True, but that is more about preventing the need to pay IHT a second time if the beneficiary dies shortly afterwards.
An example; a widowed grandmother dies at the age of 90 and leaves a really large estate worth £1.5 million to her only daughter who is divorced and is aged 65.
Assuming grandmother could make use of her late husband's allowances then there would be £200k inheritance tax (IHT) to pay and the daughter would receive £1.3 million.
Suppose the daughter already owns a house and she is worth £500k before the inheritance. With the inheritance, she now has assets worth £1.8 million in total.
Unfortunately, the daughter becomes ill and dies seven years later at the age of 72. The daughter leaves her estate to her own children.
Having already paid out £200k on IHT, seven years earlier, there is now IHT to be paid out again which, this time, will be £520k.
.
If grandmother's estate had passed directly to the grandchildren then there would still be the initial £200k in IHT to pay but there would not be a further bill when the daughter died as her estate at death would only be £500k.
.
There would also be less IHT to pay if grandmother left a lot less. Suppose grandmother left an estate worth £500k to the daughter. This time there is no IHT to pay on grandmother's estate.
When the daughter passes away, her estate before the inheritance was worth £500k and, assuming she leaves her home to her children, there would be no IHT to pay. However, with the £500k inheritance that means that her estate now has to pay IHT.
.
Of course, the daughter may well "spend, spend, spend" and have a great time blowing the lot before she dies. In which case, no need to worry about IHT.
The daughter might also think about giving her own children some of the money but, apart from some specific circumstances, if a person dies within seven years of giving a gift then that gift is counted as still belonging to the estate for IHT purposes when IHT is calculated.