Core allows you to set up budgets in general and then assign them to multiple projects or create budgets specific to a project structure (parent projects with child phases). You can also create standard budgets in general and then copy their details to new budgets as and when needed. To do so:

1. Create and save a 'template budget' in Core > Projects > Budgets that has all the budget details that your team uses most of the time. You can add line items for all the common activities and expenses involved.
2. Then create a new budget using the Create From Existing Budget option. Select the 'template budget' to copy from.
3. All the information from the 'template budget' is copied to the new budget. You can tweak your new budget details as needed and then save it.
4. Now assign this new budget to the relevant project.

After logging time and expenses against such projects, you can run the Budget Comparison reports to track their progress.

Check the Core Help for details.