Professional Genealogist Tax Deductions: 2026 Schedule C Guide to Records Fees, DNA Kits, and Archive Trips

Published: October 13, 2026 · Reading time: 10 min

TL;DR: A self-employed professional genealogist (client research, probate heir searches, lineage-society applications, family history reports) deducts the cost of finding the records on Schedule C: record database subscriptions and courthouse or archive copy fees on Line 27a, client DNA kits and a scanner on Line 22, research trips on Lines 24a and 24b (meals only 50%), local driving on Line 9 at the split 2026 rate (72.5 cents through June 30, 76 cents from July 1), and a home office on Line 30. Three limits matter most: your own family tree is personal, not a business expense; travel is a section 274(d) expense that needs a record of the amount, place and business purpose; and driving from home is clearly deductible when your home office is your principal place of business (without one, a trip to a temporary work location outside your metropolitan area is the main exception). In the worked example below, a genealogist's 2026 deductions total $4,316.59. This guide is general education, not tax advice.

Genealogy is an odd business for tax purposes. The raw material is public records, the tools are mostly subscriptions, and the biggest single costs tend to be a few research trips and a pile of small copy fees that never show up on a monthly statement. The risk is not that the expenses are exotic. It is that a $14 certified copy from a county clerk, a pay-by-the-page archive printout and a fuel stop on the way to a cemetery are easy to lose, and easy to confuse with the research you do on your own family for fun.

This guide maps those costs to the right Schedule C lines and states which rule governs each. If you are earlier in the process, start with what makes a receipt valid for the IRS. Neighboring research professions have their own guides, including court reporters, process servers, real estate appraisers and freelance writers, who share the "records and sources" problem.

Client Work Versus Your Own Family Tree

Start with the line that decides everything else. A deduction on Schedule C must be for a business. Time and money spent tracing your own ancestors is personal, and the fact that you are paid to do the same thing for others does not convert it.

• Client file: engagement letter, invoice, and a case or client name on every receipt.
• Mixed use: a subscription that serves both your client work and your own tree is deductible only for the business share. Pick a reasonable method, write it down and use it every year.
• Personal side trips: if a research trip includes a visit to your own ancestral hometown, separate those days and costs.

If the business loses money year after year while it resembles a pastime, the IRS can challenge it as an activity not engaged in for profit. Our guide to the hobby-loss rule explains the nine-factor test and the three-of-five-year presumption. The best defense is the ordinary one: client files, invoices, a business bank account and receipts.

Records, Subscriptions and Copy Fees: Line 27a (or Line 22)

This is the largest group by count, and the one most likely to be under-captured.

Pick a line convention and use it consistently; our guide to Schedule C Line 27a other expenses shows how to describe an item that does not have its own line. The IRS publications do not address genealogy databases specifically, so the allocation and line placement are judgment areas to confirm with a CPA or EA.

If the client repays you. Probate and heir-search clients often reimburse record fees. A reimbursement the client includes in what it reports to you is generally part of your gross receipts, with the cost as a matching deduction, so net profit does not change. The exception is a true accountable arrangement. Client-reimbursed expenses walks through both sides. Keep your own receipts either way.

DNA Kits, Scanners and Equipment: Line 22

Many genealogists buy DNA kits to test a client's relatives, and some buy a flatbed scanner, a large monitor or a laptop for handling images. A kit purchased for a client file is a supply. A kit used for your own ancestry is not.

For equipment, the de minimis safe harbor lets a taxpayer without an applicable financial statement expense an item that costs $2,500 or less per invoice or per item as substantiated by the invoice. Notice 2015-82 raised that limit from $500 to $2,500, and you make an annual election by attaching a statement to a timely filed return. A $389.99 scanner fits easily. A $3,200 workstation does not, and would be depreciated or expensed under section 179 instead. Details are in the de minimis safe harbor guide. Equipment used for both client work and personal projects is deductible only for the business-use share.

Research Trips: Lines 24a and 24b

An archive trip is where the money is, and where the rules are strictest. Section 274(d) says no deduction is allowed "for any traveling expense (including meals and lodging while away from home)" unless the taxpayer substantiates "by adequate records or by sufficient evidence corroborating the taxpayer's own statement" four things: the amount, the time and place, the business purpose, and the business relationship of the person receiving the benefit. For a research trip, that means a log entry naming the archive, the dates, the client file and what you looked for.

Two threshold tests apply.

Away from home. Publication 463 says "Generally, your tax home is your regular place of business or post of duty, regardless of where you maintain your family home." Travel deductions require that your duties take you away from the general area of that tax home substantially longer than an ordinary day's work and that you need to sleep or rest while away. A courthouse two towns over on a day trip is not travel; the driving is local mileage on Line 9.

Meals. Publication 463 says "regardless of the method you use, you can generally deduct only 50% of the unreimbursed cost of your meals." Meals while on the trip go on Line 24b, at half; airfare, lodging and local ground transport go on Line 24a in full. Keep lodging folios, as covered in hotel folio receipts.

