Thank you for your response. When using a excel spreadsheet and calculating average balance for all loans I only get 592K. It seems the IRS rules as your stating them, are designed to reduce my deduction, rather than be accurate? I feel sorry for people with adjustable mortgages too, as they want you to use the lowest rate for averaging rather than using and adjusting the rates for each month.
These publications need more examples and clarification as I did not interpret this statement the same way you did as my short loan was secured at all times and was paid monthly until it was paid off. They should be clear if it is a requirement the loan be for the entire year and no partial years are allowed to be calculated?
Interest paid divided by interest rate method. You can use this method if at all times in 2023 the mortgage was secured by your qualified home and the interest was paid at least monthly.
Thank you for your help, I appreciate it!
There is a consensus based on conclusions made in IRS memorandum 201201017 (2012) that allows tax payers to use any reasonable method to determine the amount of deductible interest.
In my opinion, a reasonable way when a main home is sold and a new main home is purchased in the same year is to amortize the average balance over 12 months. Pick one of your purchased homes as your new main home. For the sold main home and new main home loan total up monthly balances for Jan through Dec, with 0 for the months the loan was not held. Also zero out the balance and interest for one of these homes in the months the loans overlap. Total up the balances and divide by 12. This is a reasonable average balance for your 'main home' during the year. Add this to the average balance of your other purchased home, your 'second home' during the year.
However, since your sold home was only held for the first two month of the year, it would be simpler to just declare the home as not secured in Turbo Tax. Should get the same result.
Note: You can use the interest paid divided by the interest rate when the mortgage is held for less than 12 months if you divide the result by the percentage of months it was held.