IR-2026-29)
• IRS: Tangible property final regulations (de minimis safe harbor)

Stop losing motel folios and field-season miles. Start a free CentSense account, scan each receipt with AI the day you pay, log every trip with its project, and export a CPA-ready breakdown at tax time. The free tier includes 10 AI receipt scans a month, and the Solo plan ($5/month) adds unlimited scans, mileage tracking and CSV export.

This guide is general education for U.S. self-employed archaeologists filing a Schedule C in 2026. It is not personalized tax advice. Whether you have a tax home, whether a project is temporary or indefinite, whether a drive is commuting, whether a course or credential is deductible, whether you are a contractor or an employee, and how client reimbursements are reported all depend on your facts, so confirm them with a CPA or EA before you file. Permits, licensing and professional-register rules are outside this guide.