The total spend on the 2017 general election is likely to be millions of pounds lower than in 2015 as local authorities and political parties reel from Theresa May's shock announcement.
The short-term nature of the election has significantly reduced the amount of time and money that can be spent on campaigning, and is expected to lead to a decrease in party spending of nearly £15m.
Election spend can be broadly broken down into three categories: administrative costs, opportunity costs as the election period detracts from day-to-day life, and campaigning costs spent by political candidates.
What will be different this year?
The administrative and opportunity costs in 2017 are expected to be largely similar to previous years - although local authorities will be placed under additional strain due to their lack of preparation for this election - but the campaigning costs will be severely reduced.
Election campaigns are broken down into the "long campaign", when the first limits on spending are introduced, and the "short campaign", when there are even tighter restrictions.
In 2015, the 'long' campaign ran from December 19 2014 until Parliament's dissolution on March 30. This year, there will be no long campaign.
"In aggregate terms, the amount that the candidates can spend will overall be quite a lot lower than it was for the 2015 election," said Professor Justin Fisher, the head of the politics department at Brunel University.
In 2015, candidates spent £27.5m campaigning for office. Of this figure, £13.2m (47.7pc) was spent during the 'long' campaign before Parliament had been dissolved.
"At national level, there will also be a reduction," says Professor Fisher. "In a normal cycle, the most important spend does not happen in the last five weeks, it happens in the six months before. That is the spend on infrastructure, which largely goes to key voters in key seats.
"Unless the Conservatives have been extraordinarily good at keeping a secret in the last six months, that money will not have been spent to the same degree."
Holding a snap election also throws the traditional party fundraising process out of sync. Parties would have been going into a "dip" after the 2015 election, says Professor Fisher, as funds slowed down with no election on the immediate horizon.
How much was spent in 2015?
The Electoral Commission records and regulates campaign spending by both political parties and individual candidates, with limits as to how much each can spend and when.
This is meant to grant candidates a level playing field when it comes to communicating their pitch to be an MP.
The Conservatives were recently found to have fallen foul of these rules in the 2015 election by recording some expenditure as national party spending when it should have been filed under local candidate spending.
In 2015 the Conservatives were the biggest spending party on a national level, with a sum of £15.6m - around £3m more than Labour.
However, this was actually smaller than in 2010, when the Conservatives spent £16.8m.
In total, £39m was spent by a total of 57 parties and 23 non-party campaigners in the run-up to the 2015 election.
How much does it cost to hold an election?
Elections come with plenty of of associated costs. The administrative network needed to staff thousands of polling stations and process millions of votes is vast.
In general elections or referenda, when the network needs to cover the whole country, the bill can stretch into nine figures. The 2010 General Election is thought to have cost the taxpayer £113m, while £142m was spent holding the EU referendum last June.
While sums like this are vast, nationwide elections tend to be better value for money compared to more localised affairs.
The £142m spent in 2010 equates to £3.78 per voter compared to the £8.54 per voter that was spent to administer the 2011 Welsh Assembly elections. Overall, £8.1m was spent administering these assembly elections, according to research from The Democratic Audit.
Moving out costs
Another cost associated with general elections is that associated with moving the losing MPs out of their constituency or Westminster offices and moving new MPs in.
Departing MPs are allowed two months of expenses to set their affairs in order and this covers everything from continuing to pay staff to paying for removal vans.
After the 2015 General Election MPs were paid just shy of £9m in 'winding-up' expenses according to IPSA, of which the vast majority went on staffing costs.
Included in this figure is the £32,596 that was spent shredding sensitive documents, £67,283 repairing dilapidated offices, and £72,783 worth of stationary and postage.
In addition to those moving out, inbound MPs were given £771,908 to set up their offices after the 2015 election.
Overall, combining the previous costs of running elections and the likely spend in this year's campaigns, the 2017 General Election is estimated to cost around £170m.