Goals that tell you the date
A savings goal has four numbers you know — target, saved, monthly contribution, the date
you want it by — and three you want: what’s left, when you’ll get there, and whether that’s
in time. The sheet gives the three: months to go is what’s left over the contribution,
rounded up; projected is the as-of date plus those months; on track is green when projected
beats the date. A goal with no contribution says “No contribution” instead of dividing by
zero, and a funded one says Done.
One more number, at the bottom: the monthly contribution that would hit every date. Each
remaining amount spread over its months, added up — one SUMPRODUCT. Compare it to what you
put in now.
Pro: what you’re worth, and the trend
Net worth is the list of accounts with a balance each — liabilities typed negative — and a
type from Setup that says asset or liability, so net worth is a sum and the split is a
SUMIF. Snapshots keeps twelve months of those balances, one column per account, and works
out assets, liabilities, net worth and the month’s change; a kind line above the header lets
SUMIF split each row without a formula per account.
Checked, not just built
The build recalculates both workbooks in LibreOffice and in a second, independent engine
and compares thirty-nine values — months and on-track for goals that make and miss their
dates, the needed-per-month total, assets, liabilities and net worth, specific snapshot
months and their change — against numbers computed outside Excel.