Compounding, year by year
Salary Increase Over Time
A salary increase does not sit still — a raise this year becomes the base for next year's raise, so a steady salary increase compounds into a much bigger number than simple addition suggests. Set a starting salary, a yearly raise percent, and a number of years to watch it happen.
- Compound projection
- Up to 40 years
- Inflation-adjusted view
- Free, no sign-up
Project a salary increase over time
≈$3,362/yr average gain
| Year | Salary | Increase that year | Cumulative gain |
|---|
How to Project a Salary Increase Over Time
Three inputs are enough to run a multi-year salary increase projection:
- Enter a starting salary. Use your current pay, or an offer you're comparing, as the base year for the salary increase projection.
- Set the expected annual raise. Most people use their typical merit raise — often 3% to 5% — as the yearly salary increase rate. Each year's salary increase is applied to the previous year's total, not the original number, which is what makes the projection compound.
- Choose a time horizon. Pick anywhere from 1 to 40 years. The longer the span, the more a small salary increase snowballs into a large gap versus a flat salary.
Worked example: the compound formula is final salary = starting salary × (1 + raise ÷ 100) years. Starting at $70,000 with a 4% annual salary increase for 10 years: $70,000 × 1.0410 ≈ $103,617. That's $33,617 of total growth — roughly $3,362 a year on average, though each individual salary increase is a little larger than the one before it because it's compounding on a bigger base.
Why a Salary Increase Compounds
A one-time raise is easy to picture: add a percent, get a new number. A salary increase repeated every year for a decade or two behaves differently, and intuition usually underestimates it. Each year's salary increase is calculated on last year's salary, not the original one, so the dollar value of the raise keeps climbing even when the percentage stays flat. Ten straight years of a 4% salary increase does not add up to a 40% gain — it compounds to roughly 48%, because year six's raise is bigger in dollars than year one's, and year ten's is bigger still.
This is also why a steady, modest salary increase can beat a single large bump over a long enough stretch. Compare $70,000 growing at 4% a year against a one-time $10,000 bump that then sits flat: within about six years the compounding salary increase overtakes the lump sum and never looks back, because every year it's growing off a larger base while the flat raise stays fixed. A smaller salary increase, applied consistently, is a compounding machine; a bigger one-off raise is not.
One caveat worth naming: none of this accounts for inflation unless you turn it on. The optional toggle above deflates every projected year by a flat 3.5% CPI assumption, so you can see a salary increase in real, purchasing-power terms rather than nominal dollars. A 3% salary increase against 3.5% inflation is quietly losing ground; a 4% or 5% salary increase is the one that visibly outruns rising prices.
More Tools for Planning a Raise
This salary increase projection pairs well with the rest of the raise math:
- Pay Raise Calculator — turn this year's single raise into your new pay by hour, week, and year, with an after-tax estimate.
- Raise Percentage Calculator — find the exact percent behind a dollar raise before you plug a rate in here.
- Average Raise Percentage — current U.S. benchmarks, so the annual raise you're projecting is a realistic one.
Salary Increase Over Time FAQ
How much will my salary grow in 10 years?
It depends on the annual rate, but a 4% yearly salary increase on $70,000 compounds to about $103,617 after 10 years — a $33,617 gain, or 48%. Change the starting salary and rate above to project your own numbers.
What is the formula for salary increase over time?
Final salary = starting salary × (1 + annual raise ÷ 100) raised to the power of the number of years. It's the same compounding formula used for interest, applied to a yearly salary increase instead of a deposit.
Is a 3% annual salary increase good long-term?
Over one year, a 3% salary increase barely clears typical inflation. Over 20 years, though, compounding does real work: $55,000 growing at 3% a year reaches roughly $99,341 — nearly double — even though no single year's raise felt dramatic. Long horizons make a modest but consistent salary increase look much better than it feels year to year.
How many years until my salary doubles?
Use the rule of 72: divide 72 by the annual raise percent. A 4% salary increase doubles a salary in about 72 ÷ 4 ≈ 18 years; a 6% salary increase doubles it in about 12. The result-grid above computes this for whatever rate you enter.
Should I use average or merit raise numbers for projection?
Merit-only numbers tend to run higher than blended company-wide averages, which include years with no raise at all. For a realistic long-run salary increase projection, most people land somewhere between their last few merit raises and the broader average raise percentage for their field — then adjust the rate above and compare both.