Pro-rata salary calculator

Pro-rata salary calculator

Someone joined, left, or had unpaid days. What do you pay them?

What happened?
The salary and the dates
A whole month, before allowances
Any date in it
House allowance
15% is the usual convention
Pay it on

Calendar days is the recommended basis — a rest day after six days worked is a paid day, so it carries a day’s value.

Working week
Days worked a week
Pay for the period

KES0

Enter a salary and a date.

Net payDeductions

Calendar days00 a day · 0 days
Working days00 a day · 0 days
The monthly package
Basic pay0
Full monthly payWhat a whole month comes to0
Difference between the basesFor this month0
What you pay
Gross payEverything above, added up0
What comes off
SHIF2.75% of gross, minimum 3000
NSSFTier I + II: 00
Housing levy1.5% of gross0
Taxable pay0
Income taxBefore relief0
Personal relief0
PAYE0
Total deductions0
Net payWhat reaches the employee0

Figures and review date. PAYE bands, reliefs and the taxable-pay rules from the Kenya Revenue Authority; NSSF from the NSSF; SHIF from the Social Health Authority. Reviewed . This is a calculator, not advice — it works only from the figures you enter and takes no account of your contracts or policies. Check any figure before you rely on it.

Two ways to price a day

Calendar days is the recommended basis. It divides the year by 365, so every day of the month is worth the same and the daily rate never changes. It also reflects how the week actually works: a rest day after every six days worked is a paid day, so it should carry a day's value like any other.

Working days divides the month by the days worked in it, so a day off costs more and the daily rate moves from month to month.

Both are shown. Pay the basis the contract states.

House allowance

A monthly rate is exclusive of house allowance — it goes on top. A daily or hourly rate already includes it.

That is how the wage orders publish them, and it is the commonest place a figure goes wrong. Set it here as a percentage of basic, as a fixed amount, or off.

Why the net pay does not just scale

PAYE is charged on what is actually paid in the month. A part month falls into lower bands and personal relief is still given in full, so a larger proportion of it reaches the employee than in a full month.

Need a hand?

A calculator answers the arithmetic. The judgement — what a contract provides, how a policy applies, what a particular case needs — is a conversation.

ACCUREX advises on exactly this, every day. Talk to an HR consultant.

Common questions

Whichever the contract states. Where it is silent, the calendar basis is simpler to apply consistently because the daily rate is the same in every month of the year.

Yes — both are percentages of the month's gross pay. SHIF has a floor, so below a gross of about 10,909 it stops falling.

Joiners and leavers, without the recalculation

PiPO HRIS pro-rates from the dates already on the employee record, on the basis your policy sets.