Marketing Budget Planning for the Next Fiscal Year

Marketing budget planning for the next fiscal year starts with last year's real numbers

You're two weeks from the planning deadline and the deck from last year is still open on your second monitor. The numbers in it were never true — they were the ask, not what happened. Somewhere between January and now, one channel ran over by a third, another sat half-spent because a vendor contract fell through, and nobody updated the master plan to say so. Now leadership wants next year's number by Friday, and you're staring at a spreadsheet that hasn't matched reality since March.

This is the part of the job nobody trains you for: not choosing channels, but reconciling what you spent against what you said you'd spend, and turning that gap into next year's starting point. Marketing budget planning for the next fiscal year isn't a blank-page exercise. It's an audit followed by a forecast, and the audit is the part most plans skip.

Here's a way through it: pull this year's actuals first, set the fiscal-year start you're actually building against, roll each channel forward line by line, lay the campaign calendar over the new numbers, and walk into the approval conversation with a variance history instead of a guess.

Start with what actually happened this year, not the plan you wrote

Before you touch next year's figures, close out this year's. For every channel line — paid search, content, events, agency retainers, tools — pull three numbers: what was planned, what was actually spent, and the variance between them (actual minus planned). Do this even for channels that felt "on track"; a line that looks fine at the annual level can still be badly timed underneath, spent in the wrong quarter even if the yearly total lines up.

If you don't already have this broken out by channel and by month, this is the first gap to close, and it's worth closing before you build anything new. A channel you can't explain in hindsight is a channel you can't forecast with any confidence going forward.

Set the fiscal-year start before you touch a number

Marketing budget planning for the next fiscal year depends on one decision made correctly before anything else: when does the year actually start for your organization? Calendar-year (January), a July start tied to a school or government cycle, an October start tied to a parent company's fiscal calendar — the start date determines which actuals belong to which year, and getting it wrong quietly corrupts every rollup that follows.

If your organization's fiscal year doesn't start January 1, make sure whatever you're using to plan and track the budget lets you configure that start month — otherwise you'll spend the year manually shifting month labels to make a January-based template line up with an October-based reality. This sounds like a small detail. It is not; it's the difference between a rollup that means something in a board meeting and one you have to caveat out loud.

Roll forward actuals line by line

This is the mechanical core of marketing budget planning for the next fiscal year: for each channel, next year's planned figure should start from this year's actual, adjusted for what you already know is changing — not from last year's plan, and not from a flat percentage bump applied across the board.

Here's a worked example using round, made-up numbers you'd replace with your own:

Say your paid-search line was planned at $60,000 this year and actually spent $71,000 — a variance of +$11,000, or about 18% over plan. Before you carry that forward, ask why: did the cost-per-click rise industry-wide, did you add a channel mid-year without moving budget into it, or was the original plan simply too low? If the answer is "the plan was too low," next year's planned figure should reflect something closer to $71,000, not $60,000 nudged up slightly. If the answer is "we added a channel we're dropping next year," the actual doesn't carry forward at all — you're building a new line, not rolling an old one.

Do this for every channel before you total anything. A budget total that adds up correctly at the bottom but was built from unexamined lines is not a plan — it's a subtotal wearing a plan's clothes.

A budget you can't explain line by line is a budget you can't defend line by line — and the approval conversation is where that gap gets found, not hidden.

For a fuller walk-through of this sequence — actuals audit, channel-by-channel roll-forward, and where each step tends to break — see the marketing budget planning process steps.

Build the channel-level budget from the bottom up

Once each line has an honest starting point, build the total from the channels up, not from a top-down percentage-of-revenue figure applied downward. Top-down numbers are useful for sanity-checking a total, not for allocating it.

For sanity-checking, the U.S. Small Business Administration's general guidance is that small businesses with under $5 million in annual revenue allocate roughly 7–8% of gross revenue to marketing. That's a range worth checking your own total against — not a target to hit exactly, and not a figure to apply to a much larger organization. Confirm the current guidance directly with the SBA before citing it externally, since benchmarks like this get revised.

It's also worth being precise about a figure you'll see quoted elsewhere: Gartner's 2025 CMO Spend Survey (402 CMOs and marketing leaders surveyed) found marketing budgets averaging 7.7% of overall company revenue, with 59% of CMOs reporting insufficient budget to execute their strategy. That survey's respondents skew heavily toward large enterprises — the reported median respondent revenue is well over $1 billion. It describes enterprise CMO reality, not a 10–200-employee company's, and shouldn't be used to size an SMB budget or reverse-engineered into a dollar figure for your organization. Use the SBA range for that instead.

With a sanity range in hand, build up: list every channel, its rolled-forward planned figure, and total it. Then compare the total to the range. If you're wildly outside it in either direction, that's a prompt to go back and question specific lines — not to force the total to match by shaving evenly across the board. For a structured starting document, the annual marketing budget template walks through this exact channel-by-channel build.

Lay the campaign calendar over the budget before you ask for sign-off

A budget total means little until it's tied to what actually happens across the year. Before the plan goes to approval, lay next year's campaign calendar over the channel budget and check that every planned campaign has a funding line behind it. This catches two common problems: campaigns that got planned with no budget attached (they'll get pulled mid-flight, which is worse than never planning them), and budget sitting in a line with no campaign attached to spend it against (which reads, fairly, as padding).

The rule worth adopting here: no campaign goes on the calendar without a budget line funding it, and no budget line exists without at least a placeholder campaign against it. This is a small discipline that prevents a large, familiar failure — the mid-year campaign pull because the money "was there on paper" but was never actually earmarked.

Defend the ask: what leadership actually wants to see

The approval conversation goes better when you can show, not just state, why the number is what it is. Bring three things: last year's actual-vs-planned variance by channel (with the "why" for each significant variance, not just the number), the roll-forward logic for each line in the new plan, and the calendar showing where the money goes and when.

What you're demonstrating isn't precision to the dollar — nobody expects that from a marketing budget. You're demonstrating that the number came from a process, not a guess, and that you'll be able to explain a variance in real time next year instead of reconstructing it after the fact. That's what turns a budget approval from a negotiation into a review. For a closer look at structuring that conversation itself, see the marketing budget approval process.

Set up the check-in cadence before year one starts

The plan you're approving now will be wrong within a quarter — not because it was built badly, but because every marketing plan drifts from reality the moment real spending starts. The difference between a plan that stays useful and one that's stale by February is whether you've built in a cadence to catch the drift early: a monthly or quarterly check-in where you log actuals, see the variance immediately, and adjust before a small gap becomes a large one.

This is also where a lot of the manual burden lives. Reconciling spreadsheets by hand, chasing down actuals from finance, and rebuilding the rollup each time is real, recurring work — even Gartner's marketing-technology research has found that marketers use only about a third of their martech stack's capabilities on average, down from 42% in 2022 and 58% in 2020, which suggests the tooling burden itself is part of the problem, not just the process around it. A plan that lives in a deck that goes stale within a week isn't a planning failure so much as a tooling one.

If you're building next year's plan by hand, the annual marketing plan template gives you a structured starting point — the channel budget, the roll-forward logic, and the calendar-to-budget linkage described above, in one workbook. If you'd rather have the variance and the rollup compute themselves as you log actuals each month, against a fiscal-year start you configure once, that's the workspace MarketPlans is built to be — one live plan, one budget, checked on a schedule instead of reconstructed at year-end. For more on the planning role itself, see director-level budget planning, and for the full set of budgeting tools and templates, the marketing budget tools hub is a good next stop.