Simple Cash Planning Tips to Avoid Tax Season Surprises

Here’s an important but often overlooked tip to help you feel more on top of your business finances and reduce tax season stress:

Remember to set aside cash for your taxes.

Many business owners wait until their tax preparer provides a final number before making a tax payment. This often happens only once per year, so it’s easy to forget about the upcoming cash outflow. Whether we underestimate our upcoming tax bill or simply wait too long to prepare, our cash flow can suffer. 

(Even more so if interest and penalties come into play.)

The solution is to anticipate what your year-end tax bill might be and create a simple system to set cash aside consistently. 

Understanding what you’ll owe

A simple rule of thumb to keep in mind: the more you earn, the more tax you’ll owe.

Income tax rules are complex and require an in-depth understanding of your business’s financial results to estimate income taxes accurately, so this is one topic best discussed with your tax preparer. However, even a loose approximation can help you reserve cash and avoid surprises at year-end.

One place to start is last year’s tax return. If you’re not expecting a huge change in your net income this year, you might aim to set aside a similar amount to what you paid last year. Another option is to project this year’s net income and apply an estimated tax rate to arrive at a rough figure.

Many small businesses make quarterly tax payments, which are often (but not always) based on the prior year’s taxable income. In that case, you’re probably already in the routine of making quarterly payments, but it’s still important to compare this year’s net income to last year’s. If it’s significantly higher, you may owe additional taxes. 

Determining your tax rate

This is another great question for your tax preparer, as tax rates vary depending on your business structure.

That being said, when it comes to simple cash flow planning, the goal is approximation rather than precision — just enough to avoid scrambling when your final tax bill arrives. One very rough approach is to use last year’s effective tax rate. 

For more comfort, consider rounding that rate up. As your net income starts to exceed that of the previous year, you can adjust your rough tax rate accordingly.

Have a safe place to keep your tax savings

The cleanest way to ensure that you have enough cash available to cover your taxes — whether you’re saving for your year-end tax bill or quarterly installments — is to use a separate bank account just for tax savings. 

This allows you to see at a glance how much you’ve set aside, and helps prevent those funds from being unintentionally used for daily operations. 

Automate your tax savings

Once you’ve estimated the total amount of tax you’re expecting to pay, you can set up automatic monthly transfers to your tax savings account. This reduces time and effort on your end, and helps ensure that your savings stay on track throughout the year. 

Even without a formal tax estimate, setting aside a small amount each month can go a long way toward avoiding cash flow disruptions at tax time. 

Some business owners prefer to minimize the number of bank accounts they use, so another option is to track your tax savings in your accounting software or on a spreadsheet. The key is to regularly check your total cash balance against the balance that is reserved for future tax payments.

Keep your bookkeeping up-to-date

Accurate, up-to-date books can make a huge difference in cash flow management, including planning for future income taxes. 

With your books frequently updated, your financial data is more reliable, which supports more accurate tax estimates — whether you’re creating a rough estimate yourself or providing your interim financial information to your tax preparer for a professional tax estimate.

Maintaining updated books also helps you monitor available cash, accurately track cash set aside for taxes, and understand your overall financial performance, which impacts the amount of tax you ultimately owe.

A simple system to avoid tax season surprises

Although a tax professional is your best resource for accurate tax estimates, even a simple approximation and a consistent saving plan can significantly reduce tax season stress. Remember to keep your systems simple and your savings consistent to alleviate future setbacks. 

And if you’re already behind, you’re not alone! This is a great time to look for opportunities to begin setting aside cash to catch up. You don’t need to tackle the entire tax bill at once; set out to make progress a bit at a time. If you haven’t already, you could also explore tax payment plans with the IRS. 

Finally, if you’d like extra help staying on top of your books, don’t hesitate to reach out. We’re always happy to support business owners with a warm, grounded approach and a full suite of bookkeeping services, tailored to your business. 

For related reading, you may also enjoy: 

• What’s the Difference Between a Bookkeeper and an Accountant (and Which Do I Need?)

• Your Guide to Stress-Free Bookkeeping: Streamlining Your Systems and Avoiding Overwhelm

• How to Stay Organized for Monthly Bookkeeping: Simple Processes for Small Business Owners