If you don't already have an arrangement in place, HMRC is open to instalment plans allowing you to pay what you owe over a period of time. A Time to Pay Arrangement (TTP)is typically allowed for 12 months; however, HMRC will consider longer payment arrangements in some instances((Trusted Source - GOV.UK - If you cannot pay your tax bill on time)). You can do this online as I'll cover in the section below. » MORE Read our full article on time to pay arrangements