Assuming this includes income tax take these expenses and subtract all transfer payments and pensions and annuities. Multiply this by 15. This gives a very conservative needed amount, assuming 0% real return on a portfolio assets and no planned liquidation.
To give a much more generous but likely adequate allowance, take the net amount of your invested assets, and deplete annually by the IRS factor for RMDs, for the younger member of your pair.
Somewhere between these two amounts will be what you are looking for.
Since it has likely been quite a while since you added any money from earned income, this exercise is more or les meaningless for you. What you need to decide is how much can you safely draw, not how much do you need. That ship has sailed.
Ha
Thanks, Ha... a gutsy reply... and very much appreciated...
First... $25K/yr SS, leaving $15K/yr from other sources.
So now, to add some details, and a little different viewpoint...
No plans to leave a legacy.
No taxes
Ultra conservative investments Ibonds, 1% CD's.
Small annuity, to liqudate
Home equity planned for liquidation.
Life expectancy 10.2 years.
In other words, a cash amount... what I would call net worth, though that's not the way it's done here on ER.
Another way of looking at later retirement. BTW... not 80 yet.
So, yeah... a custom plan...
It's pretty interesting when it comes to that time in life, when income and outgo is more or less fixed. Assuming zero interest... and no inflation, that supplemental $15K/year would only require an actual net worth of $150K.
BTW... this is strictly theoretical, but I think makes a point about the concept of a phase II in retirement, instead of a one time long term estimate based on current expenses. Our experience is that after age 70, expenses dropped off quite rapidly, and leveled out between 15K and 20K below the more active spending years.
By comparison, a liquidation value net worth of $1Million would allow an annual budget of $125K... We went into the "comfort zone" at age 75, when planning became less a matter of formulas that were necessarily general, and more of an actual dollars and cents proposition.