I did not file taxes between 2014-2016 but had incurred capital losses during those years.

Unfortunately, the only way to claim capital losses that occur in any tax year is to file a tax return for that year. Even if you had no taxable income, filing a return allows capital losses to be carried forward to future tax years.

Additional Information

• What is a capital loss carryover?
• How is a capital gain or loss calculated?
• TurboTax Prior Year Products

Thank you for your response. Can I get some instructions on how to file tax returns for years 2014-2016 on TurboTax? Cheers.

To complete prior year tax returns (2014 thru 2016) using TurboTax you will need to purchase and download each tax year separately from this website: TurboTax Prior Year Products

Thank you once again. For Prior Year taxes, is the deadline to file still the same (April 17th)? Cheers.

You may file a prior year return at any time. But you have only three years from the original filing date if you expect a refund for that year.