Pennsylvania Estimated Tax Payments 2026: PA-40 ES Due Dates, the $14,000 Threshold, and Safe Harbor

Pennsylvania estimated tax payments for 2026 are due April 15, June 15, September 15, 2026, and January 15, 2027, and you must make them through myPATH or with Form PA-40 ES (I) if you expect to owe at least $430 of Pennsylvania income tax after withholding and credits, which is the tax on $14,000 of income that has no PA withholding. The January 15, 2027 payment is the only one left. It can be a regular 25% installment or, if your untaxed income only crossed $14,000 after August 31, the entire year's estimate in one payment.

Key takeaways:

• 2026 PA-40 ES dates: April 15, June 15, September 15, 2026, and January 15, 2027; only January is still ahead
• The trigger rose to $14,000 of income not subject to withholding ($430 of tax) for 2026, up from $11,000 in 2025, and climbs to $17,000 in 2027
• Safe harbor: the smaller of 90% of 2026 tax or 100% of your 2025 PA taxable income × 3.07%, with no 110% step-up for high earners
• The rate stays a flat 3.07% with no standard deduction; underpayment interest runs at 7% for 2026, figured on Form REV-1630
• Your local earned income tax is a separate set of estimates paid to your local collector, on April 15, July 15, October 15, and January 15

Save this cheat sheet — Pennsylvania's 2026 numbers in one image.

When Are PA Estimated Tax Payments Due in 2026?

Pennsylvania uses the federal calendar, per the Payment Due Dates Table in the 2026 REV-413 (I) instructions. The share you owe on each date depends on when you first met the requirement:

A due date on a weekend or holiday moves to the next business day. The last row matters right now: a side business that only passed $14,000 of untaxed income in October owes its whole 2026 estimate by January 15, 2027, with no installment due for the spring. Federal Form 1040-ES payments fall on the same four dates, and the estimated tax due-dates tool shows them side by side.

The 2027 schedule and threshold

For 2027 the same rules give April 15, June 15, September 15, 2027, and January 18, 2028, because January 15, 2028 is a Saturday and January 17 is Martin Luther King Jr. Day. The income threshold rises again to $17,000, about $522 of tax, and reaches $20,000 in 2028, per the REV-413 (I) phase-in table. The fiscal 2027 budget enacted in July 2026 left the 3.07% rate unchanged.

Who Has to Pay Pennsylvania Estimated Taxes?

You must make PA estimated payments when two things are true: you reasonably expect to owe at least $430 after withholding and credits, and your withholding and credits will fall short of the safe harbor described below. The rule covers residents, part-year residents, and nonresidents with Pennsylvania-source income. Typical income that triggers it, per REV-413 (I):

• Self-employment and business profits, including farming
• Interest, dividends, and gains from selling property
• Rents and royalties
• Income from estates and trusts, and most gambling winnings
• Wages earned in Indiana, Maryland, New Jersey, Ohio, Virginia, or West Virginia when the employer withholds no PA tax

That last item catches commuters. Pennsylvania's reciprocal agreements mean a resident who works in New Jersey pays income tax to Pennsylvania, not Trenton, but an out-of-state employer may not withhold PA tax at all. Our New Jersey estimated tax guide covers the other side of that border.

The threshold is new for most people. It was $8,000 through 2023 and has climbed each year since: $9,500 for 2024, $11,000 for 2025, $14,000 for 2026. Someone with $12,000 of side income paid estimates in 2025 and is off the hook in 2026.

Pennsylvania Safe Harbor: 90% of 2026 or 100% of 2025

The Department of Revenue imposes no underpayment penalty when timely payments and credits reach the smaller of two amounts, per REV-413 (I) and the Form REV-1630 exceptions:

Because the rate is the same for both years, the prior-year route equals 100% of your 2025 tax before credits. Pennsylvania has no 110% tier: the IRS demands 110% of last year's tax once prior-year AGI tops $150,000, while Harrisburg stays at 100% at any income.

