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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Aibu most people don't know rental income is taxable?

158 replies

sicknessmedi · 23/10/2025 22:42

Most people don't realize that if you have a second home and rent it out, you have to declare rental income as income and pay tax?

OP posts:
Lionfisher · 23/10/2025 23:09

sicknessmedi · 23/10/2025 22:47

Do you gatekeep the posts? You don't need to post

It’s not entirely uncalled for I was trying to work it out to.…

.. are you posting to see if people really didn’t realise (spoiler alert I can’t think of anyone sensible who wouldn’t)

.. were you pleased when you found out yourself (I think it’s a good thing)

.. what do you think it explains, eg hatred towards landlords because people think they don’t pay tax?

.. and has knowing this changed what you think about anything, if so what and why?

WhatdidIforget · 23/10/2025 23:10

I have come across (in a voluntary role I do) lots of landlords who didn't understand that - just as with any business - they had to budget for expenses eg. Routine maintenance, repairs, void periods. What kind of idiot doesn't set money aside for repairs and maintenance. It's staggering. So sadly I can well believe that some also don't realise they have to pay income tax on an income

HateMyselfToo · 23/10/2025 23:11

I would think most people know you have to pay tax on income.
HMRC do loads of adverts about tax returns and it would be impossible to fill out a tax return and NOT know as it is a specific question.

TheSmallAssassin · 23/10/2025 23:12

How would you not know that rental income is taxable? I'm not a landlord, but it seems obvious to me.

snoffle · 23/10/2025 23:14

Until the law changed in 2015, landlords could often not pay income tax on rental income, as you only had to pay tax on the profits. So, if the rent was similar to the mortgage, that mortgage payment would be an expense, therefore no income tax due. Maybe some people aren't aware of the change.

MrsSkylerWhite · 23/10/2025 23:15

Surely that’s glaringly obvious?

Slightyamusedandsilly · 23/10/2025 23:17

sicknessmedi · 23/10/2025 22:47

Do you gatekeep the posts? You don't need to post

Everyone knows this. Other than you seemingly.

Notmymarmosets · 23/10/2025 23:24

Rent a room scheme allows for the first £7500 from a lodger to be tax free. But yes presumably everyone who needs to know understands that tax is generally liable.

daisymoo2 · 23/10/2025 23:41

Most people do know this, in my opinion. However, some comments I’ve read on other posts on Mumsnet suggest that when moving for work you can rent out your own property, for example for £1k per month, and then use that same £1k to rent a property in another part of the country. I don’t think everyone in this situation realises tax is payable in the rent received at your marginal rate so this situation is definitely not cost neutral.

bumbaloo · 23/10/2025 23:44

sicknessmedi · 23/10/2025 22:44

I have spoken to many people and they don't know

You must know lots of stupid clueless people

echt · 23/10/2025 23:57

snoffle · 23/10/2025 23:14

Until the law changed in 2015, landlords could often not pay income tax on rental income, as you only had to pay tax on the profits. So, if the rent was similar to the mortgage, that mortgage payment would be an expense, therefore no income tax due. Maybe some people aren't aware of the change.

But it would still have to be declared, i.e. shown not to be in profit.

ReadingSoManyThreads · 24/10/2025 00:01

sicknessmedi · 23/10/2025 22:51

I've spoken to a guy with investment property and he didn't know.

So you've spoken to one person and you've translated that to "most people"?

I don't know anyone with additional properties who doesn't know this.

I've seen a few people post online, here on MN and on Facebook who are considering renting out a property, either by buying a BTL or from an inherited property, and people have informed them on the threads that they need to pay tax on the rent they receive, and they weren't aware of this. But this is BEFORE they've actually had an additional property.

If the guy you've spoken to has deliberately started buying investment property and he doesn't know his tax obligations, then he's an utter muppet.

80smonster · 24/10/2025 00:02

It’s smacked all over HMRC’s self assessment paperwork, which you fill in each year, so not sure how someone couldn’t know unless they can’t read.

Marchitectmummy · 24/10/2025 03:14

Would love to know who these people are! People who rent a room have a tax free threshold however anything else is taxable income.

I'm not sure I buy it that anyone who rents a property out doesn't know, ludicrous.

Meadowfinch · 24/10/2025 03:22

Anyone who has ever seen or filled out a tax return, knows. As does anyone who has taken legal advice related to a tenancy, so it would be difficult not to know.

Money from letting a room in your own home is tax free up to £7,500 p.a.

HappiestSleeping · 24/10/2025 03:42

TokenGinger · 23/10/2025 22:51

Do you mean that the average Joe doesn’t know often doesn’t know this? If so, I agree. I see so many comments on Facebook posts (where houses are advertised for rent) about how greedy landlords are etc., and many don’t understand the costs involved.

To be honest, before my DP moved in with me and we put his up for rental, I didn’t know you had to. By the time he pays 20% tax, the estate agent fee of 13%, his landlord’s insurance and boiler insurance, his mortgage is only just covered. Which is great that it is covered, it basically takes care of itself, but he’s certainly not rolling around in it like many think (though I fully appreciate he has an asset there which is increasing in value, not at his cost).

he has an asset there which is increasing in value,

And that increase gets taxed too.

HappiestSleeping · 24/10/2025 03:45

TheWonderhorse · 23/10/2025 23:02

Is that meant to be some sort of surprise? Of course it's taxable, it's income. Just like the insurances/expenses are tax deductible.

So the tax paid is on the income minus the expenses.

Only some of the expenses. Not all are tax deductible.

toiletpaperthief · 24/10/2025 03:52

They choose not to know 🤣

Starconundrum · 24/10/2025 03:53

snoffle · 23/10/2025 23:14

Until the law changed in 2015, landlords could often not pay income tax on rental income, as you only had to pay tax on the profits. So, if the rent was similar to the mortgage, that mortgage payment would be an expense, therefore no income tax due. Maybe some people aren't aware of the change.

Yup, I know 4 people that rent houses, 3 of them have never paid tax, or think they have to. The forth person has loads of houses so has always paid.

I just smile and nod.

I know quite a few white van men/decorators that pay far less tax than they should too though. They'd be far more aggressive if I suggested they should, so I pretend I don't understand if the subject comes up. I'm amazed at how many people not on paye think the tax threshold is over £100 grand.

APTPT · 24/10/2025 04:09

Qi am sure if the scummy slumlords who avoid every other obligation they can wriggle out of could avoid HMRC, they would!

pumpkinscake · 24/10/2025 04:37

I dont think there can be many, if any at all, landlords who don't know this.

FeeFiFoFummy · 24/10/2025 05:00

All income is taxed…

Lionfisher · 24/10/2025 06:00

snoffle · 23/10/2025 23:14

Until the law changed in 2015, landlords could often not pay income tax on rental income, as you only had to pay tax on the profits. So, if the rent was similar to the mortgage, that mortgage payment would be an expense, therefore no income tax due. Maybe some people aren't aware of the change.

You still had to fill out a tax return …

CypressGrove · 24/10/2025 06:01

Surely the majority of people know this even if not landlords. So yes YABU.

Slightyamusedandsilly · 24/10/2025 06:10

sicknessmedi · 23/10/2025 22:51

I've spoken to a guy with investment property and he didn't know.

He's going to get a hugely nasty shock when HMRC audit him.

Not knowing is never accepted as a justifiable reason for not paying your taxes. Hilarious that anyone who rents property for income wouldn't realise the VERY basic rule that earned income is taxable.

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