Pennsylvania’s treatment of self-employment income departs from federal rules in ways that cost people money — usually because they assumed the federal answer carries over.
Here is what actually applies.
Net profits are their own income class
Pennsylvania sorts income into eight classes and taxes each at a flat 3.07%. Self-employment income falls into net profits from a business, profession, or farm, reported on PA Schedule C.
The critical consequence: losses do not cross classes. A $10,000 loss on your Schedule C cannot offset $60,000 of W-2 wages. You will pay Pennsylvania tax on the full $60,000 of compensation while your business loss produces nothing.
Federally, that loss would reduce your total income. In Pennsylvania it is stranded. For someone running a side business at a loss while employed, this is the single biggest surprise.
Within the class, netting works normally — two businesses, one profitable and one not, offset each other.
No self-employment tax at the state level
Some genuinely good news. Pennsylvania has no state-level self-employment tax. The 15.3% you pay federally for Social Security and Medicare has no Pennsylvania counterpart.
Nor does Pennsylvania give you a deduction for half of it — but since PA taxes net profits directly rather than adjusted gross income, there is nothing to deduct it from.
PA Schedule C differs from federal Schedule C
You cannot simply copy the federal numbers. Notable differences:
- Depreciation. Pennsylvania does not follow federal bonus depreciation. Section 179 is allowed but subject to Pennsylvania’s own limit, which has historically been well below the federal limit. A large equipment purchase expensed fully on your federal return may be depreciated over years in Pennsylvania.
- Meals. Pennsylvania’s treatment of business meals has differed from federal percentage limits.
- Retirement contributions. Contributions to your own SEP or solo 401(k) are not deductible against Pennsylvania net profits the way they are federally. This is a meaningful gap for high savers.
- Health insurance. The federal self-employed health insurance deduction does not have a direct Pennsylvania equivalent against net profits.
The practical effect: your Pennsylvania taxable business income is frequently higher than your federal figure. Software handles most of this, but check the PA Schedule C rather than assuming.
Local earned income tax: the one people miss
Most Pennsylvania municipalities and school districts levy a local Earned Income Tax, commonly around 1% but higher in some places — Philadelphia operates its own considerably higher wage and net profits taxes.
If you are self-employed, net profits are subject to local EIT, and nobody withholds it for you. W-2 employees have it taken out automatically and never think about it. Go freelance and the obligation becomes yours, filed with a regional tax collector rather than the state.
This catches nearly every newly self-employed Pennsylvanian at least once. Find your municipality’s collector and register.
Philadelphia is its own situation: the Business Income and Receipts Tax plus the Net Profits Tax apply to people doing business in the city, and the thresholds are low. If you work in Philadelphia, get local advice.
Estimated payments
Pennsylvania requires quarterly estimated payments if you expect to owe more than a threshold amount beyond withholding. Due dates align with the federal schedule — April 15, June 15, September 15, and January 15.
Two things to plan for:
- State estimates at 3.07% of expected net profits
- Local EIT estimates, which many collectors also require quarterly
Missing the local piece is the more common error, and interest accrues quietly.
The deductions Pennsylvania does allow you
Beyond ordinary business expenses on Schedule C, Pennsylvania’s personal deductions are limited to four items on PA Schedule O: Medical Savings Account contributions, Health Savings Account contributions, IRC §529 tuition contributions, and PA ABLE contributions.
That is the complete list. No mortgage interest, no charitable contributions, no state and local taxes, no standard deduction, no personal exemption.
The HSA deduction is worth attention if you buy your own health coverage — a self-employed Pennsylvanian on a high-deductible plan gets a deduction that is otherwise nearly impossible to come by in this system.
Tax Forgiveness applies to you too
Self-employment income counts toward eligibility income for PA Tax Forgiveness on Schedule SP, and net profits are what get forgiven. A freelancer with a modest year — particularly one supporting dependents — may qualify for substantial or complete forgiveness of Pennsylvania tax.
It is never automatic. Run the numbers before filing.
If you formed an entity
Single-member LLCs are disregarded for Pennsylvania purposes, same as federally — report on PA Schedule C.
S corporations require a PA-20S/PA-65 return, with income flowing to shareholders on RK-1 or NRK-1 schedules. Pennsylvania recognizes federal S elections but has its own filing requirements, and reasonable compensation rules matter here as they do federally.
Multi-member LLCs and partnerships also file the PA-20S/PA-65.
Frequently asked questions
Do I need a Pennsylvania business license?
There is no general statewide license, but many municipalities require local registration, and specific professions require state licensure. Check locally.
I live in PA and work remotely for an out-of-state client. Where is it taxed?
As a Pennsylvania resident, your income is generally taxable in Pennsylvania regardless of client location. If another state also taxes it, Schedule G-L provides a resident credit.
Can I deduct a home office?
Pennsylvania allows a home office deduction against net profits under rules similar to the federal ones. It is claimed on PA Schedule C.
Is my SEP contribution deductible in Pennsylvania?
Generally not against net profits the way it is federally. This is a real difference for high savers and worth modeling before you contribute.
What if I have both a job and a business?
Both are taxed, in separate classes, and a business loss cannot reduce your wage income. Budget accordingly.
The bottom line
Pennsylvania taxes your net profits at a flat 3.07%, strands your business losses, disallows retirement and health insurance deductions you take federally, and adds a local earned income tax that nobody withholds for you.
Register with your local collector, pay state and local estimates quarterly, and check Schedule SP before you file.
Related guides
This article is general information, not tax advice. Pennsylvania rules, Section 179 limits, and local tax rates change and vary by municipality. Verify with the PA Department of Revenue at pa.gov and your local tax collector, or consult a qualified Pennsylvania tax professional.