You must file a Pennsylvania personal income tax return (the PA-40) if your Pennsylvania-taxable income for the year is more than $33, or if you recorded a loss in any class of income, even when your final tax bill works out to zero.1Pennsylvania Department of Revenue. Pennsylvania Personal Income Tax Return (PA-40) Filing Requirements The threshold sounds tiny, and it is: at Pennsylvania’s flat 3.07% rate, $33 of taxable income produces about $1 in tax. The twist is what counts. Pennsylvania taxes only eight specific classes of income, so plenty of people with substantial gross income, retirees most of all, have no Pennsylvania-taxable income at all and no obligation to file.
The Eight Classes That Count Toward the $33
Only income that falls into one of these categories counts as Pennsylvania-taxable income:2Pennsylvania Department of Revenue. Personal Income Tax
- Compensation: wages, salaries, tips, bonuses, commissions, and similar pay for services
- Interest not exempt by federal or state law
- Dividends paid out of a corporation’s earnings and profits
- Net profits from a business, profession, or farm
- Net gains from the sale or exchange of property
- Net income from rents, royalties, patents, and copyrights
- Income passed through from estates or trusts to beneficiaries
- Gambling and lottery winnings, including Pennsylvania Lottery cash prizes
Add up only what fits one of those buckets. If the total is more than $33, you file. If you had a loss in any class, you file regardless of the total, so the state has a record of it.1Pennsylvania Department of Revenue. Pennsylvania Personal Income Tax Return (PA-40) Filing Requirements
Income That Doesn’t Count
This is where Pennsylvania diverges sharply from federal rules. Distributions from 401(k) plans, IRAs, and traditional pensions generally fall outside the eight classes and are exempt from the state personal income tax. Social Security benefits are entirely exempt. Inheritances, life insurance proceeds, and certain public assistance payments are also outside the taxable classes.2Pennsylvania Department of Revenue. Personal Income Tax
None of that counts toward the $33 threshold. If a retiree’s income is entirely retirement distributions and Social Security, there is no filing obligation at all, which is one of the reasons Pennsylvania is often described as friendly to retirees despite applying its 3.07% rate to every dollar of taxable income.3Commonwealth of Pennsylvania Department of Revenue. Tax Rates
Residency Decides Which Income Counts
Before you add up the eight classes, you need to know how Pennsylvania classifies you, because residents are taxed on income from everywhere while nonresidents are taxed only on income sourced inside the state.
Pennsylvania uses two tests for full-year residency. The first is domicile: the place you treat as your true, permanent home and intend to return to after any absence. You can only have one domicile at a time, and if yours is in Pennsylvania the state taxes all eight classes of your income no matter where they were earned.4Pennsylvania Department of Revenue. Personal Income Tax Guide – Brief Overview and Filing Requirements The second is statutory residency: even if Pennsylvania is not your domicile, you count as a resident if you maintain a permanent place of abode in the state and spend more than 183 days there during the tax year, counted midnight to midnight.5Legal Information Institute. Pennsylvania Code 61 Pa Code 121.3 – Residence
If you fail both tests, you are a nonresident. Nonresidents file a PA-40 only when they earn income from Pennsylvania sources, such as wages for work performed in the state or profits from a Pennsylvania business.4Pennsylvania Department of Revenue. Personal Income Tax Guide – Brief Overview and Filing Requirements
If you moved into or out of Pennsylvania during the year, you are a part-year resident. You are taxed as a resident on all taxable income earned during the part of the year you held a Pennsylvania domicile, and as a nonresident for the rest, with Pennsylvania reaching only income sourced in the state during that portion. Both go on a single PA-40.6Pennsylvania Code and Bulletin. 61 Pa Code 121.8 – Method of Taxing Part-Year Residents
If You Live in PA but Work in a Reciprocal State (or Vice Versa)
Pennsylvania has reciprocal tax agreements with Indiana, Maryland, New Jersey, Ohio, Virginia, and West Virginia. If you live in Pennsylvania and work in one of these states, your wages are taxed only by Pennsylvania. If you live in one of those states and work in Pennsylvania, your wages are taxed only by your home state.7Pennsylvania Department of Revenue. Deductions and Credits
The agreements cover compensation only. Business profits, rental income, and other non-wage income you earn in a reciprocal state are not covered, and both states may try to tax them. In that case, the resident credit described below can offset the double tax.
