Get help using My DOR for estate tax. Online filing options.To file online, you must have a SecureAccess Washington (SAW) user ID. Paper filing options. Please note that we can only estimate your property tax based on median property taxes in your area. Provides the detail for the tax rate used in calculating that portion of your property tax bill based on the assessed value of your property. The declaration permits the IRS to postpone certain tax-filing and tax-payment deadlines for taxpayers who reside or have a business in the disaster area. Calculate how much you can expect to pay in property taxes on your home in Alameda County, California. Compare your rate to the state and national average.