Match the same plan.
Use amounts for the same tier, currency, billing channel, account count, and tax treatment. A plan redesign is not a pure price comparison.
SUBSCRIPTION PRICE INCREASE CALCULATOR
What will this subscription price increase cost me?
Paste the old and new amounts from a price-change notice. See the percentage change, yearly impact, and cost over the months you expect to keep paying—using only the prices you enter.
THE NOTICE IN YOUR INBOX
Enter the before and after.
Use prices for the same plan, billing channel, currency, and tax treatment. The horizon uses an average normalized cost—not an exact billing calendar.
THE TRANSPARENT FORMULA
One actual change.
No forecast.
Change per charge(new price − old price) × accounts or seats
Percentage change(new price − old price) ÷ old price × 100
Annual impactchange per charge × charges per year
Selected horizonannual impact × months ÷ 12
BEFORE YOU DECIDE
Compare like with like.
Read the effective date.
The normalized horizon assumes the new amount applies throughout. It does not calculate proration, a delayed effective date, grandfathering, or your exact next bill.
Verify the terms.
Taxes, fees, promotions, refunds, cancellation rights, and future changes are outside the calculator. Confirm them in the provider’s current checkout and terms.
TURN THE NUMBER INTO A DECISION