Hi Karen Footman,
If you continue to be self employed and your gross annual turnover form self employment is over £1000.00, then you will need to continue submitting tax returns, declaring your world-wide income.
This will include your employment income.
If your self employment ceases or your gross turnover is less than £1000, a tax return may no longer be required.
Please answer the questions here:
Check if you need to send a Self Assessment tax return,
To determing if a tax return is still required.
Thank you.