Well the 5th of April has come and gone.
Thats it you need to get your bookkeeping up to date and start to prepare the dreaded Self Assessment form.
My advice. Dont start it until you get your bookkeeping up to date and finished, make sure you have reconciled (checked) it matches with what was in your business bank account and that you have all your receipts and invoices accounted for.
Then Get into HMRC and complete your self assessment. Check the calculation page and make sure it looks correct.
Time to submit.
You then know how much you owe, however you dont need to pay that day, you can wait a few weeks or months. But dont leave it too late.
Then relax, thats it over for another year.