File your accounts and tax return online

Hi, I submitted an application to strike off my company, but my company is still active at the moment, awaiting for the 2 months notice to pass. At the same time, I am going to file my accounts and tax return online, but the HMRC webpage shows: You can't use this service Our records show that you're not authorised to use this service. If you're not registered for Corporation Tax You need to register for Corporation Tax on your Government Gateway account before you can use this service. Register for Corporation Tax services (opens in a new tab) If you're a tax agent This service is designed for individual use only. You can file using commercial Corporation Tax software (opens in a new tab), and you can still use your usual HMRC online services (opens in a new tab). What can I do now?

Hi
Unfortunately this forum is for general queries only and is intended to help you self-serve.
We are unable to provide specific advice tailored to individual circumstances.
Normally we would direct you to the advice provided at: Check if you can use the HMRC Corporation Tax online filing service but from your question it appears that you have already viewed this
I would therefore advise you to either: 
•    Use the Corporation Tax: general enquiries and contact the CT helpline on 0300 200 3410 with your company details so that we can look at the records for you  or 
•    Alternatively engage the services of a professional advisor/accountant to assist with your enquiry. 
Thank you.