Joe
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- Jun 4, 2012
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Also, another method used to determine affordability is to calculate what the ratio of the total mortgage payment is to your monthly income**. The current recommendation is 28%, but the recommendation seems to have slowly increased over the years. When I first looked at buying a house, the recommended ratio was 20%.
** Example: Monthly gross income $5,000. Monthly mortgage payment: $1,500. To calculated the ratio: divide $5,000 by $1,500. In this example the ratio would be 30%...which is too much (1,500/5,000).
The OP is in the UK, and I have no idea what their tax laws are. But when I have seen such formulas in the US, they have used the net cost of owning the home. Since mortgage interest and property taxes are deductible on one's income tax, the monthly value of these deductions is subtracted from the total mortgage payment before calculating the ratio.
Important: Use your total monthly mortgage payment in the calculation!!! This includes interest, principle, property taxes***, home owners insurance, and anything else that is included in the total monthly payment (they will also include the cost of default insurance if you don't meet certain criteria). Do NOT make the mistake of assuming your payment is solely principle and interest.
(Emphasis added.)
I think that should be mortgage principal, not principle.