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Interactive tool

GDS & TDS calculator

GDS (Gross Debt Service) and TDS (Total Debt Service) are central to mortgage qualification. Model your numbers in real time.

payments

Gross annual income

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Include bonuses and commissions if they have been stable for about two years.

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Housing costs (monthly)

Don't know your payment or taxes? Stay in Estimate mode: enter the target price and your down payment, we work out the rest.

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yrs

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Mortgage payment, property tax and heat are estimated automatically (tax ≈ 1%/yr of price, heat is a standard flat amount). Switch to "I know my numbers" to enter them yourself. Property tax varies by municipality.

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Other debts (monthly)

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