Company Tax Returns
Making changes
You must usually make any changes (鈥榓mendments鈥�) within 12 months of the filing deadline.
You can:
- use commercial software
- use HMRC鈥檚 , if you sent your return this way
- write to or send a paper return to the Corporation Tax office
HMRC may check for errors in your Company Tax Return.
HMRC may charge you a penalty for errors.