S corporations can provide tax advantages over C corporations in the right circumstances. This is true if you expect that the business will incur losses in its early years because shareholders in a C corporation generally get no tax benefit from such losses. Conversely, as an S corporation shareholder, you can deduct your percentage share of these losses on your personal tax return to the extent of your basis in the stock and any loans you personally make to the entity. Losses that can’t be deducted because they exceed your basis are carried forward and can be deducted by you when there’s sufficient basis. Therefore, your ability to use losses that pass through from an S corporation depends on your basis in the corporation’s stock and debt....