This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One who budgets.

"I don't use the budgeter, which is simply a list of items and a blank space next to it (so you can fill in the cost and add up the charges), simply because I'd rather keep it in a spreadsheet."