Zero-based budgeting
Build this year's budget from zero, not from a copy of last year's.
Zero-based budgeting builds each year's budget from zero, requiring every line to be justified fresh rather than carried forward. It removes obsolete spending and forces directors to question the status quo, but it takes more board time to prepare than starting from last year's numbers.
Start from zero, not last year's line
Zero-based budgeting means exactly what it sounds like: the board builds each line item as if the association had never spent money on it before. Nothing is assumed. Landscaping, insurance, the management contract, all of it has to be justified from a base of zero for the coming year, not adjusted from what was spent last year.
"the budgeting process starts from a base of zero, with no reference being made to the prior period's budget or actual performance"
Source: Comparing budgeting techniques (Incremental v ZBB), ACCA
That's the opposite of incremental budgeting, where the board takes last year's budget or actual spending and adjusts it up or down.
Why a board picks it: nothing rides for free
Incremental budgeting is comfortable for a reason. If a line was $4,000 last year, it's easy to pencil in $4,200 this year and move on. But that comfort is exactly the weakness zero-based budgeting is built to fix. A contract nobody has questioned in six years, a service the association no longer needs, a line that quietly grew every year for no clear reason: these survive incremental budgeting because nobody has to defend them. Zero-based budgeting removes obsolete spending because it requires someone to defend every line, every year, from scratch.
For an HOA board, this matters most for discretionary lines a finance committee has never really scrutinized, not for lines a reserve study or state disclosure requirement already pins down.
The cost: it takes longer
Zero-based budgeting isn't free. Building every line from scratch takes more board and committee time than adjusting a known number, and volunteer boards are usually short on exactly that.
"the budget is prepared by taking the current period's budget or actual performance as a base, with incremental amounts then being added for the new budget period"
Source: Comparing budgeting techniques (Incremental v ZBB), ACCA
Incremental budgeting is faster and cheaper to prepare, and easier to hand to a junior staffer or committee member, at the cost of carrying forward spending nobody re-examines. Neither method is required by state law or governing documents; which one your board uses is a policy call the board can make for itself, and can change from year to year.
Check yourself
Answer before you read the explanation, recalling it is what makes it stick.
A new treasurer notices the landscaping line is always set to last year's number plus three percent, with no discussion of what the money actually buys. What budgeting approach is the board using?
The board wants to catch spending lines that have quietly persisted for years without anyone asking whether they're still needed. Which approach forces every line to be justified again from zero?
The finance committee has three days before the vote and no time to rebuild every line from scratch. Which approach fits that timeline?
Sources
- Comparing budgeting techniques (Incremental v ZBB), Association of Chartered Certified Accountants (ACCA)
Budgeting
Curious what a board actually weighs when choosing between the two methods line by line? See Building the annual budget.
No state law or standard-setting body requires a board to use zero-based or incremental budgeting; it's a board policy choice. What varies is how much your governing documents, finance committee charter, or reserve study already dictate for specific lines, check those before assuming the whole budget is up for a from-zero rebuild.