Bruno, a freelance photographer in Pittsburgh's Lawrenceville neighborhood, had $40,000 of PA taxable income in 2025, his first full year in business, and expects $72,000 in 2026. His 2026 tax is $2,210.40. The prior-year route needs $40,000 × 3.07% = $1,228, well under 90% × $2,210.40 = $1,989.36, so he pays $307 on each of the four dates and settles the remaining $982.40 with his PA-40 in April 2027, penalty-free. Building Jupid, I keep meeting freelancers in exactly this spot: a growth year in which the prior-year route quietly defers almost half of the state bill to April.

When the safe harbor does NOT protect you

• You were a part-year resident in 2025 or didn't file. The prior-year route is off, so you must reach 90% of the 2026 tax
• You paid the full amount late. REV-1630 compares payments period by period, so a single January check leaves earlier periods underpaid if you knew about the income in spring
• You knew in April and waited. The one-payment January row is only for people who first met the requirement after August 31; if you knew in spring, each skipped period carries its own penalty

Work Out Your January 15 PA-40 ES Payment

How Much Is Pennsylvania Estimated Tax? 3.07% on Eight Classes

Pennsylvania levies a flat 3.07% on taxable income and, unlike the IRS, allows no standard deduction or personal exemption, per the Department of Revenue's personal income tax page. Income falls into eight classes (compensation, interest, dividends, net business profits, gains on property, rents and royalties, estate and trust income, and gambling winnings), and a loss in one class cannot offset income in another. A $10,000 loss on a rental property does not reduce the tax on $72,000 of photography profit.

The REV-414 (I) worksheet that comes with the instructions follows the same logic:

Pennsylvania computes business profit on its own PA Schedule C, which tracks the federal one closely, and federal adjustments such as the deduction for half of self-employment tax never touch the PA return. Bruno's federal side carries income tax plus 15.3% self-employment tax, which the Pennsylvania quarterly tax calculator adds to the state number.

How to Pay PA Estimated Taxes Online or by Mail

The Department of Revenue's payment page lists three routes:

1. myPATH: at mypath.pa.gov, choose Make a Payment on the homepage; no account is needed, and you can pay by bank withdrawal or card
2. Phone: ACI Payments at 1-800-2PAYTAX (1-800-272-9829), jurisdiction code 4800, with a 2.85% fee on credit cards ($1 minimum) or 1.85% on debit cards ($3.95 minimum)
3. Mail: the 2026 PA-40 ES (I) voucher with a check payable to "PA Dept. of Revenue", showing the last four digits of your Social Security number, "2026 PA-40 ES", and the quarter; send it to PA Department of Revenue, PO Box 280403, Harrisburg, PA 17128-0403, without staples (farmers use PO Box 280604, Harrisburg, PA 17128-0604)

Any single payment of $15,000 or more must be made electronically. A paper check at that size draws a penalty of 3% of the payment, capped at $500, per the voucher instructions. A late starter making one 100% January payment on a large year is the person most likely to hit this line.

What Is the Penalty for Underpaying PA Estimated Tax?

Pennsylvania's estimated underpayment penalty is an interest charge, applied to each short period for the days it stays unpaid, but never past the return due date. The rate follows the federal underpayment rate set each year: 7% for 2026, or 0.000192 per day under the REV-1611 table. It is simple interest: REV-1630 multiplies days × daily rate × underpayment, and the result goes on line 27 of the PA-40. If you skip the form, the department sends a preassessment or assessment notice with its own figure.

Suppose Bruno missed his $307 September 15 payment:

Both figures assume the 2027 rate stays at 7%; days after December 31 use whatever rate the department sets for 2027. The amounts are small next to the federal estimated tax penalty, which runs over the same months on a much larger federal installment.

