If you sell before or after you marry and the sales take place in the year of your wedding, on a joint return you can each use the $250,000 home exclusion. However, if either excludes less than $250,000, the unused exclusion amount cannot be used by the other spouse.
Depreciation methods that allow faster write-offs than straight-line rates in the earlier periods of the useful life of an asset. For example, in the first few years of recovery, MACRS allows a 200% double declining balance write-off, twice the straight-line rate.