Minimum Income Floor Calculator
If you are self-employed and claiming Universal Credit, the Minimum Income Floor (MIF) sets a floor for your earnings. If your actual profits fall below it, DWP treats you as if you earned the MIF — reducing your UC more than your real earnings would. Under regulation 90 of the Universal Credit Regulations 2013, the starting point is the National Minimum Wage for your age multiplied by your expected weekly hours, converted to a monthly amount (× 52 ÷ 12). Under regulation 62(4), that figure is then converted to a net amount by deducting an amount for Income Tax and National Insurance that the Secretary of State "considers appropriate".
The regulations and DWP’s decision-maker guidance (ADM Chapter H4) do not set out a method for this deduction. This calculator therefore estimates it using the standard 2026/27 rates (the Personal Allowance, basic-rate Income Tax and employee Class 1 National Insurance), so DWP’s figure may differ from the net floor shown here.
Disclaimer
About this tool — how it works
This calculator works out the Universal Credit Minimum Income Floor (MIF) that applies to self-employed claimants. It multiplies your expected weekly hours (35 by default, DWP’s usual minimum hours expectation) by an hourly rate you set, defaulting to the National Living Wage, then converts the result to a gross monthly threshold by multiplying by 52 and dividing by 12 (regulation 90, Universal Credit Regulations 2013). Regulation 62(4) then converts that threshold to a net floor by deducting an amount for Income Tax and National Insurance that the Secretary of State considers appropriate. The regulations and DWP’s decision-maker guidance (ADM Chapter H4) do not set out a method for this deduction, so the tool shows the gross threshold, an estimated deduction using standard current rates, and the resulting net floor as an estimate. DWP’s figure may differ. It compares that floor against the actual monthly profit you enter and tells you which one DWP would use.
If your real earnings are below the MIF, the tool then runs the rest of the Universal Credit taper using the higher MIF figure instead of your actual profit: it subtracts your work allowance (lower if you also receive the UC housing cost element) and applies the 55% taper to what remains, showing this as the deduction from your UC award.
The calculator does not check whether the MIF actually applies to you. It does not know whether you are within your first 12 months of self-employment, whether DWP has agreed a temporary earnings dip, or whether you fall into an exempt group such as claimants with limited capability for work — all of which can mean the MIF should not be applied at all. It also does not calculate your full Universal Credit award, only the earnings-related deduction. Treat the figures as an illustration and confirm your position on GOV.UK or with a benefits adviser.
Frequently asked questions
How is the Minimum Income Floor calculated?
Regulation 90 of the Universal Credit Regulations 2013 sets the starting point: the National Minimum Wage for your age multiplied by your expected weekly hours, converted to a monthly amount by multiplying by 52 and dividing by 12. The tool uses 35 hours and the National Living Wage for age 21+ by default, and you can change both. Regulation 62(4) then converts that to a net amount by deducting an amount for Income Tax and National Insurance that the Secretary of State considers appropriate. The regulations and DWP's decision-maker guidance (ADM Chapter H4) do not set out a method for this deduction, so the tool estimates it using standard current rates and DWP's figure may differ.
What happens if my actual earnings are below the MIF?
The tool shows this clearly and then uses the MIF figure, not your real profit, in the rest of the calculation — meaning DWP treats you as though you earned more than you actually did, which reduces your Universal Credit more than your real earnings alone would.
How does the tool work out the effect on my UC?
It takes whichever is higher — your actual earnings or the MIF — subtracts your monthly work allowance (lower if you also get the UC housing cost element), and applies the standard 55% UC taper to what is left, showing this as a deduction from your overall award.
Does the MIF always apply?
No, and the tool does not check this for you. The MIF does not apply during your first 12 months of self-employment (the start-up period), during a DWP-approved temporary dip in earnings, or if you fall into an exempt group. Confirm your own status on GOV.UK or with an adviser before relying on the figure shown.