You probably already know that most Americans have to file their 2018 federal tax return by April 15, 2019 (as we told you earlier). For most states with an income tax (there are nine states with no income tax), the state return is also due on April 15 this year. However, some states give you more time to file — such as Oklahoma.
States With Tax Deadlines After April 15 in 2019
| State | Due Date |
|---|---|
| Delaware | April 30 |
| Hawaii | April 22 |
| Iowa | April 30 |
| Louisiana | May 15 |
| Maine | April 17 |
| Massachusetts | April 17 |
| New Mexico | April 30 (if e-filed) |
| Oklahoma | April 22 (if e-filed) |
| Virginia | May 1 |
If you want an extra week after the 2018 federal tax deadline to file Oklahoma Form 511, then e-file your state return. The due date for paper Oklahoma returns is April 15, 2019 (the same as the federal due date), but the deadline is shifted to April 22 if you file your return electronically.
Can't hit the deadline? Don't worry...the Sooner State will honor any federal filing extension if no Oklahoma tax is due. (You must attach a copy of the federal extension to your Oklahoma return.) If your federal return is not extended or Oklahoma tax is owed, a six-month state filing extension can still be requested using Form 504-I. Note, however, that 90% of your Oklahoma tax liability must be paid by the original due date to avoid penalties. Interest on any outstanding balance will be charged from the original due date of the return no matter what.
Sign up for Kiplinger’s Free E-Newsletters
Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.
Profit and prosper with the best of expert advice - straight to your e-mail.
We recommend filing both federal and state returns at the same time if possible. State returns typically "piggyback" off the federal return, so it's usually easier to do them at the same time. There's also a better chance of avoiding discrepancies if you do them together. However, if that's not possible, having an extra week to file your Oklahoma return can help. It gives you more time to focus on getting your federal return off before the April 15 deadline and then to get your state return just right.
For information about other states with delayed tax filing deadlines, see 9 States Where You Can File Your State Tax Return After April 15.
-
December 31 RMD Deadline: What to Know and What to DoTax Deadlines The year-end deadline for required minimum distributions is critical for many retirees.
-
Top Tax Stories of 2024 and Key Changes to Watch for 2025Tax News The Kiplinger tax team is looking back at popular tax stories and looking ahead to potential tax changes in the new year.
-
Kiplinger's Tax Map for Middle-Class Families: About Our Methodologystate tax The research behind our judgments.
-
Retirees, Make These Midyear Moves to Cut Next Year's Tax BillTax Breaks Save money next April by making these six hot-as-July tax moves.
-
Estimated Payments or Withholding in Retirement? Here's Some GuidanceBudgeting You generally must pay taxes throughout the year on your retirement income. But it isn't always clear whether withholding or estimated tax payments is the best way to pay.
-
How to Cut Your 2021 Tax BillTax Breaks Our guidance could help you claim a higher refund or reduce the amount you owe.
-
Why This Tax Filing Season Could Be UglyCoronavirus and Your Money National Taxpayer Advocate Erin M. Collins warns the agency will continue to struggle with tight budgets and backlogs. Her advice: File electronically!
-
Con Artists Target People Who Owe The IRS MoneyScams In one scheme, thieves will offer to "help" you pay back taxes, only to leave you on the hook for expensive fees in addition to the taxes.
-
Cash-Rich States Lower TaxesTax Breaks The economic turnaround sparked a wave of cuts in state tax rates. But some say the efforts could backfire.
-
The Financial Effects of Losing a SpouseFinancial Planning Even amid grief, it's important to reassess your finances. With the loss of your spouse's income, you may find yourself in a lower tax bracket or that you qualify for new deductions or credits.
