The company has blamed rising wholesale energy prices on the price hike.
Alistair Phillips-Davies, energy supply director of SSE, said: "These pressures are compounded by the rising transmission, distribution and environmental costs which suppliers have to meet.
"You cannot resist indefinitely the impact of these issues and I am sorry that all of this has culminated in the price rises we are announcing today."
The decision to increase its gas and electricity prices makes SSE the final of the UK's 'Big Six' energy suppliers to raise its tariffs in the first three months of this year.
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.