yes. loss in excess of basis is carried forward to future years. so should you have income or increase your investment that will give you additional basis for taking losses.
you may be doing something wrong on the 7203
did you check the box for the reg 1.1367 election to defer using nondeductible expenses against basis if so the nondeductible loss is not enterd on part III of the 7203. then line 46 should be blnk (that's where the nondeductible expenses would be entered if the election is not made.
you may have #10K of basis but if you don't make the elction some of your basis is applied to the nondedcutible expenses reducing the amount allowe as a deduction so allowed on the 6198 will differ from
allowed on the 7203 and 1040 which is okay becuase the 7203 shows the allocation along with carryover losses due to basis limitation (part III)
