Hi, thank you for using Intuit TurboTax community
Entries are required for both s100/s125 and schedule 8. The amortization would be shown on s100/s125 for book purposes and are adjusted on schedule 1 to add the book amortization back to income. Schedule 8 is then used to calculate the CCA allowed for tax purposes. So, book amortization is added back on schedule 1 and the allowed CCA is subtracted from net income on schedule 1.
Hope this helps