In the UK, the inheritance tax allowance, known as the nil-rate band (NRB), is currently set at £325,000. This means that if the value of your estate is below £325,000, no inheritance tax is payable. For estates exceeding this amount, the inheritance tax rate is 40% on the value above the threshold.
Additionally, there is an extra allowance called the residence nil-rate band (RNRB), which applies if you leave your home to your direct descendants (children or grandchildren). The RNRB is set at £175,000, effectively increasing the tax-free threshold to £500,000 when combined with the NRB. For married couples or civil partners, any unused allowance can be transferred to the surviving partner, potentially allowing a combined threshold of up to £1 million.
It's also worth noting that certain reliefs and exemptions can further reduce the inheritance tax burden. For example, assets passed to a spouse or civil partner are entirely exempt from inheritance tax. Additionally, leaving 10% or more of the estate to charity can reduce the tax rate on the remaining estate from 40% to 36%.
For more detailed guidance and specific scenarios, you may want to consult a tax advisor or visit the GOV.UK inheritance tax page.