Quarterly Estimated Tax

Quarterly estimates calculated from the client’s actual income data — with self-employment tax computed separately from income tax, the way it should be.

Generic percentages create real penalties

“Set aside 25–30%” is not a tax strategy. Clients who underpay eat IRS penalties; clients who overpay starve their own cash flow for months. And SE tax is the classic miss: 15.3% on net self-employment earnings, calculated on its own base, before income tax even enters the picture.

What it does

• Calculates estimates from real categorized income and expenses — not rules of thumb
• Computes SE tax separately: Social Security and Medicare on the correct base
• Updates the projection every time new statements are processed
• Tracks the four payment deadlines with what’s due and what’s been paid

How you use it

1. Keep statements currentThe estimate recalculates as real numbers replace projections.
2. Review each quarterAdjust for anything the data can’t know — a planned sale, a new hire.
3. Send the voucher amountYour client pays the right number, on time, four times a year.