What is a Construction Supplement Bill?

A construction supplemental tax bill represents an increase in assessed value for new construction completed after the original January 1 assessment for each year. A supplemental assessment could be for new structures, home, deck, or additions and renovations to your existing house. It could also be for a house or structure that was under construction as of January 1, and has since been completed. The construction supplement bill is generally only for the improvements on a lot, and does not include any taxes that may be due for land associated with the structure.


The construction supplement is billed to the current owner of record at the time the billing is generated. Dependent on the timing of settlement and deed updates through the Clerk of the Circuit Courts, the bills may be initially generated to a builder or land owner, and not the legal owner. Subsequent updates may generate a change of ownership and all unpaid tax bills associated with a construction supplement and land are then generated to the new owner.


Construction supplemental bills are based on a prorated assessed value as determined by the Office of the Commissioner of the Revenue, 703-777-0260 or by email.

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1. When do you mail out bills?
2. I did not get my bill, what do I do?
3. How do I change or correct my address on my Real Estate bill?
4. What do I need to do to get my name corrected on the bill?
5. I just received my tax bill and it is significantly different than my neighbors in the exact same house. Why?
6. When will my taxes be due if I am appealing my assessment?
7. How can I pay my real estate taxes?
8. Can I make partial payments or installments on my real estate taxes?
9. How long does a payment take to post to your system?
10. If I can't pay my taxes what happens?
11. What is the grace period for paying my taxes in full?
12. I received multiple bills for the same parcel, but different amounts. What are they for?
13. What is a Construction Supplement Bill?
14. We just purchased a new home, and believe that all taxes were taken care of at settlement. Why are we getting this tax bill?
15. I received a real estate tax bill, but I escrow my taxes. Why am I getting it?
16. How can I find out if my mortgage company committed to paying my taxes?
17. The most recent tax bill was paid, but now I received a delinquent tax bill. Why?
18. I just refinanced with a new mortgage company, what should I do?
19. My mortgage company said they paid my taxes, and now you are telling me I can not get a building permit because the taxes are delinquent?