你现在收入30万,rep loss 15万,按15万交税。 节约大约15万x24% this year.
如果delayed loss 到以后,你卖了房, 增值40万,收入30万。total 70万, 再用这15万loss, , your capital gain rate (last 15万) reduced from 20% to 15% and your income rate still in 30-15=15万, still save 15*.24%, so the difference of reporting loss this year compared 以后卖房再report, delay it could save you 15万*5%