Tax Resources
Key deadlines, helpful links, and quick answers to keep your business on track all year.
Mark Your Calendar
Quick Access
Key Tax Deadlines
| Date | What's Due |
|---|---|
| January 15 | Fourth-quarter estimated tax payment for the prior year (Form 1040-ES). |
| January 31 | W-2s to employees and 1099-NEC forms to contractors. |
| March 15 | S corporation (1120-S) and partnership (1065) returns — or six-month extension requests. |
| April 15 | Individual (1040) and C corporation (1120) returns or extensions; first-quarter estimated payment. |
| June 15 | Second-quarter estimated tax payment. |
| September 15 | Third-quarter estimated payment; extended S corporation and partnership returns. |
| October 15 | Extended individual and C corporation returns. |
Helpful Links
IRS.govForms, payments, and federal tax information
Where's My Federal Refund?Track your IRS refund status
Pay the IRS OnlineDirect Pay, EFTPS, and payment plans
Oregon Department of RevenueState returns, payments, and Where's My Refund
California Franchise Tax BoardState returns, payments, and refund status
Apply for an EINFree federal employer ID number from the IRS
Good To Know
How Long Should You Keep Records?
| Records | Keep For |
|---|---|
| Tax returns | At least 7 years, along with the records that support them. |
| Payroll records | At least 4 years after the tax is due or paid. |
| Asset & property records | As long as you own the asset, plus 7 years after disposal. |
| Bank statements & receipts | 7 years is a safe rule of thumb for business documents. |
A quick note: deadlines shift when they fall on weekends or holidays, and state rules vary. This page is general information, not tax advice for your specific situation — when in doubt, ask us.