Savers can now choose from five easy-access accounts paying 4 per cent or more.
Today, four more providers started paying 4 per cent on their bread and butter accounts, joining Coventry Building Society, which launched its 4 per cent deal last week.
Principality Building Society, Britain's sixth largest mutual and Sainsbury's Bank now claim top spot on This is Money's independent best buy savings tables with 4.01 per cent rates.
Someone putting £10,000 in either account can expect to earn £401 of interest over the course of a year. Albeit, if rates remain the same.
However, there are limitations with both the best buy deals.
Savers can only make two withdrawals per calendar year from Principality's account. Although it can be closed at any time the closure will also count as a withdrawal.
Meanwhile, Sainsbury's Bank's deal limits savers to three withdrawals each year. Anymore than that and their rate will be slashed to 1 per cent.
It's also worth pointing out that the first £1,000 held in the Sainbury's account will only earn 1.15 per cent. It's the balance between £1,000 and £500,000 that'll earn the 4.01 rate.
The savings and investment app, Chip, is offering 4 per cent - without any restrictions on withdrawals. Although savers will need to open and manage the account through its mobile app.
It is Financial Services Compensation Scheme protected, meaning saver deposits are protected up to £85,000 per person.
GB Bank is also offering a 4 per cent rate via the savings platform, Raisin UK*.
Raisin is a savings marketplace which offers access to multiple savings products and banks, but, instead of having to open account with each provider individually, savers only need to register once.
Savings rates have been climbing at speed in recent weeks with banks battling each other in order to take top spot and attract customers.
The Monetary Policy Committee (MPC) will meet this Thursday, with many expecting them to hike the base rate from 4.5 per cent to either 4.75 per cent or 5 per cent.
Market commentators are viewing today's rate hikes as pre-emptive moves ahead of the base rate decision on Thursday.
James Blower, founder of website, Savings Guru, says: 'These hikes show these providers are expecting to see an increase to at least 4.75 per cent.
'We will certainly see further movements late this week and early next week if there is an increase.
'There's been less moves ahead of the meeting this time as there's more uncertainty about where rates are going, so providers are waiting to see this time.'
Andrew Hagger, personal finance expert at MoneyComms, agrees. He says: 'Some providers are stealing a march on their competitors and getting their increases in early to get some valuable best buy exposure.'
Markets now expect that the Bank of England will raise the base rate to 5.75 per cent later this year. Some traders are even betting it on it getting to 6 per cent.
Hagger adds: 'If the base rate reaches either 5.75 per cent or 6 per cent as many are predicting then we may even see a 5 per cent easy-access savings rates.'