Year-End Accounts and Tax Prep

I need help preparing accounts and tax reports for the last year. This is the second year of this task, and I have a limited number of transactions.

Transactions involve only expenses and purchases.

Records are currently seperate invoices and need to be kept in Excel spreadsheets.
Number of transactions is not very big.

Ideal skills and experience:
- Proficiency in Excel
- Experience with simple accounts and tax preparation
- Attention to detail
- Previous experience in handling similar projects