Consumer expert Martin Lewis has confirmed that you are still entitled to your £6 a week tax break for working from home even if you spend some of the week in the office.
With workers increasingly heading back to the office part time, frequently for just a day or two a week, the news means you can still keep claiming the cash as if you were at home full time.
"It's confirmed this applies even if you're only required to work from home part of the week," Martin Tweeted.
"It's all thanks to allowance in place to cover the increase in your bills that results from spending all your time at home," Martin wrote in his blog on MoneysavingExpert.com.
"If your employer requires you to work at home, you can – and have always been able to – claim for increased costs due to working from home, eg, heating and electricity."
And the good news is you don't need to work out exactly how much more it's costing you.
"Apportioning these costs is tough. So instead you can, in simple terms, claim a rate of £6 a week. You can claim more if your costs are higher, but it becomes a much more labour intensive process," Martin wrote.
To get it, there are two main ways.
"If you normally do a self-assessment form, you can claim on it," Martin wrote.
"Yet for most people, this will simply require filling in a P87 form."
Martin said you can do this online with a P87 form using your Government Gateway account or by filling out a postal P87 form.
"You'll be asked for your employer's name and PAYE reference (which you can find on your payslip or P60), and your job title," Martin said.
"For postal P87s, you'll also need your national insurance number."
He said the key part was the "Using your home as an office" section.
For the online form, Martin said it's easiest to put £6 for each week spent at home in the "amount you have paid" section and £0 in the "amount paid to you by your employer" section if they haven't boosted your wages.
If you're claiming through the postal form, you need to add a "Using your home as an office" expense in the "Other expenses" section manually.
"Once you've submitted the claim, if you do it online you may hear back within a couple of weeks. However, obviously if HMRC is under pressure it may take longer," Martin said.
