Figures: tax year 2026
Ordinary advance rent generally enters taxable income upon receipt, regardless of the period covered or the overall accounting method. When books initially record a liability, the receipt creates a current addition to book income and a later subtraction when book rental income is recognized.
Tax differences for advance service payments require their own timing analysis. For an eligible accrual-method taxpayer with an applicable financial statement and a valid deferral election, the financial-statement revenue portion is included currently. The remaining eligible advance generally enters income by the following tax year.
A refundable security deposit is distinguished from rent because an actual repayment obligation can prevent income recognition upon receipt. Supporting documentation establishes whether a receipt is rent, a deposit, or an eligible service advance before any timing rule is applied.
Review of an entity's adjusted book trial balance begins with its complete account population, including balance-sheet accounts that can conceal taxable receipts or prior-year reversals. A balanced trial balance establishes arithmetic equality without proving the completeness or accuracy of tax differences reported.
Common mistakes
- Adding federal tax twice. Starting from pretax income and adding $44,520 again incorrectly produces $212,000 + $44,520 = $256,520.
- Using the ending allowance. Norlen's $13,000 allowance exceeds the $9,000 current difference by $13,000 - $9,000 = $4,000.
- Reversing depreciation's sign. Adding $15,000 instead of subtracting it overstates income by $15,000 + $15,000 = $30,000.
Bottom line
- Permanent differences never reverse; temporary differences reverse as book and tax recognition catches up.
- M-1 additions increase taxable income relative to book income, while subtractions decrease it.
- Federal tax expense is added back only when it reduced the reconciliation's starting income.
- The Form 1120 reconciliation ends before the net operating loss deduction and special deductions.
Exam shortcut
Mark the starting income as pretax or after-tax before using any adjustment. Then write the required endpoint beside the calculation. For each source record, write book amount, tax amount and reversal year. Use tax minus book for revenue and book minus tax for expense when building the income bridge. When an M-3 column is requested, calculate the tax amount first and solve across the row.
The full lesson (about 5,819 words, 39 min read) adds 4 worked examples, all 6 common mistakes, a self-check, free in the app.
Learning objectives
- V.A1
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