Reverting to a maiden name after divorce is one of the most common name change situations in the UK. The good news is that, in many cases, you do not need a deed poll at all. If you want to go back to the exact name you had before you married, most organisations will accept your decree absolute (or decree of divorce in Scotland) combined with your original marriage certificate as sufficient evidence. The Passport Office, DVLA, and most banks all have processes for this.
However, there are situations where a deed poll is needed. If you were known by a different name before the marriage — not the name on your birth certificate — or if you want to take a name that is completely new rather than a reversion to a previous name, a deed poll is the right document. A deed poll is also useful if you want to streamline the process: rather than presenting two documents (decree absolute plus marriage certificate) and explaining their relationship, a single deed poll is unambiguous and self-contained.
Some people also prefer a deed poll for the sense of finality it provides — it is a clean declaration forward, rather than evidence of a previous state. Whichever route you choose, the effect is the same: your records are updated and you move forward in your chosen name. This service generates a correctly worded deed poll if that is the route you decide to take.