Yes. There is more than one way you could handle this situation. The key is to ensure you and the IRS agree how to allocate your original refund to each tax year. As you alluded to, you could file an amended federal tax return and include a written request that the IRS allocate $945 from the original refund of $4,045 to the 2017 current tax year and apply the remainder of $3,100 to the 2018 future tax year. You should verify this amount is reported on your 2018 federal tax return. You may have to follow up with the IRS afterwards (especially if they still send a bill) to ensure the amounts have been properly allocated to the appropriate tax years.
[Edited 02.27.18
| 7:00PM PST]
