Use annual net operating income and the property value or sale price stated in the question.
Texas cap rate, NOI, and GRM cheat sheet
Built for Texas sales agent exam prep. Fence the NOI, pick the formula direction, and ignore financing distractors before you calculate.
Reviewed August 30, 2026 · Pearson VUE outline #094401 · Current GSE definitions
Convert the cap rate to a decimal first. Use 8% as 0.08, not 8.
Use this when the question gives value and cap rate but asks for annual net operating income.
GRM uses gross rent, not NOI. Keep it separate from cap rate.
Rental income, vacancy, repairs, insurance, property taxes, management, and owner-paid utilities belong here.
Mortgage payment, down payment, debt service, depreciation, and owner income taxes stay outside cap-rate NOI.
The NOI Fence
- Start with annual rental income or other operating income.
- Subtract vacancy and collection loss if the stem gives it.
- Subtract operating expenses such as repairs, insurance, management, property taxes, and owner-paid utilities.
- Keep mortgage payments, down payment, debt service, depreciation, and owner income taxes outside NOI.
- Use the value, sale price, or current appraised value stated in the question.
Five worked examples
$96,000 - $6,000 - $32,000 = $58,000 NOI. $58,000 / $800,000 = 0.0725 = 7.25%.
$72,000 / 0.08 = $900,000.
Ignore the mortgage payment. $60,000 / $750,000 = 0.08 = 8%.
$650,000 x 0.07 = $45,500 NOI.
$1,000,000 / $125,000 = 8.0 GIM. Annual income produces GIM, not monthly GRM.
Traps to check
- Do not use gross income in the cap rate formula.
- Do not subtract mortgage payments when finding NOI.
- Do not use 8 instead of 0.08 for an 8% cap rate.
- Do not use loan amount or down payment as the property value.
- Do not mix GRM and cap rate. GRM uses gross rent. Cap rate uses NOI.
Work it without the answer showing
Label the income period and fence NOI before selecting a formula. Show the decimal conversion for every capitalization rate.
- Income level
- Formula
- Substitution
- Answer
- Income level
- Formula
- Substitution
- Answer
- Income level
- Formula
- Substitution
- Answer
Answer key
- Vacancy and collection loss is $144,000 x 0.06 = $8,640. EGI is $135,360. NOI is $135,360 - $38,000 = $97,360. Cap rate is $97,360 / $1,200,000 = 8.1133%, rounded to four decimal places.
- $84,000 / 0.07 = $1,200,000 indicated value by direct capitalization.
- $360,000 / $3,000 = 120 GRM. Annual rent would be $36,000 and $360,000 / $36,000 = 10 GIM, which is a different period and scale.
Sanity check
- For the same NOI, a higher cap rate means a lower indicated value.
- For the same NOI, a lower cap rate means a higher indicated value.
- If your answer moves the opposite way, you probably flipped the formula.
- Cap rate times value should approximately recreate NOI.
Use the calculator, Math Coach, Trap Library, and Texas-specific questions at passtexasrealestate.com.