David Cameron pledged to raise the income tax threshold to £12,500 and raise the earnings point at which people pay the higher rate to £50,000
He promised to protect the NHS in England from spending cuts until 2020 and end exclusive zero-hours contracts
The speech came after former Conservative donor Arron Banks defected to UKIP
Other speakers included Foreign Secretary Philip Hammond, Defence Secretary Michael Fallon and International Development Secretary Justine Greening
The prime minister says the past four years of government have been about "laying the foundations" for Britain's future growth by steering the economy to recovery - but that the next five years will be about improving people's living standards. It's about "you, and your family - and helping you to get on", he adds. But he warns that nothing comes easy - and says the British public know this.
I believe in something for something, not something for nothing, David Cameron tells conference. He stresses his deep patriotism and desire to make Britain a place that everyone is proud to call home. This is not just about making the lines on the graph go in the right direction - it is about helping people to live better lives, he adds. A country that rewards hard work, "not a free-for-all, but a chance for all".
David Cameron says he wants to secure a working majority at the general election, telling conference that entering into coalition with the Lib Dems was not what he wanted to do but what he had to do. He's now setting out his vision for Britain's future.
David Cameron says he has one more task for William Hague - to ensure "fairness" in the UK's constitutional settlement. He says further devolved powers for Scotland must be matched by greater English devolution - and vows English votes for English laws.
tweets:, external Having met Michael Gove's puppy he's right. You would trust it more than Ed Miliband to do down Putin
David Cameron draws laughter from the crowd as he attempts to impersonate ex-Conservative leader William Hague. He says he owes an enormous debt of gratitude to Mr Hague, who is standing down as an MP at the general election. Activists give Mr Hague a standing ovation.
David Cameron highlights the UK's role in military operations against IS militants in Iraq - and says there is no walk-on-by option. He says the Conservatives will do whatever it takes to keep the country safe. To British nationals who go abroad to jihadist wars in Syria and Iraq, Mr Cameron sends a message: "You are an enemy of the UK and you should expect to be treated as such."
David Cameron tells conference he wants to set out how to build a Britain that "everyone is proud to call home". He pays tribute to UK combat troops in Afghanistan - who are returning from operations at the end of the year. Activists applaud. He goes on to stress the threat posed by Islamist extremism which has found a "hellish crucible" with IS in Iraq.
tweets:, external "The run up to that referendum was the most nerve-racking of my life" says Cameron. Good honest admission #cpc14
David Cameron opens by talking about the Scottish independence referendum. He tells conference of his pride at being able to stand there as prime minister "of four nations in one United Kingdom". He pays tribute to Scottish Conservative leader Ruth Davidson. He describes the lead-up to the referendum as one of the "most nervous weeks of my life".
Activists are on their feet as David Cameron takes to the stage. Union flags are being waved. His cabinet is lined up along the front row, clapping.
tweets:, external The Killers providing the soundtrack to warm-up video for Cameron speech at #cpc14. Will PM be Mr Brightside? See what I did there.
Daily Politics
Live on BBC Two
Danny Finkelstein, columnist for The Times and a Conservative peer, says the confidence in the Conservative Party this week is based on the fact that Ed Miliband had a "very bad week".
The audience is being treated to a short film before the leader's speech. David Cameron's wife, Samantha, has just taken her seat.
tweets:, external Gove says he would trust his Bichon Frisée puppy dog Snowy over Ed Miliband to face down Putin
tweets:, external Theresa May leadership stakes go up another notch as Michael Gove refers to her as "The Iron Lady" #cpc14
Michael Gove takes a swipe at Labour's record in office. He says the only way to secure Britain's future is with a Conservative government led by David Cameron. Ed Miliband cannot provide leadership as he's never offered anything other than a "warm bath of cliche", Mr Gove tells the hall. He comments that Mr Miliband's stance on UK air strikes against IS in Iraq and Syria was "as reassuring as a Kleenex parachute".