A number of price hikes that have been announced in recent weeks will come into effect overnight.
May 1 could be seen as a 'D-day' of sorts for Irish customers - with electric bills, gas bills, an increase in tax and even hairdressers set to see a rise.
The cost of living crisis shows no sign of slowing down either, with some food companies warning in the last few weeks that their products will start to be more expensive.
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That may be down to the war in Ukraine, or it could be down to other factors.
Here's what we know is definitely going up.
Electric Ireland
After other providers like Bord Gais, Energia, SSE Airtricity and PrePayPower.ie increased their costs in April, Electric Ireland customers will be affected on Sunday morning.
The cost of residential electricity will be going up 23.4% and gas prices by 24.8%.
The increase will equate to €24.80 per month on the average residential electricity bill and €18.35 per month on the average residential gas bill.
Commenting on the announcement at the time, Marguerite Sayers, executive director, Electric Ireland said: "We are acutely aware that the rising cost of living is causing difficulty for households across the country.
Flogas
Electric Ireland customers aren't the only ones which will be hit this week.
Flogas said it will increase its residential electricity prices by 27%, while there will be a 29% increase in its residential natural gas prices.
The higher rates will come into effect from May 7.
Hairdressers
A number of independent hairdressers have warned customers that they will be forced to bring up their prices as costs begin to rise for them.
One salon even went as far as to explain to customers exactly where the money is going, and to highlight the harsh reality that many business owners are facing.
She wrote: “As a hairdresser if I charge a client €100, €20 immediately goes on income tax, €9 goes to national insurance, leaving €71.
“Minus off that the cost of colour which varies per tube from €5.99 up to €11.99 depending on what brand or colour type requested.
“Some colours depending on the length/thickness use three, maybe three tubes. Say we use two tubes at a middle figure of €7.99 each so €15.98 - leaving €55.02.
“Then minus the business rates, insurance, peroxide, gloves, foil, water, gas, electric, heating, air conditioning, tea/coffee, waste disposal (I'm sure I've missed other costs off) - round that up to €15 per three hour appointment.
“This leaves approximately €40 profit - divide that by a 3 hour appointment it's around €13 an hour earned.”
Carbon tax
The planned increase in the carbon tax is also due to go ahead on May 1, and will see the price of home heating oil increase by €20 per filled tank and will see the average monthly gas bill jump by around €1.40.
Finance Minister Paschal Donohoe explained that this move was vital to help the public with the rise in the cost of living here, “but also in particular, to offset the increase in carbon tax.”
However. applications remain open for the Fuel Allowance payment for 2022/2023, which will start up again in September.
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