Filing Day

A reconciliation puzzle where one document in the pile carries a wrong number, and only careful arithmetic will catch it before you file.

How to play

You're handed a set of income, deduction, and credit documents. The return is computed live from them — but exactly one figure doesn't reconcile. Find and click that document before filing.

• Read the gross income, deductions, taxable income, marginal tax, and credits as they total up.
• Click the one document whose amount doesn't add up; a wrong pick costs you and you keep hunting.
• Drag the marginal-bracket slider — or hit the raise button — to see how only the income inside each band is taxed at its rate.
• Use a Hint if you're stuck (it costs score). Score rewards catching the mismatch fast with few wrong guesses and hints.

Controls

• Desktop: click documents, drag the bracket slider, click Daily / Practice / Hint buttons.
• Phone & tablet: tap documents and buttons, drag the slider with your finger.

Tips & strategy

• Sanity-check each figure against the others — a deduction or credit that's wildly off is usually the tell.
• Watch the effective rate stay below the top marginal rate; a raise never lowers your take-home, which the bracket bars prove.

What you'll learn

Filing Day turns spot-the-error deduction into a lesson on marginal tax brackets and reconciliation.

• Skills: income tax, marginal tax brackets, financial literacy, attention to detail
• Best for: roughly grades 9–12 (ages 14+)
• For parents & teachers: how tax brackets actually work.

About Filing Day

Filing Day turns spot-the-error deduction into a lesson on marginal tax brackets and reconciliation. It is an original, free browser game built in-house.

A free, original browser game on PlayPendium — no download, no install. Browse all games →