A budget only works if you check it against reality. Variance is how you do that.
Direct answer
Budget variance is the difference between your planned figure and the actual figure for a category. Calculate it as actual minus budget. For spending, a positive number means you spent more than planned, and a negative number means you spent less. Review it monthly and adjust your plan.
The formula
Variance = Actual − Budget
If you budgeted 400 for groceries and spent 460, the variance is +60, so you overspent by 60. As a percentage: 60 ÷ 400 = 15 percent.
How to read it
- Small, random variances are normal. Do not chase them.
- Repeated variances in one category mean the budget is unrealistic. Change the number.
- One-off large variances usually have a cause, such as a car repair. Add a sinking fund so it does not recur.
A quick monthly review
- List each category with budget and actual.
- Calculate the variance for each.
- Highlight the largest three.
- Ask why, then either change behaviour or change the budget.
Where Teyro fits
Teyro's Budgeting for Beginners course turns this into short lessons you can play in a few minutes a day. It has 50 lessons, and you can start free.
The bottom line
Variance is a conversation between your plan and your life. Listen to it and update the plan.
This is general education, not personal financial advice.


