SSE is the last of the Big Six firms to announce a price rise in 2019, adding roughly 10% to two million customers' bills. But you can still save money - up to £348 per year- by switching energy supplier.
As with the other energy firms, SSE will increase its gas and electricity prices to the maximum permitted under the price cap from 1 April.
This equates to £117 per year extra on the bills of customers who use a medium amount of gas and electricity. Overall, these customers' bills will cost up to £1,253 per year.
British Gas and Scottish Power both announced similar price rises earlier this week, following EDF Energy, Eon and Npower's announcements last week. In total, energy customers will pay over £1bn extra for energy after 1 April.
Read on to find out if you're affected by SSE's price rise, plus what you can do to cut your energy bills.
The price increase applies if you're on SSE's standard variable tariff. This is the one you're most likely to be on if you have not switched energy firm or tariff, or you took no action when your last fixed deal with SSE finished.
If so, your bill will increase by 10% on average from 1 April. This adds up to £117 per year for a household which uses a medium amount of energy, but your exact bill will depend on how much gas and electricity you use.
Other variable tariffs from SSE will also be affected by the price rise. These include:
You can check the name of your tariff on your latest bill or online account.
If you are on a fixed deal, you won't be affected by the price rise until the end of your contract. But if you are on one of theaffected tariffs, you have until 1 April to switch.
At the start of the year, the government introduced a price cap on energy for customers on standard or default energy tariffs. These are out-of-contract deals that you'll likely to be on by default, rather than by having chosen them, and they're usually among the pricier tariffs available.
The price cap limits the amount customers can be charged per unit of electricity and gas used. Your actual bill depends on your total usage.
All of the Big Six energy companies have now said that they'll increase prices for customers to within £1 of the cap.
Alex Neill, Which? managing director of home services, said: 'Inevitably, SSE has fallen in line with the rest of the 'Big Six'. Two in five UK households will now be collectively hit with a billion pound price hike when their energy bills increase on the 1st of April.
'This is a huge blow for those who thought they would be protected by the regulator's price cap. Anyone staring down the barrel of this sharp rise should look to switch to a better deal now - before their bills go up.'
Prices are based on a dual-fuel tariff available in all regions in England, Scotland and Wales paying by monthly direct debit, with paperless bills.
Energy usage is based on Ofgem's annual average figures for a medium user (12,000kWh gas and 3,100kWh electricity). Data is from Energylinx. Prices given are averages across regions, are rounded to the nearest whole pound and correct on 20 February 2019.