ERD50 & martyp: Exactly!
A lot of the "analyses" that people toss out are as sound as the people who say "I got a raise that put me into the next tax bracket and my taxes went up more than my raise was."
There have been countless throrough analyes of having vs. not having a mortgage in retirement, and they always show that there is only a trivial difference. So when somebody says that there is a BIG difference (like "need double the cash flow") it generally means that they have not done comprehensive calculations on the actual financial data but merely took a SWAG.
The thing that they usually get wrong is failing to realize that the money to pay off the mortgage principal would otherwise be in an investment or savings account.
When we were out today I got to wondering about this, and wondered, "If I had a $100K mortgage at 3.75%, and I needed to make the payments entirely by withdrawals from a savings account (consisting of CDs, bonds, etc.) how much money would I need in that account to start off with?" Note that you'd be drawing down principal from that account, rather than needing just the interest to make the mortgage payment. That's a different question.
Presuming that you had $100K in the account, which is what you'd use to pay off the mortgage today if you decided to, what interest rate would it have to earn so that it covered 100% of the mortgage payment?
So I fired up an on-line calculator and put the numbers in. What it said made me go . Duh!!
A savings account that you make monthly withdrawals from is the mirror image of a mortgage that you make monthly payments to. They are identical. The only difference is in which one is the payor and which one is the payee.
A $100K 30 year mortgage is a payment of $463.12/mo. An investment account that starts off with $100K, earning 3.75%, with a monthly withdrawal of $463 is depleted to zero in 30 years.
It's a wash!
But, what if your account can earn 5.0%? Taking that same $463 monthly withdrawal to make the mortgage payment, after 30 years the account balance is $60K. So you paid off your $100K mortgage but depleted the account by only $40K.
What if your account can earn 6%? You'd make the same $463/mo withdrawal to make the mortgage payment, after 30 years the mortgage would be paid off, and your account balance would be $135K.
This is the kind of analysis that astute money managers go through in deciding whether to pay off the mortgage or keep the mortgage and keep the money invested. If you can earn more than 3.75% on your investments, the financially superior thing is to have the mortgage. You don't have to worry about making the payments, and you don't have to double your cash flow (since the cash inflow from the investments balances the cash outflow for the mortgage).
Of course, there is more to life than finances. Emotionally, some people would rather not have the mortgage payment and don't want to be concerned about balancing out investment cash flows.
A lot of the "analyses" that people toss out are as sound as the people who say "I got a raise that put me into the next tax bracket and my taxes went up more than my raise was."
There have been countless throrough analyes of having vs. not having a mortgage in retirement, and they always show that there is only a trivial difference. So when somebody says that there is a BIG difference (like "need double the cash flow") it generally means that they have not done comprehensive calculations on the actual financial data but merely took a SWAG.
The thing that they usually get wrong is failing to realize that the money to pay off the mortgage principal would otherwise be in an investment or savings account.
When we were out today I got to wondering about this, and wondered, "If I had a $100K mortgage at 3.75%, and I needed to make the payments entirely by withdrawals from a savings account (consisting of CDs, bonds, etc.) how much money would I need in that account to start off with?" Note that you'd be drawing down principal from that account, rather than needing just the interest to make the mortgage payment. That's a different question.
Presuming that you had $100K in the account, which is what you'd use to pay off the mortgage today if you decided to, what interest rate would it have to earn so that it covered 100% of the mortgage payment?
So I fired up an on-line calculator and put the numbers in. What it said made me go . Duh!!
A savings account that you make monthly withdrawals from is the mirror image of a mortgage that you make monthly payments to. They are identical. The only difference is in which one is the payor and which one is the payee.
A $100K 30 year mortgage is a payment of $463.12/mo. An investment account that starts off with $100K, earning 3.75%, with a monthly withdrawal of $463 is depleted to zero in 30 years.
It's a wash!
But, what if your account can earn 5.0%? Taking that same $463 monthly withdrawal to make the mortgage payment, after 30 years the account balance is $60K. So you paid off your $100K mortgage but depleted the account by only $40K.
What if your account can earn 6%? You'd make the same $463/mo withdrawal to make the mortgage payment, after 30 years the mortgage would be paid off, and your account balance would be $135K.
This is the kind of analysis that astute money managers go through in deciding whether to pay off the mortgage or keep the mortgage and keep the money invested. If you can earn more than 3.75% on your investments, the financially superior thing is to have the mortgage. You don't have to worry about making the payments, and you don't have to double your cash flow (since the cash inflow from the investments balances the cash outflow for the mortgage).
Of course, there is more to life than finances. Emotionally, some people would rather not have the mortgage payment and don't want to be concerned about balancing out investment cash flows.