Quarterly Estimated Taxes
If you're self-employed, the IRS doesn't wait until April. Here's how much to set aside, when to pay, and how to avoid the underpayment penalty.
By Blake Miller · Founder
Active party rental operator · Florida6 min read
Why quarterly payments exist
When you have a W-2 job, taxes come out of every paycheck. When you're self-employed, the IRS expects the same pay-as-you-go behavior, except you have to send the checks. If you owe more than $1,000 at filing time and didn't pay enough during the year, you get hit with an underpayment penalty.
When payments are due
Federal estimated tax due dates (these can shift if a date falls on a weekend or holiday):
- Q1 (Jan, Mar income): April 15
- Q2 (Apr, May income): June 15
- Q3 (Jun, Aug income): September 15
- Q4 (Sep, Dec income): January 15 of the following year
Most states have their own quarterly schedule too, usually aligned with federal, but confirm.
A simple rule for how much to set aside
For a typical party rental owner, setting aside 25% to 30% of net profit in a separate savings account is a solid starting point. That covers federal income tax, self-employment tax (~15.3%), and most state income taxes. Higher earners or high-tax states should aim for 30% to 35%.
Open a dedicated "tax" savings account, transfer the percentage every time a customer pays you, and don't touch it. This single habit prevents 90% of small-business tax disasters.
The "safe harbor" rule
You avoid the underpayment penalty if you pay (through withholding + estimates) at least one of the following during the year:
- 90% of the current year's tax liability, OR
- 100% of last year's total tax (110% if your prior-year AGI was over $150K).
The 100%-of-last-year option is the easy one: take last year's total tax, divide by four, send that amount each quarter. As long as you do that, no penalty, even if you make wildly more this year.
How to actually pay
- IRS Direct Pay (irs.gov/payments), free, no account needed, ACH from your bank.
- EFTPS, free, requires enrollment, better for businesses making regular payroll deposits.
- State portals, most state revenue departments have an equivalent online payment system.
Seasonal businesses
Party rentals are wildly seasonal in most markets. The IRS allows an "annualized income installment" method that lets you pay smaller estimates in slow quarters and larger ones during peak season. It's complex, worth asking your CPA about if your spring/summer dwarfs your winter.
Educational only, not tax advice
This article is general information for party rental business owners. Tax law changes frequently, varies by state and entity type, and depends on your specific situation. Before making any decision based on what you read here, talk to a licensed CPA or tax professional who understands small business and equipment-heavy operations.