Cash in the bank is the closest thing a small business has to a safety net.
Not a line of credit, not receivables on the way in, not inventory sitting on a shelf. It’s actual cash you can use when payroll is due, a vendor needs payment, or a slow month stretches longer than expected.
Most Utah small business owners know they should have some cash set aside, but the number is fuzzy.
Is three months enough? Do you count gross revenue or expenses? What happens if you’re a seasonal business?
Those are the right questions on how much cash should your business keep in the bank, and this post walks through each one.
Most Financial Experts Recommend Keeping Three To Six Months Of Operating Expenses In Reserve
The three-to-six-month rule is the most widely cited benchmark for small business cash reserves, and it comes from a straightforward concept: if revenue stopped tomorrow, how long could you keep running?
Three months is the floor for businesses with predictable, recurring income. Six months is a more comfortable target for businesses with variable revenue, high fixed costs, or thin margins.
The U.S. Small Business Administration (SBA) consistently points to operating expense coverage as the core measure of financial health for small businesses. The goal isn’t to park money forever. It’s to give yourself enough runway to respond to a slow quarter, an unexpected repair, or a client who pays late without having to scramble.
For a business spending $20,000 per month on rent, payroll, software, and supplies, a three-month reserve means $60,000 in cash. A six-month reserve means $120,000. Neither number is arbitrary, they reflect how long it realistically takes to adjust spending, find new revenue, or work through a disruption.
How Do You Calculate The Right Cash Reserve For Your Business?
Start by adding up everything your business spends in a typical month just to keep the doors open, then multiply by three to six. That monthly operating expense number should include rent or mortgage, payroll and payroll taxes, utilities, software subscriptions, insurance premiums, debt payments, and any recurring vendor contracts.
What you leave out: owner draws or distributions above a baseline salary, non-recurring purchases like equipment, and anything you could pause in a true emergency.
The goal is to calculate the number that represents the bare minimum cost of staying operational, then build your reserve around that figure.
A simple way to check your work: pull your last three months of bank statements and total up outflows. Divide by three to get a monthly average, then multiply by the number of months you want covered.
That’s your target reserve. If the number feels out of reach right now, the right move is to set a milestone: three months first, then build toward six over 12 to 18 months as cash flow allows.
Seasonal Businesses In Utah Need A Bigger Buffer Than The Standard Rule Suggests
Utah’s economy has meaningful seasonal swings, and businesses that feel it most are the ones that need the most cash on hand.
A landscaping company in Salt Lake County, a ski-adjacent retailer in Park City, a construction crew that slows in January… each of these businesses has a predictable dead season where revenue drops and fixed costs stay exactly where they are.
For seasonal businesses, the three-to-six-month rule needs a modifier: your reserve should be large enough to cover your slow season in full, plus two to three additional months for unexpected problems.
If your slow season runs four months and costs $15,000 per month to maintain, your baseline reserve target is $60,000 to $90,000 before you factor in anything unpredictable.
One practical approach: during your peak months, set aside a fixed percentage of revenue (somewhere between 10% and 20%) directly into a separate savings account before you pay anything else. Treating the reserve contribution like a non-negotiable expense makes it far easier to actually build over time.
What Counts As Operating Expenses When You’re Building A Cash Reserve?
Operating expenses for cash reserve purposes are the costs your business cannot avoid in any given month. Payroll is at the top of the list: both employee wages and the employer-side payroll taxes (Social Security at 6.2% and Medicare at 1.45% as of 2025, per the IRS). After payroll, the list typically includes rent or lease payments, utilities, business insurance, debt service on any outstanding loans, and essential software or subscriptions your operations depend on.
What you generally exclude from the reserve calculation: inventory purchases you could defer, marketing spend you could pause, contractor projects that are discretionary, and capital expenditures. The distinction matters because overstating your operating expenses inflates your reserve target and ties up capital that could be working elsewhere.
If you’re not sure which expenses to include, the easiest filter is to ask: if revenue went to zero tomorrow, which of these bills would I still legally or contractually owe? Those are your operating expenses. Everything else is a cost you could reduce or pause while you recovered.
Keeping Too Much Cash In A Checking Account Has Its Own Cost
Once you’ve hit your reserve target, parking excess cash in a low-interest business checking account is actually a financial decision with a cost attached. Inflation erodes purchasing power, and cash sitting at 0.01% interest while operating costs rise at 3% to 4% annually means you’re effectively losing ground.
For cash above your reserve target, there are better options: a high-yield business savings account (many are currently paying 4% to 5% APY), a money market account, or short-term Treasuries (T-bills) through TreasuryDirect. These keep your money liquid while earning something meaningful. The key is to keep your reserve itself in an account where you can access it within one to two business days, not in anything illiquid.
The right structure for most small businesses: one operating account for day-to-day transactions, one dedicated reserve savings account you don’t touch unless it’s a genuine emergency, and a separate account for tax set-asides. That separation alone prevents a lot of the cash flow confusion that trips up small business owners.
When Should A Small Business Start Building A Cash Reserve?
The honest answer is: from the first month you have positive cash flow. Most new businesses wait until they feel comfortable, which often means they wait too long. A reserve built slowly over 18 months is far more valuable than one you plan to build in a crisis.
A realistic starting framework: once your business covers its own operating expenses with at least 10% to 15% left over each month, begin routing a portion of that surplus (even $500 or $1,000) into a dedicated reserve account. The amount matters less than the habit. Automate the transfer on the same day every month so it never competes with other spending decisions.
For businesses that are pre-profitable or newly launched, the reserve timeline is different. In that phase, the goal is to have enough personal runway to support yourself while the business reaches sustainability, typically 6 to 12 months of personal living expenses, separate from whatever cash the business holds. A conversation with an accountant early on can help you map out both timelines at once.
A Business Line Of Credit Is Not A Substitute For Cash On Hand
A line of credit is a useful tool, but it’s not the same as a cash reserve and shouldn’t be treated as one. Lines of credit can be reduced, frozen, or called due in exactly the moments when you need them most: during economic downturns or if your business financials weaken. Banks have wide discretion to change the terms, and relying on credit availability as your safety net means your cushion could disappear the moment things get hard.
Cash reserves and credit lines serve different purposes. Your cash reserve covers operational continuity during a slow period or emergency with no interest cost and no approval process. A line of credit is better suited for short-term working capital needs, bridge financing, or opportunistic purchases: situations where you know revenue is coming and need to move before it arrives.
The strongest position for a Utah small business is to have both: a funded cash reserve that covers three to six months of expenses, plus a line of credit for tactical flexibility. That combination gives you genuine financial stability rather than the illusion of it.
Practical Steps For Utah Small Business Owners
Building a cash reserve is less about having the perfect number and more about making consistent progress toward it. Start by calculating your actual monthly operating expenses, not a rough guess, but a number you pull from your bank statements or bookkeeping records. Multiply by three to get your initial target. Open a separate savings account for the reserve and set up an automatic monthly transfer, even if it’s small. Revisit the target annually as your business grows.
If you’re not sure where your business stands, or if the cash flow picture is murkier than you’d like, that’s worth a conversation.
Ashford Sky works with Utah small businesses on cash flow planning, bookkeeping, and accounting, and we can help you build a reserve strategy that fits your actual numbers rather than a generic template.
