Start with the model, then try the transfer question. These are teaching calculations, not a tax return or a payment recommendation. Use fictional figures. Reloading clears your work. Printing includes all sections.
Explain the bank deposit
The platform reports gross activity. The bank receives a payout. Build the bridge before deciding how income and costs belong on a tax return.
Gross receipts are not profit
A Form 1099-K is an information report. A reserve increase explains a cash timing difference; it is not automatically a deductible expense. Check the agreement and accounting method before deciding income timing.
Try a transfer
Keep the gross amount, refunds and fees unchanged. Release $300 from the reserve instead of withholding $500. Predict the payout before recalculating. Which change affects cash, and which changes the earnings calculation?
Check your reasoning
The payout becomes $10,400. A release adds cash; it does not by itself create a new sale. The signed reserve balance is the clue.
Source: IRS Form 1099-K overview and IRS Publication 583.
Match miles to their dates
Jordan documented 2,000 eligible business miles in the first half of 2026 and 3,000 in the second half. The optional business rate changed on July 1.
The rate is only one part
- Document the date, destination, business purpose and miles.
- Keep total annual miles and distinguish business, commuting and personal use.
- Check eligibility to use standard mileage; method elections and prior depreciation matter.
- Do not add gas, repairs or depreciation again when those costs are included in the standard rate.
Try a transfer
Move 100 eligible miles from June to July. How much does the illustration change?
Check your reasoning
The amount increases by $3.50: 100 × ($0.76 − $0.725). Records establish the actual dates; they cannot be moved to improve a deduction.
Sources: IRS mileage rates, Announcement 2026-11, Publication 463.
Federal planning target
Use tax figures derived under the current Form 1040-ES instructions, after applicable credits and before withholding. These inputs are not gross income.
California allocation
Enter the required annual payment already derived from the California worksheet. This lab allocates that input; it does not choose your California safe harbor.
The worksheet must account for California-specific rules, including the current-year method required at California AGI of $1 million or more ($500,000 if married/RDP filing separately). Special rules can apply after changes in filing status, to nonresidents and to uneven income.
2026 California Form 540-ES instructions
Timing check
Federal regular 2026 dates: April 15, June 15, September 15 and January 15, 2027. California generally allocates 30%, 40%, 0%, 30%. Confirm applicable disaster relief and exceptions before acting.
Explain your choice
Select an answer and read the feedback. These are practice questions, not a graded course assessment.
Build a repeatable routine
Choose the next action that makes your records easier to explain.
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