The major political parties have seen a slump in the amount of money coming into their election-year war chests, with the 2014-15 financial year recording a drop of almost $100 million.

Key points: Liberal, Labor parties suffer losses, AEC data shows

Liberal, Labor parties suffer losses, AEC data shows Liberal donations halved from previous year

Liberal donations halved from previous year Clive Palmer's companies donated almost $10m to PUP

New data from the Australian Electoral Commission (AEC) shows both the Liberal Party and Labor suffered losses in their total receipts, a figure that includes donations and membership fees, amongst other income.

The Liberal Party recorded a total of $75.9 million in receipts, down from $125 million the previous financial year.

Donations also halved from the previous year, down from $20.2 million in 2013-14 to around $10.3 million in the past financial year.

The total came from more than 100 donors, including $600,000 from Brunswick Property Vic Pty Ltd and $200,000 from Chinese-owned property developer Ever Bright.

Paul Marks donated a total of $340,000 to the Liberal Party, including $15,000 to its Queensland branch.

The mining magnate hit the headlines last year after former prime minister Tony Abbott claimed a taxpayer-funded travel allowance on a day he attended Mr Marks' birthday celebrations in March.

Ros Packer, widow of the late media magnate Kerry, also donated $100,000.

She also donated a total of $580,000 in the lead up to the 2013 federal election.

Aspen Medical donated more than $21,000 to various branches of the Liberal Party. The Federal Coalition Government awarded the company a $20 million contract in 2014 to manage and run a 100-bed field hospital in Sierra Leone.

The Federal Opposition has called for a Senate inquiry into the operation, which treated around 200 patients at a cost of more than $84,600 each.

Labor received $7.3 million from 288 donations as part of its total receipts of $65.7 million, down from its 2013-14 total of $77.6 million.

The donations — which equated to a $4 million drop from the previous year's total — included $60,000 from Google Australia.

Google gave $60,000 apiece to the Chifley and Menzies Research Centres, associated with the Labor and Liberal parties respectively.

Labor listed the money as a political donation, a first for the technology giant in Australia..

Labor also received $27,500 from Woolworths Ltd, whose supermarkets featured prominently in the Opposition Leader's recent campaign drive against increases to the GST.

The Nationals and the Greens received around $593,233 and $526,484 in donations each.

Palmer companies donated $10m to party

Clive Palmer's companies donated almost $10 million to his political party over the past financial year, with more than half from the troubled Queensland Nickel refinery.

Top 5 donors for 2014-15 Queensland Nickel to the PUP: $5,991,381

Queensland Nickel to the PUP: $5,991,381 Mineralogy Pty Ltd to the PUP: $3,628,346

Mineralogy Pty Ltd to the PUP: $3,628,346 Sean Tomlinson to Labor: $253,300

Sean Tomlinson to Labor: $253,300 Estate of Douglas Maccleath Dolgner to the Citizens Electoral Council of Australia: $249,540

Estate of Douglas Maccleath Dolgner to the Citizens Electoral Council of Australia: $249,540 Pratt Holdings P/L to Liberal party: $210,000

The Palmer United Party (PUP) received a total of $9.77 million in donations - more than the total received by either Labor, the Nationals or the Greens.

Queensland Nickel donated $5.9 million in the 12 month period, while Mineralogy donated $3.6 million and the Palmer Coolum Resort donated $191,113.

Mr Palmer also donated $2,000 personally.

The ABC had earlier revealed that Queensland Nickel had donated $288,516 to PUP on December 31, just one fortnight before sacking staff at the Yabulu refinery.

Mr Palmer said the paperwork in question covered the period dating back to June.

PUP received almost $26 million from businesses owned by Mr Palmer in the 2013-14 financial year, with Queensland Nickel donating $15.2 million in that time.

Labor, Greens MPs donating to parties

A number of politicians also donated to their own parties, including former treasurer Wayne Swan.

The Labor MP donated a total of $4,617, including almost $2,000 to the party's Queensland branch, while Greens senator Lee Rhiannon donated almost $25,000 to her party.

NSW Greens MPs also donated to their own branch, including $19,012 from Mehreen Faruqi and $18,837 from David Shoebridge.

Oil and gas mining company Santos donated to both Coalition parties and Labor, totalling around $170,000.

Woodside Energy and Origin Energy also donated to all major parties, as did energy giant Chevron.

Hancock Prospecting Pty Ltd gave $22,000 to the Nationals, which also received $10,780 from cigarette company Philip Morris.

Cabcharge donated $2,000 to the Liberal Party's ACT branch, in the year which saw the capital's Labor Government legalise the ride-sharing service Uber.

It also donated to both major parties in Queensland, which is yet to legalise Uber, the cab companies' major competitor.