ShiftWise v0.5

Track your hours. Know your pay.

Offline · Local data

PROJECTED TAKE-HOME

£0.00

Gross pay—

Overtime gross—

TOIL deducted—

TOIL for this payslip

0 hrs

Drag the slider or type exact hours. Both use the same value. This updates the forecast immediately; no second deduction occurs when you take the leave.

Hours to bank

Logged overtime hours

—

Gross sacrificed—

Estimated net sacrificed—

New take-home—

Automatic payroll estimates

v0.5

You should not need to know holiday pay or irregular taxable extras before payroll runs. ShiftWise estimates them from the recent payslips used to calibrate this beta. Override only if you actually know the figure.

Estimated holiday pay—

Estimated other taxable pay—

I know the actual figures / advanced override

Holiday pay (£)

Other taxable pay (£)

Pay forecast

Payslip month

Expected payday

—

Logged overtime0 hrs

Available TOIL0 hrs

Estimated PAYE—

Estimated NI—

Pension—

Other deductions—

Log overtime for a payslip

Work date

Hours (decimals accepted)

Payslip month receiving this overtime

Overtime category

Overtime entries

Rate breakdown

Pay and payroll settings

Annual basic salary (£)

Pay frequency

Payday rule

Fixed payday (1–31)

Four-weekly payday anchor

Typical overtime payment delay (informational only)>

Tax code (e.g. 1282L)

NI category

Pension: % of pensionable basic + CRTP

Fixed pension per pay period (£, overrides % if > 0)

CRTP / pensionable allowance (£ per period)

Fixed taxable allowances (£ per period)

Holiday pay fallback (£ per period)

Other taxable earnings fallback (£ per period)

Plain hourly rate override (£)

PAYE basis

Taxable pay YTD BEFORE this payslip (£)

PAYE paid YTD BEFORE this payslip (£)

Uses 2026/27 England/NI/Wales tax bands and NI category A. PAYE month-1 or approximate cumulative (requires previous taxable pay and tax YTD). Not an official payroll calculation. Payroll rounding, unusual tax codes, taxable benefits, student loans and pension arrangements may differ. /0 on the payslip does not by itself establish PAYE basis; verify with payroll.

Custom overtime rates

Edit labels and multipliers freely. Decimals are preserved while typing. Existing logged shifts retain the rate used when entered.

Other deductions

Fixed amounts per pay period. Choose whether a deduction reduces taxable earnings, reduces both taxable and NI earnings, or comes off net pay.

Payslip accuracy score

When the payslip arrives, record actual take-home to see how close the forecast was. A snapshot of the current prediction is saved alongside it.

Payslip month

Actual take-home (£)

Actual gross (£, optional)

Bring over v0.3 data

Optional: copy your existing v0.3 entries from this same browser. Your original v0.3 data remains untouched. Review payslip-month assignments after importing.

Backup and restore

Your entries are stored in this browser on this device. Export a backup regularly, especially before clearing browser data or changing phones.

Data management

ShiftWise v0.5 beta · Independent, unofficial pay-estimation tool. No connection to any employer, HMRC, NHS or government department. Last-working-day calculations exclude weekends but do not yet exclude bank holidays. Four-weekly cycles use a configurable anchor date. Overtime is assigned to the selected payslip month. Your data remains in your browser unless you export it.