Had 1099 for 2016 that included money not received the checks got lost . got checks in 01/2017 and got a 2017 1099 including the lost checks that were on my 2016 taxes

[mikey356]

The 2017 1099 included what I already paid in 2016

[AmyW · Accepted solution]

All tax documents must be entered with the year to which they were issued. If you need a duplicate 2016 1099, then you will want to contact the issuer.

If you filed a 2016 tax return, then you will want to amend it to include the 2016 1099.

If you want to amend a 2016 return, follow the steps in the article below: https://ttlc.intuit.com/replies/5114064

However, if you didn't file a 2016 tax return and have previous year's tax documents that have not been filed, you still complete your tax returns. You can purchase desktop software from previous years here. 

You can find more information about completing a past tax return in the article here.