Pay Rise Calculator — After-Tax Salary Increase

What a pay rise is actually worth

A 5% pay rise on a 40,000 salary looks like 2,000, and the take-home figure is smaller once income tax and social contributions come out. The tool's loaded example makes the shape clear: a 5% rise on 60,000 is 3,000 gross, and at a 30% effective rate 2,100 net, which is 175 a month or 40.38 a week. The other half of the picture is that rises compound. Thirty years of 5% annual rises turn a 40,000 salary into 172,878 in nominal terms, while 3% annual rises reach 97,090 over the same period. Two percentage points a year is a final salary 1.78 times larger, which is why the annual percentage matters far more than any single year's cash figure suggests.

The difference between "pay rise" and "inflation adjustment"

Many annual pay rises are inflation adjustments rather than increases in earning power: an attempt to hold real pay level as prices rise. A 3% rise in a year of 3% inflation leaves purchasing power unchanged, because the same salary buys the same basket. Real growth requires a rise above the inflation rate, and the gap between the two is the part that changes anything. This distinction is why wage statistics are usually reported in both nominal and real terms, and why a run of years with nominal rises can still leave real pay flat or lower. The tool works in nominal terms, so subtracting expected inflation from the rise percentage before entering it produces a real-terms view instead.

The annual rise math that determines careers

Three scenarios over a 30-year horizon, all starting at 40,000:

2% annual rises: 40,000 grows to 72,454 by year 30, with cumulative earnings of about 1.62M.

4% annual rises: 40,000 grows to 129,736, with cumulative earnings of about 2.24M.

6% annual rises: 40,000 grows to 229,740, with cumulative earnings of about 3.16M.

The gap between 2% and 6% annual rises across those thirty years is roughly 1.54M in total earnings, and the year-30 salary triples. What produces that gap is not one negotiation but the pattern across many of them, since each year's rise is applied to a base that every previous rise has already lifted. A run of slightly-above-average increases and a run of slightly-below-average ones diverge slowly at first and then very fast.

The base salary anchor effect

Future rises are almost always calculated as a percentage of current salary, which makes the starting figure at any employer the base every later increase multiplies. A 5,000 difference at the point of hire is therefore not a 5,000 difference. Over ten years of 4% rises that gap grows to 7,401 a year by year ten and about 60,031 in cumulative earnings across the decade, and it keeps widening for as long as the tenure lasts. The same logic runs in reverse: a below-market starting figure is difficult to correct later, because internal rises are usually constrained to a percentage band rather than reset to market.

Why most pay rise conversations fail

Annual review conversations are shaped by structure more than by argument. A manager typically holds a fixed budget for increases across a team, so distributing more to one person means less for another, and the allocation is often decided before the conversation on the basis of a performance ranking. What tends to shift the outcome is information that changes the ranking or the role rather than the framing of the request: a documented external offer establishing a market rate, a measurable contribution to revenue or cost, or a scope change that justifies a different band. An appeal based on tenure or effort alone competes with everyone else making the same appeal.

Pay rise vs promotion: which to push for

A typical annual rise sits in the low single digits, while a promotion usually carries a larger step, commonly in the 10 to 20% range, alongside expanded responsibility. On the arithmetic, a 10% step is worth about two years of 5% rises and a 20% step about four, since 1.05 squared is 1.1025 and 1.05 to the fourth is 1.2155. The practical implication is that a change in band or title can move the number further than percentage argument within a band, because it changes what the role is being paid for rather than where the person sits inside a fixed range. The compounding then continues from the higher base.

When to leave for a pay rise

Job moves have historically produced larger increases than staying, since an external offer is priced against the current market while an internal rise is priced against a budget. Figures quoted for the gap vary widely by country, sector and labour-market conditions, so a single pair of numbers travels badly. Frequent moves carry their own costs: repeated onboarding, a shorter record at each employer, and the loss of internal promotion tracks that usually require time to reach. The trade-off is between capturing market rate through occasional moves and building the tenure that internal advancement tends to require, and where the balance sits depends on the market and the role rather than on a general rule.

The tax wedge on pay rises

A rise that crosses a tax band threshold delivers less take-home than the gross suggests, because the portion above the threshold is taxed at the higher marginal rate. Combined with social contributions and any benefit that tapers with income, the effective marginal rate on a rise can sit well above the average rate on existing pay, so part of a rise can arrive as little more than half of it. This calculator applies a single effective rate, so entering the marginal rate that applies just above current salary gives a closer answer for a rise than entering the overall average. At the loaded values the difference is visible directly: 30% leaves 2,100 of a 3,000 rise, while 45% leaves 1,650.

The salary review timing

Most employers run an annual review cycle with budgets allocated around it, which makes timing part of the arithmetic rather than a detail. Requests outside the cycle compete against budgets already committed. Within it, the material that tends to carry weight is specific: achievements expressed in measurable terms rather than effort, external market data for the role from published surveys or recruiter conversations, and a named target figure with the reasoning behind it. Without those, the conversation tends to default to whatever the standard uplift is for the cycle.

What this calculator shows

This tool computes the direct effect of a rise on take-home pay across annual, monthly and weekly periods. It does not model negotiation, promotion, job changes, inflation, or crossings between tax bands, and it applies one flat effective rate rather than a bracket structure. The figure it returns is the arithmetic starting point, and everything above describes the context that sits around it.