The Alberta NDP ended 2015 with a debt of $600,957, annual financial statements filed with Elections Alberta reveal.

The deadline for filing annual financial statements was Thursday.

The Progressive Conservative party, which plunged into financial difficulties after losing the May 2015 election to the NDP, recorded a year-end debt of $1,019,105.

Although the official opposition Wildrose Party spent more than it raised in 2015, the party had $610,858 left over from the campaign period and $122,771 from the previous year, to end the year $221,506 in the black.

The Alberta Liberals and Alberta Party also ended the year on the positive side of the balance sheet, with net assets respectively of $82,302 and $10,629.

The parties had to file their annual financial statements by the end of the day Thursday.

The NDP raised $1,529,590 in 2015 and spent $2,026,719, leaving it with a deficit of $497,129.

The Wildrose raised $1,326,706 and spent $1,838,830, meaning the party ended 2015 with a $512,123.47.

The PCs spent $549,471 more than they raised in 2015.

This is the last year parties were able to accept donations from corporations and unions. New fundraising rules that came into effect in June 2015 mean only individual Alberta residents can donate to Alberta political parties.

The Alberta PCs long relied on corporate donations to fund its political campaigns.