Here is a link to a great video which covers most FAQs people have on property taxes, the way values are assessed, and how bills are sent and paid.
Jesse C. Sutton, REALTOR
STAGES Premier, REALTORS
Residential property in DC is taxed at .85c for every $100 in value, so I recommend taking the sales price of your potential home and doing that math, then apply the Homestead Deduction for an owner occupied home .. and you'll have a pretty good estimate of what your taxes will be.
Leslie White, Redfin Agent, DC Team
If you will be occupying the property you're buying, you will deduct $69,100 from the total assessment. That is the credit you receive for being an owner-occupant (as opposed to an investor), then multiply the balance by .85 (cents) per hundred of assessed value to calculate the annual tax bill.
This same site will give you the current real estate taxes. If the current owner has owned and occupied the property for a time, he/she would be receiving another tax break. The taxes collected by the city can not be increased more than 10% per year, so in the records you will see a second valuation, which will be lower. An investor does not receive this 10% maximum increase benefit. When a property changes hands however, the new owner's tax bill will go up to the full assessed value and thereafter be capped by the 10%.
I find it SOP for the government not to assess the property for the full purchase price in the first year. But if you purchase for less than the tax valuation, you have the right to appeal the assessed value based on price paid.
Hope this helps.
Linda Hughes, CRS