Yes, the entity business return is based on the first day of the tax year.  Because they were both in 2025, they will both use 2025 forms.

If the business is a pass-through entity that issues K-1s, the K-1s are entered on the 1040 based on the last day of the entity tax year.  The means the K-1 for 2/1/25 to 2/28/25 would go on the 2025 Form 1040 and the K-1 for 3/1/25 to 2/28/26 would go on the 2026 Form 1040.