Thanks for your question
As the 2013 return will give rise to a liability over £100 then yes payments on account will be asked for.
However, if the income for this current year is half of what 2013 was, then you can ask to reduce payments on account, which you either do when completing the 2013 return online OR via HMRC online services, or by completing SA303 link here for that form http://www.hmrc.gov.uk/sa/forms/sa303.pdf
Or telephone HMRC after the return has been submitted (allow 24 hours for it to clear online)
If you file by a paper return (and have it in by 31/10/2013) then wait until you get the demand (mid December/early Jan) and then ring HMRC or send in SA303
I do apologise my opening sentence should have read
As the 2013 return will give rise to a liability over £1000 then yes payments on account will be asked for.
Please do let me know if you have any follow up questions., and if you could rate the level of service I have provided, it would be appreciated.