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The 3 Self-Employment Tax Mistakes I See Every Week

At Toozi, we help freelancers and small business owners manage their back office by text. After thousands of conversations, the same three tax mistakes come up over and over. Here's what they are and how to avoid them.

1. Not Setting Aside Money for Self-Employment Tax

When you're employed by a company, your employer pays half of your Social Security and Medicare taxes. When you're self-employed, you pay both halves — that's 15.3% on top of your income tax. Most new freelancers don't realize this until they get their first tax bill.

The fix: Set aside 25–30% of every payment you receive. Toozi does this automatically — text Toozi when you get paid, and it calculates your tax allocation on the spot.

2. Missing Quarterly Estimated Tax Payments

The IRS expects self-employed people to pay taxes four times a year, not once. Miss a deadline, and you'll owe a penalty — even if you pay everything by April 15. The quarterly deadlines (April 15, June 15, September 15, January 15) don't follow a logical pattern, which makes them easy to forget.

The fix: Automate reminders. Toozi sends you a heads-up two weeks before each deadline with your estimated amount. No calendar searching required.

3. Not Tracking Deductible Expenses in Real Time

The home office deduction, mileage, software subscriptions, professional development — these add up. But most freelancers only think about deductions in March, when it's too late to reconstruct what they spent in June.

The fix: Log expenses as they happen. Even a quick text to Toozi saying “paid $49 for Canva” creates a record you'll be grateful for later.

The Pattern

All three mistakes share a root cause: freelancers don't have a system that works with their actual workflow. Desktop accounting software assumes you'll sit down and do bookkeeping. You won't. Toozi meets you where you already are — your phone.

Start tracking by text.

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