Yes, Sequestration does affect your credit file.
Usually, credit reference agencies will hold information about Sequestration for 6 years from when it was first granted. Your details will be also added to the Register of Insolvencies for 5 years.
Your credit score can be repaired thereafter, however, caution should be applied as it is often a legal requirement for you to disclose your Sequestration when you apply for a mortgage and therefore you may find your application rejected if you don’t.
If your credit file is important to you – You may consider looking into alternative Scottish debt solutions such as Trust Deeds and the Debt Arrangement Scheme.