Corporations must file tax returns in all U.S. jurisdictions imposing an income tax. Such returns are a self-assessment of tax. Corporate income tax is payable in advance installments, or estimated payments, at the federal level and for many states.
An ashen skin color is a result of inadequate oxygen circulation or perfusion.
There are many types of hyper-pigmentation, but the following 3 are the most probable causes for dark spots, brown spots and age spots to appear on the skin. 1  Sun Exposure: Darker pigment spots such as age spots are caused by sun exposure and harmful UV rays that produce excess melanin. When UV rays are deposited in the skin where it then triggers the melanin in your skin to over produce and leave dark spots and age spots on the skin.