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surprise the 7203 doesn't work to limit losses. it merely info for the IRS so it can see what's supposed to be and what you did.  Passive loss from an s-corp k-1 flows directly to the 8582 to determine allowed and suspended.  losses. that has nothing to do with the 7203 which is a tax basis computation. even if a loss is suspended for PAL purposes it reduces tax basis. if you have losses in excess of tax basis that creates a more complicated entry  requirement so that only the proper mount of loss is deducted through the 8582