The taxman says three and a half million people are due a refund, but two million will have to fork out for underpaid tax.
How to cut the cost of your supermarket shop
With food prices still high, it's essential households do everything they can to keep their shopping bills from spiralling.
But what can you do? Switching to cheaper brands is an obvious - and very effective - way to slash bills. Many households have already done this.
But it's by no means the only option. By changing when, where and how we shop, we can buy exactly the same goods we normally would at a drastically reduced cost.
Here, we take a look at some of the most effective tips we've come across. Of course, this is by no means a definitive list, so please share your own bill-busting suggestions in the comments section below.
Before you shop
We'll start on a fairly obvious point here, but you need to know exactly what it is you need before you start shopping.
Take the time to check what you have in your home in order to avoid ending up with a mountain of pasta or milk.
"This is especially wasteful when it comes to fresh and perishable items that will then go to waste as you simply can't use everything before it expires," says Duncan Jennings, co-founder of VoucherCodes.co.uk
Speaking of avoiding waste, those who shop weekly might consider drawing up a meal plan so that you know what you will use (although some might find this too restrictive).
For anyone who shops online, try and be flexible when booking a delivery slot - supermarkets will charge significantly more for sought-after times such as shortly after work. Shifting your delivery slot by a couple of hours could halve your costs.
Finally, have a look around online for vouchers before you buy, using sites to get deals saves extra money on the shop and doesn't take any time at all.
At the shops
Supermarkets have a host of tricks to get you to spend more, so stick as closely to your shopping list as possible to avoid impulse buys.
Here's a fairly well-known tip but one that's worth mentioning again: if you're going supermarket shopping, go later in the day when many fresh items will have been reduced.
"Often these appear to be a false economy as they are going out-of-date but many of the items can be frozen and then eaten at a later date," suggests Jennings. "Look out for markdowns and think about using your freezer wisely."
Avoid the mistake of simply assuming multipacks or bigger packs automatically mean better value. Whether through individual shop error or a sneaky marketing ploy, it can often work out cheaper to buy numerous smaller individual packages than bigger or multipacks. Yes, it's a pain to have to calculate these things as it adds time to an already dreary experience, but it can save you money.
When you're at the checkout, don't forget to make use of any loyalty cards - most major supermarkets have some kind of scheme and you may as well get something back for buying things you needed anyway, no matter how small.
Similarly, consider paying for your shopping using a rewards or cashback credit card then paying it off straight away. It all adds up in the end.
Finally, Vouchercodes' Jennings suggests that you only take serial bargain-hunting so far.
"Shop around, but not too much. Everyone wants to save money and get the best price they can on essential items, however supermarket hoppers can actually spend more in petrol - or separate delivery charges - shopping around to get the best price than just visiting one supermarket."
Things to remember for your next shop
For those who shop online, don't simply re-order your previous shopping list or even select items straight from there for the sake of simplicity. Why? Many of your earlier purchases may have been on a special deal that has since expired or, conversely, you may miss out on a new offer.
It takes longer, but if you want to save money then it's definitely worth it.
As always, remember that loyalty never pays. Many supermarkets will offer brilliant vouchers in order to tempt you to shop with them - you can get £10 to £15 off your first shop with some of the major supermarkets (usually reserved for online shopping), with no obligation to shop with them again.
Have your own tips to share with other MSN Money readers? Add them in the comment section below or get in touch on Twitter @msnmoneydamian
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So, MSN seems to think we are all absolutely stupid and need advice on how to do our shopping; is this supposed to be helpful, condescending more like.
I've been counting the pennies for years, and there is no magic formular to cheaper goods other than the holesale hanging of all the rich bastards that make life so miserable for normal people just because it makes them feel richer to have poorer neighbours.
Coming at a time when the poorest of us has been doing that for years and only now cannot afford the usually cheap brands, now have to pay more for what we would normally buy, Get Stuffed.
I am growing my own food in the housing association garden where I live. he rent is too high for the property, there are no jobs in the area, and Nick Clegg is still holding out his hand to the mighty rich in an inept hope he will be overlooked as a 'LIBERAL' politician; the only time the liberals get to power is during a war that some other party started (tory scum).
The people of this country; if there are any still in this country, apart from the thick and stupid middle classes, should be more intune with the modus operandi, the country has been fleeced, America has done the most evil thing in history of biblical proportions, and we are all wondering how to sve a penny on our Sainsbury's Cumberland sausages.. or our M&S Sun dried donkey turds in Sharon Osbournes mouth.. get a life England and start being English again.. rant rant rant.. (an it's not colonial either)
I can't wait for american payback.. it's a cold world out there.. and it's coming to a town near you sooner than you think.
Richard Ashton - Supermarket car parks are free - you kn ob cheese.
Other guy who probably goes around blaming everbody else for his sad life - you plonker.
Yeahnice article, i like it.
Quote "It takes longer, but if you want to save money then it's definitely worth it." Not if you stay too long in the car park and have to pay more there.
There is so much more wrong with this, but I saw this one straight away. Time is money and we all have lots to do.
And who ever reorders the same groceries online week after week, month after month?
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