No, you cannot use last year's W-2 for a bigger refund this year on a 2024 return. Each tax year must be filed separately using the W-2 for the year matching the return. In other words, a 2023 W-2 will be reported on a 2023 1040.
If you did not file a tax return for 2023 and would like to do so now, you can still file that. Here is how to do so: File your 2023 taxes
