Tax Tips for Relief Veterinarians: What You Need to Know
One of the first things you figure out after your first relief shift is that the money hits differently. No taxes withheld. The full amount, deposited directly. It feels great — until April rolls around and you realize you’ve been spending money you technically owe the government.
Taxes as an independent contractor are more complicated than they were as a W-2 employee. But there’s a flip side: the tax code gives self-employed people access to deductions that most employees never see. If you plan well, relief work can actually be quite tax-efficient. If you don’t plan at all, you’ll get a painful surprise every spring.
Here’s what you need to know.
You’re Running a Business Now
As a relief vet, every hospital you work for is a client, not an employer. That means no one is withholding federal income tax, state income tax, or payroll taxes on your behalf. You receive gross income and you’re responsible for all of it.
That’s the downside. The upside is that you’re now a business owner, and the tax code treats business owners very differently than employees. Almost everything that costs you money to do your job can be deducted from your income before taxes are calculated.
Start With the 30% Rule
A useful rule of thumb: set aside roughly 30% of every payment you receive. That covers federal income tax at the 22% bracket plus self-employment tax (Social Security and Medicare, which together run about 15.3% — though half is itself deductible). If you’re in a higher income bracket, bump that percentage up.
If you live in a state with no income tax — Florida, Texas, Nevada, Washington, and a handful of others — you may be able to set aside a bit less. If your state has high income taxes, you may need to set aside more.
The key is to treat that money as gone the moment it hits your account. Put it in a separate savings account and leave it alone.
Pay Quarterly, Not Just Annually
The IRS expects you to pay taxes as you earn, not just once a year. If you’ll owe more than $1,000 at tax time, you’re generally required to make quarterly estimated payments. Missing them doesn’t just mean a bigger bill in April — it means penalties on top of what you owe.
The four due dates are:
- April 15 (for income earned January–March)
- June 15 (for income earned April–May)
- September 15 (for income earned June–August)
- January 15 (for income earned September–December)
The simplest way to estimate your payments is to divide last year’s total tax bill by four. Paying at least that amount keeps you in the IRS’s “safe harbor” — meaning no underpayment penalties, even if your actual bill ends up higher.
Multi-State Filing Is Real
Relief vets often travel, and crossing state lines to work comes with a tax consequence most people don’t think about: you may need to file a tax return in every state where you earned income. Even if you only picked up a few shifts in another state, that state may require you to report and pay tax on those earnings.
Your home state (where you live) is always your primary filing state. Any other state where you worked is a non-resident return. The income typically isn’t taxed twice — states have mechanisms to avoid that — but you do have to file the paperwork.
If you regularly work across state lines, a good accountant is worth every dollar. The rules vary by state and change periodically.
Business Deductions: Where the Real Savings Are
This is where tax planning as a relief vet becomes genuinely interesting. Because you’re running a business, you can subtract legitimate business expenses from your income before taxes are calculated. That directly reduces what you owe.
Here are the most common deductions relief vets use:
Mileage
The IRS standard mileage rate in 2026 is $0.725 per mile. Every mile you drive from your home to a shift and back is deductible. That adds up fast if you’re covering a region. Track it — either with a GPS-based app or a manual log — because the IRS requires documentation.
Professional Licenses and CE
Your state veterinary license fees, DEA registration, AVMA or specialty organization dues, and continuing education expenses are all deductible. Registration fees, travel to CE conferences, course materials — all of it.
Professional Liability Insurance
Your malpractice insurance premiums are a deductible business expense. Same goes for any professional umbrella coverage you carry.
Medical Equipment
Stethoscopes, otoscopes, ultrasound machines, surgical instruments — if you purchase equipment to use in your work, it’s deductible. There are different rules for larger purchases (you may be able to deduct the full cost in year one under Section 179 or bonus depreciation), so ask your accountant how to handle significant equipment purchases.
Home Office
If you use a dedicated portion of your home exclusively for business — scheduling shifts, handling paperwork, billing — you can deduct a proportional share of your rent or mortgage interest, utilities, and internet. The IRS uses either actual expenses or a simplified method ($5 per square foot, up to 300 sq ft). The space has to be used regularly and exclusively for business to qualify.
Cell Phone and Internet
A percentage of your cell phone bill and home internet is deductible based on business use. If you use your phone 60% for work (scheduling, client communication, apps), 60% of the bill is deductible. Be honest with the percentage — but don’t leave this one on the table.
Travel to Continuing Education
If you travel more than 50 miles from home to attend a CE conference or seminar, your transportation (flights, gas, or mileage), lodging, and 50% of your meals are deductible. If you can fly out a day early and the earlier flight is cheaper than arriving the day of, the extra hotel night may be deductible too. Personal days added to a work trip aren’t deductible, but the work-related portions still are.
Networking Meals
Meals where you’re genuinely discussing business with a colleague, mentor, or referring practice can be 50% deductible. Document the date, attendees, and the business purpose.
Business Structures: LLC and S-Corp
Two business structures come up constantly in conversations about relief vet taxes.
An LLC or PLLC is a legal structure that separates your personal assets from your business. If someone sues your business, your personal bank account and home have protection. Most relief vets should have at least this.
An S-Corp is a tax election — a way of structuring how income flows through your business to reduce self-employment taxes. Here’s the simplified version: as a sole proprietor, all of your net income is subject to self-employment tax (about 15.3%). If you elect S-Corp status, you pay yourself a reasonable salary (subject to payroll tax) and take the rest as a distribution (not subject to self-employment tax). The savings can be significant — but only if your income is high enough to justify the added administrative overhead, including running payroll.
A rough rule of thumb: S-Corp election starts making financial sense when your gross relief income exceeds around $100,000, or when your profit after deductions clears $40,000. Below that, the accounting costs often outweigh the tax savings.
Keep Good Records
Deductions are only useful if you can prove them. The IRS doesn’t accept credit card statements alone — they want receipts.
The simplest solution I’ve found is QuickBooks Online. It handles everything in one place: you can snap photos of receipts directly in the app, it has a built-in mileage tracker that logs your drives automatically using your phone’s GPS, and it connects directly to your bank accounts and credit cards to categorize expenses as they come in. When tax season arrives, you can give your CPA direct access to your QuickBooks account — no exporting spreadsheets, no emailing PDFs back and forth. They can see everything they need and work straight from your records.
The discipline to track as you go saves hours of scrambling in April — and protects you if you’re ever audited.
Work With a CPA Who Gets It
Generic tax prep services aren’t the right fit for relief vets. The independent contractor deductions, multi-state filing requirements, business structure decisions, and quarterly payment calculations all require someone who understands self-employment taxes and ideally has experience with healthcare or veterinary professionals.
A CPA who specializes in this area will almost certainly save you more than they cost — both in time and in taxes you wouldn’t have known to minimize. Think of it as a business expense. Because it is.
Taxes as a relief vet feel overwhelming at first. Once you set up the system — the savings account for taxes, the quarterly payment schedule, the receipt tracking habit — it becomes routine. And once you start actually using the deductions available to you, you’ll realize that the IRS tax code has a lot more to offer independent contractors than it does employees.
Get the right CPA, set the right habits early, and this part of running your practice will take care of itself.
