NO! You can't enter your info from your paychecks or by using last year's W2 as a sample. It won't work.
You have to wait for your employer to send you the W2. It is the tax summary of your wages for the year. They have to send it to you by Feb 1. You can't use your last paystub because there might be differences in the taxable amounts sent to the IRS. And you don't know what amoutnts to put in which boxes. There are several items that are deducted pre-tax that will affect your taxable gross income. Usually your last paystub does NOT match your W2! And you can't file until you get the actual W2.
See this article….
https://ttlc.intuit.com/questions/1899643-can-i-file-my-tax-return-using-my-last-pay-stub