Mixed trips. If you add personal days, the transportation to get there within the United States is deductible only when the trip is primarily for business, and the lodging and meals for the personal days are not. A trip outside the United States has its own allocation rules even when it is primarily business; see the one-week and 25% rules. Ask a CPA or EA how to split a trip that is part client work and part family visit.

Driving to Courthouses, Cemeteries and Libraries: Line 9

Local trips to a county records office, a cemetery for a headstone photograph or a library are business mileage. Two rules decide how much of it you can deduct.

Where the trip starts. Publication 463 says "If you have an office in your home that qualifies as a principal place of business, you can deduct your daily transportation costs between your home and another work location in the same trade or business." If you have no qualifying home office, a drive from home to a regular work location is commuting, although a trip to a temporary work location outside your metropolitan area can still be deductible. See the home-office mileage rule.

Which rate. The 2026 standard mileage rate is split: 72.5 cents per mile for January 1 through June 30 (IR-2025-128) and 76 cents per mile from July 1 through December 31 (IR-2026-29). Value each trip at the rate for its date. Publication 463 also says "If you use the standard mileage rate for a year, you can't deduct your actual car expenses for that year," so gas for these trips is not a separate deduction on the standard rate. Parking and tolls are the exception and can be added. Keep a contemporaneous mileage log; our 2026 mileage rate guide covers the choice between methods.

Conferences, Courses and Credentials

Genealogists attend conferences, take methodology courses and pursue credentials. The regulation on education, 26 CFR 1.162-5, says education is deductible as an ordinary and necessary business expense if it "Maintains or improves skills required by the individual in his employment or other trade or business." It excludes education undertaken to meet the minimum requirements to qualify, and education that is part of a program leading to a new trade or business. For someone already operating a genealogy business, a continuing-education webinar generally fits the first category. A program you take in order to enter the field generally does not. Whether a specific credential is skill maintenance or qualification is a judgment call; see education and certification deductions. Conference travel follows the trip rules above.

Insurance and the Home Office

Professional liability (errors and omissions) is deductible as business insurance on Line 15. Heir-search and probate work puts real money in the hands of the researcher's conclusions, so some clients and attorneys ask for coverage.

Home office. Most genealogists work from home. The simplified method gives, in the IRS's words, a "Standard deduction of $5 per square foot of home used for business (maximum 300 square feet)," which is a ceiling of $1,500. The space must qualify (regular and exclusive business use). Compare it with actual expenses in the simplified versus actual guide. The deduction goes on Line 30.

Worked Example: One Archive Trip and a Year of Small Receipts

Elena is a single professional genealogist working from a 150-square-foot dedicated home office, with 2026 gross receipts of $62,400.00 from client research. She uses the cash method and the standard mileage rate. Her deductible expenses:

Her net profit before other items is $62,400.00 minus $4,316.59, or $58,083.41.

Three points the numbers illustrate:

• Meals: she spent $186.00 but deducts $93.00. Entering the full amount would overstate the deduction by $93.00.
• Mileage: 600 miles at one flat rate is wrong in either direction. At 72.5 cents all year it gives $435.00, which understates the correct $444.10 by $9.10; at 76 cents all year it gives $456.00, which overstates it by $11.90. The split gives $444.10.
• Trip total: the trip itself is $981.00 ($888.00 plus $93.00), and it holds up only if her log names the archive, dates and client file.

No tax figure is computed here. The effect of $4,316.59 on her self-employment tax and income tax depends on facts this example does not state, and an uncomputed number would be a guess.

Common Mistakes to Avoid

1. Deducting your own family tree research. It is personal.
2. Entering 100% of trip meals. The limit is 50%.
3. Using one mileage rate for all of 2026. The rate changed on July 1.
4. Deducting commuting from a home that is not a qualifying principal place of business.
5. Skipping the log for a trip. Section 274(d) denies the deduction without substantiation.
6. Losing copy-fee receipts. Small cash fees are easy to forget; ask for a receipt each time.
7. Netting client reimbursements out of income. Report them as receipts and deduct the cost, unless the client reimburses you under an accountable arrangement and leaves them off your 1099, in which case they are neither income nor a deduction.
8. Treating a first credential as skill maintenance without checking. Education that qualifies you for a new trade is not deductible.
9. Deducting a shared subscription at 100%. Allocate the business share.
10. Forgetting insurance and dues. They are small and recurring.

How CentSense Helps

CentSense makes the small receipts the backbone of the file:

• Scan courthouse copy-fee receipts, DNA kit orders and archive invoices with AI the day you get them. The free tier includes 10 AI scans a month
• Add a note naming the client file or case when you scan, so a $14 certified copy ties to an engagement
• Log local research trips by date with mileage tracking on the Solo plan ($5/month). 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
• Export your categorized expenses as CSV, or as a CPA-ready export, so your preparer can see which receipts back each line

CentSense does not decide whether a trip is primarily business, whether your home office qualifies, or whether a credential is skill maintenance. Those are judgment calls for you and your CPA or EA.

Frequently Asked Questions

Can a professional genealogist deduct record database subscriptions?

