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Inheritance Tax

What is the IHT400 Form, and When is it Required?

The IHT400 Inheritance Tax Account is the main HMRC form used to report the value of an estate and assess whether any Inheritance Tax is due.

What does the IHT400 cover?

  • Details of the deceased and the estate
  • The full value of all assets at the date of death
  • All deductible liabilities and funeral costs
  • Gifts made in the seven years before death
  • All applicable exemptions and reliefs
  • The calculation of any IHT liability

When is it required?

The IHT400 is only required where the estate is not an excepted estate. This is not only about whether Inheritance Tax is due: an estate can fall outside the conditions for an excepted estate even when no tax is payable. Most estates are excepted estates. For these, no Inheritance Tax forms are sent to HMRC at all: the estate’s values are entered directly on the Probate application instead. YouCanDoProbate works out from your answers whether the estate is excepted, and produces the IHT400 and its schedules only where they are needed.

What happens after it is submitted?

HMRC reviews the IHT400 and acknowledges the estate’s tax position. If IHT is due, it must be paid (at least in part) before Probate can be granted. HMRC then sends a unique Probate code, by letter, or by email if you chose to receive it that way, which is entered on the Probate application before it is sent to HMCTS.

YouCanDoProbate completes the full IHT400 and all required supplementary schedules automatically from your answers, with clear guidance on what to send to HMRC and the Probate Registry.

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Trustpilot five star rating
I would highly recommend this service

I would highly recommend this service, they go above and beyond to make sure you understand and can complete, they take away any hassle or concern, would give more than 5 stars if I could

Caroline Howe
Trustpilot five star rating
As it says

As it says; “You can do Probate” all be it with a little help from the team who are really great. I had my doubts initially but I have managed to complete all of the forms and get my application in for my Mothers estate, and I am in my 70S. It was interesting that funeral expenses are an expense rather than a liability but I suppose if we think about it, it is. Many thanks to the team. I can just wait and see how long it takes to get it from here.

Graham Trim
Trustpilot five star rating
A very professional company and…

A very professional company and service, so easy to use from start to finish, but always available to answer any questions quickly, no matter how trivial, saved so much money compared to traditional solicitor. Highly recommend.

Julian Scheimann
Trustpilot five star rating
What a brilliant service

What a brilliant service, a simple money saver. Thoroughly recommended to do Probate yourself. Very well supported by Probate experts on the end of the telephone. I phoned 4 times and nothing was to much trouble. Reasonably simple forms to download and fill in. You can at any point return to the start and edit anything. Even if you make a total hash of it you can start again as many times as you like. It collates all the information you enter into the forms and then when you print it out it is in a recognised format for the HMCTS people. If you are unsure just phone the help line and talk to an expert, if they bare busy they will call you back. I applied for Probate on 29th April, on 12 May I had conformation that Probate had been granted and I would receive my Grant Of Probate paperwork within 10 working days. You cant beat that, well worth the £499.

Website User
Trustpilot five star rating
Fantastic programme and support

Fantastic programme and support. I spoke to Adam a few times and he was extremely helpful. Applying for probate can be challenging despite having reasonable knowledge of the process. I did the probate for my late mother and once I had the codes from HMRC got the probate within 10 days. Best to do the probate process online rather than sending the paper forms. All you have to submit to the probate office is the original will. I would recommend this company highly as all the solicitors would do is to supply them with the relevant paperwork and charge a large sum for doing what I did in 2 hours.

Dr Mayur Shah
Trustpilot five star rating
Excellent – Highly Recommended

If you want your Probate to come through quickly and efficiently then I cannot recommend this company more highly. We had an appointment with a Solicitor for 5th March 2025 and at a cost of £1,503 and was told it would take 12 weeks or more. I searched the internet for an online Probate Company and came across YouCanDoProbate. Looked at the reviews and saw that someone had put that you don’t pay only the £399 fee – they said there were hidden costs. So read through everything and noted that you also have to send a cheque for £300 for the Courts to gain the Probate. I did phone them to make sure there were no other costs involved and was told that no this was everything charged – no “hidden” costs at all. So on 19th February I sent off all the paperwork together with the cheque for the Courts. Just over a week later I received an email from Gov.uk to say they were dealing with the probate and that it could take up to 12 weeks. A couple of days later I received an email to say Probate had been granted and I would receive it within 10 days – on 5th March the Probate arrived through the post. So it only took 2 weeks from beginning to end. I would recommend this website and if you have any questions they are more than helpful. I don’t know why Solicitors charge such outrageous fees – this was half what was quoted and we had the Probate in our hands before the actual appointment with the Solicitor. I cannot thank you enough for making what is a really difficult time in any families life a straightforward and easy application.

Jennifer Wyatt
Trustpilot five star rating
Very easy to follow.

Very easy to follow . Help available if required. Certainly a savings compared to solicitors fees.

S Evans
Trustpilot five star rating
This saved so much time and cost

This saved so much time and cost. They answered all my questions and I was able to submit all the forms myself. Great service. I would reccomend this to anyone rather than using a solicitor.

Ben Gale
Trustpilot five star rating
i had talked to a solicitor to do the…

i had talked to a solicitor to do the probate, he wanted 1 to 5 % of the value of the house approx £4,000 to £20,000 pounds then i found youcandoprobate.co.uk online, for £325 so instead of telling the high cost solicitor all the details he needed to know, i just wrote them same details on the online forms, and any questions i had were only a phone call away and each question was answered. as you go through the online forms every thing is worked out for you and you print the forms off at the end and send them off. this as an excellent service and have no hesitation in recommending them, they are brilliant

Vic
Trustpilot five star rating
Easy to use and great support – would recommend

I am a qualified accountant (although not a tax specialist, so no IHT experience), but even had that not been the case I’m sure I would have found the software easy and intuitive to follow. Helpline queries were answered very quickly and helpfully (within 24 hours). Absolutely didn’t need a solicitor. All 13 IHT forms were generated for me which I’d never have been able to do without help. I decided to apply for the probate certificate online to save time and just took the printout from the software and replicated it on the probate portal – again very easy.

customer
Trustpilot five star rating
My mother died in March this year and I…

My mother died in March this year and I now have an IHT421 AND Probate. Very happy with the process and occasional need to call for guidance. Callbacks were always prompt and informed. The idea of having a named case worker is as particularly helpful.

Mike B
Trustpilot five star rating
Made probate very easy

Made probate very easy

DAVID LAMSDALE
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Forms filled in for you
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£499

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Additional costs: The probate registry fee of £526 (for all estates over £5,000) and any additional official copies at £2 each. (Payable directly to HM Courts and Tribunals Service by cheque or postal order, enclosed with your application forms).
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© YouCanDoProbate • YouCanDoProbate is a trading name of Kabing Ltd.
YouCanDoProbate is an online platform providing legal forms and information. YouCanDoProbate is not a law firm and is not regulated by the Solicitors Regulation Authority (SRA). Our online probate and inheritance tax service is an online platform providing probate and inheritance tax forms and information to allow you to complete inheritance tax returns and apply for probate yourself. Our telephone, email and livechat support provides guidance only, we do not provide bespoke advice, including estate planning or tax advice and it is not a substitute for a lawyer’s advice about complex estate planning or tax issues.
© Kabing Ltd | All Rights Reserved. Company number 12125399.

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