Three Parts of a Practical, Effective Budget

Many times I've recommended creating a personal budget to help you meet your financial needs. It doesn't sound too difficult, does it? Believe it or not, the hardest part is finding the discipline to stick with it and give it the care and feeding it needs to be effective. It's easy to add up your income and divide it across all of your expenses/savings goals. But budgeting is more than that. In this post, I'll tell you the three important items that you'll need to have an effective budget: a Budget "Thermometer," Running Total Tracker, and Cash Planner.

1. Budget Thermometer








Here is a sample of my budget thermometer for September. It is simply a screenshot from my favorite free personal finance software, mint.com.

Coming up with categories and their monthly allowances is an important first step and the part of your budget that you will pay the most attention to on a daily basis. Mint.com not only allows you to create your budget, but it will show you a daily thermometer to display how well you're adhering to your plans. Because it's integrated with your bank and credit cards, each day it will classify your spending transactions and tell you whether or not you're on track to meet your monthly goals. If you spend half of your grocery budget by the 5th of the month, Mint will alert you so you can rein in on your shopping until you're back on track. As you spend money in a category, your little "thermometer" will fill in. Its color will change if you're on pace (green) , not on pace (yellow), or over your monthly budget.

I can't tell you how to split up your income each month, but here are some tips:

- Before creating your categories and their associated monthly allowances ($500 on groceries, $200 on restaurants, etc), take a look at where you currently spend your money and don't just pull the numbers out of thin air. If you're using personal finance tool like Mint, Quicken, or Money, you should be able to see a pie chart that shows you how you've spent your money in the past. But make sure your past transactions are classified correctly!

- Next, establish new goals for each of your categories. It's OK (and encouraged!) to spend less each month in certain categories than you have in the past. If you spent $400 last month at restaurants and want to bring that down, this is the perfect time to set those goals. Make sure you're using reasonable and achievable estimates for everything, but don't be afraid of a challenge.

- Don't forget about your savings goals! If you're saving up for something specific like a vacation or an engagement ring, start implementing those goals into your budget as categories after you've figured out what you'll have left over. Whether it's $10 per month or $500 per month, it's important to put money away for the things you'll need in the future.

- Don't budget down to your last penny. We're dealing with your personal finances; you're not an accountant. I like to leave out 2.5% of my monthly net income (after-tax pay) unaccounted for. There's no doubt that at least one of my expense categories will go over one month (as you can see above), so it's nice to have a little buffer for such an occasion without throwing off my other goals.

- If there are expenses that aren't incurred monthly, like car insurance or, in my case, my dog's annual vet visit, split them up in terms of months. Divide your six-month premium by six and use that as your monthly budget. This, of course, means that you'll be under budget some months, and over budget the months that the expense is paid. This point illustrates the need for the other two pieces of an effective budget: a Running Total Tracker and a Cash Planner.

2. Running Total Tracker
Unless you're an incredibly disciplined, you're not going to spend exactly the same amount of money each month on all of your categories. Certain things like your car payment, mortgage, etc are fixed, but other expenditures like groceries, clothing, and utilities will vary a bit. This is why it's important to track running totals.

Mint does not have running total tracking functionality, so I do it myself once a month in a spreadsheet. Two of my columns are identical to my categorical budget columns that are tracked by my personal finance software. One column has the identical category and the next has the monthly budget. Each month, I evaluate my monthly adherence to my budget and note the amount that I was over or under for each category in a new column; I have columns for each month that I have been using the spreadsheet. If my restaurant budget is $140 and I only spend $90 in September, my September column would have a green "$50" because I spent $50 less than budgeted. If I had spent $150, my September column would have a red "$10" because I spent $10 more than budgeted.

Next to the first two columns that display spending categories and their monthly allowances, I have a third column with a number that is either red or green. This number represents the sum of all of the monthly over/under amounts, which I call the "running total."


The running total is important for me to know how well I'm adhering to my budget over time. Also, it keeps track of the balances of certain non-monthly expenses and can help when you create next year's budget. If you see that you're constantly spending more than your budget on gas or groceries, you might need to rethink your amount.

Additionally, the running total column can indicate whether or not my wife or I can afford greater than normal spending in a certain category. Recently she said she wanted to go clothes shopping. We hadn't spent any money on clothes in a few months, so when I checked our running total for clothing, I saw that we were about $123 in the green. Because we hadn't spent our $50 clothing budget in a few months, she was able to go and spend more money on clothes this month. When I update my spreadsheet next month, the running total will be back to zero.

3. Cash Planner
Our incomes and expenses aren't always regular and incremental. There are times of the year when we receive bonuses or incur extra costs. The third piece of budgeting is important to help you determine how much cash you'll have after receiving irregular income (possibly after getting your tax refund) and after paying your abnormal expenses (like the January post-holiday credit card bill).

This budgeting tool is also something that I track manually in Excel. Across the top are columns indicating two periods per month -- one ending on the 15th and the other on last day of the month. It's up to you to determine how small your time increments will be. Depending on how often you're paid, you can have columns represent every Friday from this day forward, or simply the end of the month.

For each column, I have a series of rows for my expenses and incomes. My income is a row and my wife's is another. My expense rows resemble my budget categories, but unlike my running total spreadsheet, they don't follow them explicitly. This is because not all of my expenses are paid on the same day of the month. Many of them, like groceries and my XM bill, are put on my credit card. Since my credit card bill is due only once per month, I have a single row for "credit card" that includes many of my regular expenses. Other expense rows include one for my mortgage, my car loan, and my student loan payment.

Two other important rows include "Additional Income" and "Additional Expenses." These will be places where you can input anticipated fluctuations in your income or expenses. If you know you're planning on spending $350 next month on your quarterly student loan interest, you can plan for that. If you're getting a big tax refund in the spring, put that in your April column. Add as many columns as you're comfortable with. If you want to plan out six months ahead, you may. If you only want to plan two months ahead, that's fine, too.

Next, for each period column, I enter the expected amounts for each row (if any) that will be applied during the period. For example, my mortgage and car payment are paid on the 10th of each month. For the column labeled 10/15 (representing the period from October 1st - 15th), I will enter the amount of my monthly mortgage and car payments as well as any income I expect to receive. Since my credit card and student loan payments aren't due until later in the month, those expenses will show up in the second column for the month, 10/31. Similarly, because my wife is paid only at the end of each month, I'll enter her income only for the second period.

At the bottom of each column, I do a little math to estimate my cash balance. I take the cash balance from the bottom of the previous column, add the incomes from the current column, and then subtract the expenses from the current column. This will result in my new expected cash balance for the period. For example if I had $5,000 at the end of the last period, received $1,000 of total income, and incurred $800 of total expenses, my new cash balance would be $5,200.

While the Budget Thermometer and the Running Total tracker are useful for tactical budgeting, the Cash Planner is great for strategic cash management. If you're trying to develop an emergency fund of a few months' salary, the cash planner will give you a good idea of how long it will take to reach your goal.

As you can see, there's more to budgeting than just coming up with monthly allowances for spending categories. To budget effectively, you must have reasonable monthly goals (derived from your past spending), the ability to monitor your adherence to those goals, a willingness to log your monthly adherence (running totals), and a view into the future to know what your financial situation will be and how soon you can achieve your goals.

What are your own personal budgeting strategies?