No. A tax return has to be filed within three years from the original due date for a tax refund.
Go to IRS Form 1040X instructions - https://www.irs.gov/pub/irs-pdf/i1040x.pdf
Generally, for a credit or refund, you must file Form 1040X within 3 years (including extensions) after the date you filed your original return or within 2 years after the date you paid the tax, whichever is later
For tax year 2013 the tax return or the amended tax return with a tax refund, without extension, had to be filed on or before April 15, 2017.
No. A tax return has to be filed within three years from the original due date for a tax refund.
Go to IRS Form 1040X instructions - https://www.irs.gov/pub/irs-pdf/i1040x.pdf
Generally, for a credit or refund, you must file Form 1040X within 3 years (including extensions) after the date you filed your original return or within 2 years after the date you paid the tax, whichever is later
For tax year 2013 the tax return or the amended tax return with a tax refund, without extension, had to be filed on or before April 15, 2017.