The Independent Parliamentary Standards Authority (Ipsa) is expected to give the all-clear for the raise from £67,060 to £74,000 later this year.
It will backdated to the day after the General Election so new MPs will also benefit. This alone will cost the taxpayer £1.3 million.
A spokesperson for the PM said: "He wants Ipsa to reconsider. Ipsa has a statutory responsibility to do so at the start of this Parliament before this comes into effect.
"He very much urges it to take the opportunity it now has to come to a different view. We are in a period of ongoing public sector pay restraint."
Cameron has been opposed to the plan since its inception in 2013 and both Ed Miliband and Nick Clegg pledging to shun the extra money.
Mathew Sinclair, chief executive of the TaxPayers' Alliance campaign group, said at the time: "Taxpayers will be furious that the pay rise comes at a time when MPs urge public pay restraint and the Chancellor tells us he can't afford to ease the burden of taxes on hard-pressed households and businesses.
"Ipsa's own polling and research shows that the current level of pay to be broadly fair and that the public simply do not back the increase.
"This announcement amounts to an unaccountable quango putting up two fingers to taxpayers. The rise must be rejected."
An Ipsa spokesman said: "We carried out two public consultation exercises in 2012 and 2013.
"In December 2013 we reached a decision that there should be a package of changes, including pension reform, ending resettlement payments and increasing MPs’ pay to £74,000.
"The overall package will add no extra cost to the taxpayer.”
10 Ways To Trick Your Boss Into Giving You A Pay Rise
Know What To Ask For(01 of10)
Open Image ModalKnow When To Ask(02 of10)
Open Image ModalSince most organisations think about raising salaries on an annual or six-month basis, you want to ready yourself to negotiate a pay rise around those key points in the year."Get yourself ready for negotiations in the run-up to a pay review," North recommends. "If you know it's happening on the first of January and you come and talk to me in April, as a boss, I will struggle with that and you will be seen as a prima donna - which is something you don't want. "Think about your negotiating position in advance so you can have these conversations with the right people at the right time." (credit:Mark Hunt via Getty Images)
Keep A Scorecard(03 of10)
Open Image ModalAnother tip for getting the boss to give you that pay rise? Keep track of what you've done as you're doing it - get feedback in writing from colleagues and bosses about your work, package it up and keep it handy for when negotiations take place."This way, you're seen as somebody who is organsied, competent, and who a competitor would love to have and would pay a premium for," says North. "It's the individual's responsibility as well as the organisation's. The boss needs to hear you're doing a great job regularly." (credit:Hemera Technologies via Getty Images)
Build A Business Case(04 of10)
Open Image Modal"The level of objectivity relative to subjectivity when it comes to giving pay rise is amazingly low," says North. "It's not about what you’ve done so much as whether your face fits and what your relationship is with people."Spend time making sure that anyone who advocates for you can absolutely state what you've done. They should be able to say what you did well, what you've changed, what you managed to achieve and what the impact has been - this will ensure there is objectivity when it comes to reviewing your case. (credit:Fuse via Getty Images)
Know Your Value When You Get Hired(05 of10)
Open Image ModalTo ensure that you're hired at the salary you want, you need to understand your market value, according to North (recognise where you come from in terms of qualifications and take an objective view of your context). He also recommends doing your research about the organisation you're interviewing with beforehand (check out their annual accounts) - having a good understanding of what the company's position is can be helpful when coming to negotiate with them and will help you gain confidence so that you don't undersell yourself in pursuit of the dream job. (credit:Chris Ryan via Getty Images)
Know Your Boss's Position(06 of10)
Open Image Modal"Most times, people don't have a good understanding of how processes like this work," says North. "The question to ask is, 'Which conversation is my boss in? What does my boss need to have from me in order to advocate for me?" (credit:Digital Vision. via Getty Images)
Eliminate Distractions(07 of10)
Open Image ModalBefore an important negotiation with your boss, take care of yourself (drink plenty of water, get lots of rest the night before). Also, in the meeting, eliminate any distractions (no mobiles or tablets). "Whether it's your boss or the HR professional, have your conversation with someone who is wholly present," says North. (credit:Simon Charlton via Getty Images)
Know Your Options(08 of10)
Open Image Modal"Organisations believe that once they’ve contracted you to work for them they have you lock, stock and barrel," says North. "Talented people have choices - you earn good money when you move, not by staying where you are. You want to make it crystal clear - without threatening - that as a professional you have a choice." (credit:Buero Monaco via Getty Images)
Start With Your Main Objective(09 of10)
Open Image ModalWhen you finally get into your pay rise meeting, don't dawdle. "Begin negotiations with the end in mind," advises North. "State your objective at the appropriate time - "for example, I believe I am being paid 20% below the market rate" - and be clear about your boundaries and how much scope for flexibility you’re willing to allow."When you're negotiating, remember to be respectful, polite and confident - without raising your voice. (credit:AntonioGuillem via Getty Images)
Know Your Allies(10 of10)
Open Image ModalYour boss isn't the only person who controls whether or not you get your pay rise. Find out who else you need to advocate for you - and get them on side. (credit:Morsa Images via Getty Images)