A single Excel spreadsheet that calculates your self-employment tax, federal income tax, and quarterly estimated payments — so you never overpay or get surprised at tax time.
Underpay and get hit with penalties. Overpay and lose cash flow for months until your refund arrives.
Self-employment tax only applies to 1099 income, but federal brackets apply to everything. Getting this wrong changes the math dramatically.
Seven progressive brackets, a Social Security wage cap, Additional Medicare thresholds — too many moving parts to calculate on a napkin.
Most freelancers earn unevenly. A big contract in Q3 pushes you into a higher bracket. Your Q4 payment should reflect that — most tools don't.
Enter your income as you earn it. Select your filing status. The spreadsheet calculates everything else — SE tax, federal tax, deductions, and your exact quarterly payment amount.
Every formula is live. Change one input and the entire workbook recalculates instantly.
Your dashboard. Filing status dropdown, deductions, income summary, SE & federal tax calculation, and quarterly payment schedule — all in one view.
Log your 1099 and freelance income by date. Auto-calculated quarters, running totals, and a live quarterly summary on the side. Room for 1,000 entries.
Track W-2 wages or other ordinary income alongside your SE earnings. Same layout, same auto-calculations, same 1,000-entry capacity.
Every 2026 rate and bracket in one place — fully editable yellow cells. SE tax rates, standard deductions, and federal brackets for all four filing statuses.
Both methods run side by side, so you always have two perspectives on what you owe.
Uses your real income to date. Tax is calculated on cumulative income at the end of each quarter using progressive brackets, then each quarter's payment is the incremental tax for that period.
Projects your full-year tax based on your actual earning pace. Log a few invoices in January and it immediately estimates your annual liability. The projection sharpens with every entry you add.
Sourced from IRS Revenue Procedure 2025-32, including changes from the One Big Beautiful Bill Act.
One .xlsx file. Yellow cells are your inputs. Everything else is automatic.