A one-stop source about accessory dwelling units, multigenerational homes, laneway houses, ADUs, granny flats, in-law units…
This tool is designed to help Multnomah County citizens to understand the impacts of the tax policy change of the new re-MAV formula on their ADU plans. It spits out the property tax calculations under the common, standard formula and the new re-MAV formula.
To find out the values that you need to use this calculator, find your new property tax bill by visiting http://www.multcoproptax.org and clicking on “guest”. Type in your address eg. “100 N. Example”. Leave off “st” or “ave” from the address. Once in, click the “Tax Summary” tab, then click the hyperlink “click to view tax bill”. That’s where the new tax records can be viewed.
Or, you can download this Tax impacts of re-MAV formula_11_1_15.