Can I use this system to do my Corporation tax return

Thank you for reaching out to us here on the Community page, r-forester. 

QuickBooks Online currently doesn't support annual submissions of corporation tax returns.  
 

Additionally, you're required to use MTD to submit your VAT returns if you're a business owner with an annual taxable turnover above the £85k threshold. 

For more details, you can check out this article to get additional insight about Making Tax Digital (MTD) for VAT with QuickBooks Online.

Feel free to post again if you have additional questions. I'll be here to guide you more.