Special tax situations

When filing your taxes, you may be required to fill out certain forms or worksheets. These requirements vary depending on your business activities and gross revenue amount.

Amend a tax return
Change and correct previously filed returns.

Multiple activities tax credit (MATC)
Ensure you are not taxed twice if you file under multiple tax classifications.

Service Income Apportionment
Divide your tax payments if you do business in two or more Washington cities.

Square footage tax
Some Seattle businesses pay this tax when they receive tax breaks for business conducted elsewhere in the state.

Voluntary Disclosure Program
Encourages unregistered businesses to comply with the City of Seattle's tax laws and to voluntarily register and pay prior obligations.

Revenue that you can legally subtract from your gross revenue amount.

Business activities not subject to Seattle taxes.