I can't import to my budget.

If you are trying to import to  a budget that contains formulas or employee information, you may see the year greyed out as below:

This restriction is in place to prevent actual data being imported into a budget accidentally and overwriting the budget data.

If you do need to import data to that year in the budget, you can go to Manage Budgets and create a new blank budget into which you can import data, then copy your imported data from that blank budget to the correct one.

For more on Copying, click here.