Your software bill goes up every year because of a small number of mechanisms built into how the software is priced, and more than one can be working at once. The five to look for are seat growth, volume growth on usage pricing, features moving to higher tiers, renewal uplifts written into the contract, and add-ons that started as trials.
The useful job is working out which one is yours, because each has a different response.
Growth in seats and growth in volume
Seat pricing charges per person with a login. Event teams grow unevenly: seasonal staff, volunteers who need access for a fortnight, a contractor who handles the box office. Each login is a seat, and seats added for one event are easily left in place afterwards.
Usage pricing charges per ticket, per registration, per email sent or per contact stored. If your event grew, this bill grew with it. Check whether the unit price stayed the same while the quantity rose, or whether both moved.
Changes to the plan itself
Vendors reorganise their plans. A feature you relied on in a middle tier may move to a higher one, and you are moved up to keep it. The invoice shows a change of plan name, not a price rise, which is why it goes unnoticed.
Some contracts include an annual increase, stated as a fixed step or tied to an index. Read the renewal and pricing clauses of your actual contract, and where the sums are large, have a lawyer read them with you.
Then there are trial add-ons: a module switched on for a trial period, or discounted for the first year, that became a paid line when the period ended.
Compare two invoices a year apart
Take the invoice for the same month last year and this year, because usage in an events business swings with the calendar.
- Count the seats on each invoice. If the number rose, list who holds each login and whether they still need it.
- Find the quantity on every usage line (tickets, registrations, contacts, messages) and the unit price. Note which of the two moved.
- Compare the plan name. If it changed, find out which feature forced the move and whether you still use it.
- Look for rows on this year's invoice that were not on last year's. Those are add-ons. Ask who switched each one on.
- If quantities, plan and rows are identical and the total still rose, that is a renewal uplift. Find the clause.
Write one line for each difference with the amount it accounts for. The differences should add up to the whole increase. If they do not, ask the vendor's billing team about the remainder.
What to do about each one
Seat growth responds to housekeeping: remove logins after each event, and ask whether occasional users can have a restricted role under the vendor's terms. For volume growth, ask about a volume band or an annual commitment. Raise tier moves before renewal, not after. Uplifts are negotiated at signing, so put the renewal date and the notice period in the calendar well ahead. Trial add-ons get cancelled, or kept on purpose.
Then project it forward. Put this year's seats, units and any flat platform fee into our free calculator for per-seat and per-ticket bills and it will show the yearly and three-year totals.
When the pricing model is the problem
Sometimes the housekeeping is done and the bill still climbs, because the model charges for the exact thing you are trying to grow. Rented software is still often the right choice. We describe what event organisers rent and which parts can be rebuilt on a separate page, and our guide to renting versus owning software sets out when owning makes sense and when it does not. Hiro's own pricing is one flat monthly amount with no per-seat fees, so adding the whole event crew does not move it.