WASHINGTON — As of April 18, almost 46 million returns were e-filed from home computers, more than the total from home computers for all of 2013. The IRS has received more than 131 million returns, of which 88 percent were e-filed.

The IRS also projects that almost five million taxpayers will amend their returns by filing Form 1040X during 2014. Taxpayers who need to amend their returns should file this form only after filing the original return. Generally, for a credit or refund, taxpayers must file Form 1040X within three years, including extensions, after the date they filed their original return or within two years after the date they paid the tax, whichever is later. For most people, this means that returns for tax year 2011 or later can still be amended.

This year, many same-sex couples may want to consider filing amended returns. A same sex couple, legally married in a state or foreign country that recognizes their marriage, is now considered married for tax purposes. This is true regardless of whether or not the couple lives in a jurisdiction that recognizes same-sex marriage.

For returns originally filed before Sept. 16, 2013, legally married same sex couples have the option of filing amended returns to change their filing status to married filing separately or married filing jointly. But they are not required to change their filing status on a prior return, even if they amend that return for another reason. In either case, their amended return must be consistent with the filing status they have chosen. Further details are available on IRS.gov.

As all amended returns must be filed on paper, allow up to 12 weeks for Form 1040X to be processed. Starting 3 weeks after filing their amended returns, taxpayers can use the “Where’s My Amended Tax Return?” tool on IRS.gov to check the status.

The filing season statistics table follows.

Most people stop thinking about taxes after they file their tax return. But there’s no better time to start tax planning than right now. And it’s never too early to set up a smart recordkeeping system. Here are six IRS tips to help you start to plan for this year’s taxes:

1. Take action when life changes occur.  Some life events, like a change in marital status, the birth of a child or buying a home, can change the amount of taxes you owe. When such events occur during the year, you may need to change the amount of tax taken out of your pay. To do that, you must file a new Form W-4, Employee’s Withholding Allowance Certificate, with your employer. Use the IRS Withholding Calculator on IRS.gov to help you fill out the form. If you receive advance payments of the premium tax credit it is important that you report changes in circumstances, such as changes in your income or family size, to your Health Insurance Marketplace.
2. Keep records safe.  Put your 2013 tax return and supporting records in a safe place. That way if you ever need to refer to your return, you’ll know where to find it. For example, you may need a copy of your return if you apply for a home loan or financial aid. You can also use it as a guide when you do next year’s tax return.
3. Stay organized.  Make sure your family puts tax records in the same place during the year. This will avoid a search for misplaced records come tax time next year.
4. Shop for a tax preparer.  If you want to hire a tax preparer to help you with tax planning, start your search now. Choose a tax preparer wisely. You are responsible for the accuracy of your tax return no matter who prepares it. Find tips for choosing a preparer at IRS.gov.
5. Think about itemizing.  If you usually claim a standard deduction on your tax return, you may be able to lower your taxes if you itemize deductions instead. A donation to charity could mean some tax savings. See the instructions for Schedule A, Itemized Deductions, for a list of deductions.
6. Keep up with changes.  Subscribe to IRS Tax Tips to get emails about tax law changes, how to save money and much more. You can also get Tips on IRS.gov or IRS2Go, the IRS’s mobile app. The IRS issues tips each weekday in the tax filing season and three days a week in summer.

Remember, a little planning now can pay off big at tax time next year.