(Adds CSU backing cuts in benefits for migrants)
BERLIN, Jan 1 (Reuters) - Germany's Bavarian conservatives are pressing for corporate tax cuts and cuts to welfare payments for asylum seekers, which could complicate talks with the Social Democrats (SPD) on forming a new government.
Chancellor Angela Merkel hopes to secure a fourth term in office by persuading the centre-left SPD to extend the "grand coalition" that ruled Germany for the past four years, even though both blocs suffered big losses in September's election.
Exploratory talks are scheduled from Jan. 7 to Jan 12.
The SPD, which initially wanted to stay in opposition, has agreed to explore the possibility in the interest of political stability after Merkel's coalition talks with two smaller parties collapsed in November. But SPD officials have made no promises.
Policy papers prepared by Bavaria's CSU, sister party to Merkel's Christian Democrats, point to difficult negotiations ahead at a time when Merkel and others are calling for quick work to form a stable new government.
The CSU, historically more conservative than Merkel's larger party, will play a key role in the coalition talks. The two conservative parties have presented a more unified front in recent months after prolonged conflict over Merkel's decision in 2015 to welcome more than one million migrants to Germany.
In a paper leaked last week, the CSU said it wanted military spending to reach NATO's target of 2 percent of national output, called for a hardline position on immigration, and rejected closer European integration, charting a collision course with the SPD.
Now, draft policy papers prepared for a CSU party meeting this week set up further conflicts.
In one paper, first reported by German magazine Focus, the CSU calls for cuts in corporate tax rates, given U.S. tax cuts and similar moves afoot in Britain and France.
"If Germany does not act, it will in the near future have one of the highest corporate tax rates in international comparison," the paper said.
SPD parliamentary group leader Andrea Nahles has called for increasing taxes on the wealthy. Her party is pressing for more spending on infrastructure, education, health care and other social priorities.
Another CSU paper called for cuts in benefits for asylum seekers to discourage more migrants from coming to Germany, the Augsburger Allgemeine newspaper reported late on Monday.
Instead of transitioning to higher regular welfare payments after 15 months, asylum-seekers would continue to receive the lower basic aid for 36 months.
"We want to reduce social welfare payments for asylum seekers so that Germany does not remain the main magnet for refugees from the whole world," Alexander Dobrindt, a top CSU official told the newspaper.
Pressure is mounting on Merkel to form a new government three months after the election.
Former finance minister Wolfgang Schaeuble, now president of the lower house of parliament, said on Saturday he could not rule out a minority government if no deal emerged.
Another alternative would be a new election, but political experts say that could result in further gains for the far-right Alternative for Germany (AfD), which parlayed concerns about migration to enter parliament for the first time in September. (Reporting by Markus Wacket; Writing by Andrea Shalal; Editing by Alison Williams and Peter Graff)
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