Can You File Taxes Without Last Year's Tax Return?
Digging through old files for a tax return that’s been misplaced, deleted, or simply never saved is a familiar kind of frustration right before a new filing season starts. The good news is that this year’s return doesn’t actually require the old one in hand — just one specific figure from it, in most cases.
The short answer
Filing this year’s return without a copy of last year’s is generally possible, since the current return mostly stands on its own using the current year’s income and documents. The one common exception is electronic filing, which often asks for a prior-year figure, usually adjusted gross income, purely to verify the filer’s identity.
Why the prior-year number matters for e-filing
Electronic filing systems generally use a prior-year figure as an identity check rather than as data that feeds into the actual tax calculation. It confirms that the person filing is who they say they are, similar in spirit to a security question, and it doesn’t get added into this year’s income or affect the math on the current return. Without that number on hand, the return can sometimes fail the e-file verification step even though everything else about it is accurate and complete.
How to retrieve a missing prior-year figure
- Check old records first. A saved PDF, a printed copy, or a bank or tax software account from the prior year often has the number without needing to request anything.
- Request a transcript. A tax account transcript generally shows the prior year’s adjusted gross income and can typically be requested directly, either online or by mail, when no copy of the return itself is available.
- Ask a prior preparer. If a professional or a tax software service prepared the earlier return, they may still have a copy or the specific figure on file.
- Use zero for certain first-time situations. Someone who didn’t file a return the prior year at all sometimes enters zero for that figure instead of leaving it blank, though this depends on the specific filing scenario.
A simplified example
Someone missing last year’s return but with access to a bank statement showing tax software payment, or an old email confirmation from filing, may be able to log back into that same account and pull the number directly rather than requesting an official transcript, which can take longer to arrive.
When the prior return matters beyond the single number
Occasionally more than just the identity-verification figure is genuinely useful, such as when carrying forward a capital loss from a previous year or tracking a multi-year comparison for planning purposes. In those cases, a transcript request generally covers the gap, since it reflects what was actually reported even without the original document. This is separate from situations involving a missing current-year W-2, which is a different document serving a different purpose in the filing process.
What to weigh
Waiting to file until a misplaced prior return turns up isn’t usually necessary, and delaying can create its own problems if it pushes filing past the deadline, especially for anyone also sorting out what happens when a return is filed late. Requesting a transcript ahead of time, before it’s actually needed under deadline pressure, tends to be the smoother approach, since processing a request can take some time depending on how it’s submitted.
A practical habit for future years
Saving a copy of every filed return, digital or paper, removes this scramble in future years, and many tax software platforms retain past returns automatically as long as the same account is used year over year. Until that habit is built, requesting a transcript remains the reliable fallback whenever a prior return has gone missing.