How the calculation works
Each line is one cost: a category, an item from that category’s list (Other if it isn’t listed), an amount and whether it’s billed monthly, annually or once in the budget year. Recurring lines can also take the increase you expect next year. The calculator works in US dollars and doesn’t apply any rates or benchmarks of its own: every figure comes from the lines you enter.
- Budget-year amount: a monthly line × 12; an annual or one-time line as entered.
- Per month: the recurring lines’ budget-year amounts ÷ 12, your monthly run rate. One-time costs are never in it. An annual line is spread evenly over the months, so it isn’t what you will be invoiced in a given month.
- One-time total: the sum of the one-time lines, shown on its own and not in the monthly figure.
- Annual budget: the recurring and one-time costs together.
- Recurring and one-time split: each total ÷ the annual budget.
- Categories: each category’s budget-year amount and its share of the annual budget, largest first. A category with both kinds of line shows how much of it is one-time.
- Next year’s recurring costs: each recurring line’s budget-year amount × (1 + its increase); a line with no increase is carried flat. The change compares next year’s recurring costs with this year’s. One-time costs are left out of both sides, because they don’t carry over. This appears only when at least one line has an increase.
The report rounds to whole dollars and shares to one decimal, so the shares may not add to exactly 100%. The budget sheet keeps cents.
The categories are connectivity, voice and UCaaS, cloud, SaaS, security, hardware refresh, MSP and IT staff, projects and other, and each has a short list of common items, such as internet, MPLS/SD-WAN and wireless backup under connectivity. Use the closest one, or Other: the split is for your own planning, and the calculator doesn’t compare it with anything.
Worked example
A company’s budget lines for the year:
| Line | Category | Item | Amount | Increase next year |
|---|---|---|---|---|
| 1 | Connectivity | Internet | $2,400 a month | 3% |
| 2 | Voice and UCaaS | UCaaS phone system | $1,500 a month | none |
| 3 | Cloud | IaaS and hosting | $4,000 a month | 10% |
| 4 | SaaS | Productivity suite | $36,000 a year | 5% |
| 5 | Security | MDR and SOC | $24,000 a year | 8% |
| 6 | MSP and IT staff | Managed services | $6,000 a month | 4% |
| 7 | Hardware refresh | Laptops and desktops | $30,000 one-time | |
| 8 | Projects | Migration | $15,000 one-time |
Budget-year amounts: $28,800 (2,400 × 12), $18,000, $48,000, $36,000, $24,000, $72,000, $30,000 and $15,000.
- Recurring: $28,800 + $18,000 + $48,000 + $36,000 + $24,000 + $72,000 = $226,800 (83.4% of the budget)
- Per month: $226,800 ÷ 12 = $18,900 a month in recurring costs
- One-time total: $30,000 + $15,000 = $45,000 (16.6%), not in the monthly figure
- Annual budget: $226,800 + $45,000 = $271,800
By category, largest first: MSP and IT staff $72,000 (26.5%), Cloud $48,000 (17.7%), SaaS $36,000 (13.2%), Hardware refresh $30,000 (11%, one-time), Connectivity $28,800 (10.6%), Security $24,000 (8.8%), Voice and UCaaS $18,000 (6.6%), Projects $15,000 (5.5%, one-time).
Next year’s recurring costs: $28,800 × 1.03 = $29,664; $18,000 flat; $48,000 × 1.10 = $52,800; $36,000 × 1.05 = $37,800; $24,000 × 1.08 = $25,920; $72,000 × 1.04 = $74,880. Together $239,064, up $12,264 (5.4%) from $226,800. The cloud line (IaaS and hosting) moves the most, up $4,800.
Reading the report
- The monthly figure and the one-time total. The monthly figure is what the budget costs a month to keep running, recurring costs only, so it’s the starting point for next year. One-time costs are a separate total for the year: plan when each falls due. For cash timing, also check when each annual line is invoiced.
- The largest category. It’s where a review of contracts and usage has the most money to work with. It isn’t a sign the category is too large: the right split depends on the business.
- Next year’s change. It shows what the increases you entered add before any new projects. Each line’s increase comes from you, so it’s only as good as the contracts and plans behind it.
Building the budget from your contracts
Most recurring lines are contracts. The IT renewal calendar lists them with their renewal dates, notice deadlines and escalators, which tells you which lines may change next year and by how much. The price escalator calculator shows what an annual increase adds over a contract term, and the hardware refresh budget calculator turns device counts and replacement cycles into a yearly hardware line.
To see how your total compares with published figures for IT spend as a share of revenue, use the IT budget benchmark.

