Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Monthly revenue change
$5,050
Annual revenue change
$60,596
Churn you could absorb and break even
10.7%
New monthly revenue
$72,200
Annual gross profit change
$49,689
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Got your number — what next?
Pick one, it takes 20 secondsHow to use this
- 1Enter customers affected.
- 2Enter current price per customer ($/mo).
- 3Enter price increase (%).
- 4Enter expected extra churn from the increase (%).
- 5Enter gross margin (%).
- 6Read your monthly revenue change on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
Raising prices trades some customers for more revenue per remaining customer, and the arithmetic is usually far more forgiving than nerves suggest. This calculator applies a price increase across a customer base, applies an expected churn response, and reports net revenue change plus the break-even churn — the share of customers you could lose before the increase becomes a net negative. A 10% price rise typically stays profitable up to roughly 9% extra churn, and because the customers most likely to leave are also the lowest-value and highest-support ones, real-world outcomes usually beat the model.
Worked example
Using the values the calculator loads with:
Inputs
- Customers affected: 850
- Current price per customer: 79 $/mo
- Price increase: 12 %
- Expected extra churn from the increase: 4 %
- Gross margin: 82 %
Results
- Monthly revenue change: $5,049.68
- Annual revenue change: $60,596.16
- Churn you could absorb and break even: 10.7%
- New monthly revenue: $72,199.68
- Annual gross profit change: $49,688.85
What each field means
Inputs
- Customers affected
- The customers affected used in the calculation. Starts at 850 so you have a working example on load.
- Current price per customer ($/mo)
- The current price per customer used in the calculation, measured in $/mo. Starts at 79 $/mo so you have a working example on load.
- Price increase (%)
- The price increase used in the calculation, measured in %. Starts at 12 % so you have a working example on load.
- Expected extra churn from the increase (%)
- The expected extra churn from the increase used in the calculation, measured in %. Starts at 4 % so you have a working example on load. Accepted range: 0–100 %.
- Gross margin (%)
- The gross margin used in the calculation, measured in %. Starts at 82 % so you have a working example on load. Accepted range: 1–100 %.
Results
- Monthly revenue change
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Annual revenue change
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Churn you could absorb and break even
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- New monthly revenue
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Annual gross profit change
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How much churn should I actually expect from a price rise?
For a single-digit increase on existing customers with reasonable notice, extra churn is often 1-3%. Double-digit increases on price-sensitive SMB bases can hit 5-10%. Grandfathering existing customers for 6-12 months reliably cuts the response.
Should I raise prices for existing customers or only new ones?
New-only is the safest test and gives you clean data on conversion impact before touching the base. The revenue impact is slower, but you learn the elasticity without risking the book.
How much notice should I give?
Thirty days is the legal minimum in many contracts; 60-90 days with a clear value narrative and a route to lock in the old price annually produces materially less churn than a surprise invoice.
Why is break-even churn lower than the price increase?
Because the increase applies only to remaining customers while the churn removes their base revenue entirely. A 12% increase breaks even at 10.7% churn, not 12% — the gap widens as increases get larger.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
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Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). SaaS Price Increase Impact Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/saas-pricing-tier-uplift
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/saas-pricing-tier-uplift" target="_blank" rel="noopener">SaaS Price Increase Impact Calculator — RevenueLab</a> (2026).</p>
Source: [SaaS Price Increase Impact Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/saas-pricing-tier-uplift) (2026).