Pennsylvania estimated tax payments for 2026
Pennsylvania's income tax rate is a flat 3.07%. You generally have to make estimated payments for 2026 if you can reasonably expect to owe at least $430 after withholding and credits, which works out to $14,000 of income that isn't subject to employer withholding.
The form is Form PA-40 ES (I), and you can generally pay online instead of mailing it.
| Payment due | Share of the year's required payment |
|---|---|
| April 15, 2026 | 25% |
| June 15, 2026 | 25% |
| September 15, 2026 | 25% |
| January 15, 2027 | 25% |