Update query not updating the full field - sql

Question

I have two tables, Actual Use and Budget. I need to update my [Actual Use].Goals with my monthly Budget.goals. I have an update query:
UPDATE [Actual Use]
INNER JOIN Budget ON [Actual Use].Property_ID = Budget.Property_ID
SET
[Actual Use].Goal = [Budget].Goal
WHERE
[Actual Use].Date = [Budget].Date
This query updates my Actual Use table but only for one month. 1/1/2016. Both Actual Use and Budget have a date field and all dates are entered with the first of each month so 1/1/2016, 2/1/2016 etc... Why is my update only working on one month and not every month where the Property_ID and month are the same on both tables?
Edit
The Acutal Use Table has the following fields in this order
Property_Id, Date, Use, Goal and the Budget Table has Property_ID, Date, Goal

Answer 1

I agree with the comment by Olivier. You need to join on both ID and Date.
Depending on what your table keys are, the above listed query could produce a One to Many or Many to Many result, in which, the program doesn't know which goal to assign. I suppose the Where clause may catch the many to many circumstance, but in my opinion, could produce some weird behavior.
Possible solution:
UPDATE [Actual Use]
INNER JOIN Budget ON [Actual Use].Property_ID = Budget.Property_ID
AND [Actual Use].Date = Budget.Date
SET
[Actual Use].Goal = [Budget].Goal
On a side note, it seems like the data is a bit repetitious? Presuming there was no 'goal' in table [Actual Use], you could still reference the data by the following:
SELECT * FROM [Actual Use] au
JOIN Budget b on au.Property_ID = b.Property_ID AND
au.Date = b.Date