IRS Payment Plan for Small Business: How to Set One Up and What to Expect

Getting a tax bill you can't pay in full is stressful. But ignoring it is far worse — the IRS charges interest and penalties that compound quickly, and eventually they have tools to collect that you really don't want them to use.

The good news: the IRS has a formal process for businesses that can't pay in full. It's called an installment agreement, and for most small businesses, it's straightforward to set up.

Here's what you need to know.

An installment agreement is a payment plan that lets you pay your tax debt over time — monthly — instead of all at once. The IRS offers several types, but for most small businesses with a balance under $25,000, the process is relatively simple and can be done online.

You still owe the full amount, plus interest and a setup fee. But you avoid the more aggressive collection actions the IRS can take when a balance goes unaddressed.

If you can pay the full balance within 120 days, you can set up a short-term plan with no setup fee. Interest and penalties still accrue, but there's no monthly payment structure — you just pay the balance before the deadline.

Best for: Businesses that have a temporary cash flow gap but can pay in full within a few months.

For balances you can't pay within 120 days, a standard installment agreement lets you pay monthly over up to 72 months (6 years). There's a setup fee ($31 online, $107 by phone or mail, $225 in person — fees are lower if you set up automatic payments).

Best for: Businesses with a balance they need to spread out over time.

If your business owes payroll taxes (trust fund taxes) of $25,000 or less, you may qualify for this streamlined option, which allows up to 24 months to pay without a full financial disclosure.

Best for: Businesses with payroll tax debt under $25,000.

For individual tax debt (Schedule C filers, sole proprietors) under $50,000, you can apply at IRS.gov using the Online Payment Agreement tool. It takes about 10 minutes and you get immediate confirmation.

For business entities (LLCs, S-Corps, partnerships) with balances under $25,000, you can also apply online.

If your balance is over the online threshold, or if you have a more complex situation, you'll need to call the IRS Business line (1-800-829-4933) or submit Form 9465 (Installment Agreement Request) by mail.

For larger balances, the IRS may require a Collection Information Statement (Form 433-B) that details your business assets, income, and expenses.

Setting up a payment plan doesn't stop interest and penalties from accruing — they continue until the balance is paid in full. The current IRS interest rate is the federal short-term rate plus 3%, compounded daily. The failure-to-pay penalty is 0.5% per month on the unpaid balance.

This means the longer you take to pay, the more you owe. If you can pay faster than the plan requires, do it.

If you miss a payment, the IRS can default your installment agreement and resume collection activity. Set up automatic payments to avoid this.

The IRS requires you to stay current on all future tax obligations while on a payment plan. If you fall behind on current-year taxes while paying off old ones, your agreement can be terminated.

This is where bookkeeping matters: if your books are accurate and you're making quarterly estimated tax payments on time, you won't add new debt while paying off old.

If you owe payroll taxes (the taxes you withheld from employees but didn't remit), the IRS treats these as a higher priority than income taxes. The Trust Fund Recovery Penalty can make you personally liable for these amounts even if your business is an LLC or corporation. Don't let payroll taxes go unpaid.

Before you set up a payment plan, make sure you know exactly what you owe and why. If your books are inaccurate, you might be paying more than you actually owe — or you might be missing deductions that would reduce the balance.

A bookkeeping cleanup before you engage with the IRS can sometimes change the picture significantly.

The Gap ProAdvisors can help you get your books accurate and work with your tax preparer to make sure you're not overpaying. Contact us to get started, or get a flat-rate cleanup quote if your books need work first.