A housing budget begins with gross monthly income, required monthly debts, and the full PITI payment: principal, interest, property taxes, and homeowners insurance. For $8,000 gross income and $1,200 other required debts, a planning cap of 36% DTI leaves $1,680 per month for PITI; that is a scenario, not a lender approval or a home-price answer.
how much house can i afford: the measured relationship
Housing affordability is the relationship between income, recurring debt obligations, the full monthly home payment, available cash, and a lender's program rules. DTI is the ratio; affordability converts the remaining payment capacity into a property scenario. PITI explains the components of that monthly capacity, while down payment and closing costs address the cash needed before ownership begins.
| Gross monthly income | $8,000 |
|---|---|
| Planning DTI cap | 36% |
| Total debt allowance | $2,880 per month |
| Other debts | $1,200 per month |
| PITI allowance | $1,680 per month |
how much house can i afford: a worked dollar case
Start with $8,000 gross monthly income. At a self-chosen 36% total-debt ceiling, the modeled maximum debt payments are $2,880. Subtract $1,200 of auto, student, and card minimums to leave $1,680 for PITI. If principal and interest on a candidate loan are $1,350, the remaining $330 must cover property tax and homeowners insurance; a $1,350 payment alone is not the housing budget.
how much house can i afford: calculation method
A planning formula is: PITI allowance = gross monthly income × chosen DTI percentage − other required monthly debt payments. Convert a price to a payment only after entering down payment, loan amount, note rate, term, annual property tax, insurance, and any association dues separately.
housingledger related calculations: mortgage payment estimate; loan payment calculation; amortization schedule.
Audit the How much house can I afford? Use income, debts, and PITI scenario
housingledger timing check. Record Gross monthly income as $8,000. housingledger timing review changes Planning DTI cap to 36% and keeps the unit beside the figure. A housingledger timing comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger cash-flow check. Record Planning DTI cap as 36%. housingledger cash-flow review changes Total debt allowance to $2,880 per month and keeps the unit beside the figure. A housingledger cash-flow comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger rate check. Record Total debt allowance as $2,880 per month. housingledger rate review changes Other debts to $1,200 per month and keeps the unit beside the figure. A housingledger rate comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger balance check. Record Other debts as $1,200 per month. housingledger balance review changes PITI allowance to $1,680 per month and keeps the unit beside the figure. A housingledger balance comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger disclosure check. Record PITI allowance as $1,680 per month. housingledger disclosure review changes Gross monthly income to $8,000 and keeps the unit beside the figure. A housingledger disclosure comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger schedule check. Record Gross monthly income as $8,000. housingledger schedule review changes Planning DTI cap to 36% and keeps the unit beside the figure. A housingledger schedule comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger threshold check. Record Planning DTI cap as 36%. housingledger threshold review changes Total debt allowance to $2,880 per month and keeps the unit beside the figure. A housingledger threshold comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger payment check. Record Total debt allowance as $2,880 per month. housingledger payment review changes Other debts to $1,200 per month and keeps the unit beside the figure. A housingledger payment comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger property check. Record Other debts as $1,200 per month. housingledger property review changes PITI allowance to $1,680 per month and keeps the unit beside the figure. A housingledger property comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger income check. Record PITI allowance as $1,680 per month. housingledger income review changes Gross monthly income to $8,000 and keeps the unit beside the figure. A housingledger income comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger insurance check. Record Gross monthly income as $8,000. housingledger insurance review changes Planning DTI cap to 36% and keeps the unit beside the figure. A housingledger insurance comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
housingledger term check. Record Planning DTI cap as 36%. housingledger term review changes Total debt allowance to $2,880 per month and keeps the unit beside the figure. A housingledger term comparison recalculates the stated relationship from those two dated inputs, instead of reusing a rounded intermediate amount.
Keep a decision record
housingledger timing record. The housingledger worksheet pairs Total debt allowance ($2,880 per month) with Other debts ($1,200 per month). A housingledger timing decision tests the effect of that pair before adding another assumption. Keep the housingledger timing source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger cash-flow record. The housingledger worksheet pairs Other debts ($1,200 per month) with PITI allowance ($1,680 per month). A housingledger cash-flow decision tests the effect of that pair before adding another assumption. Keep the housingledger cash-flow source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger rate record. The housingledger worksheet pairs PITI allowance ($1,680 per month) with Gross monthly income ($8,000). A housingledger rate decision tests the effect of that pair before adding another assumption. Keep the housingledger rate source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger balance record. The housingledger worksheet pairs Gross monthly income ($8,000) with Planning DTI cap (36%). A housingledger balance decision tests the effect of that pair before adding another assumption. Keep the housingledger balance source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger disclosure record. The housingledger worksheet pairs Planning DTI cap (36%) with Total debt allowance ($2,880 per month). A housingledger disclosure decision tests the effect of that pair before adding another assumption. Keep the housingledger disclosure source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger schedule record. The housingledger worksheet pairs Total debt allowance ($2,880 per month) with Other debts ($1,200 per month). A housingledger schedule decision tests the effect of that pair before adding another assumption. Keep the housingledger schedule source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger threshold record. The housingledger worksheet pairs Other debts ($1,200 per month) with PITI allowance ($1,680 per month). A housingledger threshold decision tests the effect of that pair before adding another assumption. Keep the housingledger threshold source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger payment record. The housingledger worksheet pairs PITI allowance ($1,680 per month) with Gross monthly income ($8,000). A housingledger payment decision tests the effect of that pair before adding another assumption. Keep the housingledger payment source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger property record. The housingledger worksheet pairs Gross monthly income ($8,000) with Planning DTI cap (36%). A housingledger property decision tests the effect of that pair before adding another assumption. Keep the housingledger property source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger income record. The housingledger worksheet pairs Planning DTI cap (36%) with Total debt allowance ($2,880 per month). A housingledger income decision tests the effect of that pair before adding another assumption. Keep the housingledger income source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger insurance record. The housingledger worksheet pairs Total debt allowance ($2,880 per month) with Other debts ($1,200 per month). A housingledger insurance decision tests the effect of that pair before adding another assumption. Keep the housingledger insurance source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
housingledger term record. The housingledger worksheet pairs Other debts ($1,200 per month) with PITI allowance ($1,680 per month). A housingledger term decision tests the effect of that pair before adding another assumption. Keep the housingledger term source document with the result, because a revised statement, disclosure, assessment, or account term changes the input rather than the arithmetic.
Common mistakes in How much house can I afford? Use income, debts, and PITI
Do not use annual salary with monthly debts without converting one side. Do not omit property taxes or insurance because they are escrowed; escrow changes how they are paid, not whether they cost money. A low payment can also conceal a short loan term, future rate reset, or small cash reserve.
Where this calculation stops
No universal DTI percentage fits every borrower or loan program. Income stability, debt rules, credit history, property taxes, insurance, mortgage insurance, rate type, cash to close, maintenance, and local rules can all alter a real decision. Test a lower-payment scenario as well as the maximum.
how much house can i afford: source check
The Consumer Financial Protection Bureau identifies PITI as the four basic elements of a monthly mortgage payment and says annual income is generally pre-tax income in a mortgage application. Read the named source. The housingledger record should be reconciled to the disclosure, statement, tax bill, or agreement that governs that exact transaction.
how much house can i afford: using the output
The housingledger output keeps each input's named unit and date adjacent to the result. Update the housingledger scenario when its rate, balance, payment, or property value changes.