Situations That Catch People Off Guard
Children and Other Dependents
Being claimed as a dependent on a parent’s federal return does not exempt a minor from filing in Pennsylvania. If a child earns more than $33 in Pennsylvania-taxable income, a PA-40 has to be filed in the child’s name. A parent or guardian typically handles the filing, but the obligation belongs to the child.1Pennsylvania Department of Revenue. Pennsylvania Personal Income Tax Return (PA-40) Filing Requirements
Active-Duty Military
Active-duty military pay earned while serving outside Pennsylvania is not taxable by the state. The exemption covers full-time active duty, federal active duty for training outside the Commonwealth, and income received by cadets and midshipmen at U.S. military academies.8Pennsylvania Department of Revenue. Military Pay for PA Personal Income Tax Purposes It applies to the five branches of the armed forces, but not to civilian Defense Department employees, Merchant Marines, or the Public Health Service unless they are incorporated into the armed forces during wartime or emergency. Non-military income, and active-duty pay for service performed inside Pennsylvania, can still push you over the $33 threshold.9Pennsylvania Department of Revenue. Should I Report My Active Military Pay on My PA Personal Income Tax Return?
Someone Who Died During the Year
When a taxpayer dies, their executor, administrator, or whoever is responsible for the decedent’s property files a final PA-40 covering income earned from January 1 through the date of death. The return is due by the normal April 15 deadline for the year of death, and whoever signs does so under penalties of perjury.
Estates and Trusts
Estates and trusts don’t use the PA-40. They file a separate PA-41 Fiduciary Income Tax Return, required if the estate or trust had more than $33 in Pennsylvania-taxable income or a loss in any class. The same 3.07% rate applies.10Pennsylvania Department of Revenue. 2025 PA Fiduciary Income Tax Return A beneficiary who receives income from an estate or trust reports it on their own PA-40 under the “income derived through estates or trusts” class. A guardian of a minor or incompetent person files a PA-40 for that individual rather than a PA-41.11Pennsylvania Department of Revenue. Estates, Trusts and Decedents
When You Should File Even If You Don’t Have To
Three situations are worth filing for even when your income sits below $33.
Withholding. If an employer took Pennsylvania tax out of your paychecks, filing a PA-40 is the only way to get it back. This hits part-time workers and students most often.
Tax Forgiveness. Pennsylvania’s Tax Forgiveness program can reduce or eliminate your state tax based on income and family size, and the limits are more generous than people assume. Full forgiveness runs up to $6,500 for a single filer with no dependents and up to $13,000 for a married couple with no children. Partial forgiveness reaches up to $8,750 for a single filer with no dependents and up to $34,250 for a married couple with two children.12Department of Revenue. Tax Forgiveness You claim it by filing a PA-40 with Schedule SP. Skip filing and you leave the credit on the table; combine Tax Forgiveness with withholding and you may be owed a full refund of everything that was withheld.13Pennsylvania Department of Revenue. REV-631 – Tax Forgiveness for PA Personal Income Tax
Resident credit for tax paid to another state. If you are a Pennsylvania resident who earned income in another state and paid income tax there, you can claim a resident credit on your PA-40 to avoid double taxation. The credit is the lesser of the actual tax paid to the other state or 3.07% of the income Pennsylvania sources to that state. You use Schedule G-L and attach a copy of the other state’s return. The credit does not apply to wages earned in a reciprocal state, because those states should not have taxed the wages at all. If one of them withheld anyway, your remedy is a refund request to that state, not a PA credit.7Pennsylvania Department of Revenue. Deductions and Credits
Deadline and What Happens If You File Late
The PA-40 is due April 15 following the close of the tax year. Pennsylvania will grant up to a six-month extension to file, but an extension to file is not an extension to pay. Any tax you owe is still due April 15, or interest and penalties start to run.14Pennsylvania Department of Revenue. Extension of Time to File
Miss the deadline without an approved extension and the penalty is 5% of the tax due for the first month, plus 5% for each additional month, up to 25%. The minimum penalty is $5 no matter how little tax is owed. Filing a fraudulent return or willfully evading the tax is a misdemeanor that can bring fines, imprisonment, or both.15Pennsylvania Code and Bulletin. 61 Pa Code 121.26 – Penalties for Failure to File or for Filing a Late Return The penalty is calculated against tax owed, so a late refund-side return does not trigger it; it does, however, delay your refund and shortens the window to claim it.