Real Estate Investors & Developers Bookkeeping in Washington

Beyond sales tax, Washington levies the Business and Occupation (B&O) Tax on gross receipts, with no deduction for cost of goods, labour, or any other expense, payable by the business. the rate depends on the activity classification — retailing, wholesaling, service, manufacturing — and a business doing more than one reports under more than one. It is filed alongside sales tax on the same return. The consequence for your books is direct: because there is no deduction for costs, a business with thin margins pays B&O in years it loses money. Revenue has to be split by activity classification in the books, or the return is guesswork. It is registered and filed separately from anything the Washington Secretary of State handles, and it accrues on revenue rather than on profit — so it is recorded as it builds, not discovered at year end.

Washington levies a real estate transfer or deed tax at closing, on top of recording fees and title charges. Each of those gets a different treatment — some capitalize into basis, some are deductible now — and drawing that line inconsistently across years is the single most common problem we find in investor books. Getting it right at closing is far cheaper than reconstructing it later.

The Washington statewide base rate is 6.5%. That is among the highest state rates in the country before a single local rate is added, which makes a miscoded category expensive per transaction rather than merely untidy. Sourcing is where this is won or lost, and with economic nexus set at $100,000 in sales, it becomes your problem the moment that threshold is crossed.

Registering to do business in Washington runs through the Washington Secretary of State, with tax accounts through the Washington Department of Revenue and employer accounts through the Washington Employment Security Department. Washington treats these as wholly independent, so being in good standing with one says nothing about the others — and the sales tax account is the one that accrues a real balance while you are not looking.