Generally yes, when the subscription is ordinary and necessary for paid client research. Newspaper archives, records databases and similar services you use to produce client reports are business expenses, usually reported on Schedule C Line 27a (other expenses) or Line 22 (supplies and software), as long as you report the same kind of cost on the same line every year. The catch is mixed use: if the same subscription also serves your own family tree, deduct only the business share, and keep a note of how you measured it. Research done for yourself as a hobby is not a business expense. The IRS publications do not address genealogy databases specifically, so confirm your allocation method with a CPA or EA.

Are DNA test kits I buy for a client's research deductible?

Generally yes, if you buy the kit to test a relative as part of a paid client engagement and you can tie it to that file. Kits used for your own ancestry are personal and not deductible. Report client kits on Schedule C Line 22 (supplies), or treat them as a client-billed cost: if the client repays you for the kit, the repayment is usually part of your gross receipts and the kit is a matching deduction, so net profit does not change, unless the client reimburses you under an accountable arrangement and leaves it off your 1099, in which case it is neither income nor a deduction. If the client buys the kit directly, it never touches your return. Keep the order confirmation and note the client or case number. Ask a CPA or EA how to treat reimbursements under your engagement letter.

Can I deduct a trip to an out-of-state archive or a courthouse?

Often yes, if the trip is primarily for client research and you are away from your tax home long enough to need sleep or rest. Airfare, lodging and local transportation go on Schedule C Line 24a; meals go on Line 24b and are generally limited to 50% of the unreimbursed cost. Travel is a section 274(d) expense, so you must substantiate the amount, the time and place, and the business purpose with adequate records. A day trip with no overnight stay is not travel away from home; the driving is local mileage on Line 9 instead. Personal days added to the trip must be separated out, and a trip outside the United States can require allocating the airfare even when it is primarily business. Confirm mixed business-and-personal trips with a CPA or EA.

Can I deduct mileage to a courthouse or library from my home office?

Only if the trips are business trips and, for driving that starts at home, generally only if your home office qualifies as a principal place of business (a temporary work location outside your metropolitan area is the exception). Publication 463 says that if you have a home office that qualifies as a principal place of business, you can deduct daily transportation costs between your home and another work location in the same trade or business. Without a qualifying home office, a trip from home to a regular work location is commuting, although a trip to a temporary work location outside your metropolitan area can still be deductible. The 2026 standard mileage rate is split: 72.5 cents per mile for January 1 through June 30 and 76 cents per mile from July 1 through December 31, so value each trip at the rate for its date. Ask a CPA or EA whether your home office qualifies.

Are genealogy conferences, courses and credentials deductible?

Often yes when they maintain or improve skills in a genealogy business you already run, but not when they qualify you for a new trade or business. The regulation allows a deduction for education that maintains or improves skills required in your existing trade or business, and it excludes education that is part of a program leading to a new trade or business or that meets minimum requirements to qualify. Conference travel follows the same travel rules as any trip: airfare and lodging on Line 24a, meals at 50%, with records of the amount, place and business purpose. Whether a particular credential counts as maintaining skills or qualifying you for the field is a judgment call; ask a CPA or EA.

Can I deduct research I do on my own family tree?

No, not as a business expense. Time and costs spent on your own ancestry are personal, even if you are a professional genealogist and the skills overlap. If one purchase serves both, such as a database subscription or a trip that included a client visit and a visit to your own ancestral hometown, deduct only the business share and document how you split it. A business that keeps losing money while it looks like a pastime can also draw a hobby-loss challenge under section 183, which would disallow the losses. Keep client files, engagement letters and invoices to show a profit motive, and ask a CPA or EA about your facts.

Can I expense a scanner or laptop all at once?

Possibly. Under the de minimis safe harbor, a taxpayer without an applicable financial statement can generally expense an item that costs $2,500 or less per invoice or per item as substantiated by the invoice, if you make the annual election by attaching a statement to a timely filed return. Notice 2015-82 raised that limit from $500 to $2,500. Larger purchases are depreciated or expensed under section 179, subject to its own limits. A scanner or laptop you also use for personal purposes is deductible only for the business-use share. Ask a CPA or EA before relying on the election.

Authoritative References

• IRS: Publication 463, Travel, Gift, and Car Expenses
• 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: Simplified option for home office deduction
• IRS: Notice 2015-82 (de minimis safe harbor limit raised to $2,500)
• 26 U.S.C. 274: Disallowance of certain entertainment, etc., expenses (Cornell LII)
• 26 CFR 1.162-5: Expenses for education (Cornell LII)
• 26 CFR 1.263(a)-1: Capital expenditures, general rules (Cornell LII)

Stop losing the $14 copy-fee receipts. Start a free CentSense account, scan each receipt with AI when you get it, log your research miles by date, and export a CPA-ready breakdown at tax time. The free tier includes 10 AI receipt scans a month, no credit card required, and the Solo plan is $5/month for unlimited scans, mileage tracking and CSV export.

This guide is general education for U.S. freelancers filing a Schedule C in 2026. It is not personalized tax advice. Whether a trip is primarily business, whether your home office qualifies, how mixed-use subscriptions and equipment should be allocated, and whether a credential counts as skill maintenance are judgment areas, and the facts that drive your numbers should be confirmed by a CPA or EA based on your full situation.