Dear BSB Clients,

Please be aware of the following dates to ensure a smooth preparation of your tax returns. BSB staff are committed to keeping you updated and will inform you of any changes.

E-File Authorization Forms should be signed and returned to us as soon as possible after you receive them.  Upon receipt of your signed forms, we will release (file) your return within 24 hours.

March 11, 2019

Date we need your completed organizer to file your individual (1040) return by April 15th.  Note:  If all you are missing is one or two items (such as  your mortgage statement or K-1s) please still send the remaining information to us by this deadline.

April 1, 2019

Date we need basic information to prepare your individual (1040) extension.  The earlier you provide the information, the better!

April 15, 2019 – 12 Noon

Final date and time BSB will be filing extensions for 1040s.

Business Return Due Dates: 

March 15

Due date for Partnership (1065) and S-corp (1120s) returns/extensions.

April 15

Due date for corporations (1120) returns/extensions.


Please contact us at or 703-591-5200 if you have any questions.