The level of compensation is set at €100,000 per person per account across the European Union.
Since 2010, that has meant a limit of £85,000 in the UK.
But that amount is recalculated every five years.
Due to a weak euro in the summer of 2015, the new level has been set at £75,000 from Jan 1 2016.
The limit offers compensation to anyone who has money in a UK authorised bank, building society, credit union or friendly society that goes bust.
On the assumption that the insolvency stopped you getting your money out in the normal manner, you would be invited to apply to the FSCS for compensation.
Any savings institutions should be formally authorised by the Prudential Regulation Authority to hold your money. If it is not, it is operating fraudulently.
The plan now is that most savers will receive their compensation within seven days, and the remainder of them within 20 days.
As before, holders of joint accounts are both eligible for compensation in their own right. So, a payment of up to £170,000 (£150,000 from Jan 2016) may be made in relation to a joint account.
Your debt to the bank will still exist and you will still have to repay it - the loan will not evaporate just because your lender has gone bust.
Any money owed to you by the bank, e.g. in a savings account, will be paid in its totality - up to the new limit.
Previously it would have been offset by any sum you owed to the savings institution.
Firstly, there is only one chunk of compensation per saver, per authorised institution.
So if you have two or more accounts with one bank your compensation limit will not be greater than for someone with just one account.
This is a more complicated issue, though, if you have money in two or more banks with different names.
If they are all part of a wider banking group, or one of its divisions, which has just one overall PRA authorisation, then you will still be eligible for only one chunk of compensation.
If, however, the banks holding your money have separate authorisations, despite being part of a larger group, then you will still be able to claim compensation per bank, regardless of the fact that they may all be owned by one giant institution.
You can check whether an institution is authorised at a group level or as a separate entity by checking the authorised firms register on the PRA's website.
This specifies the biggest authorised deposit takers and the different names and bank brands that they cover.
For example, if you have £85,000 saved with Barclays and £85,000 with HSBC Bank, all of this would be protected.
However, if you have money in accounts with two different brands within the same authorised institution, then only £85,000 is covered.
An example would be having two accounts, one with Barclays and one with Standard Life Bank, as Standard Life Bank has been part of Barclays since the start of 2010 and is covered by Barclays' authorisation.
On the other hand, Lloyds and Bank of Scotland have separate authorisations, despite both being part of the wider Lloyds Banking Group.
The FSCS deposit protection scheme covers small businesses. To qualify they have to meet at least two of the following conditions. They must:
Larger businesses are excluded from the scheme, except in relation to claims made under a compulsory insurance policy.
This might be where a company makes a claim but the insurer fails to pay out, or if premiums have been handed over but not in fact used to buy a valid policy.
Bank and building society accounts in the UK come with a guarantee: if the institution holding your money goes bust, you will be compensated.