TOMORROW we make arguably one of the most important decisions our lifetime.

Whether you want to remain or leave the EU, or if you are undecided, here's everything you need to know about polling day. 

When and where does voting take place?

Dorset Echo: Disaster banner ballot box.jpg for the homepage

Voting in the EU referndum is like the general election- you will need to go to your designated polliing station, which is printed on the poll card you would have received in the post. 

Polling stations are open from 7am to 10pm.

You do not need to take your poll card to vote.

Click here to find your polling station.

What happens when the polls close?

Voting closes at 10pm tomorrow night. 

Once they have been verified and tallied up, each local authority’s returning officer will announce how many votes have been cast for each side.

Votes for Weymouth and Portland will be counted at Weymouth Pavilion. Dorset Echo reporter Alex Peace will be bringing you the latest from this count. 

Votes for West Dorset will be counted at St Osmund's School, Dorchester. Dorset Echo's Harry Hogger will be bringing you the latest from this count. 

We will have a live blog on our website throughout the night. 

The result from the local counts will be published on the Electoral Commission website and reported to the regional count, which is taking place at Poole.

Where and when will the national result be declared?

The final result will be announced from Manchester Town Hall. 

We will have an idea of the outcome before it is announced. This is because once one side has more than half the total votes cast nationwide, we will know they have won. 

It is estimated this will be around 5am or 6am.

Once we know who has won, both sides will probably be asked to make a statement. But both counts will continue until every local authority is accounted for, finishing at around 8am.