When PA Estimated Payments Don't Apply

• Withholding covers you. If PA withholding and credits leave less than $430 owed, or your untaxed income stays under $14,000, no vouchers are needed
• You qualified for 100% Tax Forgiveness in 2025. Under Act 85 of 2012, the REV-1630 instructions say you owe no underpayment penalty for 2026
• You farm. If at least two-thirds of 2026 gross income comes from farming, you can pay the whole estimate by January 15, 2027, or file and pay in full by March 1, 2027 and skip estimates entirely
• Your income is retirement income. Social Security and distributions from eligible retirement plans after retirement age are not taxable in Pennsylvania, per the PIT Guide; an IRA withdrawal after 59½ with no federal penalty is excluded too
• You moved to Pennsylvania in 2026. You still owe estimates once the $430 test is met, but without a full-year 2025 PA-40 the prior-year route is closed, so aim at 90% of this year's tax

Local Taxes and Other Pennsylvania Traps

Local earned income tax is a separate system. Pennsylvania municipalities and school districts levy their own earned income tax on wages and net profits, collected by a local tax collector rather than the Department of Revenue. Under section 502(c) of the Local Tax Enabling Act, a self-employed resident declares estimated net profits by April 15 and pays four equal installments on April 15, July 15, October 15, and January 15, with the option to file the final local return by January 31 instead of paying the fourth. Keystone Collections Group's FAQ lists those dates, but collectors publish their own coupon schedules, so check the one yours sends. Ohio stacks school district income tax on top of the state return in a similar way. Bruno's Pittsburgh address carries a 3% resident rate (1% city, 2% school district), about $2,160 on $72,000 of profit, nearly as much as his state tax.

Philadelphia runs on a different clock. The city's Net Profits Tax is filed by April 15, and current-year estimates are due April 15 and June 15, each 25% of the prior year's tax, at 3.74% for residents and 3.43% for nonresidents for tax year 2025. No Net Profits Tax payment falls on January 15, and taxpayers who owe $5,000 or more must pay electronically.

There is no PTE election to soften the bill. Pennsylvania has no elective pass-through entity tax; SB 396, which would create one, has sat in the Senate Appropriations Committee since April 2, 2025. Partners and S corporation owners pay the 3.07% personally through their own estimates; for nonresident owners, the entity's nonresident withholding counts instead, and the worksheet subtracts it on line 16. New Jersey's Business Alternative Income Tax is the nearby example of the election Pennsylvania lacks.

How Jupid Helps

Pennsylvania's math is one multiplication, but it needs a current profit number, and so do your local collector's coupons. Jupid connects to your business bank account and categorizes each transaction automatically with 95.9% accuracy, so year-to-date net profit is ready when the January PA-40 ES and the local fourth-quarter payment come due on the same day. Ask the AI accountant in WhatsApp or iMessage how much the business has netted since January, or whether a late client payment pushed you past $14,000, and the answer arrives in the chat in real time. Try Jupid.

Sources

• 2026 REV-413 (I), Instructions for Estimating PA Personal Income Tax: $14,000/$430 threshold and phase-in, safe harbor, due dates table, farmers, REV-414 worksheet, mailing address, $15,000 electronic rule
• 2026 PA-40 ES (I), Declaration of Estimated Personal Income Tax: voucher and check instructions
• 2025 REV-1630, Underpayment of Estimated Tax by Individuals: exceptions, daily rate, Tax Forgiveness rule, PA-40 line 27
• PA Department of Revenue: What is the current interest rate? and REV-1611: 7% for 2026
• PA Department of Revenue: Make a Personal Income Tax Payment: myPATH and ACI fees
• PA Department of Revenue: Personal Income Tax and PIT Guide: Gross Compensation: 3.07% rate, eight classes, retirement income
• Local Tax Enabling Act, section 502(c): local estimated net profits schedule
• City of Pittsburgh: Taxes and City of Philadelphia: Net Profits Tax
• IRC § 6654: the federal 110% rule Pennsylvania does not copy

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Reviewed 2026-10-29. This guide is for general educational purposes and does not constitute tax, legal, or accounting advice. It reflects the 2026 REV-413 (I) and PA-40 ES (I), the 2025 REV-1630, and the Department of Revenue's 2026 interest rate; local earned income tax rates and collector schedules vary by municipality and school district. For advice specific to your situation, consult a qualified tax professional or the Pennsylvania Department of Revenue at revenue.pa.gov.