A move to Oregon on or after 1/1/2024 does not affect your tax filing for 2023. For 2023 you'll file a non-resident OR return in addition to your home state CA return.
If you use TurboTax to do your 2023 returns, be sure to complete the CA return before you do the non-resident OR return. Normally the non-resident state return would be completed first, but the situation is reversed in this case because CA and OR are "reverse-credit" states. This means that OR, your non-resident state, will grant you a credit for the taxes you pay to CA on the income taxed by both. With most states, the credit is granted by the resident state. CA uniquely has "reverse credit" agreements with a small number of states, one of which is Oregon.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
